OMB APPROVAL OMB Number: 3235-0570 Expires: January 31, 2017 Estimated average burden hours per response.....20.6 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES 		Investment Company Act file number 811-21823 Pioneer Series Trust V (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terrence J. Cullen, Pioneer Investment Management, Inc., 60 State Street, Boston, MA 02109 (Name and address of agent for service) Registrant's telephone number, including area code: (617) 742-7825 Date of fiscal year end: August 31 Date of reporting period: September 1, 2014 through February 28, 2015 Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles. A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. ss. 3507. ITEM 1. REPORTS TO STOCKHOLDERS. Pioneer Absolute Return Bond Fund -------------------------------------------------------------------------------- Semiannual Report | February 28, 2015 -------------------------------------------------------------------------------- Ticker Symbols: Class A ABRDX Class C ARCBX Class K ARBKX Class Y ARBYX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents President's Letter 2 Portfolio Management Discussion 4 Portfolio Summary 10 Prices and Distributions 11 Performance Update 12 Comparing Ongoing Fund Expenses 16 Schedule of Investments 18 Financial Statements 31 Notes to Financial Statements 39 Approval of Investment Advisory Agreement 59 Trustees, Officers and Service Providers 64 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 1 President's Letter Dear Shareowner, Today's market environment presents numerous opportunities as well as challenges for investors. A disparate global economic landscape has formed, with the U.S. facing prospects for continued growth, while questions abound regarding the outlook for other regions. Employment, household income, and corporate profits have been rising in the U.S. and inflation pressures remain low. However, many countries across Europe as well as Japan face muted growth. In addition, a variety of factors have clouded the outlook for countries such as Russia and Brazil and China's investment-driven economy continues to slow. Monetary policies of major central banks are diverging, reflecting different economic conditions. With the U.S. economy no longer in need of extraordinary stimulus, the Federal Reserve Board may be closer to raising short-term interest rates. Conversely, the European Central Bank and the Bank of Japan are likely to be adding, not removing, stimulus. While we anticipate continued growth for the U.S., the outlook is far from certain, nor is the outlook for other regions necessarily dire. It remains to be seen how weakness outside the U.S. will affect global growth and whether easing monetary policies in other regions will spur an economic recovery. While these economic conditions may lead to increasing volatility in 2015, we believe the opportunity for investors to earn attractive returns will persist. However, in an environment where interest rates remain low and equity valuations have been buoyed by an extended bull market, we believe it is imperative investors adhere to a disciplined investment approach that is consistent with one's goals and objectives, being mindful of the tradeoff between risk and return. Since 1928 Pioneer's investment professionals have been focused on identifying and capitalizing on investment opportunities that present themselves in a variety of ever changing market conditions, including those we face today. We seek returns consistent with our strategies' stated style and 2 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 objectives and consistent with our shareholders' expectations, regardless of market conditions. We believe our shareowners benefit from the experience and tenure of our investment teams, the insights generated from extensive research resources and a commitment to prudent risk management that seeks to mitigate downside and preserve returns over time. We encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short- and long-term goals, and to implement such a plan in a disciplined manner, as we do when deploying strategies on behalf of our shareowners. We greatly appreciate your trust in us in the past and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones President and CEO Pioneer Investment Management USA, Inc. Any information in this shareowner report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. These statements should not be relied upon for any other purposes. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 3 Portfolio Management Discussion | 2/28/15 In the following interview, portfolio managers Tanguy Le Saout and Cosimo Marasciulo discuss the factors that influenced Pioneer Absolute Return Bond Fund's performance during the six-month period ended February 28, 2015, as well as their investment approach in managing the Fund. Mr. Le Saout, Head of European Fixed Income and a portfolio manager based in Pioneer's Dublin office, and Mr. Marasciulo, Head of Government Bonds and a portfolio manager at Pioneer, also based in Dublin, are responsible for the day-to-day management of the Fund. Q How did the Fund perform during the six-month period ended February 28, 2015? A Pioneer Absolute Return Bond Fund's Class A shares returned -1.13% at net asset value during the six-month period ended February 28, 2015, while the Fund's benchmark, the Bank of America Merrill Lynch (BofA ML) 3-Month U.S. Treasury-Bill Index, returned 0.01%. During the same period, the average return of the 230 mutual funds in Lipper's Alternative Credit Focus Funds category was -0.65%, and the average return of the 427 mutual funds in Morningstar's Non-Traditional Bond Funds category was -0.25%. Q Can you provide an overview of the Fund's investment approach? A Certainly. The big picture is that we aim to have the Fund's annualized return exceed that of three-month Treasury bills on a rolling three-year annualized basis, while targeting portfolio volatility that is similar to that of T-bills as well. To achieve that goal, we seek to provide positive absolute Fund returns over most trailing 12-month periods, regardless of market conditions. Obviously, if we are going to be successful in achieving our objectives, the Fund's returns cannot be overly dependent on the price performance of one or more fixed-income categories. Therefore, in seeking positive Fund returns regardless of market conditions, we divide the portfolio into two distinct parts. The core of the Fund's portfolio is currently invested in three-month Treasury bills. The remainder of the Fund's assets are invested in a range of strategies, each of which is designed to provide the Fund with alpha, or excess return. (Alpha measures risk-adjusted performance, representing excess return relative to the return of the benchmark.). Each strategy is 4 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 focused on a different segment of the fixed-income market. Importantly, each strategy seeks to benefit from both positive and negative markets. This means the Fund is positioned in some asset categories within the broad bond market through long exposures, while also positioned against other asset categories via short exposures. This, in our view, provides the Fund with an added level of diversification* across different asset classes when compared with investment vehicles where asset allocation and security selection are more closely tied together. Importantly, we closely track the portfolio risks we have assumed across all of the alpha-related strategies, and operate within an overall "risk budget" for the portfolio based on our objective of avoiding negative Fund returns over a 12-month period. Q Can you review the principal portfolio investment strategies you implemented during the six-month period ended February 28, 2015? How did those strategies help or hinder the Fund's performance? A The Fund's performance was hurt during the period by our shorting of two- and five-year U.S. Treasuries, which was done in anticipation of rates rising as market expectations of future Federal funds rate hikes solidified. The position was negatively affected as U.S. interest rates made an unprecedented intra-day roundtrip journey in mid-October 2014, declining sharply on a wave of disappointing economic data releases before nearly returning to their starting point. We closed the position at a loss prior to the rebound in rates. The Fund's interest-rate exposure in Europe also detracted from performance as we shorted longer-term rates, which declined on news of the European Central Bank's (ECB's) plans to engage in purchases of sovereign debt in the euro zone in an effort to support sovereign bonds. In addition, a trade that sought to have the Fund benefit from interest-rate disparities among peripheral European markets detracted from performance. Specifically, we believed 10-year Italian rates had overshot on the downside versus the German yield curve; however, the 10-year Italian bond yield declined further on the news of the ECB's planned stimulus. In addition to the portfolio's core position in 3-month Treasuries, we had a number of different positions across the alpha portion of the portfolio during the period. The Fund's currency strategy was the leading positive contributor to returns during the six-month period. Specifically, the portfolio was long the U.S. dollar versus other major currencies, including * Diversification does not assure a profit nor protect against loss in a declining market. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 5 the Japanese yen, the British pound and the euro. The Fund's positioning versus the euro was especially advantageous, as the currency declined after the ECB's stimulus announcement. In addition, the Fund was underweight the U.S. dollar versus a number of high-yielding currencies -- in particular, the Indian rupee, Turkish lira and South African rand. The underweights added to the Fund's performance due to the higher incremental income generated from holdings in those markets as compared with very low U.S. interest rates. On the relative value side of the portfolio, one strategy we used during the period was to seek to take advantage of the shape of various yield curves. In that vein, we had positioned the portfolio for Italy's yield curve to flatten by overweighting that country's 30-year bond, with a corresponding underweight of the short end of the curve. The position worked well as Italian long rates declined in the wake of the ECB's announcement about bond purchases. The Fund also had a position designed to benefit from a narrowing of market expectations regarding the future spread (yield difference) between European five-year rates versus U.S. and Swiss five-year rates. The position aided the Fund's returns as Swiss rates fell on the news that the country's central bank would discontinue efforts to cap the value of its currency against the euro. Another relative value trade was designed to benefit from an eventual narrowing of the yield differential provided by the "dollar block" currencies of Canada, New Zealand and Australia against the U.S. dollar. The position helped returns as Canada's central bank unexpectedly cut its benchmark interest rate, leading yields to decline along the curve. With regard to specific positions, we implemented a number of trades that paired a long position in the debt of one issuer with a short position in the debt of another issuer. Examples of pair trades that detracted from the Fund's performance during the period included a long position in integrated oil giant BP, which was matched with a short position in U.K water company United Utilities, and a long in information services firm Experian that was paired with a short in Finnish energy company Fortrum. Pair trades that contributed to the Fund's performance included a long position in commodity trading and mining company Glencore, which was matched with a short position in Spanish electric utility Iberdrola, and a long in auto manufacturer Volvo that was paired with a short in German tire and auto parts manufacturer Continental AG. 6 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Q Could you discuss the use of derivative positions in the portfolio during the six-month period ended February 28, 2015, and their effect on the Fund's performance? A Virtually all of the portfolio's strategies are implemented via derivatives, and so the Fund's performance will always be affected by derivatives trading. For instance, when we want to short U.S. Treasuries, we will do so mainly by selling Treasury futures or sometimes by buying "put" options. Similarly, in the currency sleeve of the Fund, we use forwards and options to gain the desired exposures. With respect to credit markets, where there are no liquid futures contracts, we may use credit default swaps to manage the portfolio's exposures. In other situations, we utilize instruments such as interest-rate or inflation swaps to implement our strategies. Q What is your assessment of the current macroeconomic climate and the opportunities it may present? A Looking at the U.S. economy, the employment picture has improved notably, and wages, which typically lag employment trends, should follow in time. Market participants appear to have become somewhat complacent with respect to the extent and pace of interest-rate increases once the U.S. Federal Reserve begins to remove its very accommodative monetary policy stance. Higher U.S. rates would likely support a continued strengthening for the U.S. dollar versus other major currencies, although we are cautious in the short-term given the extent of the dollar's recent gains. The ECB surprised many other market participants with its announcement of full-blown quantitative easing involving sovereign bond purchases. At current yield levels, European bonds do not reflect any inflation premium; however, we believe the ECB's intervention is likely to have much of the desired impact on the region's economy, and we will look for entry points where the Fund could possibly take advantage of any upward shift in investor sentiment regarding inflation and interest rates. These are among the macroeconomic factors we will monitor closely as we seek to inform the various positions implemented within the alpha portion of the portfolio. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 7 Please refer to the Schedule of Investments on pages 18-30 for a full listing of Fund securities. All investments are subject to risk, including the possible loss of principal. Pioneer Absolute Return Bond invests in derivatives, such as options, futures, inverse floating-rate obligations, and swaps, among others, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on the performance of the portfolio. The Fund may take short positions, which involves leverage of its assets and presents additional risks. The Fund may invest in credit default swaps, which may in some cases be illiquid, and they increase credit risk since the Fund has exposure to both the issuer of the referenced obligation and the counterparty to the credit default swap. The Fund employs leverage, which increases the volatility of investment returns and subjects the Fund to magnified losses. The Fund is subject to duration risk. Duration seeks to measure the price sensitivity of a fixed income security to interest rates. The longer a portfolio's duration, the more sensitive it will be to changes in interest rates. Investments in fixed-income securities involve interest rate, credit, inflation, and reinvestment risks. When interest rates rise, the prices of fixed-income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed-income securities will generally rise. Investments in the Fund are subject to possible loss due to the financial failure of issuers of underlying securities and their inability to meet their debt obligations. Prepayment risk is the chance that an issuer may exercise its right to prepay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income and lose the opportunity for additional price appreciation. Investments in high-yield or lower-rated securities are subject to greater-than-average price volatility, illiquidity and possibility of default. The securities issued by U.S. Government-sponsored entities (e.g., FNMA, Freddie Mac) are neither guaranteed nor issued by the U.S. Government. The portfolio may invest in mortgage-backed securities, which during times of fluctuating interest rates may increase or decrease more than other fixed-income securities. Mortgage-backed securities are also subject to pre-payments. The Fund may invest in subordinated securities, which may be disproportionately adversely affected by a default or even a perceived decline in creditworthiness of the issuer. 8 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates, economic, and political conditions. The Fund may invest in event-linked bonds and other insurance-linked securities. The return of principal and the payment of interest on insurance-linked securities are contingent on the non-occurrence of a pre-defined "trigger" event, such as a hurricane or an earthquake of a specific magnitude. The Fund may invest in floating-rate loans; the value of collateral, if any, securing a floating-rate loan can decline or may be insufficient to meet the issuer's obligations or may be difficult to liquidate. The Fund is non-diversified, which means that it can invest a large percentage of its assets in the securities of any one or more issuers. This increases the Fund's potential risk exposure. There is no assurance that these and other strategies used by the Fund will be successful. The Fund is not intended to outperform stocks and bonds during strong market rallies. Please see the prospectus for a more complete discussion of the Fund's risks. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Pioneer Investments for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is no guarantee of future results. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 9 Portfolio Summary | 2/28/15 Portfolio Diversification -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] U.S. Government Securities 69.8% Foreign Government Bonds 28.3% Swaptions 1.3% Options 0.6% Geographical Diversification -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] United States 71.7% Italy 9.8% Germany 8.2% Ireland 4.7% Spain 3.0% Japan 2.6% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total investment portfolio)* 1. U.S. Treasury Bills, 7/23/15 27.17% -------------------------------------------------------------------------------- 2. U.S. Treasury Bills, 11/12/15 19.82 -------------------------------------------------------------------------------- 3. Deutsche Bundesrepublik Inflation Linked Bond, 0.1%, 4/15/23 8.16 -------------------------------------------------------------------------------- 4. U.S. Treasury Bills, 4/2/15 7.06 -------------------------------------------------------------------------------- 5. U.S. Treasury Bills, 1/7/16 6.51 -------------------------------------------------------------------------------- 6. Italy Buoni Poliennali Del Tesoro, 2.35%, 9/15/19 6.38 -------------------------------------------------------------------------------- 7. U.S. Treasury Bills, 3/5/15 5.43 -------------------------------------------------------------------------------- 8. U.S. Treasury Bills, 5/28/15 3.80 -------------------------------------------------------------------------------- 9. Japanese Government CPI Linked Bond, 0.1%, 9/10/23 2.39 -------------------------------------------------------------------------------- 10. Spain Government Bond, 5.15%, 10/31/44 2.31 -------------------------------------------------------------------------------- * This list excludes temporary cash investments and derivative instruments. The portfolio is actively managed, and current holdings may be different. The holdings listed should not be considered recommendations to buy or sell any security listed. 10 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Prices and Distributions | 2/28/15 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 2/28/15 8/31/14 -------------------------------------------------------------------------------- A $9.68 $9.88 -------------------------------------------------------------------------------- C $9.67 $9.84 -------------------------------------------------------------------------------- Y $9.68 $9.90 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 2/28/15 12/31/14* -------------------------------------------------------------------------------- K $9.68 $9.64 -------------------------------------------------------------------------------- Distributions per Share: 9/1/14-2/28/15 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.0877 $ -- $ -- -------------------------------------------------------------------------------- C $0.0193 $ -- $ -- -------------------------------------------------------------------------------- K $ -- $ -- $ -- -------------------------------------------------------------------------------- Y $0.1125 $ -- $ -- -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index is an unmanaged market index of U.S. Treasury securities maturing in 90 days, that assumes reinvestment of all income. Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. It is not possible to invest directly in an index. The index defined here pertains to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts appearing on pages 12-15. * Share class commenced operations on December 31, 2014. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 11 Performance Update | 2/28/15 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer Absolute Return Bond Fund at public offering price during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Net Public BofA ML Asset Offering 3-Month Value Price U.S. Treasury Period (NAV) (POP) Bill Index -------------------------------------------------------------------------------- Life-of-Class (1/30/14) -2.15% -6.23% 0.03% -------------------------------------------------------------------------------- 1 Year -1.63 -6.08 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.61% 1.15% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Absolute BofA ML 3-month US Return Bond Fund Treasury Bill Index 1/31/2014 $9,550 $10,000 2/28/2014 $9,484 $10,001 2/28/2015 $9,329 $10,004 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. POP returns reflect deduction of maximum 4.50% sales charge. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class A shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 12 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Performance Update | 2/28/15 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C shares of Pioneer Absolute Return Bond Fund during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- BofA ML 3-Month If If U.S. Treasury Period Held Redeemed Bill Index -------------------------------------------------------------------------------- Life-of-Class (1/30/14) -2.88% -2.88% 0.03% -------------------------------------------------------------------------------- 1 Year -2.42 -2.42 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 3.35% 1.90% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Absolute BofA ML 3-month US Return Bond Fund Treasury Bill Index 1/31/2014 $10,000 $10,000 2/28/2014 $9,930 $10,001 2/28/2015 $9,689 $10,004 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class C shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 13 Performance Update | 2/28/15 Class K Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class K shares of Pioneer Absolute Return Bond Fund during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Net BofA ML Asset 3-Month Value U.S. Treasury Period (NAV) Bill Index -------------------------------------------------------------------------------- Life-of-Class (1/30/14) -2.15% 0.03% -------------------------------------------------------------------------------- 1 Year -1.63 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 2.35% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Absolute BofA ML 3-month US Return Bond Fund Treasury Bill Index 1/31/2014 $10,000 $10,000 2/28/2014 $9,930 $10,001 2/28/2015 $9,768 $10,004 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. The performance shown for Class K shares for the period prior to the commencement of operations of Class K shares on December 31, 2014, is the net asset value performance of the Fund's Class A shares, which has not been restated to reflect any differences in expenses, including Rule 12b-1 fees applicable to Class A shares. Since fees for Class A shares generally are higher than those of Class K shares, the performance of Class K shares prior to their inception would have been higher than the performance shown. For the period beginning December 31, 2014, the actual performance of Class K shares is reflected. Class K shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 14 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Performance Update | 2/28/15 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer Absolute Return Bond Fund during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Net BofA ML Asset 3-Month Value U.S. Treasury Period (NAV) Bill Index -------------------------------------------------------------------------------- Life-of-Class (1/30/14) -1.92% 0.03% -------------------------------------------------------------------------------- 1 Year -1.48 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.36% 0.75% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer Absolute BofA ML 3-month US Return Bond Fund Treasury Bill Index 1/31/2014 $5,000,000 $5,000,000 2/28/2014 $4,970,000 $5,000,029 2/28/2015 $4,896,425 $5,001,567 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class Y shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 15 Comparing Ongoing Fund Expenses As a shareowner in the Fund, you incur two types of costs: (1) ongoing costs, including management fees, distribution and/or service (12b-1) fees, and other Fund expenses; and (2) transaction costs, including sales charges (loads) on purchase payments. This example is intended to help you understand your ongoing expenses (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 at the beginning of the Fund's latest six-month period and held throughout the six months. Using the Tables -------------------------------------------------------------------------------- Actual Expenses The first table below provides information about actual account values and actual expenses. You may use the information in this table, together with the amount you invested, to estimate the expenses that you paid over the period as follows: (1) Divide your account value by $1,000 Example: an $8,600 account value (divided by) $1,000 = 8.6 (2) Multiply the result in (1) above by the corresponding share class's number in the third row under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. Expenses Paid on a $1,000 Investment in Pioneer Absolute Return Bond Fund Based on actual returns from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C K Y -------------------------------------------------------------------------------- Beginning Account Value on 9/1/14* $1,000.00 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) on 2/28/15 $ 988.70 $ 984,70 $1,004.10 $ 989.20 -------------------------------------------------------------------------------- Expenses Paid During Period** $ 5.03 $ 8.71 $ 1.24 $ 3.70 -------------------------------------------------------------------------------- * Period begins December 31, 2014 (commencement of operations) for Class K shares. ** Expenses are equal to the Fund's annualized net expense ratio of 1.02%, 1.77%, 0.75% and 0.75% for Class A, Class C, Class K and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 181/365 (60/365 for Class K shares) (to reflect the partial year period). 16 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer Absolute Return Bond Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C K Y -------------------------------------------------------------------------------- Beginning Account Value on 9/1/14* $1,000.00 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) on 2/28/15 $1,019.74 $1,016.02 $1,006.99 $1,021.08 -------------------------------------------------------------------------------- Expenses Paid During Period** $ 5.11 $ 8.85 $ 1.24 $ 3.76 -------------------------------------------------------------------------------- * Period begins December 31, 2014 (commencement of operations) for Class K shares. ** Expenses are equal to the Fund's annualized net expense ratio of 1.02%, 1.77%, 0.75% and 0.75% for Class A, Class C, Class K and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 181/365 (60/365 for Class K shares) (to reflect the partial year period). Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 17 Schedule of Investments | 2/28/15 (unaudited) -------------------------------------------------------------------------------------------- Principal Amount ($) Value -------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- 64.6% 1,200,000 U.S. Treasury Bills, 1/7/16 (b) $ 1,198,108 3,650,000 U.S. Treasury Bills, 11/12/15 (b) 3,647,091 1,000,000 U.S. Treasury Bills, 3/5/15 (b) 999,998 1,300,000 U.S. Treasury Bills, 4/2/15 (b) 1,299,971 700,000 U.S. Treasury Bills, 5/28/15 (b) 699,954 5,000,000 U.S. Treasury Bills, 7/23/15 (b) 4,998,957 ------------ $ 12,844,079 -------------------------------------------------------------------------------------------- TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS (Cost $12,843,017) $ 12,844,079 -------------------------------------------------------------------------------------------- FOREIGN GOVERNMENT BONDS -- 26.2% EURO 1,239,996 Deutsche Bundesrepublik Inflation Linked Bond, 0.1%, 4/15/23 $ 1,502,364 EURO 179,000 Ireland Government Bond, 2.4%, 5/15/30 232,201 EURO 220,000 Ireland Government Bond, 3.4%, 3/18/24 302,018 EURO 240,000 Ireland Government Bond, 3.9%, 3/20/23 336,414 EURO 948,972 Italy Buoni Poliennali Del Tesoro, 2.35%, 9/15/19 1,174,744 EURO 45,000 Italy Buoni Poliennali Del Tesoro, 3.25%, 9/1/46 60,528 EURO 250,000 Italy Buoni Poliennali Del Tesoro, 3.5%, 3/1/30 343,358 EURO 85,000 Italy Buoni Poliennali Del Tesoro, 4.75%, 9/1/44 144,911 EURO 44,000 Italy Buoni Poliennali Del Tesoro, 5.0%, 9/1/40 74,781 JPY 3,590,440 Japanese Government CPI Linked Bond, 0.1%, 3/10/24 31,914 JPY 49,536,000 Japanese Government CPI Linked Bond, 0.1%, 9/10/23 440,713 EURO 80,000 Spain Government Bond, 4.7%, 7/30/41 133,989 EURO 235,000 Spain Government Bond, 5.15%, 10/31/44 424,775 ------------ $ 5,202,710 -------------------------------------------------------------------------------------------- TOTAL FOREIGN GOVERNMENT BONDS (Cost $5,318,934) $ 5,202,710 -------------------------------------------------------------------------------------------- PURCHASED PUT OPTIONS -- 0.2% 150,000 Put EUR/Call USD @ 1.34, 6/25/15 $ 32,798 140,000 Put EUR/Call USD Knock-out (Down-and-out) @ (1.08) 1.13, 3/3/15 1,539 -------------------------------------------------------------------------------------------- TOTAL PURCHASED PUT OPTIONS (Premiums paid $4,455) $ 34,337 -------------------------------------------------------------------------------------------- PURCHASED CALL OPTIONS -- 0.4% 170,000 Call EUR/Put USD @ 1.3615, 6/15/23 $ -- 170,000 Call USD/Put CAD Knock-out (Up-and-out) @ (1.2775) 1.246 11/3/15 514 200,000 Call USD/Put CAD Knock-out (Up-and-out) @ (1.289) 1.252, 2/3/15 437 230,000 Call USD/Put CNY @ 6.4, 10/25/16 7,887 250,000 Call USD/Put CNY @ 6.4, 10/25/16 8,572 250,000 Call USD/Put CNY @ 6.4, 10/25/16 8,572 150,000 Call USD/Put JPY @ 107, 5/12/15 15,806 The accompanying notes are an integral part of these financial statements. 18 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------- Principal Amount ($) Value -------------------------------------------------------------------------------------------- PURCHASED CALL OPTIONS -- (continued) 190,000 Call USD/Put KRW Knock-out (Up-and-out) @ (1150) 1110 3/31/15 $ 688 210,000 Call USD/Put KRW Knock-out (Up-and-out) @ (1190) 1120 6/4/15 830 200,000 Call USD/Put KRW Knock-out (Up-and-out) @ (1200) 1120 3/19/15 579 200,000 Call USD/Put SGD @ 1.25, 6/25/15 16,956 200,000 Call USD/Put TWD @ 30, 6/26/15 9,281 -------------------------------------------------------------------------------------------- TOTAL PURCHASED CALL OPTIONS (Premiums paid $29,131) $ 70,122 -------------------------------------------------------------------------------------------- PURCHASED SWAPTIONS -- 0.6% 2,180,000 Fixed 9/15/20 2.5% (SWP 9/11/15 Right to pay fixed) $ 7,551 2,180,000 Fixed 9/15/20 2.5% (SWP 9/11/15 Right to receive fixed) 71,471 500,000 Fixed 6/27/26 USD 3.42% (SWP 6/23/16 Right to pay fixed) 4,697 500,000 Fixed 6/27/26 USD 3.42% (SWP 6/23/16 Right to receive fixed) 48,548 -------------------------------------------------------------------------------------------- TOTAL PURCHASED SWAPTIONS (Premiums paid $107,544) $ 132,267 -------------------------------------------------------------------------------------------- INTEREST RATE SWAPTIONS -- 0.6% 6,000,000 Fixed 6/3/35 1.62% (SWP 6/1/15 Right to pay fixed) $ 75 58,600,000 Fixed 6/3/35 JPY 1.62% (SWP 6/1/15 Right to pay fixed) 734 2,200,000 Fixed 11/11/17 1.65% (SWP 11/9/15 Right to pay fixed) 6,937 2,200,000 Fixed 11/11/17 1.65% (SWP 11/9/15 Right to receive fixed) 18,051 625,000 Fixed 2/15/27 0.97% (SWP 2/13/17 Right to pay fixed) 21,664 625,000 Fixed 2/15/27 0.97% (SWP 2/13/17 Right to receive fixed) 22,306 2,400,000 Fixed 11/16/25 1.21% (SWP 11/12/15 Right to pay fixed) 16,977 2,400,000 Fixed 11/16/25 2.21% (SWP 11/12/15 Right to pay fixed) 1,448 2,250,000 Fixed 2/25/18 1.7% (SWP 2/23/16 Right to pay fixed) 12,490 2,250,000 Fixed 2/25/18 1.7% (SWP 2/23/16 Right to receive fixed) 17,296 -------------------------------------------------------------------------------------------- TOTAL INTEREST RATE SWAPTIONS (Premiums paid $190,228) $ 117,978 -------------------------------------------------------------------------------------------- TOTAL INVESTMENT IN SECURITIES -- 92.6% (Cost $18,493,309) (a) $ 18,401,493 -------------------------------------------------------------------------------------------- WRITTEN INTEREST RATE SWAPTIONS -- (0.4)% (4,800,000) Fixed 16 Nov 2025 1.71% (SWP 12 Nov 2015 Right to pay fixed) $ (10,130) (900,000) Fixed 31 Jan 2045 1.54% (SWP 29 Jan 2035 Right to receive fixed) (77,648) ------------ $ (87,778) -------------------------------------------------------------------------------------------- TOTAL WRITTEN INTEREST RATE SWAPTIONS (Premiums received $(119,986)) $ (87,778) -------------------------------------------------------------------------------------------- OTHER ASSETS & LIABILITIES -- 7.8% $ 1,560,906 -------------------------------------------------------------------------------------------- TOTAL NET ASSETS -- 100.0% $ 19,874,621 ============================================================================================ The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 19 Schedule of Investments | 2/28/15 (unaudited) (continued) (a) At February 28, 2015, the net unrealized depreciation on investments based on cost for federal income tax purposes of $18,493,309 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $ 260,822 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (352,638) --------- Net unrealized depreciation $ (91,816) ========= (b) Security issued with a zero coupon. Income is earned through accrection of discount. Principal amounts are denominated in U.S. Dollars unless otherwise noted: CAD Canadian Dollar CNY New Chinese Yuan EURO European Euro GBP British Pound Sterling JPY Japanese Yen KRW South Korean Won SGD Singapore Dollar TWD Taiwan Dollar Purchases and sales of securities (excluding temporary cash investments) for the six months ended February 28, 2015 aggregated $3,074,799 and $2,405,558, respectively. CREDIT DEFAULT SWAP AGREEMENTS -- BUY PROTECTION ----------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Expiration Paid Appreciation Principal ($)(1) Counterparty Entity/Index Coupon Date (Received) (Depreciation) ----------------------------------------------------------------------------------------------------------- EUR (300,000) Credit Suisse Alstom Plc 1.00% 3/20/20 $ (7,974) $ (850) International EUR (270,000) Credit Suisse B.A.T. International 1.00% 9/20/19 (9,461) (638) International Finance Plc EUR (250,000) Credit Suisse Bouygues SA 1.00% 12/20/19 (5,234) (3,666) International EUR (500,000) Credit Suisse Carrefour SA 1.00% 3/20/20 (14,357) (8,955) International EUR (250,000) Credit Suisse Carrefour SA 1.00% 3/20/19 (2,002) (6,396) International EUR (280,000) Credit Suisse Cie De 1.00% 9/20/19 (6,915) (1,513) International Saint-Gobain EUR (280,000) Credit Suisse Continental AG 1.00% 6/20/19 (7,251) (2,731) International EUR (280,000) Credit Suisse Fortum Oyj 1.00% 9/20/19 (8,782) 227 International The accompanying notes are an integral part of these financial statements. 20 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 CREDIT DEFAULT SWAP AGREEMENTS -- BUY PROTECTION (continued) ----------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Expiration Paid Appreciation Principal ($) Counterparty Entity/Index Coupon Date (Received) (Depreciation) ----------------------------------------------------------------------------------------------------------- (1,050,000) Deutsche Bank Markit CDX 1.00% 12/20/18 $ (18,211) $ (4,989) North America Investment Grade Index EUR (275,000) Goldman Sachs United 1.00% 12/20/19 (173) (2,887) International Utilities Plc EUR (650,000) Goldman Sachs Valeo SA 1.00% 3/20/20 (19,001) (2,761) International EUR (400,000) Goldman Sachs Valeo SA 1.00% 3/20/20 (11,430) (1,962) International EUR (270,000) Morgan Stanley Eni S.p.A. 1.00% 9/20/19 (8,630) 1,719 Capital Services LLC ----------------------------------------------------------------------------------------------------------- $(119,421) $(35,402) =========================================================================================================== CENTRALLY CLEARED CREDIT DEFAULT SWAP AGREEMENTS -- BUY PROTECTION ----------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Expiration Received Appreciation Principal ($) Counterparty Entity/Index Coupon Date (Paid) (Depreciation) ----------------------------------------------------------------------------------------------------------- EUR (2,425,000) Intercontinental Markit iTraxx 1.00% 12/20/19 $(57,983) $(12,588) Exchange Europe Index EUR (570,000) Intercontinental Markit iTraxx 1.00% 6/20/19 (38,471) 17,563 Exchange Europe Index ----------------------------------------------------------------------------------------------------------- $(96,454) $ 4,975 =========================================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 21 Schedule of Investments | 2/28/15 (unaudited) (continued) CREDIT DEFAULT SWAP AGREEMENTS -- SELL PROTECTION ---------------------------------------------------------------------------------------------------------------------- Net Notional Obligation Premiums Unrealized Principal Entity/ Credit Expiration Paid Appreciation ($)(1) Counterparty Index Coupon Rating(2) Date (Received) (Depreciation) ---------------------------------------------------------------------------------------------------------------------- EUR 320,000 Barclays Tesco Plc 1.00% BBB 9/20/19 $ 410 $ (5,341) Bank plc EUR 250,000 Credit Suisse Casino 1.00% BBB- 3/20/20 1,411 1,764 International Guichard Perrachon SA EUR 250,000 Credit Suisse Casino 1.00% BBB- 3/20/19 (3,293) 8,245 International Guichard Perrachon SA EUR 650,000 Barclays Bank EADS 1.00% A 3/20/20 18,574 2,581 Plc Finance BV EUR 400,000 Goldman Sachs Electricitie 1.00% A+ 3/20/20 10,731 2,015 International de France SA EUR 250,000 Credit Suisse Glencore 1.00% BBB 12/20/19 (7,505) 3,629 International Finance Europe SA EUR 270,000 Credit Suisse Imperial 1.00% BBB 9/20/19 4,493 3,253 International Tobacco Finance Plc EUR 280,000 Credit Suisse Vinci SA 1.00% A- 9/20/19 7,807 803 International EUR 250,000 Credit Suisse Vinci SA 1.00% A- 12/20/19 4,922 2,702 International EUR 250,000 Credit Suisse Volkswagen 1.00% A 3/20/20 5,903 2,936 International International Finance NV EUR 500,000 Credit Suisse Volkswagen 1.00% A 3/20/20 13,210 4,460 International International Finance NV EUR 280,000 Credit Suisse Volvo 1.00% BBB 6/20/19 (53) 5,744 International Treasury AB EUR 750,000 Morgan Stanley Markit iTraxx 1.00% CCC+ 12/20/18 10,304 11,474 International Europe Index Service EUR 250,000 Morgan Stanley BP Capital 1.00% A 12/20/19 5,981 (48) Capital Markets Services LLC EUR 275,000 Morgan Stanley BP Capital 1.00% A 12/20/19 5,250 1,276 Capital Markets Services LLC EUR 280,000 Morgan Stanley Experian 1.00% A- 9/20/19 10,780 (1,074) Capital Finance Plc Services LLC EUR 270,000 Morgan Stanley Repsol 1.00% BBB- 9/20/19 3,629 (77) Capital International Services LLC Finance BV ---------------------------------------------------------------------------------------------------------------------- $ 92,554 $44,342 ====================================================================================================================== (1) The notional amount is the maximum amount that a seller of credit protection would be obligated to pay upon occurrence of a credit event. (2) Based on Standard & Poor's rating of the issuer or weighted average of all the underlying securities of the index. NOTE: Principal amounts are denominated in U.S. Dollars unless otherwise noted: EUR Euro The accompanying notes are an integral part of these financial statements. 22 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 INFLATION RATE SWAP AGREEMENTS ----------------------------------------------------------------------------------------------------------------- Net Unrealized Notional Pay/ Annual Expiration Appreciation Principal ($) Counterparty Receive Index Fixed Rate Date (Depreciation) ----------------------------------------------------------------------------------------------------------------- 498,000 Credit Suisse International Pay USCPI 2.138% 3/3/19 $ 15,020 994,250 Credit Suisse International Pay USCPI 2.145% 2/7/19 28,278 EUR 320,000 Goldman Sachs Pay EUCPI 0.750% 3/3/20 (1,531) International EUR (140,000) Goldman Sachs Receive EUCPI 0.825% 12/5/19 (1,174) International EUR (600,000) Goldman Sachs Receive EUCPI 1.209% 2/5/25 (686) International EUR 600,000 Goldman Sachs Pay EUCPI 0.770% 2/5/20 198 International EUR (320,000) Goldman Sachs Receive EUCPI 1.200% 3/3/25 1,119 International EUR (367,500) Morgan Stanley Capital Receive EUCPI 1.238% 2/7/19 (14,754) Services LLC EUR (181,000) Morgan Stanley Capital Receive EUCPI 1.210% 3/3/19 (7,124) Services LLC EUR (575,000) Morgan Stanley Capital Pay EUCPI 0.525% 1/20/20 (6,903) Services LLC 480,000 Morgan Stanley Capital Pay USCPI 1.647% 2/20/20 (4,263) Services LLC EUR (310,000) Morgan Stanley Capital Receive EUCPI 0.728% 2/26/20 650 Services LLC 338,000 Morgan Stanley Capital Pay USCPI 1.705% 12/5/19 2,987 Services LLC EUR (878,000) Morgan Stanley Capital Receive EUCPI 0.550% 1/20/20 9,296 Services LLC EUR (575,000) Morgan Stanley Capital Receive EUCPI 1.030% 1/20/25 10,107 Services LLC ----------------------------------------------------------------------------------------------------------------- $ 31,220 ================================================================================================================= EUCPI Eurostat Eurozone HICP Ex Tobacco Unrevised Series NSA. USCPI United States Consumer Price Index. NOTE : Principal amounts are denominated in U.S. Dollars unless otherwise noted: EUR Euro The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 23 Schedule of Investments | 2/28/15 (unaudited) (continued) INTEREST RATE SWAP AGREEMENTS -------------------------------------------------------------------------------------------------------------------------- Annual Premiums Net Unrealized Notional Pay/ Floating Fixed Expiration Paid Appreciation Principal ($) Counterparty Receive Rate Rate Date (Received) (Depreciation) -------------------------------------------------------------------------------------------------------------------------- AUD (545,000) Morgan Stanley Receive LIBOR AUD 3.604% 10/16/24 $ -- $ (31,078) Capital Services LLC 3 Month AUD (588,500) Morgan Stanley Receive LIBOR AUD 3.510% 1/13/25 -- (4,304) Capital Services LLC 3 Month AUD (588,500) Morgan Stanley Receive LIBOR AUD 3.285% 1/13/25 -- (77) Capital Services LLC 3 Month AUD (618,000) Morgan Stanley Receive LIBOR AUD 3.150% 2/5/25 -- 2,727 Capital Services LLC 3 Month AUD 1,814,000 Morgan Stanley Pay LIBOR AUD 2.230% 2/6/18 -- 3,876 Capital Services LLC 3 Month CNY 1,400,000 Goldman Sachs Pay China Fixing 2.860% 2/4/20 -- (3,289) International Repo Rates 7 day CNY 1,400,000 Goldman Sachs Pay China Fixing 2.910% 2/3/20 -- (2,782) International Repo Rates 7 day CNY 1,400,000 Morgan Stanley Pay China Fixing 2.940% 2/9/20 -- (2,391) Capital Services LLC Repo Rates 7 day CNY 1,400,000 Morgan Stanley Pay China Fixing 3.080% 2/26/20 -- (746) Capital Services LLC Repo Rates 7 day EUR (1,930,000) Deutsche Bank Receive EURIBOR 2.703% 7/9/23 -- (198,277) 6 Month EUR 260,000 Deutsche Bank Receive EURIBOR 2.558% 2/11/54 -- (120,216) 6 Month EUR 900,000 Deutsche Bank Pay EURIBOR 1.500% 1/31/45 39,517 (41,171) 6 Month EUR (970,000) Deutsche Bank Receive EURIBOR 1.538% 12/15/64 -- (28,808) 6 Month EUR (80,000) Deutsche Bank Receive EURIBOR 1.824% 11/11/44 -- (14,359) 6 Month EUR 400,000 Deutsche Bank Pay EURIBOR 1.320% 2/16/55 -- (2,485) 6 Month EUR (125,000) Deutsche Bank Receive EURIBOR 0.945% 2/15/27 -- 185 6 Month EUR 300,000 Deutsche Bank Pay EURIBOR 0.299% 2/26/20 -- 596 6 Month EUR 140,000 Deutsche Bank Pay EURIBOR 0.411% 12/5/19 -- 1,279 6 Month EUR 1,110,000 Deutsche Bank Pay EONIA 1 Day 0.037% 2/23/20 -- 1,468 Interbank Rate EUR (510,000) Deutsche Bank Receive EURIBOR 0.980% 2/16/65 -- 2,838 6 Month The accompanying notes are an integral part of these financial statements. 24 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 INTEREST RATE SWAP AGREEMENTS (continued) -------------------------------------------------------------------------------------------------------------------------- Annual Premiums Net Unrealized Notional Pay/ Floating Fixed Expiration Paid Appreciation Principal ($) Counterparty Receive Rate Rate Date (Received) (Depreciation) -------------------------------------------------------------------------------------------------------------------------- EUR 390,000 Deutsche Bank Pay EONIA 1 Day 0.765% 2/23/30 $ -- $ 2,934 Interbank Rate EUR 184,000 Deutsche Bank Pay EURIBOR 0.948% 3/3/19 -- 8,442 6 Month EUR 372,500 Deutsche Bank Pay EURIBOR 1.004% 2/7/19 -- 13,539 6 Month EUR 660,000 Deutsche Bank Pay EURIBOR 1.800% 12/15/54 -- 18,587 6 Month EUR (900,000) Deutsche Bank Receive EURIBOR 0.450% 1/31/45 39,517 40,865 6 Month EUR 630,000 Deutsche Bank Pay EURIBOR 1.900% 2/11/24 -- 81,269 6 Month GBP (717,000) Deutsche Bank Receive LIBOR GBP 3.154% 9/23/24 -- (44,491) 6 Month GBP (750,000) Deutsche Bank Receive LIBOR GBP 2.800% 11/14/24 -- (27,785) 6 Month GBP (1,100,000) Deutsche Bank Receive LIBOR GBP 1.380% 2/5/19 -- 10,907 6 Month GBP 260,000 Deutsche Bank Pay LIBOR GBP 2.893% 11/14/44 -- 19,117 6 Month GBP (1,100,000) Deutsche Bank Receive LIBOR GBP 1.425% 2/8/19 -- 8,822 6 Month GBP 376,000 Deutsche Bank Pay LIBOR GBP 3.130% 9/24/44 -- 40,568 6 Month INR 33,700,000 Barclays Bank Plc Pay Mumbai 6.965% 2/12/17 -- (3,235) Interbank Offer Rate INR (14,400,000) Barclays Bank Plc Receive Mumbai 6.560% 2/12/20 -- 4,237 Interbank Offer Rate INR 33,700,000 Goldman Sachs Pay Mumbai 6.825% 2/3/17 -- (4,791) International Interbank Offer Rate INR (14,400,000) Goldman Sachs Receive Mumbai 6.430% 2/3/20 -- 5,563 International Interbank Offer Rate INR 40,600,000 Morgan Stanley Pay Mumbai 6.940% 2/26/17 -- (3,899) Capital Services LLC Interbank Offer Rate INR 33,700,000 Morgan Stanley Pay Mumbai 6.930% 2/4/17 -- (3,717) Capital Services LLC Interbank Offer Rate INR (14,400,000) Morgan Stanley Receive Mumbai 6.540% 2/4/20 -- 4,484 Capital Services LLC Interbank Offer Rate The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 25 Schedule of Investments | 2/28/15 (unaudited) (continued) INTEREST RATE SWAP AGREEMENTS (continued) ---------------------------------------------------------------------------------------------------------------------------- Annual Premiums Net Unrealized Notional Pay/ Floating Fixed Expiration Paid Appreciation Principal ($) Counterparty Receive Rate Rate Date (Received) (Depreciation) ---------------------------------------------------------------------------------------------------------------------------- INR (17,300,000) Morgan Stanley Receive Mumbai 6.560% 2/26/20 $ -- $ 4,966 Capital Services LLC Interbank Offer Rate JPY 49,900,000 Deutsche Bank Receive LIBOR JPY 0.623% 10/10/24 -- (6,061) 6 Month JPY (137,000,000) Deutsche Bank Receive LIBOR JPY 0.328% 2/4/22 -- (566) 6 Month JPY 9,100,000 Deutsche Bank Pay LIBOR JPY 1.376% 2/12/45 -- (233) 6 Month JPY (65,600,000) Deutsche Bank Receive LIBOR JPY 2.010% 2/17/45 -- 5 6 Month JPY 9,100,000 Deutsche Bank Pay LIBOR JPY 1.395% 2/6/45 -- 157 6 Month JPY 6,000,000 Deutsche Bank Pay LIBOR JPY 1.385% 3/2/45 -- 169 6 Month JPY 10,000,000 Deutsche Bank Pay LIBOR JPY 1.419% 2/19/45 -- 632 6 Month JPY (65,600,000) Deutsche Bank Receive LIBOR JPY 1.993% 2/17/45 -- 665 6 Month JPY 54,700,000 Deutsche Bank Pay LIBOR JPY 1.906% 2/17/35 -- 1,207 6 Month JPY 54,700,000 Deutsche Bank Pay LIBOR JPY 1.920% 2/17/35 -- 1,436 6 Month KRW 768,000,000 Goldman Sachs Pay South Korea 2.100% 2/3/25 -- (7,098) International Overnight Interbank Rate NOK 2,830,000 Deutsche Bank Pay Norwegian 1.760% 10/21/17 -- 4,763 Interbank Offer Rate 6 Month NOK 2,826,000 Deutsche Bank Pay Norwegian 1.790% 10/23/17 -- 4,903 Interbank Offer Rate 6 Month NOK 3,000,000 Morgan Stanley Pay Norwegian 1.630% 11/12/17 -- 3,968 Capital Services LLC Interbank Offer Rate 6 Month NOK 2,826,000 Morgan Stanley Pay Norwegian 1.765% 10/28/17 -- 4,720 Capital Services LLC Interbank Offer Rate 6 Month NZD (1,350,000) Morgan Stanley Receive NZD Bank 4.020% 11/3/16 -- (4,345) Capital Services LLC Bill 3 Month NZD 702,000 Morgan Stanley Pay NZD Bank 4.050% 1/13/25 -- 3,377 Capital Services LLC Bill 3 Month NZD 711,000 Morgan Stanley Pay NZD Bank 3.760% 2/7/25 -- (2,307) Capital Services LLC Bill 3 Month The accompanying notes are an integral part of these financial statements. 26 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 INTEREST RATE SWAP AGREEMENTS (continued) -------------------------------------------------------------------------------------------------------------------------- Annual Premiums Net Unrealized Notional Pay/ Floating Fixed Expiration Paid Appreciation Principal ($) Counterparty Receive Rate Rate Date (Received) (Depreciation) -------------------------------------------------------------------------------------------------------------------------- NZD 702,000 Morgan Stanley Pay NZD Bank 3.850% 1/13/25 $ -- $ (637) Capital Services LLC Bill 3 Month SEK 2,900,000 Barclays Bank Plc Pay LIBOR SEK 0.100% 2/12/17 -- (287) 3 Month SEK 2,610,000 Barclays Bank Plc Pay LIBOR SEK 0.403% 10/24/16 -- 1,879 3 Month SEK 3,310,000 Barclays Bank Plc Pay LIBOR SEK 0.390% 10/28/16 -- 2,318 3 Month SEK 4,750,000 Barclays Bank Plc Pay LIBOR SEK 0.615% 8/26/16 -- 6,658 3 Month SEK 5,040,000 Barclays Bank Plc Pay LIBOR SEK 0.550% 9/18/16 -- 5,602 3 Month SEK 4,800,000 Barclays Bank Plc Pay LIBOR SEK 0.628% 8/20/16 -- 6,949 3 Month SEK 4,800,000 Morgan Stanley Pay LIBOR SEK 0.628% 8/13/16 -- 6,815 Capital Services LLC 3 Month SEK 4,800,000 Morgan Stanley Pay LIBOR SEK 0.630% 8/14/16 -- 6,932 Capital Services LLC 3 Month (410,000) Deutsche Bank Receive LIBOR USD 0.640% 10/28/16 -- (175) 3 Month (1,690,000) Deutsche Bank Receive LIBOR USD 3.044% 11/28/22 -- (31,404) 3 Month 3,150,000 Deutsche Bank Pay LIBOR USD 1.810% 1/23/19 -- (14,126) 3 Month 1,800,000 Deutsche Bank Pay LIBOR USD 1.593% 2/10/19 -- (11,794) 3 Month (200,000) Deutsche Bank Receive LIBOR USD 2.870% 6/27/26 -- (7,832) 3 Month (1,015,000) Morgan Stanley Receive LIBOR USD 1.599% 2/7/19 -- (6,632) Capital Services 3 Month LLC (100,000) Deutsche Bank Receive LIBOR USD 3.130% 6/27/16 -- (6,240) 3 Month (508,000) Credit Suisse Receive LIBOR USD 1.576% 3/3/19 -- (5,938) International 3 Month (350,000) Deutsche Bank Receive LIBOR USD 1.753% 12/5/19 -- (3,663) 3 Month (1,400,000) Deutsche Bank Receive LIBOR USD 1.930% 9/15/20 -- (3,234) 3 Month (2,860,000) Deutsche Bank Receive LIBOR USD 0.893% 12/31/16 -- (2,854) 3 Month (630,000) Deutsche Bank Receive LIBOR USD 0.775% 9/18/16 -- (2,848) 3 Month The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 27 Schedule of Investments | 2/28/15 (unaudited) (continued) INTEREST RATE SWAP AGREEMENTS (continued) -------------------------------------------------------------------------------------------------------------------- Annual Premiums Net Unrealized Notional Pay/ Floating Fixed Expiration Paid Appreciation Principal ($) Counterparty Receive Rate Rate Date (Received) (Depreciation) -------------------------------------------------------------------------------------------------------------------- (500,000) Deutsche Bank Receive LIBOR USD 1.717% 2/26/20 $ -- $ (1,896) 3 Month (340,000) Deutsche Bank Receive LIBOR USD 1.521% 11/12/17 -- (848) 3 Month (371,500) Deutsche Bank Receive LIBOR USD 1.427% 10/28/17 -- (459) 3 Month (625,000) Deutsche Bank Pay LIBOR USD 0.679% 8/13/16 -- (443) 3 Month (619,000) Deutsche Bank Receive LIBOR USD 0.700% 8/26/16 -- (382) 3 Month (625,000) Deutsche Bank Receive LIBOR USD 0.673% 8/14/16 -- (362) 3 Month (372,000) Deutsche Bank Receive LIBOR USD 1.377% 10/21/17 -- (195) 3 Month (371,500) Deutsche Bank Receive LIBOR USD 1.370% 10/23/17 -- (123) 3 Month (176,000) Deutsche Bank Receive LIBOR USD 0.635% 10/24/16 -- (81) 3 Month (625,000) Deutsche Bank Receive LIBOR USD 0.648% 8/20/16 -- 25 3 Month 180,000 Deutsche Bank Pay LIBOR USD 1.700% 2/25/18 -- 387 3 Month (887,500) Deutsche Bank Receive LIBOR USD 1.493% 1/27/20 -- 4,711 3 Month (1,630,000) Deutsche Bank Receive LIBOR USD 2.348% 1/23/23 -- 11,404 3 Month 3,130,000 Deutsche Bank Pay LIBOR USD 2.252% 11/28/18 -- 16,144 3 Month (2,220,000) Deutsche Bank Receive LIBOR USD 1.445% 6/6/20 -- 18,436 3 Month 1,380,000 Deutsche Bank Pay LIBOR USD 3.985% 7/9/23 -- 89,081 3 Month -------------------------------------------------------------------------------------------------------------------- $ 79,034 $ (180,352) ==================================================================================================================== The accompanying notes are an integral part of these financial statements. 28 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Principal amounts are denominated in U.S. Dollars unless otherwise noted: AUD Australian Dollar CNY New Chinese Yuan EUR Euro GBP British Pound Sterling HKD Hong Kong Dollar INR Indian Rupee JPY Japanese Yen KRW South Korean Won NOK Norwegian Krone NZD New Zealand Dollar SEK Swedish Krone Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below. Level 1 - quoted prices in active markets for identical securities. Level 2 - other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.) See Notes to Financial Statements -- Note 1A. Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments) See Notes to Financial Statements -- Note 1A. Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued using fair value methods (other than prices supplied by independent pricing services or broker-dealers) as Level 3. See Notes to Financial Statements -- Note 1A. The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 29 Schedule of Investments | 2/28/15 (unaudited) (continued) The following is a summary of the inputs used as of February 28, 2015, in valuing the Fund's assets: ------------------------------------------------------------------------------------------------ Level 1 Level 2 Level 3 Total ------------------------------------------------------------------------------------------------ U.S. Government and Agency Obligations $ -- $12,844,079 $ -- $12,844,079 Foreign Government Bonds -- 5,202,710 -- 5,202,710 Purchased Put Options -- 34,337 -- 34,337 Purchased Call Options -- 70,122 -- 70,122 Purchased Swaptions -- 132,267 -- 132,267 Interest Rate Swaptions -- 117,978 -- 117,978 ------------------------------------------------------------------------------------------------ Total $ -- $18,401,493 $ -- $18,401,493 ================================================================================================ Other Financial Instruments Net unrealized depreciation on futures contracts $(133,732) $ -- $ -- $ (133,732) Net unrealized appreciation on forward foreign currency contracts -- 250,192 -- 250,192 Net unrealized depreciation on forward foreign currency contracts -- (84,522) -- (84,522) Net unrealized appreciation on Credit Default swap contracts -- 13,915 -- 13,915 Net unrealized appreciation on inflation swaps -- 31,220 -- 31,220 Net unrealized appreciation on interest rate swaps -- (180,352) -- (180,352) Net unrealized appreciation on written interest rate swaption -- 32,208 -- 32,208 ------------------------------------------------------------------------------------------------ Total Other Financial Instruments $(133,732) $ 62,661 $ -- $ (71,071) ================================================================================================ During the six months ended February 28, 2015, there were no transters between Levels 1, 2 and 3. The following is a summary of the fair valuation of certain Portfolio's assets and liabilities as of February 28, 2015. ------------------------------------------------------------------------------------------------ Level 1 Level 2 Level 3 Total ------------------------------------------------------------------------------------------------ Assets: Foreign currencies, at value $ -- 116,225 -- 116,225 Futures collateral 305,499 -- -- 305,499 Swap collateral -- 557,997 -- 557,997 Variation margin for swap contracts -- 10,592 -- 10,592 Liabilities: Variation margin for futures contracts 14,325 -- -- 14,325 ------------------------------------------------------------------------------------------------ Total: $319,824 $684,814 $ -- $1,004,638 ================================================================================================ The accompanying notes are an integral part of these financial statements. 30 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Statement of Assets and Liabilities | 2/28/15 (unaudited) ASSETS: Investment in securities, at value (cost $18,493,309) $18,401,493 Cash 520,163 Foreign currencies (cost $122,485) 116,225 Futures collateral 305,499 Swap collateral 557,997 Receivables -- Investment securities sold 1,066,936 Interest 49,106 Swap contracts receivable 31,630 Futures receivable 16,475 Due from Pioneer Investment Management, Inc. 31,295 Variation margin for futures contracts 25,902 Variation margin for swap contracts 97,816 Net unrealized appreciation on forward foreign currency contracts 250,192 Other assets 53,903 ---------------------------------------------------------------------------------------- Total assets $21,524,632 ======================================================================================== LIABILITIES: Payables -- Investment securities purchased $ 1,068,985 Trustee fees 937 Swap contracts, premiums received 44,287 Written options and written swaptions (premiums received $119,986) 87,778 Net unrealized depreciation on forward foreign currency contracts 84,522 Net unrealized depreciation on swap contracts 135,217 Net unrealized depreciation on futures contracts 133,732 Due to affiliates 11,007 Accrued expenses 83,546 ---------------------------------------------------------------------------------------- Total liabilities $ 1,650,011 ======================================================================================== NET ASSETS: Paid-in capital $20,518,041 Accumulated net investment loss (354,900) Accumulated net realized loss on investments, futures contracts, swap contracts, written options and foreign currency transactions (165,113) Net unrealized depreciation on investments (91,816) Net unrealized depreciation on futures contracts (133,732) Net unrealized depreciation on swap contracts (135,217) Net unrealized appreciation on written options and written swaptions 32,208 Net unrealized appreciation on forward foreign currency contracts and other assets and liabilities denominated in foreign currencies 205,150 ---------------------------------------------------------------------------------------- Total net assets $19,874,621 ======================================================================================== NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $6,496,843/671,363 shares) $ 9.68 Class C (based on $6,908,751/714,655 shares) $ 9.67 Class K (based on $10,039/1,037 shares) $ 9.68 Class Y (based on $6,458,988/667,256 shares) $ 9.68 MAXIMUM OFFERING PRICE: Class A ($9.68 (divided by) 95.5%) $ 10.14 ======================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 31 Statement of Operations (unaudited) For the six months ended 2/28/15 INVESTMENT INCOME: Interest $ 30,538 -------------------------------------------------------------------------------------------- Total investment income $ 30,538 -------------------------------------------------------------------------------------------- EXPENSES: Management fees $ 59,159 Distribution fees Class A 8,115 Class C 33,780 Transfer agent fees Class A 146 Class C 133 Class Y 127 Shareholder communication expense 584 Administrative reimbursements 10,355 Custodian fees 38,812 Registration fees 33,894 Professional fees 38,536 Printing expense 12,287 Fees and expenses of nonaffiliated Trustees 2,790 Pricing fees 37,252 Miscellaneous 11,212 -------------------------------------------------------------------------------------------- Total expenses $ 287,182 Less fees waived and expenses reimbursed by Pioneer Investment Management, Inc. (170,029) -------------------------------------------------------------------------------------------- Net expenses $ 117,153 -------------------------------------------------------------------------------------------- Net investment loss $ (86,615) -------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, SWAP CONTRACTS, WRITTEN OPTIONS, WRITTEN SWAPTIONS, FUTURES CONTRACTS AND FOREIGN CURRENCY TRANSACTIONS Net realized gain (loss) on: Investments $(135,456) Swap contracts (294,470) Futures contracts (292,537) Written options and written swaptions 96,698 Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies 895,275 $ 269,510 -------------------------------------------------------------------------------------------- Change in net unrealized appreciation (depreciation) on: Investments $(222,419) Swap contracts (109,884) Futures contracts 17,311 Written options and written swaptions (63,270) Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (64,792) $(443,054) -------------------------------------------------------------------------------------------- Net loss on investments, swap contracts, written options, written swaptions, futures contracts and foreign currency transactions $(173,544) -------------------------------------------------------------------------------------------- Net decrease in net assets resulting from operations $(260,159) ============================================================================================ The accompanying notes are an integral part of these financial statements. 32 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Statements of Changes in Net Assets ---------------------------------------------------------------------------------------------- Six Months Ended 2/28/15 1/30/14 (a) (unaudited) to 8/31/14 ---------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment loss $ (86,615) $ (51,724) Net realized gain (loss) on investments, swap contracts, futures contracts, written options, written swaptions and foreign currency transactions 269,510 (524,241) Change in net unrealized appreciation (depreciation) on investments, swap contracts, futures contracts, written options, written swaptions and foreign currency transactions (443,054) 319,647 ---------------------------------------------------------------------------------------------- Net decrease in net assets resulting from operations $ (260,159) $ (256,318) ---------------------------------------------------------------------------------------------- DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.09 and $0.00 per share, respectively) $ (58,842) $ -- Class C ($0.02 and $0.00 per share, respectively) (13,546) -- Class K* ($0.00 and $0.00 per share, respectively) -- -- Class Y ($0.11 and $0.00 per share, respectively) (75,000) -- ---------------------------------------------------------------------------------------------- Total distributions to shareowners $ (147,388) $ -- ---------------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS:(b) Net proceeds from sale of shares $ 560,682 $20,044,447 Reinvestment of distributions 1,055 -- Cost of shares repurchased (66,237) (1,461) ---------------------------------------------------------------------------------------------- Net increase in net assets resulting from Fund share transactions $ 495,500 $20,042,986 ---------------------------------------------------------------------------------------------- Net increase in net assets $ 87,953 $19,786,668 NET ASSETS: Beginning of period 19,786,668 -- ---------------------------------------------------------------------------------------------- End of period $19,874,621 $19,786,668 ---------------------------------------------------------------------------------------------- Accumulated net investment loss $ (354,900) $ (120,897) ============================================================================================== (a) Class A, Class C and Class Y shares commenced operations on January 30, 2014. (b) At February 28, 2015 PIM owned 99.4% of the value of the outstanding shares of Pioneer Absolute Return Bond Fund. * Class K shares commenced operations on December 31, 2014. The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 33 Statements of Changes in Net Assets (continued) ------------------------------------------------------------------------------------------- '15 Shares '15 Amount (unaudited) (unaudited) '14 Shares '14 Amount ------------------------------------------------------------------------------------------- Class A* Shares sold 2,736 $ 33,089 668,740 $6,687,114 Reinvestment of distributions 39 375 -- -- Less shares repurchased (5) (46) (147) (1,461) ------------------------------------------------------------------------------------------- Net increase 2,770 $ 33,418 668,593 $6,685,653 =========================================================================================== Class C* Shares sold 52,239 $511,893 666,667 $6,666,667 Reinvestment of distributions 70 680 -- -- Less shares repurchased (4,321) (42,070) -- -- ------------------------------------------------------------------------------------------- Net increase 47,988 $470,503 666,667 $6,666,667 =========================================================================================== Class K** Shares sold 1,037 $ 10,000 -- $ -- Reinvestment of distributions -- -- -- -- Less shares repurchased -- -- -- -- ------------------------------------------------------------------------------------------- Net increase 1,037 $ 10,000 -- $ -- =========================================================================================== Class Y* Shares sold 589 $ 5,700 669,096 $6,690,666 Reinvestment of distributions -- -- -- -- Less shares repurchased (2,429) (24,121) -- -- ------------------------------------------------------------------------------------------- Net increase (decrease) (1,840) $(18,421) 669,096 $6,690,666 =========================================================================================== * Class A, Class C and Class Y shares commenced operations on January 30, 2014. ** Class K shares commenced operations on December 31, 2014. The accompanying notes are an integral part of these financial statements. 34 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Financial Highlights --------------------------------------------------------------------------------------------- Six Months Ended 2/28/15 1/30/14 (unaudited) to 8/31/14 --------------------------------------------------------------------------------------------- Class A Net asset value, beginning of period $ 9.88 $ 10.00 --------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ (0.03) $ (0.02) Net realized and unrealized gain (loss) on investments (0.08) (0.10) --------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (0.11) $ (0.12) --------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.09) $ -- --------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.20) $ (0.12) --------------------------------------------------------------------------------------------- Net asset value, end of period $ 9.68 $ 9.88 ============================================================================================= Total return* (1.13)% (1.20)%*** Ratio of net expenses to average net assets 1.02%** 1.01%** Ratio of net investment income (loss) to average net assets (0.71)%** (0.29)%** Portfolio turnover rate 108%** 62%** Net assets, end of period (in thousands) $ 6,497 $ 6,606 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 2.74%** 2.61%** Net investment income (loss) to average net assets (2.43)%** (1.89)%** ============================================================================================= * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not Annualized. The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 35 Financial Highlights (continued) --------------------------------------------------------------------------------------- Six Months Ended 2/28/15 1/30/14 (unaudited) to 8/31/14 --------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 9.84 $ 10.00 --------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ (0.06) $ (0.06) Net realized and unrealized gain (loss) on investments (0.09) (0.10) --------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (0.15) $ (0.16) --------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.02) $ -- --------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.17) $ (0.16) --------------------------------------------------------------------------------------- Net asset value, end of period $ 9.67 $ 9.84 ======================================================================================= Total return* (1.53)% (1.60)%*** Ratio of net expenses to average net assets 1.77%** 1.75%** Ratio of net investment income (loss) to average net assets (1.45)%** (1.03)%** Portfolio turnover rate 108%** 62%** Net assets, end of period (in thousands) $ 6,909 $ 6,559 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 3.50%** 3.35%** Net investment income (loss) to average net assets (3.18)%** (2.63)%** ======================================================================================= * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not Annualized. The accompanying notes are an integral part of these financial statements. 36 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------- 12/31/14 to 2/28/15 (unaudited) -------------------------------------------------------------------------------- Class K Net asset value, beginning of period $ 9.64 -------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ (0.07) Net realized and unrealized gain (loss) on investments 0.11 -------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.04 -------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ -- -------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ 0.04 -------------------------------------------------------------------------------- Net asset value, end of period $ 9.68 ================================================================================ Total return* 0.41%*** Ratio of net expenses to average net assets 0.75%** Ratio of net investment income (loss) to average net assets (4.51)%** Portfolio turnover rate 108%** Net assets, end of period (in thousands) $ 10 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 3.04%** Net investment income (loss) to average net assets (6.80)%** ================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period. ** Annualized. *** Not Annualized. The accompanying notes are an integral part of these financial statements. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 37 Financial Highlights (continued) ---------------------------------------------------------------------------------------- Six Months Ended 2/28/15 1/30/14 (unaudited) to 8/31/14 ---------------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 9.90 $ 10.00 ---------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ (0.02) $ (0.00)(a) Net realized and unrealized gain (loss) on investments (0.09) (0.10) ---------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (0.11) $ (0.10) ---------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.11) $ -- ---------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.22) $ (0.10) ---------------------------------------------------------------------------------------- Net asset value, end of period $ 9.68 $ 9.90 ======================================================================================== Total return* (1.08)% (1.00)%*** Ratio of net expenses to average net assets 0.75%** 0.75%** Ratio of net investment income (loss) to average net assets (0.44)%** (0.03)%** Portfolio turnover rate 108%** 62%** Net assets, end of period (in thousands) $ 6,459 $ 6,621 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 2.48%** 2.36%** Net investment income (loss) to average net assets (2.17)%** (1.64)%** ======================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period. ** Annualized. *** Not Annualized. (a) Amount rounds to less than $0.01 or $(0.01) per share. The accompanying notes are an integral part of these financial statements. 38 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Notes to Financial Statements | 2/28/15 (unaudited) 1. Organization and Significant Accounting Policies Pioneer Absolute Return Bond Fund (the Fund) is one of five portfolios comprising Pioneer Series Trust V, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The Fund's investment objective is to seek total return. The Fund offers four classes of shares designated as Class A, Class C, Class K and Class Y shares. Class A, Class C and Class Y shares commenced operations offered on January 30, 2014. Class K shares commenced operations on December 31, 2014. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board the flexibility to specify either per-share voting or dollar-weighted voting when submitting matters for shareholder approval. Under per-share voting, each share of a class of the Fund is entitled to one vote. Under dollar-weighted voting, a shareholder's voting power is determined not by the number of shares owned, but by the dollar value of the shares on the record date. Each share class has exclusive voting rights with respect to matters affecting only that class, including with respect to the distribution plan for that class. There is no distribution plan for Class K or Class Y shares. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles that require the management of the Fund to, among other things, make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses and gains and losses on investments during the reporting period. Actual results could differ from those estimates. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements, which are consistent with those policies generally accepted in the investment company industry: Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 39 A. Security Valuation Security transactions are recorded as of trade date. The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. Senior floating rate loan interests (senior loans) are valued in accordance with guidelines established by the Board of Trustees at the mean between the last available bid and asked prices from one or more brokers or dealers as obtained from Loan Pricing Corporation, an independent pricing service. If price information is not available from Loan Pricing Corporation, or if the price information is deemed to be unreliable, price information will be obtained from an alternative loan interest pricing service. If no reliable price quotes are available from either the primary or alternative pricing service, broker quotes will be solicited. Fixed income securities are valued at prices supplied by independent pricing services, which consider such factors as market prices, market events, quotations from one or more brokers, Treasury spreads, yields, maturities and ratings. Valuations may be supplemented by dealers and other sources, as required. Equity securities that have traded on an exchange are valued at the last sale price on the principal exchange where they are traded. Equity securities that have not traded on the date of valuation, or securities for which sale prices are not available, generally are valued using the mean between the last bid and asked prices. Shares of money market mutual funds are valued at such funds' net asset value. Cash may include overnight time deposits at approved financial institutions. Trading in foreign securities is substantially completed each day at various times prior to the close of the NYSE. The values of such securities used in computing the net asset value of the Fund's shares are determined as of such times. Securities or loan interests for which independent pricing services are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of Pioneer Investment Management, Inc. (PIM), the Fund's investment advisor, pursuant to procedures adapted by the Fund's Board of Trustees. PIM's fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. PIM's fair valuation team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the 40 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. At February 28, 2015, no securities were valued using fair value methods (other than securities valued using prices supplied by independent pricing services). B. Investment Income and Transactions Principal amounts of mortgage-backed securities are adjusted for monthly paydowns. Premiums and discounts related to certain mortgage-backed securities are amortized or accreted in proportion to the monthly paydowns. All discounts/premiums on purchase prices of debt securities are accreted/amortized for financial reporting purposes over the life of the respective securities, and such accretion/amortization is included in interest income. Dividend income is recorded on the ex-dividend date except that certain dividends from foreign securities where the ex-dividend date may have passed are recorded as soon as the Fund becomes aware of the ex-dividend data in the exercise of reasonable diligence. Interest income is recorded on the accrual basis. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. C. Foreign Currency Translation The books and records of the Fund are maintained in U.S. dollars. Amounts denominated in foreign currencies are translated into U.S. dollars using current exchange rates. Net realized gains and losses on foreign currency transactions, if any, represent, among other things, the net realized gains and losses on foreign currency contracts, disposition of foreign currencies and the difference between the amount of income accrued and the U.S. dollars actually received. Further, the effects of changes in foreign currency exchange rates on investments are not segregated in the statement of operations from the effects of changes in the market price of those securities but are included with the net realized and unrealized gain or loss on investments. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 41 D. Futures Contracts The Fund may enter into futures transactions in order to attempt to hedge against changes in interest rates, securities prices and currency exchange rates or to seek to increase total return. Futures contracts are types of derivatives. All futures contracts entered into by the Fund are traded on a futures exchange. Upon entering into a futures contract, the Fund is required to deposit with a broker an amount of cash or securities equal to the minimum "initial margin" requirements of the associated futures exchange. The amount of cash deposited with the broker as collateral at February 28, 2015 was $305,499. Subsequent payments for futures contracts ("variation margin") are paid or received by the Fund, depending on the daily fluctuation in the value of the contracts, and are recorded by the Fund as unrealized appreciation or depreciation. When the contract is closed, the Fund realizes a gain or loss equal to the difference between the opening and closing value of the contract. The use of futures contracts involves, to varying degrees, elements of market, interest rate, currency exchange rate and counterparty risks, which may exceed the amounts recognized by the Fund. Changes in value of the contracts may not directly correlate to changes in value of the underlying securities. The average value of contracts open during the six months ended February 28, 2015 was $6,938,692. At February 28, 2015, open futures contracts were as follows: ------------------------------------------------------------------------------------ Number of Unrealized Contracts Settlement Appreciation/ Type Long/(Short) Month Value (Depreciation) ------------------------------------------------------------------------------------ F/C U.S. 10 yr Note 4 6/15 $ 511,187 $ 2,503 F/C Australia 10 yr Bond Future 10 3/15 1,028,282 29,666 F/C Australia 3 yr Bond Future (31) 3/15 (2,719,737) (9,653) F/C Short Euro BTP Future 8 3/15 1,005,444 6,037 F/C Euro Bund Future (3) 3/15 (535,283) (2,958) F/C Euro BTP Future (18) 3/15 (2,837,680) (117,823) F/C Euro OAT Future (3) 3/15 (504,400) (17,405) F/C Euro OAT Future (9) 6/15 (1,557,310) (14,703) F/C 90 Day Sterling Future (7) 9/16 (1,333,545) (9,725) F/C U.S. 2 yr Note (CBT) (8) 6/15 (1,748,625) (1,750) F/C U.S. 5 yr Note (CBT) 7 6/15 834,969 2,079 ------------------------------------------------------------------------------------ $(7,856,698) $(133,732) ==================================================================================== 42 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 E. Forward Foreign Currency Contracts The Fund may enter into forward foreign currency contracts (contracts) for the purchase or sale of a specific foreign currency at a fixed price on a future date. All contracts are marked to market daily at the applicable exchange rates, and any resulting unrealized appreciation or depreciation is recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a contract is offset by entry into a closing transaction or extinguished by delivery of the currency. Risks may arise upon entering into these contracts from the potential inability of counterparties to meet the terms of the contract and from unanticipated movements in the value of foreign currencies relative to the U.S. dollar (see Note 5). F. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no federal income tax provision is required. As of August 31, 2014, the Fund did not accrue any interest or penalties with respect to unrecognized tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax returns filed within the prior three years remain subject to examination by federal and state tax authorities. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. generally accepted accounting principles. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Capital accounts within the financial statements are adjusted for permanent book/tax differences to reflect tax character, but are not adjusted for temporary differences. The tax character of current year distributions payable will be determined at the end of the current taxable year. There were no distributions paid for the year ended August 31, 2014. The following shows the components of distributable earnings (losses) on a federal income tax basis at August 31, 2014: ---------------------------------------------------------------------------- 2014 ---------------------------------------------------------------------------- Distributable earnings: Undistributed ordinary income $ 83,945 Capital loss carryforward (574,241) Unrealized appreciation 254,423 ---------------------------------------------------------------------------- Total $(235,873) ============================================================================ Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 43 The difference between book-basis and tax-basis net unrealized appreciation is attributable to the tax adjustments relating to credit default swaps and the mark to market of futures contracts and credit default swaps. G. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit), earned $20 in underwriting commissions on the sale of Class A shares during the six months ended February 28, 2015. H. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Distribution fees are calculated based on the average daily net asset value attributable to Class A and Class C shares of the Fund, respectively (see Note 4). Class K or Class Y shares do not pay distribution fees. All expenses and fees paid to the transfer agent, Pioneer Investment Management Shareholder Services, Inc. (PIMSS), for its services are allocated among the classes of shares based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). Distributions to shareowners are recorded as of the ex-dividend date. Distributions paid by the Fund with respect to each class of shares are calculated in the same manner and at the same time, except that net investment income dividends to Class A, Class C, Class K and Class Y shares can reflect different transfer agent and distribution expense rates. I. Risks Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates and economic and political conditions. At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making the Fund more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. The Fund's prospectus contains unaudited information regarding the Fund's principal risks. Please refer to that document when considering the Fund's principal risks. J. Option Writing The Fund may write put and covered call options to seek to increase total return. When an option is written, the Fund receives a premium and becomes obligated to purchase or sell the underlying security at a fixed price upon the exercise of the option. When the Fund writes an option, an amount equal to 44 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 the premium received by the Fund is recorded as a liability and is subsequently adjusted to the current value of the option written. Premiums received from writing options that expire unexercised are treated by the Fund on the expiration date as realized gains from investments. The difference between the premium and the amount paid on effecting a closing purchase transaction, including brokerage commissions, is also treated as a realized gain or, if the premium is less than the amount paid for the closing purchase transaction, as a realized loss. If a call option is exercised, the premium is added to the proceeds from the sale of the underlying security in determining whether the Fund has realized a gain or loss. The Fund as writer of an option bears the market risk of an unfavorable change in the price of the security underlying the written option. The average value of written option contracts open during the six months ended February 28, 2015 was $4,283. There were no written options outstanding at February 28, 2015. Transactions in written options for the six months ended February 28, 2015 are summarized as follows: ---------------------------------------------------------------------------- Number of Premium Contracts Paid ---------------------------------------------------------------------------- Options open at beginning of period (980,000) $(11,362) Options opened (760,000) (17,487) Options exercised 200,000 7,360 Options closed -- -- Options expired 1,540,000 21,489 ---------------------------------------------------------------------------- Options open at end of period -- $ -- ============================================================================ K. Purchased Options The Fund may purchase put and call options to seek increase total return. Purchased call and put options entitle the Fund to buy and sell a specified number of shares or units of a particular security, currency or index at a specified price at a specific date or within a specific period of time. Upon the purchase of a call or put option, the premium paid by the Fund is included in the Statement of Assets and Liabilities as an investment. All premiums are marked-to-market daily, and any unrealized gains or losses are recorded in the Fund's financial statements. As the purchaser of an index option, the Fund has the right to receive a cash payment equal to any depreciation in the value of the index below the strike price of the option (in the case of a put) or equal to any appreciation in the value of the index over the strike price of the option (in the case of a call) as of the valuation date of the option. Premiums paid for purchased calls and put options which have expired are treated as realized losses on investments in the Statement of Operations. Upon the exercise or closing of a purchased put option, the premium is offset against the proceeds on the sale of the underlying security or financial instrument in Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 45 order to determine the realized gain or loss on investments. Upon the exercise or closing of a purchased call option, the premium is added to the cost of the security or financial instrument. The risk associated with purchasing options is limited to the premium originally paid. The average value of purchased options open during the six months ended February 28, 2015 was $103,394. Purchased option contracts outstanding at period end are listed at the end of the Fund's schedule of investments. L. Written Interest Rate Swaptions The Fund may enter into interest rate swaptions to seek to manage exposure to fluctuations in interest rates or to seek to enhance yield. A swaption grants the right but not the obligation to enter into the underlying swap at a future specified date. When the Fund writes a swaption, the Fund receives a premium and becomes obligated to enter into a swap contract according to the terms of the underlying agreement. The premium received by the Fund is recorded as a liability and is subsequently adjusted to the current value of the written swaption. Premiums received from writing swaptions that expire unexercised are treated by the Fund on the expiration date as realized gains. The difference between the premium and the amount paid on effecting a closing purchase transaction, including brokerage commissions, is also treated as a realized gain or, if the premium is less than the amount paid for the closing purchase transaction, as a realized loss. If a written swaption is exercised, the cost basis of the swap is adjusted by the amount of premium received. The Fund as writer of a swaption bears the market risk of an unfavorable change in the price of the security underlying the written swaption. Open interest rate swaption contracts at February 28, 2015 are listed in the Schedule of Investments. The average value of written swaption contracts open during the six months ended February 28, 2015 was $62,882. The Fund held two interest rate swaptions that were open at February 28, 2015. If the swaptions were exercised at February 28, 2015, the maximum amount the Fund would have been required to pay was $119,985. Transactions in interest rate swaptions for the six months ended February 28, 2015 are summarized as follows: ---------------------------------------------------------------------------- Number of Premium Contracts Paid ---------------------------------------------------------------------------- Options open at beginning of period (7,600,000) $(200,002) Options opened (7,900,000) (152,732) Options exercised 9,800,000 232,748 Options closed -- -- Options expired -- -- ---------------------------------------------------------------------------- Options open at end of period (5,700,000) $(119,986) ============================================================================ 46 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 M. Purchased Interest Rate Swaptions The Fund may purchase put and call swaptions in order to attempt to hedge against changes in the value of portfolio securities or to seek to increase total return. Purchased call and put swaptions entitle the Fund to buy and sell a specified number of shares or units of a particular security, currency or index at a specified price at a specific date or within a specific period of time. Upon the purchase of a call or put swaption, the premium paid by the Fund is included in the Statement of Assets and Liabilities as an investment. All premiums are marked-to-market daily, and any unrealized gains or losses are recorded in the Fund's financial statements. As the purchaser of an index swaption, the Fund has the right to receive a cash payment equal to any depreciation in the value of the index below the strike price of the swaption (in the case of a put) or equal to any appreciation in the value of the index over the strike price of the swaption (in the case of a call) as of the valuation date of the swaption. Premiums paid for purchased calls and put swaptions which have expired are treated as realized losses on investments in the Statement of Operations. Upon the exercise or closing of a purchased put swaption, the premium is offset against the proceeds on the sale of the underlying security or financial instrument in order to determine the realized gain or loss on investments. Upon the exercise or closing of a purchased call swaption, the premium is added to the cost of the security or financial instrument. The risk associated with purchasing swaptions is limited to the premium originally paid. The average value of contracts open during the six months ended February 28, 2015 was $228,075. Purchased swaptions open at period end are listed at the end of the Fund's Schedule of Investments. N. Credit Default Swap Agreements A credit default swap is a contract between a buyer of protection and a seller of protection against a pre-defined credit event. The Fund may buy or sell credit default swap contracts to seek to increase the Fund's income, or to attempt to hedge the risk of default on Fund securities. A credit default swap index is used to hedge risk or take a position on a basket of credit entities or indices. As a seller of protection, the Fund would be required to pay the notional (or other agreed-upon) value of the referenced debt obligation to the counterparty in the event of a default by a U.S. or foreign corporate issuer of a debt obligation, which would likely result in a loss to the Fund. In return, the Fund would receive from the counterparty a periodic stream of payments during the term of the contract provided that no event of default occurred. The maximum exposure of loss to the seller would be the notional value of the credit default swaps outstanding. If no default occurs, the Fund would keep the stream of payments and would have no payment obligation. The Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 47 Fund may also buy credit default swap contracts in order to hedge against the risk of default of debt securities, in which case the Fund would function as the counterparty referenced above. When the Fund enters into a credit default swap contract, the protection buyer makes an upfront or periodic payment to the protection seller in exchange for the rights to receive a contingent payment. An upfront payment made by the Fund, as the protection buyer, is recorded as an asset in the Statement of Assets and Liabilities. Periodic payments received or paid by the Fund are recorded as realized gains or losses in the Statement of Operations. Credit default swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Payments received or made as a result of a credit event or upon termination of the contract are recognized, net of the appropriate amount of the upfront payment, as realized gains or losses in the Statement of Operations. Certain swap contracts that are cleared through a central clearinghouse are referred to as centrally cleared swaps. All payments made or received by the Fund are pursuant to a centrally cleared swap contract with the central clearing party rather than the original counterparty. Upon entering into a centrally cleared swap contract, the Fund is required to make an initial margin deposit, either in cash or in securities. The daily change in value on open centrally cleared contracts is recorded as variation margin on centrally cleared swaps on the Statement of Assets and Liabilities. Credit default swap contracts involving the sale of protection may involve greater risks than if the Fund had invested in the referenced debt instrument directly. Credit default swap contracts are subject to general market risk, liquidity risk, counterparty risk and credit risk. If the Fund is a protection buyer and no credit event occurs, it will lose its investment. If the Fund is a protection seller and a credit event occurs, the value of the referenced debt instrument received by the Fund, together with the periodic payments received, may be less than the amount the Fund pays to the protection buyer, resulting in a loss to the Fund. Open credit default swap contracts at February 28, 2015 are listed in the Schedule of Investments. The average value of credit default swap contracts open during the six months ended February 28, 2015 was $13,400. O. Cross Currency Swap Contracts The Fund may enter into a cross currency swap contract to attempt to manage and/or gain exposure to fluctuations in interest and/or currency exchange rates. When entering into a cross currency swap contract, the Fund 48 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 negotiates with the counterparty to exchange a periodic stream of payments (determined using fixed or floating rates) based on the notional amount of two different currencies. The notional amounts are typically determined based on exchange rates at the opening of the contract. Cross currency swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Payments received or made under the contract or upon termination of the contract are recognized, net of the appropriate amount of any upfront payment, as realized gains or losses in the Statement of Operations. Cross currency swaps are subject to counterparty risk. There were no open cross currency swap contracts at February 28, 2015. The average value of cross currency swap contracts open during the six months ended February 28, 2015 was $89,453. P. Inflation Rate Swap Contracts The Fund may enter into inflation rate swap contracts to attempt to hedge against inflation. Pursuant to the inflation rate swap agreement, the Fund negotiates with a counterparty to exchange a periodic stream of payments, based on a benchmark inflation index. One cash flow stream will typically be a floating rate payment linked to the specified inflation index while the other is typically a fixed interest rate. Inflation rate swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Inflation rate swaps are normally issued on a zero coupon basis where all payments compound during the life of the contract and are netted upon the termination or maturity of the contract. Final payments received or paid by the Fund are recorded as realized gains or losses in the Statement of Operations. Inflation rate swap contracts are subject to movements in interest rates. Open inflation rated swap contracts at February 28, 2015 are listed in the Schedule of Investments. The average value of inflation rate swap contracts open during the six months ended February 28, 2015 was $7,870. Q. Interest Rate Swap Contracts The Fund may enter into interest rate swaps to attempt to hedge against interest rate fluctuations or to enhance its income. Pursuant to the interest rate swap agreement, the Fund negotiates with a counterparty to exchange a periodic stream of payments based on a benchmark interest rate. One cash flow stream will typically be a floating rate payment based upon the specified floating benchmark interest rate while the other is typically a fixed interest Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 49 rate. Payment flows are usually netted against each other, with the difference being paid by one party to the other on a monthly basis. Periodic payments received or paid by the Fund are recorded as realized gains or losses in the Statement of Operations. Interest rate swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Interest rate swap contracts are subject to counterparty risk and movements in interest rates. Open interest rate swap contracts at February 28, 2015 are listed in the Schedule of Investments. The average value of interest swap swap contracts open during the six months ended February 28, 2015 was $44,647. 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, manages the Fund's portfolio. Management fees are calculated daily at an annual rate of 0.60% of the average daily net assets of the Fund. PIM has contractually agreed to limit ordinary operating expenses to the extent required to reduce Fund expenses to 1.15%, 1.90%, 0.75% and 0.75% of the average daily net assets attributable to Class A, Class C, Class K and Class Y shares, respectively. These expense limitations are in effect through January 1, 2016. Fees waived and expenses reimbursed during the six months ended February 28, 2015 are reflected on the Statement of Operations. Fees and expenses of other investment companies in which the Fund may invest are not included in the expense limitations noted above. There can be no assurance that PIM will extend the expense limitation agreement for a class of shares beyond the date referred to above. In addition, under the management and administration agreements, certain other services and costs, including accounting, regulatory reporting and insurance premiums, are paid by the Fund as administrative reimbursements. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $10,144 in management fees, administrative costs and certain other reimbursements payable to PIM at February 28, 2015. 3. Transfer Agent PIMSS, a wholly owned indirect subsidiary of UniCredit, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. 50 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 In addition, the Fund reimburses PIMSS for out-of-pocket expenses incurred by PIMSS related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the six months ended February 28, 2015, such out-of-pocket expenses by class of shares were as follows: -------------------------------------------------------------------------------- Shareholder Communications: -------------------------------------------------------------------------------- Class A $ 398 Class C 300 Class Y (114) -------------------------------------------------------------------------------- Total $ 584 ================================================================================ Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $163 in transfer agent fees and out-of-pocket reimbursements payable from PIMSS at February 28, 2015. 4. Distribution Plan The Fund has adopted a Distribution Plan pursuant to Rule 12b-1 of the Investment Company Act of 1940 with respect to its Class A and Class C shares. Pursuant to the Plan, the Fund pays PFD 0.25% of the average daily net assets attributable to Class A shares as compensation for personal services and/or account maintenance services or distribution services with regard to Class A shares. Pursuant to the Plan, the Fund also pays PFD 1.00% of the average daily net assets attributable to Class C shares. The fee for Class C shares consists of a 0.25% service fee and a 0.75% distribution fee paid as compensation for personal services and/or account maintenance services or distribution services with regard to Class C shares. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $700 in distribution fees payable to PFD at February 28, 2015. In addition, redemptions of each class of shares (except Class K or Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class K or Class Y shares. Proceeds from the CDSCs are paid to PFD. For the six months ended February 28, 2015, no CDSCs were paid to PFD. 5. Forward Foreign Currency Contracts At February 28, 2015, the Fund had entered into various forward foreign currency contracts that obligate the Fund to deliver or take delivery of currencies at specified future maturity dates. Alternatively, prior to the Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 51 settlement date of a forward foreign currency contract, the Fund may close out such contract by entering into an offsetting contract. The average value of forward foreign currency contracts open during the six months ended February 28, 2015 was $4,387,617. Open forward foreign currency contracts at February 28, 2015 were as follows: -------------------------------------------------------------------------------------------------------------- Quantity/ Shares US $ Value Currency Purchased/ Book Settlement at Net Unrealized Description Counterparty (Sold) Value Date 2/28/15 Appreciation -------------------------------------------------------------------------------------------------------------- INR (Indian Barclays Plc 7,650,000 $ (120,000) 7/7/15 $ 120,630 $ 630 Rupee) INR (Indian Barclays Plc 5,780,250 (90,000) 3/23/15 93,279 3,279 Rupee) GBP (British Credit Suisse (90,000) 139,014 4/17/15 (138,869) 145 Pound Sterling) INR (Indian Credit Suisse 7,780,800 (120,000) 9/22/15 120,775 775 Rupee) EUR (European Credit Suisse (110,000) 124,214 4/17/15 (123,154) 1,060 Euro) NZD (New Credit Suisse 160,000 (119,002) 4/17/15 120,429 1,427 Zealand Dollar) JPY (Japanese Credit Suisse (16,050,654) 136,494 4/17/15 (134,178) 2,316 Yen) GBP (British Credit Suisse 90,000 (136,494) 4/17/15 138,869 2,375 Pound Sterling) GBP (British Credit Suisse 80,000 (120,700) 4/17/15 123,439 2,739 Pound Sterling) GBP (British Credit Suisse 90,000 (135,722) 4/17/15 138,869 3,147 Pound Sterling) TRY (Turkish Lira) Credit Suisse (195,129) 80,000 4/17/15 (76,844) 3,156 TRY (Turkish Lira) Credit Suisse (192,716) 80,000 4/17/15 (75,893) 4,107 TRY (Turkish Lira) Credit Suisse (191,942) 80,000 4/17/15 (75,589) 4,411 EUR (European Credit Suisse (150,000) 172,609 4/17/15 (167,937) 4,672 Euro) EUR (European Credit Suisse (1,350,000) 1,525,406 4/17/15 (1,511,435) 13,971 Euro) EUR (European Credit Suisse (440,000) 510,957 4/17/15 (492,616) 18,341 Euro) INR (Indian Goldman Sachs (8,136,700) 130,000 5/5/15 (129,976) 24 Rupee) & Co. KRW (South Goldman Sachs 176,800,000 (160,000) 3/30/15 160,482 482 Korean Won) & Co. KRW (South Goldman Sachs (185,691,000) 170,000 4/22/15 (168,397) 1,603 Korean Won) & Co. KRW (South Goldman Sachs (168,320,000) 160,000 3/30/15 (152,784) 7,216 Korean Won) & Co. BRL (Brazilian Goldman Sachs (331,440) 120,000 7/9/15 (111,612) 8,388 Real) & Co. EUR (European Morgan Stanley (30,000) 33,791 6/25/15 (33,621) 170 Euro) Co. GBP (British Morgan Stanley 64,954 (100,000) 4/17/15 100,223 223 Pound Sterling) Co. INR (Indian Morgan Stanley 6,356,000 (100,000) 7/7/15 100,226 226 Rupee) Co. 52 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------------------------- Quantity/ Shares US $ Value Currency Purchased/ Book Settlement at Net Unrealized Description Counterparty (Sold) Value Date 2/28/15 Appreciation -------------------------------------------------------------------------------------------------------------- NZD (New Morgan Stanley (80,000) $ 60,529 4/17/15 $ (60,215) $ 314 Zealand Dollar) Co. NZD (New Morgan Stanley (80,000) 60,555 4/17/15 (60,215) 340 Zealand Dollar) Co. EUR (European Morgan Stanley (59,000) 66,944 4/17/15 (66,055) 889 Euro) Co. GBP (British Morgan Stanley 110,000 (168,801) 4/17/15 169,728 927 Pound Sterling) Co. ZAR (South Morgan Stanley (1,044,804) 90,000 4/17/15 (88,828) 1,172 African Rand) Co. NZD (New Morgan Stanley 163,935 (122,156) 4/17/15 123,391 1,235 Zealand Dollar) Co. EUR (European Morgan Stanley (50,000) 57,249 4/17/15 (55,979) 1,270 Euro) Co. NZD (New Morgan Stanley 213,620 (159,350) 4/17/15 160,788 1,438 Zealand Dollar) Co. EUR (European Morgan Stanley (110,000) 125,041 4/17/15 (123,154) 1,887 Euro) Co. JPY (Japanese Morgan Stanley (18,901,963) 160,000 4/17/15 (158,014) 1,986 Yen) Co. MXN (Mexican Morgan Stanley (1,767,486) 120,000 4/17/15 (117,966) 2,034 Peso) Co. GBP (British Morgan Stanley 80,000 (121,320) 4/17/15 123,439 2,119 Pound Sterling) Co. EUR (European Morgan Stanley (150,000) 170,459 4/17/15 (167,937) 2,522 Euro) Co. CNY (New Morgan Stanley (2,507,400) 400,000 4/28/15 (397,326) 2,674 Chinese Yuan) Co. NZD (New Morgan Stanley (157,221) 121,320 4/17/15 (118,337) 2,983 Zealand Dollar) Co. AUD (Australian Morgan Stanley (200,000) 159,350 4/17/15 (155,808) 3,542 Dollar) Co. EUR (European Morgan Stanley (100,000) 116,006 4/17/15 (111,958) 4,048 Euro) Co. JPY (Japanese Morgan Stanley (109,401,432) 918,609 4/17/15 (914,557) 4,052 Yen) Co. GBP (British Morgan Stanley 130,000 (196,365) 4/17/15 200,588 4,223 Pound Sterling) Co. NZD (New Morgan Stanley (210,080) 158,580 4/17/15 (158,124) 456 Zealand Dollar) Co. EUR (European Morgan Stanley (1,999,328) 2,363,609 4/17/15 (2,238,411) 125,198 Euro) Co. -------------------------------------------------------------------------------------------------------------- Total $250,192 ============================================================================================================== Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 53 -------------------------------------------------------------------------------------------------------------- Quantity/ Shares US $ Value Currency Purchased/ Book Settlement at Net Unrealized Description Counterparty (Sold) Value Date 2/28/15 Depreciation -------------------------------------------------------------------------------------------------------------- INR (Indian Barclays Plc (6,427,000) $ 100,000 7/7/15 $ (101,345) $ (1,345) Rupee) INR (Indian Barclays Plc (7,788,000) 120,000 9/22/15 (120,887) (887) Rupee) INR (Indian Citibank (7,884,000) 120,000 7/7/15 (124,320) (4,320) Rupee) TRY (Turkish Lira) Credit Suisse 190,104 (80,000) 4/17/15 74,865 (5,135) EUR (European Credit Suisse 100,000 (116,681) 4/17/15 111,958 (4,723) Euro) EUR (European Credit Suisse 150,000 (171,743) 4/17/15 167,937 (3,806) Euro) EUR (European Credit Suisse 110,000 (125,635) 4/17/15 123,154 (2,481) Euro) NZD (New Credit Suisse (220,000) 164,393 4/17/15 (165,590) (1,197) Zealand Dollar) MXN (Mexican Credit Suisse (1,213,887) 80,000 4/17/15 (81,018) (1,018) Peso) MXN (Mexican Credit Suisse 2,391,059 (160,000) 4/17/15 159,585 (415) Peso) MXN (Mexican Credit Suisse (1,202,658) 80,000 4/17/15 (80,268) (268) Peso) GBP (British Credit Suisse (80,000) 123,331 4/17/15 (123,439) (108) Pound Sterling) JPY (Japanese Credit Suisse (9,581,080) 80,000 4/17/15 (80,094) (94) Yen) JPY (Japanese Credit Suisse 9,569,408 (80,000) 4/17/15 79,997 (3) Yen) BRL (Brazilian Goldman Sachs 339,120 (120,000) 7/9/15 114,198 (5,802) Real) & Co. INR (Indian Goldman Sachs (5,589,900) 90,000 3/23/15 (90,207) (207) Rupee) & Co. INR (Indian Goldman Sachs 8,127,600 (130,000) 5/5/15 129,831 (169) Rupee) & Co. JPY (Japanese Morgan Stanley 52,450,000 (445,543) 4/17/15 438,463 (7,080) Yen) Co. TRY (Turkish Lira) Morgan Stanley 185,607 (80,000) 4/17/15 73,094 (6,906) Co. AUD (Australian Morgan Stanley 200,000 (162,480) 4/17/15 155,808 (6,672) Dollar) Co. EUR (European Morgan Stanley 30,000 (40,155) 6/25/15 33,621 (6,534) Euro) Co. TRY (Turkish Lira) Morgan Stanley 190,061 (80,000) 4/17/15 74,848 (5,152) Co. SGD (Singapore Morgan Stanley 268,170 (200,189) 4/17/15 196,504 (3,685) Dollar) Co. GBP (British Morgan Stanley (130,000) 197,733 4/17/15 (200,588) (2,855) Pound Sterling) Co. GBP (British Morgan Stanley (90,000) 136,099 4/17/15 (138,869) (2,770) Pound Sterling) Co. NZD (New Morgan Stanley (226,756) 168,801 4/17/15 (170,675) (1,874) Zealand Dollar) Co. 54 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------------------------- Quantity/ Shares US $ Value Currency Purchased/ Book Settlement at Net Unrealized Description Counterparty (Sold) Value Date 2/28/15 Depreciation -------------------------------------------------------------------------------------------------------------- EUR (European Morgan Stanley 120,200 $(135,942) 4/17/15 $ 134,574 $ (1,368) Euro) Co. GBP (British Morgan Stanley (80,000) 122,156 4/17/15 (123,439) (1,283) Pound Sterling) Co. EUR (European Morgan Stanley 150,000 (169,209) 4/17/15 167,937 (1,272) Euro) Co. NZD (New Morgan Stanley (167,485) 124,824 4/17/15 (126,063) (1,239) Zealand Dollar) Co. GBP (British Morgan Stanley (50,100) 76,290 4/17/15 (77,303) (1,013) Pound Sterling) Co. NZD (New Morgan Stanley 220,000 (166,452) 4/17/15 165,590 (862) Zealand Dollar) Co. NZD (New Morgan Stanley (218,732) 163,958 4/17/15 (164,636) (678) Zealand Dollar) Co. JPY (Japanese Morgan Stanley 16,218,250 (136,099) 4/17/15 135,579 (520) Yen) Co. AUD (Australian Morgan Stanley 210,000 (163,958) 4/17/15 163,598 (360) Dollar) Co. MXN (Mexican Morgan Stanley 1,794,324 (120,000) 4/17/15 119,757 (243) Peso) Co. AUD (Australian Morgan Stanley 160,000 (124,824) 4/17/15 124,646 (178) Dollar) Co. -------------------------------------------------------------------------------------------------------------- Total $(84,522) ============================================================================================================== 6. Expense Offset Arrangements The Fund has entered into certain expense offset arrangements with PIMSS which may result in a reduction in the Fund's total expenses due to interest earned on cash held by PIMSS. For the six months ended February 28, 2015, the Fund's expenses were not reduced under such arrangements. 7. Assets and Liabilities Offsetting Financial instruments subject to an enforceable master netting agreement have been offset on the Statement of Assets and Liabilities. The following charts show gross assets and liabilities of the Fund as of February 28, 2015. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 55 ------------------------------------------------------------------------------------------------------ Assets: Gross Amounts Net Gross Amounts Not Offset Offset Amounts of in the Statement of in the Assets Assets and Liabilities Gross Statement Presented in ------------------------ Amounts of of Assets the Statement Cash Recognized and of Assets and Financial Collateral Net Description Assets Liabilities Liabilities Instruments Received* Amount ------------------------------------------------------------------------------------------------------ Forward foreign currency contracts $250,192 $ -- $ 250,192 $ -- $ -- $250,192 Swap contracts 618,658 -- (618,658) -- -- -- Written options and written swaptions -- -- -- -- -- -- ------------------------------------------------------------------------------------------------------ $868,850 $ -- $ (368,466) $ -- $ -- $250,192 ====================================================================================================== ------------------------------------------------------------------------------------------------------ Liabilities: Gross Amounts Net Gross Amounts Not Offset Offset Amounts of in the Statement of in the Liabilities Assets and Liabilities Gross Statement Presented In ------------------------ Amounts of of Assets the Statement Cash Recognized and of Assets and Financial Collateral Net Description Liabilities Liabilities Liabilities Instruments Pledged* Amount ------------------------------------------------------------------------------------------------------ Forward foreign currency contracts $ 84,522 $ $ 84,522 $ -- $ -- $ 84,522 Swap contracts 753,875 (618,658) 135,217 -- (135,217) -- Written options and written swaptions 87,778 -- 87,778 -- -- 87,778 ------------------------------------------------------------------------------------------------------ $926,175 $(618,658) $307,517 $ -- $(135,217) $ 172,300 ====================================================================================================== * The amount presented here may be less than the total amount of collateral received/pledged as the net amount of derivative assets and liabilities cannot be less than $0. 56 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 8. Additional Disclosures about Derivative Instruments and Hedging Activities: Values of derivative instruments as of February 28, 2015 were as follows: ----------------------------------------------------------------------------------------------- Derivatives Not Accounted for as Asset Derivatives 2015 Liabilities Derivatives 2015 Hedging Instruments ----------------------------- ------------------------------- Under Accounting Statement of Assets Statement of Assets Standards Codification and Liabilities and Liabilities (ASC) 815 Location Value Location Value ----------------------------------------------------------------------------------------------- Forward foreign Net unrealized Net unrealized currency contracts appreciation on depreciation on forward foreign forward foreign currency contracts $250,192 currency contracts $ 84,522 Swap contracts Net unrealized Net unrealized appreciation on depreciation on swap contracts -- swap contracts 135,217 Futures contracts Net unrealized Net unrealized appreciation on depreciation on futures contracts -- futures contracts 133,732 Written options and Written options Written options written swaptions and swaptions -- and swaptions 87,778 ----------------------------------------------------------------------------------------------- Total $250,192 $441,249 =============================================================================================== Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 57 The effect of derivative instruments on the Statement of Operations for the six months ended February 28, 2015 was as follows: ------------------------------------------------------------------------------------------- Change in Derivatives Realized Unrealized Not Accounted Gain or Appreciation or for as Hedging (Loss) on (Depreciation) Instruments Under Location of Gain or (Loss) Derivatives on Derivatives Accounting Standards on Derivatives Recognized Recognized Recognized Codification (ASC) 815 in Income in Income in Income ------------------------------------------------------------------------------------------- Forward foreign Net realized gain (loss) on currency contracts forward foreign currency contracts $ 655,337 Forward foreign Change in unrealized appreciation currency contracts (depreciation) on forward foreign currency contracts $ (39,508) Futures contracts Net realized gain (loss) on futures contracts $(292,537) Futures contracts Change in net unrealized appreciation (depreciation) on futures contracts $ 17,311 Swap contracts Net realized gain (loss) on swap contracts $(294,470) Swap contracts Change in net unrealized appreciation (depreciation) on swap contracts $(109,884) Written options Net realized gain (loss) on and written written options $ 96,698 swaptions Written options Change in net unrealized and written appreciation (depreciation) on swaptions written options $ (63,270) 58 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Approval of Investment Advisory Agreement Pioneer Investment Management, Inc. (PIM) serves as the investment adviser to Pioneer Absolute Return Bond Fund (the Fund) pursuant to an investment advisory agreement between PIM and the Fund. In order for PIM to remain the investment adviser of the Fund, the Trustees of the Fund must determine annually whether to renew the investment advisory agreement for the Fund. The contract review process began in January 2014 as the Trustees of the Fund agreed on, among other things, an overall approach and timeline for the process. Contract review materials were provided to the Trustees in March 2014 and July 2014. Supplemental contract review materials were provided to the Trustees in September 2014. In addition, the Trustees reviewed and discussed the Fund's performance at regularly scheduled meetings throughout the year, and took into account other information related to the Fund provided to the Trustees at regularly scheduled meetings, in connection with the review of the Fund's investment advisory agreement. In March 2014, the Trustees, among other things, discussed the memorandum provided by Fund counsel that summarized the legal standards and other considerations that are relevant to the Trustees in their deliberations regarding the renewal of the investment advisory agreement, and reviewed and discussed the qualifications of the investment management teams, as well as the level of investment by the Fund's portfolio managers in the Fund. In July 2014, the Trustees, among other things, reviewed the Fund's management fee and total expense ratios, the financial statements of PIM and its parent companies, the profitability analyses provided by PIM, and possible economies of scale. The Trustees also reviewed the profitability of the institutional business of PIM and PIM's affiliate, Pioneer Institutional Asset Management, Inc. (together with PIM, "Pioneer"), as compared to that of PIM's fund management business, and considered the differences between the fees and expenses of the Fund and the fees and expenses of Pioneer's institutional accounts, as well as the different services provided by PIM to the Fund and by Pioneer to the institutional accounts. The Trustees further considered contract review materials in September 2014. At a meeting held on September 16, 2014, based on their evaluation of the information provided by PIM and third parties, the Trustees of the Fund, including the Independent Trustees voting separately, unanimously approved the renewal of the investment advisory agreement for another year. In considering the renewal of the investment advisory agreement, the Trustees considered various factors that they determined were relevant, including the Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 59 factors described below. In all quintile rankings referred to throughout this disclosure, first quintile is most favorable to the Fund's shareowners. The Trustees did not identify any single factor as the controlling factor in determining to approve the renewal of the agreement. Nature, Extent and Quality of Services The Trustees considered the nature, extent and quality of the services that had been provided by PIM to the Fund, taking into account the investment objective and strategy of the Fund. The Trustees reviewed the terms of the investment advisory agreement. The Trustees also reviewed PIM's investment approach for the Fund and its research process. The Trustees considered the resources of PIM and the personnel of PIM who provide investment management services to the Fund. They also reviewed the amount of non- Fund assets managed by the portfolio managers of the Fund. The Trustees considered the non-investment resources and personnel of PIM involved in PIM's services to the Fund, including PIM's compliance and legal resources and personnel. The Trustees noted the substantial attention and high priority given by PIM's senior management to the Pioneer fund complex. The Trustees considered that PIM supervises and monitors the performance of the Fund's service providers and provides the Fund with personnel (including Fund officers) and other resources that are necessary for the Fund's business management and operations. The Trustees also considered that, as administrator, PIM is responsible for the administration of the Fund's business and other affairs. The Trustees considered the fees paid to PIM for the provision of administration services. Based on these considerations, the Trustees concluded that the nature, extent and quality of services that had been provided by PIM to the Fund were satisfactory and consistent with the terms of the investment advisory agreement. Performance of the Fund In considering the Fund's performance, the Trustees regularly review and discuss analysis and data prepared by PIM and information comparing the Fund's performance with the performance of its peer group of funds as classified by each of Morningstar, Inc. (Morningstar) and Lipper, and with the performance of the Fund's benchmark index. They also discuss the Fund's performance with PIM on a regular basis. The Trustees confirmed that these regular reviews and discussions were factored into the Trustees' deliberations concerning the renewal of the advisory agreement. For purposes of their contract renewal deliberations, the Trustees considered the discussions held throughout the year regarding the Fund's performance and the performance 60 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 results of the Fund over various time periods, including the Fund's performance results for periods ended June 30, 2014. The Trustees indicated that the Fund's performance was satisfactory and supported the renewal of the investment advisory agreement. Management Fee and Expenses The Trustees considered information showing the fees and expenses of the Fund in comparison to the management fees and expense ratios of its peer group of funds as classified by Morningstar and also to the expense ratios of a peer group of funds selected on the basis of criteria determined by the Independent Trustees for this purpose using data provided by Strategic Insight Mutual Fund Research and Consulting, LLC (Strategic Insight), an independent third party. The Trustees considered that the Fund's management fee for the twelve months ended June 30, 2014 was in the second quintile relative to the management fees paid by other funds in its Morningstar peer group for the comparable period. The Trustees considered that the expense ratio of the Fund's Class A shares for the twelve months ended June 30, 2014 was in the third quintile relative to its Morningstar peer group and in the second quintile relative its Strategic Insight peer group, in each case for the comparable period. The Trustees noted that PIM was waiving fees and/or reimbursing expenses in order to limit the ordinary operating expenses of the Fund. The Trustees considered the impact of transfer agency, sub-transfer agency, and other non-management fee expenses on the expense ratios of the Fund. The Trustees noted that they separately review the Fund's transfer agency, sub-transfer agency and intermediary arrangements. The Trustees reviewed management fees charged by Pioneer to institutional and other clients, including publicly offered European funds sponsored by affiliates of Pioneer, unaffiliated U.S. registered investment companies (in a sub-advisory capacity), and unaffiliated foreign and domestic separate accounts. The Trustees also considered PIM's costs in providing services to the Fund and Pioneer's costs in providing services to the other clients and considered the differences in management fees and profit margins for Fund and non-Fund services. In evaluating the fees associated with Pioneer's client accounts, the Trustees took into account the respective demands, resources and complexity associated with the Fund and client accounts. The Trustees noted that, in some instances, the fee rates for those clients were lower than the management fee for the Fund and considered that, under the investment advisory agreement with the Fund, PIM performs additional services for the Fund that it does not provide to those other clients or services that are broader in scope, including oversight of the Fund's other service providers and activities related to compliance and the extensive regulatory and tax regimes to Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 61 which the Fund is subject. The Trustees also considered the different entrepreneurial risks associated with PIM's management of the Fund and Pioneer's management of the other client accounts. The Trustees concluded that the management fee payable by the Fund to PIM was reasonable in relation to the nature and quality of the services provided by PIM to the Fund. Profitability The Trustees considered information provided by PIM regarding the profitability of PIM with respect to the advisory services provided by PIM to the Fund, including the methodology used by PIM in allocating certain of its costs to the management of the Fund. The Trustees also considered PIM's profit margin in connection with the overall operation of the Fund. They further reviewed the financial results realized by PIM and its affiliates from non-fund businesses. The Trustees considered PIM's profit margins with respect to the Fund in comparison to the limited industry data available and noted that the profitability of any adviser was affected by numerous factors, including its organizational structure and method for allocating expenses. The Trustees concluded that PIM's profitability with respect to the management of the Fund was not unreasonable. Economies of Scale The Trustees considered PIM's views relating to economies of scale in connection with the Pioneer Funds as fund assets grow and the extent to which any such economies of scale are shared with funds and fund shareholders. The Trustees recognize that economies of scale are difficult to identify and quantify, and that, among other factors that may be relevant, are the following: fee levels, expense subsidization, investment by PIM in research and analytical capabilities and PIM's commitment and resource allocation to the Fund. The Trustees noted that profitability also may be an indicator of the availability of any economies of scale, although profitability may vary for other reasons including reductions in expenses. The Trustees concluded that economies of scale, if any, were being appropriately shared with the Funds. Other Benefits The Trustees considered the other benefits to PIM from its relationship with the Fund. The Trustees considered the character and amount of fees paid by the Fund, other than under the investment advisory agreement, for services provided by PIM and its affiliates. The Trustees further considered the revenues and profitability of PIM's businesses other than the fund business. Pioneer is the principal U.S. asset management business of Pioneer Global Asset Management, the worldwide asset management business of UniCredit 62 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 Group, which manages over $150 billion in assets (including the Funds). Pioneer and the Funds receive reciprocal intangible benefits from the relationship, including mutual brand recognition and, for the Funds, direct and indirect access to the resources of a large global asset manager. The Trustees concluded that any such benefits received by Pioneer as a result of its relationship with the Funds were reasonable and their consideration of the advisory agreement between the Fund and PIM and the fees thereunder were unaffected by Pioneer's possible receipt of any such intangible benefits. Conclusion After consideration of the factors described above as well as other factors, the Trustees, including all of the Independent Trustees, concluded that the investment advisory agreement between PIM and the Fund, including the fees payable thereunder, was fair and reasonable and voted to approve the proposed renewal of the investment advisory agreement for the Fund. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 63 Trustees, Officers and Service Providers Trustees Advisory Trustee Thomas J. Perna, Chairman Lorraine H. Monchak* David R. Bock Benjamin M. Friedman Officers Margaret B.W. Graham Lisa M. Jones, President and Chief Marguerite A. Piret Executive Officer Fred J. Ricciardi Mark E. Bradley, Treasurer and Kenneth J. Taubes Chief Financial Officer Christopher J. Kelley, Secretary and Chief Legal Officer Investment Adviser and Administrator Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Pioneer Investment Management Shareholder Services, Inc. Proxy Voting Policies and Procedures of the Fund are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to shareowners at us.pioneerinvestments.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. * Ms. Monchak is a non-voting Advisory Trustee. 64 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 This page for your notes. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 65 This page for your notes. 66 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 This page for your notes. Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 67 This page for your notes. 68 Pioneer Absolute Return Bond Fund | Semiannual Report | 2/28/15 How to Contact Pioneer We are pleased to offer a variety of convenient ways for you to contact us for assistance or information. Call us for: -------------------------------------------------------------------------------- Account Information, including existing accounts, new accounts, prospectuses, applications and service forms 1-800-225-6292 FactFone(SM) for automated fund yields, prices, account information and transactions 1-800-225-4321 Retirement plans information 1-800-622-0176 Write to us: -------------------------------------------------------------------------------- PIMSS, Inc. P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address ask.pioneer@pioneerinvestments.com (for general questions about Pioneer only) Visit our web site: us.pioneerinvestments.com This report must be preceded or accompanied by a prospectus. The Fund files a complete schedule of investments with the Securities and Exchange Commission for the first and third quarters for each fiscal year on Form N-Q. Shareholders may view the filed Form N-Q by visiting the Commission's web site at www.sec.gov. The filed form may also be viewed and copied at the Commission's Public Reference Room in Washington, DC. Information regarding the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 us.pioneerinvestments.com Securities offered through Pioneer Funds Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2015 Pioneer Investments 27690-01-0415 Pioneer Global Equity Fund -------------------------------------------------------------------------------- Semiannual Report | February 28, 2015 -------------------------------------------------------------------------------- Ticker Symbols: Class A GLOSX Class C GCSLX Class K PGEKX Class Y PGSYX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents President's Letter 2 Portfolio Management Discussion 4 Portfolio Summary 8 Prices and Distributions 9 Performance Update 10 Comparing Ongoing Fund Expenses 14 Schedule of Investments 16 Financial Statements 24 Notes to Financial Statements 32 Approval of Investment Advisory Agreement 45 Trustees, Officers and Service Providers 50 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 1 President's Letter Dear Shareowner, Today's market environment presents numerous opportunities as well as challenges for investors. A disparate global economic landscape has formed, with the U.S. facing prospects for continued growth, while questions abound regarding the outlook for other regions. Employment, household income, and corporate profits have been rising in the U.S. and inflation pressures remain low. However, many countries across Europe as well as Japan face muted growth. In addition, a variety of factors have clouded the outlook for countries such as Russia and Brazil and China's investment-driven economy continues to slow. Monetary policies of major central banks are diverging, reflecting different economic conditions. With the U.S. economy no longer in need of extraordinary stimulus, the Federal Reserve Board may be closer to raising short-term interest rates. Conversely, the European Central Bank and the Bank of Japan are likely to be adding, not removing, stimulus. While we anticipate continued growth for the U.S., the outlook is far from certain, nor is the outlook for other regions necessarily dire. It remains to be seen how weakness outside the U.S. will affect global growth and whether easing monetary policies in other regions will spur an economic recovery. While these economic conditions may lead to increasing volatility in 2015, we believe the opportunity for investors to earn attractive returns will persist. However, in an environment where interest rates remain low and equity valuations have been buoyed by an extended bull market, we believe it is imperative investors adhere to a disciplined investment approach that is consistent with one's goals and objectives, being mindful of the tradeoff between risk and return. Since 1928 Pioneer's investment professionals have been focused on identifying and capitalizing on investment opportunities that present themselves in a variety of ever changing market conditions, including those we face today. We seek returns consistent with our strategies' stated style and 2 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 objectives and consistent with our shareholders' expectations, regardless of market conditions. We believe our shareowners benefit from the experience and tenure of our investment teams, the insights generated from extensive research resources and a commitment to prudent risk management that seeks to mitigate downside and preserve returns over time. We encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short- and long-term goals, and to implement such a plan in a disciplined manner, as we do when deploying strategies on behalf of our shareowners. We greatly appreciate your trust in us in the past and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones President and CEO Pioneer Investment Management USA, Inc. Any information in this shareowner report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. These statements should not be relied upon for any other purposes. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 3 Portfolio Management Discussion | 2/28/15 In the following interview, portfolio managers Marco Pirondini and David Glazer discuss the factors that influenced the performance of Pioneer Global Equity Fund during the six-month period ended February 28, 2015. Mr. Pirondini, Head of Equities, U.S., Executive Vice President and a portfolio manager at Pioneer, and Mr. Glazer, a Senior Vice President and a portfolio manager at Pioneer, are responsible for the day-to-day management of the Fund. Q How did the Fund perform during the six-month period ended February 28, 2015? A Pioneer Global Equity Fund's Class A shares returned 1.99% at net asset value during the six-month period ended February 28, 2015, while the Fund's benchmark, the Morgan Stanley Capital International (MSCI) World ND Index (the MSCI Index)(1), returned 2.14%. During the same period, the average return of the 62 mutual funds in Lipper's Global Large-Cap Core Funds category was 0.67%, and the average return of the 1,225 mutual funds in Morningstar's World Stock Funds category was 0.98%. Q How would you characterize the investment environment in the global equity markets during the six-month period ended February 28, 2015? A It was a period when U.S. markets performed well and most other global markets struggled. The global economy slowed somewhat during the past six months, but continued to grow, led by the United States. The slight dip in the overall global economy was broad-based outside the United States, as Europe surprisingly struggled and Japan's economy endured a reversal based in part on a significant tax increase. Emerging markets also continued to face difficulties. In addition, due to a significant surplus in crude oil supply and a decline in demand, energy prices plummeted. That development negatively affected earnings and stock prices for companies in the energy sector, which represent approximately 10% of all global stocks. (1) The MSCI information may only be used for your internal use, may not be reproduced or redisseminated in any form and may not be used as a basis for or a component of any financial instruments or products or indices. None of the MSCI information is intended to constitute investment advice or a recommendation to make (or refrain from making) any kind of investment decision and may not be relied on as such. Historical data and analysis should not be taken as an indication or guarantee of any future performance analysis, forecast or prediction. The MSCI information is provided on an "as is" basis and the user of this information assumes the entire risk of any use made of this information. MSCI, each of its affiliates and each other person involved in or related to compiling, computing or creating any MSCI information (collectively, the "MSCI Parties") expressly disclaims all warranties (including, without limitation, any warranties of originality, accuracy, completeness, timeliness, non-infringement, merchantability and fitness for a particular purpose) with respect to this information. Without limiting any of the foregoing, in no event shall any MSCI Party have any liability for any direct, indirect, special, incidental, punitive, consequential (including, without limitation, lost profits) or any other damages. 4 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Significant geopolitical tensions also complicated matters, but despite the difficulties, global stock markets managed to produce a slightly positive return for the period. Q Would you review the Fund's overall investment approach? A When picking investments for the portfolio we examine mid- and large- capitalization stocks worldwide, including those located in the emerging markets. From there, we build a diversified* portfolio. We look for stocks that we think can provide "growth at a reasonable price," and so there is a strong value component to our analysis. We seek to invest the Fund in companies that are not only benefiting from operating efficiencies as reflected in factors such as increased market share and revenues, but that are also employing their capital efficiently. In particular, we emphasize strong free cash flow, because that provides companies with the flexibility to make share buybacks, reinvest in their businesses, make acquisitions, and raise dividends**. We also look for stocks with attractive dividend yields as well as those trading at below-market valuations. Finally, we attempt to assess not only the potential price gains for each stock, but also the stock's potential for a decline in price if circumstances become unfavorable. We prefer stocks with the highest potential upside, relative to their downside. Q Which of your investment decisions or individual portfolio holdings either aided or detracted from the Fund's performance relative to the MSCI Index during the six-month period ended February 28, 2015? A A portfolio underweight to consumer staples detracted from the Fund's benchmark-relative performance during the period, as did overall stock selection results. At the sector level, stock selection results in technology and consumer discretionary hurt the Fund's relative returns, though the majority of the individual securities which detracted from benchmark-relative performance during the period came from the struggling energy sector. The underperforming Fund holdings in energy included Halliburton, Royal Dutch Shell, EOG Resources and Whiting Petroleum. (Halliburton, EOG Resources and Whiting Petroleum were sold from the portfolio before period end.) On the positive side, stock selection in consumer staples, health care, financials and industrials contributed to the Fund's relative returns during the six-month period. With regard to allocation, the portfolio's underweight positions in Europe and in energy stocks as compared with the benchmark * Diversification does not assure a profit nor protect against loss in a declining market. ** Dividends are not guaranteed. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 5 helped the Fund's relative performance. In addition, portfolio overweights in health care and technology, both of which were strong market performers during the period, added to the Fund's benchmark-relative returns. With regard to individual portfolio securities, the largest contributions to the Fund's relative performance came from a group of health care and health care-related stocks, including CVS Health, Shire and Cardinal Health. All three stocks benefited from improving business dynamics and attractive equity valuations, and the fact that their businesses were less affected by recent bouts of global currency fluctuation. Additionally, the Fund benefited from its positions in American Airlines, which was helped by internal restructuring and lower fuel prices; and in Yahoo!, which profited from its stake in Alibaba. Q Did you employ derivatives in managing the Fund during the six-month period ended February 28, 2015, and did those investments have an effect on performance? A Over the six-month period, we did utilize some derivative investments in managing the Fund. The derivatives had a slightly positive effect on performance. Q What is your outlook and how is it reflected in the Fund's current positioning? A Based on a combination of lower energy prices and stimulative monetary policies from central banks in Europe and many emerging market countries, we look for the global economy to bounce back. Lower oil prices should, however, continue to exert downward pressure on corporate earnings within the energy sector. Ongoing currency volatility may also continue to create difficulties for global companies. At this stage of the economic recovery, after a number of years of strong equity returns, we believe that stocks have generally reached fair value. We therefore believe that equity returns in 2015 will be more in line with historical levels as compared with the exceptionally high returns experienced in recent years. In terms of the Fund's geographic allocation, we have sought to benefit from an anticipated pickup in the global economy by adding some portfolio holdings in cyclical companies outside the United States, while reducing the Fund's U.S. positions to a slight underweight relative to the MSCI Index. The Fund's largest geographic overweight continues to be in Japan, which has recently performed very well in U.S. dollar terms. With regard to sectors, we continue to underweight the Fund in energy, while overweighting health care, technology and consumer discretionary. 6 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Please refer to the Schedule of Investments on pages 16-23 for a full listing of fund securities. Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates, economic, and political conditions. The Fund is subject to currency risk, meaning that the Fund could experience losses based on changes in the exchange rate between non-U.S. currencies and the U.S. dollar. Investments in small and mid-sized companies may offer the potential for higher returns, but are also subject to greater short-term price fluctuations than larger, more established companies. When interest rates rise, the prices of fixed-income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed-income securities in the Fund will generally rise. The Fund may use derivatives, such as options, futures, inverse floating rate obligations, swaps, and others, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on Fund performance. Derivatives may have a leveraging effect on the Fund. At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making it more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. These risks may increase share price volatility. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Pioneer Investments for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is no guarantee of future results. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 7 Portfolio Summary | 2/28/15 Sector Distribution -------------------------------------------------------------------------------- (As a percentage of long-term holdings) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] Information Technology 21.4% Health Care 20.0% Financials 15.2% Consumer Discretionary 14.5% Industrials 13.5% Consumer Staples 4.7% Energy 3.9% Materials 3.6% Telecommunication Services 3.2% Geographical Distribution -------------------------------------------------------------------------------- (As a percentage of long-term holdings) [THE FOLLOWING DATA WAS REPRESENTED AS A BAR CHART IN THE PRINTED MATERIAL] United States 55.2% Japan 18.8% Switzerland 7.2% United Kingdom 5.1% Ireland 3.0% Netherlands 1.8% Sweden 1.4% Hong Kong 1.2% Other (individually less than 1%) 6.3% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of long-term holdings)* 1. Microsoft Corp. 4.63% -------------------------------------------------------------------------------- 2. Apple, Inc. 4.29 -------------------------------------------------------------------------------- 3. CVS Health Corp. 3.50 -------------------------------------------------------------------------------- 4. Shire Plc 3.33 -------------------------------------------------------------------------------- 5. Cardinal Health, Inc. 3.25 -------------------------------------------------------------------------------- 6. Novartis AG 3.03 -------------------------------------------------------------------------------- 7. Nippon Telegraph & Telephone Corp. 2.75 -------------------------------------------------------------------------------- 8. Mitsubishi UFJ Financial Group, Inc. 2.58 -------------------------------------------------------------------------------- 9. Roche Holding AG 2.56 -------------------------------------------------------------------------------- 10. Sekisui Chemical Co., Ltd. 2.41 -------------------------------------------------------------------------------- * This list excludes temporary cash investments and derivative instruments. The portfolio is actively managed, and current holdings may be different. The holdings listed should not be considered recommendations to buy or sell any security listed. 8 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Prices and Distributions | 2/28/15 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 2/28/15 8/31/14 -------------------------------------------------------------------------------- A $13.94 $14.05 -------------------------------------------------------------------------------- C $13.70 $13.78 -------------------------------------------------------------------------------- Y $13.98 $14.12 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 2/28/15 12/31/14* -------------------------------------------------------------------------------- K $13.95 $13.51 -------------------------------------------------------------------------------- Distributions per Share: 9/1/14-2/28/15 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.3828 $ -- $ -- -------------------------------------------------------------------------------- C $0.3047 $ -- $ -- -------------------------------------------------------------------------------- K $ -- $ -- $ -- -------------------------------------------------------------------------------- Y $0.4492 $ -- $ -- -------------------------------------------------------------------------------- The Morgan Stanley Capital International (MSCI) World ND Index is an unmanaged measure of the performance of stock markets in the developed world. Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. It is not possible to invest directly in an index. The index defined here pertains to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts on pages 10-13. * Share class commenced operations on December 31, 2014. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 9 Performance Update | 2/28/15 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer Global Equity Fund at public offering price during the periods shown, compared to that of the Morgan Stanley Capital International (MSCI) World ND Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Net Public Asset Offering MSCI Value Price World Period (NAV) (POP) ND Index -------------------------------------------------------------------------------- Life-of-Class 12/15/2005 5.94% 5.26% 5.90% 5 Years 11.15 9.85 11.69 1 Year 9.06 2.80 7.87 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.61% 1.35% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Global MSCI World Equity Fund ND Index 12/31/2005 $ 9,425 $ 10,000 2/28/2006 $ 9,840 $ 10,431 2/28/2007 $ 11,516 $ 12,085 2/29/2008 $ 11,861 $ 12,021 2/28/2009 $ 6,400 $ 6,357 2/28/2010 $ 9,461 $ 9,809 2/28/2011 $ 10,983 $ 11,934 2/29/2012 $ 10,795 $ 11,732 2/28/2013 $ 11,870 $ 12,987 2/28/2014 $ 14,717 $ 15,803 2/28/2015 $ 16,050 $ 17,046 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. POP returns reflect deduction of maximum 5.75% sales charge. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class A shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 10 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Performance Update | 2/28/15 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C shares of Pioneer Global Equity Fund during the periods shown, compared to that of the Morgan Stanley Capital International (MSCI) World ND Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- MSCI If If World Period Held Redeemed ND Index -------------------------------------------------------------------------------- Life-of-Class 12/15/2005 5.00% 5.00% 5.90% 5 Years 10.17 10.17 11.69 1 Year 8.19 8.19 7.87 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.40% 2.25% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Global MSCI World Equity Fund ND Index 12/31/2005 $ 10,000 $ 10,000 2/28/2006 $ 10,420 $ 10,431 2/28/2007 $ 12,077 $ 12,085 2/29/2008 $ 12,334 $ 12,021 2/28/2009 $ 6,599 $ 6,357 2/28/2010 $ 9,667 $ 9,809 2/28/2011 $ 11,130 $ 11,934 2/29/2012 $ 10,829 $ 11,732 2/28/2013 $ 11,802 $ 12,987 2/28/2014 $ 14,502 $ 15,803 2/28/2015 $ 15,690 $ 17,046 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class C shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 11 Performance Update | 2/28/15 Class K Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class K shares of Pioneer Global Equity Fund during the periods shown, compared to that of the Morgan Stanley Capital International (MSCI) World ND Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- MSCI Net Asset World Period Value (NAV) ND Index -------------------------------------------------------------------------------- Life-of-Class 12/15/2005 5.95% 5.90% 5 Years 11.17 11.69 1 Year 9.14 7.87 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.00% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Global MSCI World Equity Fund ND Index 12/31/2005 $ 9,425 $ 10,000 2/28/2006 $ 9,840 $ 10,431 2/28/2007 $ 11,516 $ 12,085 2/29/2008 $ 11,861 $ 12,021 2/28/2009 $ 6,400 $ 6,357 2/28/2010 $ 9,461 $ 9,809 2/28/2011 $ 10,983 $ 11,934 2/29/2012 $ 10,795 $ 11,732 2/28/2013 $ 11,870 $ 12,987 2/28/2014 $ 14,717 $ 15,803 2/28/2015 $ 16,061 $ 17,046 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. The performance shown for Class K shares for the period prior to the commencement of operations of Class K shares on December 31, 2014, is the net asset value performance of the Fund's Class A shares, which has not been restated to reflect any differences in expenses, including Rule 12b-1 fees applicable to Class A shares. Since fees for Class A shares generally are higher than those of Class K shares, the performance of Class K shares prior to their inception would have been higher than the performance shown. For the period beginning December 31, 2014, the actual performance of Class K shares is reflected. Class K shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 12 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Performance Update | 2/28/15 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer Global Equity Fund during the periods shown, compared to that of the Morgan Stanley Capital International (MSCI) World ND Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- MSCI Net Asset World Period Value (NAV) ND Index -------------------------------------------------------------------------------- Life-of-Class 12/15/2005 6.29% 5.90% 5 Years 11.68 11.69 1 Year 9.55 7.87 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.00% 0.85% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer Global MSCI World Equity Fund ND Index 12/31/2005 $ 5,000,000 $ 5,000,000 2/28/2006 $ 5,220,220 $ 5,215,491 2/28/2007 $ 6,109,747 $ 6,042,565 2/29/2008 $ 6,292,650 $ 6,010,513 2/28/2009 $ 3,395,293 $ 3,178,376 2/28/2010 $ 5,051,534 $ 4,904,248 2/28/2011 $ 5,896,117 $ 5,967,213 2/29/2012 $ 5,817,526 $ 5,866,078 2/28/2013 $ 6,432,100 $ 6,493,369 2/28/2014 $ 8,013,032 $ 7,901,247 2/28/2015 $ 8,777,885 $ 8,522,870 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Performance shown for periods prior to the inception of the Fund's Class Y shares on December 31, 2008, is the NAV performance of the Fund's Class A shares. The performance does not reflect differences in expenses, including the Rule 12b-1 fees applicable to Class A shares. Since fees for Class A shares are generally higher than those of Class Y shares, the performance for Class Y shares prior to their inception would have been higher than the performance shown. For the period beginning December 31, 2008, the actual performance of Class Y shares is reflected. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class Y shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 13 Comparing Ongoing Fund Expenses As a shareowner in the Fund, you incur two types of costs: (1) ongoing costs, including management fees, distribution and/or service (12b-1) fees, and other Fund expenses; and (2) transaction costs, including sales charges (loads) on purchase payments and redemption fees. This example is intended to help you understand your ongoing expenses (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 at the beginning of the Fund's latest six-month period and held throughout the six months. Using the Tables -------------------------------------------------------------------------------- Actual Expenses The first table below provides information about actual account values and actual expenses. You may use the information in this table, together with the amount you invested, to estimate the expenses that you paid over the period as follows: (1) Divide your account value by $1,000 Example: an $8,600 account value (divided by) $1,000 = 8.6 (2) Multiply the result in (1) above by the corresponding share class's number in the third row under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. Expenses Paid on a $1,000 Investment in Pioneer Global Equity Fund Based on actual returns from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C K Y -------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 $1,000.00 Value on 9/1/14* -------------------------------------------------------------------------------- Ending Account $1,019.90 $1,016.70 $1,028.10 $1,022.50 Value on 2/28/15 -------------------------------------------------------------------------------- Expenses Paid $ 6.81 $ 10.75 $ 1.77 $ 4.31 During Period** -------------------------------------------------------------------------------- * Period begins December 31, 2014 (commencement of operations) for Class K shares. ** Expenses are equal to the Fund's annualized net expense ratio plus the expense ratios of the underlying funds. These combined totals were 1.36%, 2.15%, 1.06%, and 0.86% for Class A, Class C, Class K, and Class Y shares, respectively. These combined ratios were multiplied by the average account value over the period and then multiplied by 181/365 (60/365 for Class K shares) (to reflect the one-half year period). 14 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) or redemption fees that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer Global Equity Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C K Y -------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 $1,000.00 Value on 9/1/14* -------------------------------------------------------------------------------- Ending Account $1,018.05 $1,014.13 $1,006.48 $1,020.53 Value on 2/28/15 -------------------------------------------------------------------------------- Expenses Paid $ 6.80 $ 10.74 $ 1.75 $ 4.31 During Period** -------------------------------------------------------------------------------- * Period begins December 31, 2014 (commencement of operations) for Class K shares. ** Expenses are equal to the Fund's annualized net expense ratio plus the expense ratios of the underlying funds. These combined totals were 1.36%, 2.15%, 1.06%, and 0.86% for Class A, Class C, Class K, and Class Y shares, respectively. These combined ratios were multiplied by the average account value over the period and then multiplied by 181/365 (60/365 for Class K shares) (to reflect the one-half year period). Pioneer Global Equity Fund | Semiannual Report | 2/28/15 15 Schedule of Investments | 2/28/15 (unaudited) -------------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------------- COMMON STOCKS -- 96.3% ENERGY -- 3.8% Integrated Oil & Gas -- 1.8% 91,567 Royal Dutch Shell Plc $ 2,995,342 -------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 2.0% 18,127 EOG Resources, Inc. $ 1,626,354 64,538 Southwestern Energy Co.* 1,618,613 ------------- $ 3,244,967 ------------- Total Energy $ 6,240,309 -------------------------------------------------------------------------------------- MATERIALS -- 3.5% Fertilizers & Agricultural Chemicals -- 1.6% 7,145 Monsanto Co. $ 860,472 5,070 Syngenta AG 1,786,884 ------------- $ 2,647,356 -------------------------------------------------------------------------------------- Specialty Chemicals -- 1.6% 43,000 Nitto Denko Corp. $ 2,726,688 -------------------------------------------------------------------------------------- Construction Materials -- 0.1% 138,300 Indocement Tunggal Prakarsa Tbk PT $ 257,340 -------------------------------------------------------------------------------------- Steel -- 0.2% 134,208 Fortescue Metals Group, Ltd. $ 260,347 ------------- Total Materials $ 5,891,731 -------------------------------------------------------------------------------------- CAPITAL GOODS -- 9.1% Aerospace & Defense -- 2.3% 10,736 Precision Castparts Corp. $ 2,322,197 12,139 United Technologies Corp. 1,479,865 ------------- $ 3,802,062 -------------------------------------------------------------------------------------- Electrical Components & Equipment -- 1.7% 38,880 Eaton Corp., Plc $ 2,760,869 -------------------------------------------------------------------------------------- Heavy Electrical Equipment -- 2.2% 49,350 Alstom SA $ 1,628,695 176,000 Mitsubishi Electric Corp. 2,063,954 ------------- $ 3,692,649 -------------------------------------------------------------------------------------- Industrial Machinery -- 2.9% 42,280 Ingersoll-Rand Plc $ 2,840,793 9,061 Parker-Hannifin Corp. 1,111,694 433,000 Sarine Technologies, Ltd. 864,422 ------------- $ 4,816,909 ------------- Total Capital Goods $ 15,072,489 -------------------------------------------------------------------------------------- COMMERCIAL SERVICES & SUPPLIES -- 1.2% Human Resource & Employment Services -- 1.2% 15,245 Towers Watson & Co. $ 2,004,718 ------------- Total Commercial Services & Supplies $ 2,004,718 -------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 16 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------------- TRANSPORTATION -- 2.8% Airlines -- 2.8% 66,026 American Airlines Group, Inc. $ 3,162,645 53,973 EasyJet Plc 1,441,199 ------------- $ 4,603,844 ------------- Total Transportation $ 4,603,844 -------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 5.9% Tires & Rubber -- 1.8% 79,500 Bridgestone Corp. $ 3,047,635 -------------------------------------------------------------------------------------- Automobile Manufacturers -- 4.1% 17,050 Daimler AG $ 1,648,705 112,200 Mazda Motor Corp. 2,400,732 55,491 Tata Motors, Ltd. 517,809 90,824 Tata Motors, Ltd. (Class A DVR) 526,967 24,500 Toyota Motor Corp. 1,652,584 ------------- $ 6,746,797 ------------- Total Automobiles & Components $ 9,794,432 -------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 2.7% Homebuilding -- 2.3% 300,000 Sekisui Chemical Co., Ltd. $ 3,851,000 -------------------------------------------------------------------------------------- Textiles -- 0.4% 456,000 Pacific Textiles Holdings, Ltd. $ 681,731 ------------- Total Consumer Durables & Apparel $ 4,532,731 -------------------------------------------------------------------------------------- CONSUMER SERVICES -- 1.8% Hotels, Resorts & Cruise Lines -- 0.9% 18,644 Marriott International, Inc. $ 1,549,316 -------------------------------------------------------------------------------------- Restaurants -- 0.9% 135,215 Domino's Pizza Group Plc $ 1,506,993 ------------- Total Consumer Services $ 3,056,309 -------------------------------------------------------------------------------------- MEDIA -- 1.8% Broadcasting -- 1.4% 38,400 CBS Corp. (Class B) $ 2,269,440 -------------------------------------------------------------------------------------- Movies & Entertainment -- 0.4% 10,877 Viacom, Inc. (Class B) $ 760,737 ------------- Total Media $ 3,030,177 -------------------------------------------------------------------------------------- RETAILING -- 1.7% Department Stores -- 0.7% 19,560 Macy's, Inc. $ 1,246,363 -------------------------------------------------------------------------------------- Apparel Retail -- 1.0% 15,061 Ross Stores, Inc. $ 1,593,604 ------------- Total Retailing $ 2,839,967 -------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 17 Schedule of Investments | 2/28/15 (unaudited) (continued) -------------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 3.9% Drug Retail -- 3.4% 53,894 CVS Health Corp. $ 5,597,970 -------------------------------------------------------------------------------------- Food Retail -- 0.5% 10,368 Walgreens Boots Alliance, Inc. $ 861,373 ------------- Total Food & Staples Retailing $ 6,459,343 -------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 0.7% Brewers -- 0.7% 15,667 Molson Coors Brewing Co. (Class B) $ 1,188,969 ------------- Total Food, Beverage & Tobacco $ 1,188,969 -------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 3.7% Health Care Equipment -- 0.6% 7,510 Edwards Lifesciences Corp.* $ 998,980 -------------------------------------------------------------------------------------- Health Care Distributors -- 3.1% 59,153 Cardinal Health, Inc. $ 5,204,872 ------------- Total Health Care Equipment & Services $ 6,203,852 -------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 15.6% Biotechnology -- 0.5% 2,131 Biogen Idec, Inc.* $ 872,836 -------------------------------------------------------------------------------------- Pharmaceuticals -- 14.4% 7,353 Jazz Pharmaceuticals Plc* $ 1,250,672 29,464 Johnson & Johnson 3,020,355 6,320 Mallinckrodt Plc* 737,670 47,418 Novartis AG 4,853,323 98,206 Pfizer, Inc. 3,370,430 15,134 Roche Holding AG 4,101,179 8,041 Salix Pharmaceuticals, Ltd.* 1,264,045 65,913 Shire Plc 5,328,713 ------------- $ 23,926,387 -------------------------------------------------------------------------------------- Life Sciences Tools & Services -- 0.7% 8,610 Thermo Fisher Scientific, Inc. $ 1,119,300 ------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 25,918,523 -------------------------------------------------------------------------------------- BANKS -- 7.6% Diversified Banks -- 6.6% 21,112 Bank of America Corp. $ 333,781 2,292,000 Industrial & Commercial Bank of China, Ltd. 1,672,294 19,585 JPMorgan Chase & Co. 1,200,169 634,500 Mitsubishi UFJ Financial Group, Inc. 4,129,555 65,138 Nordea Bank AB 878,466 32,900 Sumitomo Mitsui Financial Group, Inc. 1,309,825 55,873 Swedbank AB 1,452,274 ------------- $ 10,976,364 -------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 18 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------------- Regional Banks -- 1.0% 17,592 The PNC Financial Services Group, Inc. $ 1,617,760 ------------- Total Banks $ 12,594,124 -------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 6.0% Specialized Finance -- 2.2% 7,040 Intercontinental Exchange, Inc. $ 1,656,934 39,348 The NASDAQ OMX Group, Inc. 1,973,696 ------------- $ 3,630,630 -------------------------------------------------------------------------------------- Consumer Finance -- 2.1% 56,478 Discover Financial Services, Inc. $ 3,444,028 -------------------------------------------------------------------------------------- Asset Management & Custody Banks -- 0.5% 94,443 Apollo Investment Corp. $ 735,711 13,129 TriplePoint Venture Growth BDC Corp. 195,228 ------------- $ 930,939 -------------------------------------------------------------------------------------- Investment Banking & Brokerage -- 1.2% 54,768 Morgan Stanley Co. $ 1,960,147 ------------- Total Diversified Financials $ 9,965,744 -------------------------------------------------------------------------------------- INSURANCE -- 0.5% Property & Casualty Insurance -- 0.5% 7,216 ACE, Ltd. $ 822,696 ------------- Total Insurance $ 822,696 -------------------------------------------------------------------------------------- REAL ESTATE -- 0.6% Diversified Real Estate Activities -- 0.6% 195,800 Leopalace21 Corp. $ 1,074,437 ------------- Total Real Estate $ 1,074,437 -------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 9.7% Internet Software & Services -- 3.7% 57,401 eBay, Inc.* $ 3,324,092 64,959 Yahoo!, Inc.* 2,876,385 ------------- $ 6,200,477 -------------------------------------------------------------------------------------- Data Processing & Outsourced Services -- 1.0% 6,022 Visa, Inc. $ 1,633,829 -------------------------------------------------------------------------------------- Systems Software -- 4.5% 168,801 Microsoft Corp. $ 7,401,929 -------------------------------------------------------------------------------------- Home Entertainment Software -- 0.5% 83,900 Nexon Co., Ltd. $ 868,570 ------------- Total Software & Services $ 16,104,805 -------------------------------------------------------------------------------------- TECHNOLOGY HARDWARE & EQUIPMENT -- 10.1% Communications Equipment -- 1.0% 22,127 Qualcomm, Inc. $ 1,604,429 -------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 19 Schedule of Investments | 2/28/15 (unaudited) (continued) -------------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------------- Computer Storage & Peripherals -- 4.1% 53,413 Apple, Inc. $ 6,861,434 -------------------------------------------------------------------------------------- Technology Hardware Storage & Peripherals -- 1.8% 76,662 NetApp, Inc. $ 2,962,986 -------------------------------------------------------------------------------------- Electronic Equipment Manufacturers -- 1.8% 129,000 Hitachi, Ltd. $ 882,738 1,749,000 PAX Global Technology, Ltd.* 1,593,252 444,000 Wasion Group Holdings, Ltd. 440,004 ------------- $ 2,915,994 -------------------------------------------------------------------------------------- Electronic Components -- 1.1% 14,400 Murata Manufacturing Co., Ltd. $ 1,776,355 -------------------------------------------------------------------------------------- Electronic Manufacturing Services -- 0.3% 95,000 Global Display Co., Ltd. $ 590,145 ------------- Total Technology Hardware & Equipment $ 16,711,343 -------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.9% Semiconductors -- 0.9% 501,000 Advanced Semiconductor Engineering, Inc. $ 673,983 224,000 Transcend Information, Inc. 736,625 ------------- $ 1,410,608 ------------- Total Semiconductors & Semiconductor Equipment $ 1,410,608 -------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 2.7% Integrated Telecommunication Services -- 2.7% 71,000 Nippon Telegraph & Telephone Corp. $ 4,404,937 ------------- Total Telecommunication Services $ 4,404,937 -------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (Cost $136,920,609) $ 159,926,088 -------------------------------------------------------------------------------------- TOTAL INVESTMENT IN SECURITIES -- 96.3% (Cost $136,920,609) (a) (b) $ 159,926,088 -------------------------------------------------------------------------------------- OTHER ASSETS & LIABILITIES -- 3.7% $ 6,155,080 -------------------------------------------------------------------------------------- TOTAL NET ASSETS -- 100.0% $ 166,081,168 ====================================================================================== * Non-income producing security. DVR Differential Voting Rights. (a) At February 28, 2015, the net unrealized appreciation on investments based on cost for federal income tax purposes of $137,083,768 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $ 25,177,695 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (2,335,375) ------------- Net unrealized appreciation $ 22,842,320 ============= The accompanying notes are an integral part of these financial statements. 20 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 (b) Distributions of investments by country of issue, as a percentage of total investment in securities (excluding temporary cash investments), is as follows: United States 55.2% Japan 18.8% Switzerland 7.2% United Kingdom 5.1% Ireland 3.0% Netherlands 1.8% Sweden 1.4% Hong Kong 1.2% Other (individually less than 1%) 6.3% ----- 100.0% ===== Purchases and sales of securities (excluding temporary cash investments) for the six months ended February 28, 2015 aggregated $87,400,903 and $86,434,299, respectively. TOTAL RETURN SWAP AGREEMENTS -------------------------------------------------------------------------------------- Obligation Net Notional Pay/ Entity/ Expiration Unrealized Principal ($) Counterparty Receive Index Coupon Date Appreciation -------------------------------------------------------------------------------------- JPY (534,616,880) Citibank NA Pay JPX-NIKKEI 1M Libor 6/10/15 $339,102 INDEX 400 +53 bps NOTE: Principal amounts are denominated in U.S. Dollars unless otherwise noted: JPY Japanese Yen Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below. Level 1 -- quoted prices in active markets for identical securities. Level 2 -- other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.) See Notes to Financial Statements -- Note 1A. Level 3 -- significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments) See Notes to Financial Statements -- Note 1A. Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued using fair value methods (other than prices supplied by independent pricing services or broker-dealers) as Level 3. See Notes to Financial Statements -- Note 1A. The accompanying notes are an integral part of these financial statements. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 21 Schedule of Investments | 2/28/15 (unaudited) (continued) The following is a summary of the inputs used as of February 28, 2015, in valuing the Fund's investments: -------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------------------- Common Stocks Energy Integrated Oil & Gas $ -- $ 2,995,342 $ -- $ 2,995,342 Materials Fertilizers & Agricultural Chemicals 860,472 1,786,884 -- 2,647,356 Specialty Chemicals -- 2,726,688 -- 2,726,688 Construction Materials -- 257,340 -- 257,340 Steel -- 260,347 -- 260,347 Capital Goods Heavy Electrical Equipment -- 3,692,649 -- 3,692,649 Industrial Machinery 3,952,487 864,422 -- 4,816,909 Transportation Airlines 3,162,645 1,441,199 -- 4,603,844 Automobiles & Components Tires & Rubber -- 3,047,635 -- 3,047,635 Automobile Manufacturers -- 6,746,797 -- 6,746,797 Consumer Durables & Apparel Homebuilding -- 3,851,000 -- 3,851,000 Textiles -- 681,731 -- 681,731 Consumer Services Restaurants -- 1,506,993 -- 1,506,993 Pharmaceuticals, Biotechnology & Life Sciences Pharmaceuticals 9,643,172 14,283,215 -- 23,926,387 Banks Diversified Banks 1,533,950 9,442,414 -- 10,976,364 Real Estate Diversified Real Estate Activities -- 1,074,437 -- 1,074,437 Software & Services Home Entertainment Software -- 868,570 -- 868,570 Technology Hardware & Equipment Electronic Equipment Manufacturers -- 2,915,994 -- 2,915,994 Electronic Components -- 1,776,355 -- 1,776,355 Electronic Manufacturing Services -- 590,145 -- 590,145 Semiconductors & Semiconductor Equipment Semiconductors -- 1,410,608 -- 1,410,608 Telecommunication Services Integrated Telecommunication Services -- 4,404,937 -- 4,404,937 All Other Common Stocks 74,147,660 -- -- 74,147,660 -------------------------------------------------------------------------------------------- Total $ 93,300,386 $66,625,702 $ -- $159,926,088 ============================================================================================ The accompanying notes are an integral part of these financial statements. 22 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------------------- Other Financial Instruments: Net Unrealized Appreciation On Forward Foreign Currency Contracts $ -- $ 203 $ -- $ 203 Net Unrealized Depreciation On Forward Foreign Currency Contracts -- (115) -- (115) Net Unrealized Depreciation On Futures Contracts (15,213) -- -- (15,213) Net Unrealized Appreciation On Total Return Swap 339,102 -- -- 339,102 -------------------------------------------------------------------------------------------- Total other financial instruments: $ 323,889 $ 88 $ -- $323,977 ============================================================================================ During the six months ended February 28, 2015, there were no transfers between Levels 1, 2 and 3. The following is a summary of the fair valuation of certain Fund's assets and liabilities as of February 28, 2015. -------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------------------- Assets: Foreign currencies, at value $ -- $ 727,829 $ -- $ 727,829 Futures collateral 166,100 -- -- 166,100 Swap collateral -- 375,000 -- 375,000 Variation margin for swap contracts -- (29) -- (29) Liabilities: Variation margin for futures contracts 8,126 -- -- 8,126 -------------------------------------------------------------------------------------------- Total: $ 174,226 $1,102,800 $ -- $1,277,026 ============================================================================================ The accompanying notes are an integral part of these financial statements. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 23 Statement of Assets and Liabilities | 2/28/15 (unaudited) ASSETS: Investment in securities (cost $136,920,609) $159,926,088 Cash 3,656,822 Foreign currencies, at value (cost $729,289) 727,829 Futures collateral 166,100 Swap collateral 375,000 Receivables -- Investment securities sold 2,386,297 Fund shares sold 1,067,398 Dividends and foreign taxes withheld 454,670 Due from Pioneer Investment Management, Inc. 22,180 Swap receivable 180,625 Variation margin for futures contracts 8,126 Net unrealized appreciation on forward foreign currency contracts 203 Net unrealized appreciation on total return swap 339,102 Other 47,246 --------------------------------------------------------------------------------------- Total assets $169,357,686 ======================================================================================= LIABILITIES: Payables -- Investment securities purchased $ 2,847,148 Fund shares repurchased 224,410 Net unrealized depreciation on futures contracts 15,212 Net unrealized depreciation on forward foreign currency contracts 115 Variation margin for swap contracts 29 Due to affiliates 50,971 Trustee fees 1,130 Accrued expenses 137,503 --------------------------------------------------------------------------------------- Total liabilities $ 3,276,518 ======================================================================================= NET ASSETS: Paid-in capital $164,870,671 Distributions in excess of net investment income (567,526) Accumulated net realized loss on investments, futures contracts, swap contracts and foreign currency transactions (21,521,200) Net unrealized appreciation on investments 23,005,479 Net unrealized depreciation on futures contracts (15,212) Net unrealized appreciation on total return swap 339,102 Net unrealized depreciation on forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (30,146) --------------------------------------------------------------------------------------- Total net assets $166,081,168 ======================================================================================= NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $80,475,262/5,771,036 shares) $ 13.94 Class C (based on $12,473,920/910,628 shares) $ 13.70 Class K (based on $59,573,669/4,270,843 shares) $ 13.95 Class Y (based on $13,558,317/969,983 shares) $ 13.98 MAXIMUM OFFERING PRICE: Class A ($13.94 (divided by) 94.25%) $ 14.79 ======================================================================================= The accompanying notes are an integral part of these financial statements. 24 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Statement of Operations (unaudited) For the Six Months Ended 2/28/15 INVESTMENT INCOME: Dividends (net of foreign taxes withheld of $54,452) $ 1,244,574 Interest 487 -------------------------------------------------------------------------------------------------- Total investment income $1,245,061 -------------------------------------------------------------------------------------------------- EXPENSES: Management fees $ 594,136 Transfer agent fees Class A 84,797 Class B* 4,270 Class C 9,300 Class Y 262 Distribution fees Class A 95,527 Class B* 3,685 Class C 50,781 Shareholder communications expense 45,054 Administrative reimbursements 29,128 Custodian fees 16,636 Registration fees 26,405 Professional fees 34,122 Printing expense 9,990 Fees and expenses of nonaffiliated Trustees 3,123 Miscellaneous 7,902 -------------------------------------------------------------------------------------------------- Total expenses $1,015,118 Less fees waived and expenses reimbursed by Pioneer Investment Management, Inc. (114,717) -------------------------------------------------------------------------------------------------- Net expenses $ 900,401 -------------------------------------------------------------------------------------------------- Net investment income $ 344,660 -------------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FUTURES CONTRACTS, TOTAL RETURN SWAP AND FOREIGN CURRENCY TRANSACTIONS: Net realized gain (loss) on: Investments (net of foreign capital gains taxes of $81,324) $ 4,343,086 Futures contracts (119,534) Total return swap 529,248 Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (109,135) $4,643,665 -------------------------------------------------------------------------------------------------- Change in net unrealized appreciation (depreciation) on: Investments $ (1,216,230) Futures contracts 132,138 Total return swap 260,392 Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies 51,238 $ (772,462) -------------------------------------------------------------------------------------------------- Net gain on investments, futures contracts, total return swap and foreign currency transactions $3,871,203 -------------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $4,215,863 ================================================================================================== * Class B shares converted to Class A shares on November 10, 2014. The accompanying notes are an integral part of these financial statements. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 25 Statements of Changes in Net Assets -------------------------------------------------------------------------------------------------- Six Months Ended 2/28/15 Year Ended (unaudited) 8/31/14 -------------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $ 344,660 $ 3,470,519 Net realized gain on investments, futures contracts, total return swap, written options, and foreign currency transactions 4,643,665 21,338,272 Change in net unrealized appreciation (depreciation) on investments, futures contracts, total return swap and foreign currency transactions (772,462) 11,183,577 -------------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 4,215,863 $ 35,992,368 -------------------------------------------------------------------------------------------------- DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.38 and $0.20 per share, respectively) $ (2,165,744) $ (1,074,448) Class B* ($0.00 and $0.07 per share, respectively) -- (14,217) Class C ($0.30 and $0.10 per share, respectively) (252,529) (57,648) Class Y ($0.45 and $0.25 per share, respectively) (2,272,661) (1,568,569) -------------------------------------------------------------------------------------------------- Total distributions to shareowners $ (4,690,934) $ (2,714,882) -------------------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS: Net proceeds from sale or exchange of shares $ 83,909,091 $ 14,621,595 Reinvestment of distributions 2,627,331 1,128,095 Cost of shares repurchased (77,500,864) (35,112,389) -------------------------------------------------------------------------------------------------- Net increase (decrease) in net assets resulting from Fund share transactions $ 9,035,558 $ (19,362,699) -------------------------------------------------------------------------------------------------- Net increase in net assets $ 8,560,487 $ 13,914,787 NET ASSETS: Beginning of period 157,520,681 143,605,894 -------------------------------------------------------------------------------------------------- End of period $166,081,168 $ 157,520,681 -------------------------------------------------------------------------------------------------- Undistributed (distributions in excess of) net investment income $ (567,526) $ 3,778,748 ================================================================================================== * Class B shares converted to Class A shares on November 10, 2014. The accompanying notes are an integral part of these financial statements. 26 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------------- '15 Shares '15 Amount (unaudited) (unaudited) '14 Shares '14 Amount -------------------------------------------------------------------------------------------------- Class A Shares sold 589,523 $ 8,127,014 603,313 $ 7,775,776 Reinvestment of distributions 152,838 2,090,838 81,986 1,045,326 Less shares repurchased (427,654) (5,845,929) (798,782) (10,307,534) -------------------------------------------------------------------------------------------------- Net increase (decrease) 314,707 $ 4,371,923 (113,483) $ (1,486,432) ================================================================================================== Class B* Shares sold or exchanged -- $ -- 10,609 $ 126,556 Reinvestment of distributions -- -- 1,102 13,921 Less shares repurchased (149,799) (2,044,742) (74,502) (944,641) -------------------------------------------------------------------------------------------------- Net decrease (149,799) $ (2,044,742) (62,791) $ (804,164) ================================================================================================== Class C Shares sold 350,981 $ 4,762,016 158,541 $ 2,023,027 Reinvestment of distributions 17,964 241,613 4,350 54,723 Less shares repurchased (69,852) (942,034) (137,739) (1,776,869) -------------------------------------------------------------------------------------------------- Net increase 299,093 $ 4,061,595 25,152 $ 300,881 ================================================================================================== Class K** Shares sold 4,271,583 $ 57,922,631 -- $ -- Reinvestment of distributions -- -- -- -- Less shares repurchased (740) (10,326) -- -- -------------------------------------------------------------------------------------------------- Net increase 4,270,843 $ 57,912,305 -- $ -- ================================================================================================== Class Y Shares sold 943,457 $ 13,097,430 349,580 $ 4,696,236 Reinvestment of distributions 21,508 294,880 1,106 14,125 Less shares repurchased (4,978,785) (68,657,833) (1,676,590) (22,083,345) -------------------------------------------------------------------------------------------------- Net decrease (4,013,820) $ (55,265,523) (1,325,904) $ 17,372,984) ================================================================================================== * Class B shares converted to Class A shares on November 10, 2014. ** Class K shares commenced operations on December 31, 2014. The accompanying notes are an integral part of these financial statements. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 27 Financial Highlights -------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year Year Year Year 2/28/15 Ended Ended Ended Ended Ended (unaudited) 8/31/14 8/31/13 8/31/12 8/31/11 8/31/10 -------------------------------------------------------------------------------------------------------------------------- Class A Net asset value, beginning of period $ 14.05 $ 11.31 $ 9.64 $ 9.27 $ 8.44 $ 8.56 -------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.01 $ 0.27 $ 0.15 $ 0.17 $ 0.13 $ 0.08 Net realized and unrealized gain (loss) on investments 0.26 2.67 1.68 0.33 0.76 (0.17) -------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.27 $ 2.94 $ 1.83 $ 0.50 $ 0.89 $ (0.09) -------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.38) $ (0.20) $ (0.16) $ (0.13) $ (0.06) $ (0.03) -------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.11) $ 2.74 $ 1.67 $ 0.37 $ 0.83 $ (0.12) -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 13.94 $ 14.05 $ 11.31 $ 9.64 $ 9.27 $ 8.44 ========================================================================================================================== Total return* 1.99% 26.13% 19.17% 5.50% 10.48% (1.13)% Ratio of net expenses to average net assets 1.30%** 1.30% 1.30% 1.30% 1.30% 1.30% Ratio of net investment income (loss) to average net assets 0.26%** 2.01% 1.35% 1.71% 1.23% 0.82% Portfolio turnover rate 113%** 121% 160% 152% 194% 114% Net assets, end of period (in thousands) $80,475 $76,638 $62,996 $56,970 $60,701 $61,466 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 1.48%** 1.56% 1.67% 1.72% 1.67% 1.71% Net investment income (loss) to average net assets 0.08%** 1.75% 0.98% 1.29% 0.86% 0.41% ========================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. The accompanying notes are an integral part of these financial statements. 28 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 ----------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year Year Year Year 2/28/15 Ended Ended Ended Ended Ended (unaudited) 8/31/14 8/31/13 8/31/12 8/31/11 8/31/10 ----------------------------------------------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 13.78 $ 11.11 $ 9.47 $ 9.09 $ 8.31 $ 8.48 ----------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ (0.10) $ 0.14 $ 0.05 $ 0.10 $ 0.04 $ 0.00(a) Net realized and unrealized gain (loss) on investments 0.32 2.63 1.66 0.31 0.74 (0.17) ----------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.22 $ 2.77 $ 1.71 $ 0.41 $ 0.78 $ (0.17) ----------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.30) $ (0.10) $ (0.07) $ (0.03) $ -- $ -- ----------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.08) $ 2.67 $ 1.64 $ 0.38 $ 0.78 $ (0.17) ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 13.70 $ 13.78 $ 11.11 $ 9.47 $ 9.09 $ 8.31 ============================================================================================================================= Total return* 1.67% 24.98% 18.11% 4.56% 9.39% (2.00)% Ratio of net expenses to average net assets 2.09%** 2.20% 2.20% 2.20% 2.20% 2.20% Ratio of net investment income (loss) to average net assets (0.56)%** 1.13% 0.45% 0.82% 0.35% (0.07)% Portfolio turnover rate 113%** 121% 160% 152% 194% 114% Net assets, end of period (in thousands) $12,474 $ 8,427 $ 6,516 $ 5,682 $ 6,439 $ 6,118 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 2.19%** 2.35% 2.51% 2.53% 2.48% 2.54% Net investment income (loss) to average net assets (0.66)%** 0.98% 0.14% 0.49% 0.07% (0.41)% ============================================================================================================================= * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. (a) Amount rounds to less than $0.01 per share. The accompanying notes are an integral part of these financial statements. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 29 Financial Highlights (continued) -------------------------------------------------------------------------------- 12/31/14 to 2/28/15 (unaudited) -------------------------------------------------------------------------------- Class K Net asset value, beginning of period $ 13.51 -------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.01 Net realized and unrealized gain (loss) on investments 0.43 -------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.44 -------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ -- -------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ 0.44 -------------------------------------------------------------------------------- Net asset value, end of period $ 13.95 ================================================================================ Total return* 2.81%*** Ratio of net expenses to average net assets 1.00%** Ratio of net investment income (loss) to average net assets 1.23%** Portfolio turnover rate 113%** Net assets, end of period (in thousands) $ 59,574 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 1.10%** Net investment income (loss) to average net assets 1.13%** ================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not Annualized. The accompanying notes are an integral part of these financial statements. 30 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year Year Year Year 2/28/15 Ended Ended Ended Ended Ended (unaudited) 8/31/14 8/31/13 8/31/12 8/31/11 8/31/10 -------------------------------------------------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 14.12 $ 11.37 $ 9.69 $ 9.32 $ 8.49 $ 8.59 -------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ (0.20) $ 0.37 $ 0.20 $ 0.21 $ 0.18 $ 0.12 Net realized and unrealized gain (loss) on investments 0.51 2.63 1.69 0.34 0.76 (0.17) -------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.31 $ 3.00 $ 1.89 $ 0.55 $ 0.94 $ (0.05) -------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.45) $ (0.25) $ (0.21) $ (0.18) $ (0.11) $ (0.05) -------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.14) $ 2.75 $ 1.68 $ 0.37 $ 0.83 $ (0.10) -------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 13.98 $ 14.12 $ 11.37 $ 9.69 $ 9.32 $ 8.49 ========================================================================================================================== Total return* 2.25% 26.66% 19.75% 6.09% 10.96% (0.59)% Ratio of net expenses to average net assets 0.80%** 0.80% 0.80% 0.80% 0.80% 0.80% Ratio of net investment income (loss) to average net assets 0.74%** 2.58% 1.85% 2.22% 1.74% 1.33% Portfolio turnover rate 113%** 121% 160% 152% 194% 114% Net assets, end of period (in thousands) $13,558 $70,384 $71,726 $60,214 $59,927 $58,692 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 0.91%** 0.95% 1.00% 0.97% 0.95% 0.96% Net investment income (loss) to average net assets 0.63%** 2.43% 1.65% 2.05% 1.59% 1.17% ========================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. The accompanying notes are an integral part of these financial statements. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 31 Notes to Financial Statements | 2/28/15 (unaudited) 1. Organization and Significant Accounting Policies Pioneer Global Equity Fund, formerly Pioneer Global Select Equity Fund (the Fund), is one of five portfolios comprising Pioneer Series Trust V, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The Fund commenced operations on December 15, 2005. The Fund's investment objective is to seek long-term capital growth. The Fund offers four classes of shares designated as Class A, Class C, Class K and Class Y shares. Class Y shares were first publicly offered on December 31, 2008. Class K shares were first publicly offered on January 2, 2015. The Fund ceased to offer Class B shares on November 10, 2014. Class B shares were converted to Class A shares as of the close of business on November 10, 2014. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board the flexibility to specify either per-share voting or dollar-weighted voting when submitting matters for shareholder approval. Under per-share voting, each share of a class of the Fund is entitled to one vote. Under dollar-weighted voting, a shareholder's voting power is determined not by the number of shares owned, but by the dollar value of the shares on the record date. Each share class has exclusive voting rights with respect to matters affecting only that class, including with respect to the distribution plan for that class. There is no distribution plan for Class Y shares. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles that require the management of the Fund to, among other things, make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses and gain or loss on investments during the reporting period. Actual results could differ from those estimates. 32 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements, which are consistent with those policies generally accepted in the investment company industry: A. Security Valuation Security transactions are recorded as of trade date. The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. In computing the net asset value, securities that have traded on an exchange are valued using the last sale price on the principal exchange where they are traded. Securities that have not traded on the date of valuation, or securities for which sale prices are not available, generally are valued using the mean between the last bid and asked prices. Shares of money market mutual funds are valued at such funds' net asset value. Cash may include overnight time deposits at approved financial institutions. The Fund invests primarily in securities of non-U.S. issuers. The principal exchanges and markets for such securities have closing times prior to the close of the NYSE. However, the value of these securities may be influenced by changes in global markets occurring after the closing times of the local exchanges and markets up to the time the Fund determines its net asset value. Consequently, the Board of Trustees of the Fund has determined that daily adjustments to the valuation of securities of non-U.S. issuers by utilizing an independent pricing service that supplies an appropriate fair value factor is appropriate for the Fund. Securities for which independent pricing services are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of Pioneer Investment Management, Inc. (PIM), the Fund's investment adviser, pursuant to procedures adopted by the Fund's Board of Trustees. PIM's fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. PIM's fair valuation Pioneer Global Equity Fund | Semiannual Report | 2/28/15 33 team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. At February 28, 2015, no securities were valued using fair value methods (other than securities valued using prices supplied by independent pricing services or broker-dealers). B. Investment Income and Transactions Dividend income is recorded on the ex-dividend date except that certain dividends from foreign securities where the ex-dividend date may have passed are recorded as soon as the Fund becomes aware of the ex-dividend data in the exercise of reasonable diligence. Interest income is recorded on the accrual basis. Dividend and interest income are reported net of unrecoverable foreign taxes withheld at the applicable country rates. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. C. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no provision for federal income taxes is required. As of August 31, 2014, the Fund did not accrue any interest or penalties with respect to uncertain tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax returns filed within the prior three years are subject to examination by Federal and State tax authorities. In addition to the requirements of the Internal Revenue Code, the Fund may also be required to pay local taxes on the recognition of capital gains and/or the repatriation of foreign currencies in certain countries. During the six months ended February 28, 2015, the Fund paid no such taxes. In determining the daily net asset value, the Fund estimates the reserve for such taxes, if any, associated with investments in certain countries. The estimated reserve for the capital gains is based on the net unrealized appreciation on certain portfolio securities, the holding period of such securities and the related tax rates, tax loss carryforward (if applicable) and other such factors. As of February 28, 2015, the Fund had $81,324 in reserve related to capital gains. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. generally accepted accounting principles. 34 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Capital accounts within the financial statements are adjusted for permanent book/tax differences to reflect tax character, but are not adjusted for temporary differences. The tax character of current year distributions payable will be determined at the end of the current taxable year. The tax character of distributions during the year ended August 31, 2014 was as follows: ---------------------------------------------------------------------------- 2014 ---------------------------------------------------------------------------- Distributions paid from: Ordinary income $2,714,882 ---------------------------------------------------------------------------- Total $2,714,882 ============================================================================ The following shows the components of distributable earnings on a federal income tax basis at August 31, 2014: ---------------------------------------------------------------------------- 2014 ---------------------------------------------------------------------------- Distributable earnings: Undistributed ordinary income $ 3,900,336 Capital loss carryforward (26,144,250) Net unrealized appreciation 23,929,482 ---------------------------------------------------------------------------- Total $ 1,685,568 ============================================================================ The difference between book-basis and tax-basis net unrealized appreciation is attributable to the tax deferral of losses on wash sales and the mark-to-market of forwards, futures, and swap contracts. D. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit), earned $7,828 in underwriting commissions on the sale of Class A shares during the six months ended February 28, 2015. E. Foreign Currency Translation The books and records of the Fund are maintained in U.S. dollars. Amounts denominated in foreign currencies are translated into U.S. dollars using current exchange rates. Net realized gains and losses on foreign currency transactions, if any, represent, among other things, the net realized gains and losses on foreign currency contracts, disposition of foreign currencies and the difference between the amount of income accrued and the U.S. dollars actually received. Further, the effects of changes in foreign currency exchange Pioneer Global Equity Fund | Semiannual Report | 2/28/15 35 rates on investments are not segregated in the Statement of Operations from the effects of changes in the market price of those securities but are included with the net realized and unrealized gain or loss on investments. F. Forward Foreign Currency Contracts The Fund may enter into forward foreign currency contracts (contracts) for the purchase or sale of a specific foreign currency at a fixed price on a future date. All contracts are marked to market daily at the applicable exchange rates, and any resulting unrealized appreciation or depreciation are recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a contract is offset by entry into a closing transaction or extinguished by delivery of the currency. Risks may arise upon entering into these contracts from the potential inability of counterparties to meet the terms of the contract and from unanticipated movements in the value of foreign currencies relative to the U.S. dollar (see Note 6). G. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Distribution fees are calculated based on the average daily net asset value attributable to Class A and Class C shares of the Fund, respectively (see Note 4). Class K and Class Y shares do not pay distribution fees. All expenses and fees paid to the transfer agent, Pioneer Investment Management Shareholder Services, Inc. (PIMSS), for its services are allocated among the classes of shares based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). Distributions to shareowners are recorded as of the ex-dividend date. Distributions paid by the Fund with respect to each class of shares are calculated in the same manner and at the same time, except that net investment income dividends to Class A, Class C, Class K and Class Y shares can reflect different transfer agent and distribution expense rates. H. Risks Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates and economic and political conditions. At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making the Fund more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. The Fund's prospectus contains unaudited information regarding the Fund's principal risks. Please refer to that document when considering the Fund's principal risks. 36 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 I. Futures Contracts The Fund may enter into futures transactions in order to attempt to hedge against changes in interest rates, securities prices and currency rates or to seek to increase total return. Futures contracts are types of derivatives. All futures contracts entered into by the Fund are traded on a futures exchange. Upon entering into a futures contract, the Fund is required to deposit with a broker an amount of cash or securities equal to the minimum "initial margin" requirements of the associated futures exchange. The amount of cash deposited with the broker as collateral at February 28, 2015 was $166,100. Subsequent payments for futures contracts ("variation margin") are paid or received by the Fund, depending on the daily fluctuation in the value of the contracts, and are recorded by the Fund as unrealized appreciation or depreciation. When the contract is closed, the Fund realizes a gain or loss equal to the difference between the opening and closing value of the contract as well as any fluctuation in foreign currency exchange rates where applicable. The use of futures contracts involves, to varying degrees, elements of market, interest rate, currency exchange rate and counterparty risks, which may exceed the amounts recognized by the Fund. Changes in value of the contracts may not directly correlate to the changes in value of the underlying securities. These risks may decrease the effectiveness of the Fund's hedging strategies and potentially result in a loss. The average value of contracts open during the six months ended February 28, 2015 was $1,287,374. At February 28, 2015, open futures contracts were as follows: ---------------------------------------------------------------------------- Number of Contracts Settlement Unrealized Type Long/(Short) Month Value Depreciation ---------------------------------------------------------------------------- F/C Japanese Yen Currency Future (30) 3/15 $(3,132,750) $(15,212) ---------------------------------------------------------------------------- Total $(15,212) ============================================================================ J. Purchased Options The Fund may purchase call and put options in order to attempt to hedge against changes in the value of portfolio securities or to seek to increase total return. Purchased call and put options entitle the Fund to buy and sell a specified number of shares or units of a particular security, currency or index at a specified price at a specific date or within a specific period of time. Upon the purchase of a call or put option, the premium paid by the Fund is included in the Statement of Assets and Liabilities as an investment. All premiums are marked-to-market daily, and any unrealized appreciation or depreciation are recorded in the Fund's financial statements. As the purchaser of an index option, the Fund has the right to receive a cash payment equal to any depreciation in the value of the index below the strike price of the option (in the case of a put) or equal to any appreciation in the value of the index over the Pioneer Global Equity Fund | Semiannual Report | 2/28/15 37 strike price of the option (in the case of a call) as of the valuation date of the option. Premiums paid for purchased calls and put options which have expired are treated as realized losses on investments in the Statement of Operations. Upon the exercise or closing of a purchased put option, the premium is offset against the proceeds on the sale of the underlying security or financial instrument in order to determine the realized gain or loss on investments. Upon the exercise or closing of a purchased call option, the premium is added to the cost of the security or financial instrument. The risk associated with purchasing options is limited to the premium originally paid. There were no purchased options held during the six months ended February 28, 2015. K. Option Writing The Fund may write put and covered call options to seek to increase total return. When an option is written, the Fund receives a premium and becomes obligated to purchase or sell the underlying security at a fixed price, upon the exercise of the option. When the Fund writes an option, an amount equal to the premium received by the Fund is recorded as a liability and is subsequently adjusted to the current value of the option written. Premiums received from writing options that expire unexercised are treated by the Fund on the expiration date as realized gains from investments. The difference between the premium and the amount paid on effecting a closing purchase transaction, including brokerage commissions, is also treated as a realized gain, or, if the premium is less than the amount paid for the closing purchase transaction, as a realized loss. If a call option is exercised, the premium is added to the proceeds from the sale of the underlying security in determining whether the Fund has realized a gain or loss. The Fund as writer of an option bears the market risk of an unfavorable change in the price of the security underlying the written option. There were no written options held during the six months ended February 28, 2015. L. Total Return Swap Agreements The Fund may enter into a total return swap to attempt to manage and/or gain exposure to a security or market. Pursuant to a total return swap agreement, the Fund negotiates with a counterparty to exchange a periodic stream of payments. One party makes payments based on the total return of a reference asset (such as a security or a basket of securities or securities index), and in return receives fixed or floating rate interest payments. The total return of the reference asset typically includes appreciation or depreciation on the reference asset, plus any interest or dividend payments. To the extent that the total return of the reference asset exceeds or falls short of the offsetting interest rate obligation, the Fund will receive a payment from or make a payment to the counterparty. 38 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Total return swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Payments received or made are recorded as realized gains or losses in the Statement of Operations. Total return swap contracts are subject to counterparty risk and unanticipated movements in value of exchange rates, interest rates, securities or the index. Open total return swap contracts at February 28, 2015 are listed in the Schedule of Investments. The average value of swap contracts open during the six months ended February 28, 2015 was $130,175. 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, manages the Fund's portfolio. Management fees are calculated daily at the annual rate equal to 0.75% of the Fund's average daily net assets up to $500 million, 0.70% of the next $500 million of the Fund's average daily net assets and 0.65% of the Fund's average daily net assets over $1 billion. For the six months ended February 28, 2015, the effective management fee (excluding waivers and/or assumption of expenses) was equivalent to 0.75% of the Fund's average daily net assets. PIM has contractually agreed to limit ordinary operating expenses of the Fund to the extent required to reduce Fund expenses to 1.30%, 2.20%, and 0.80% of the average daily net assets attributable to Class A, Class C and Class Y shares, respectively. Fees waived and expenses reimbursed during the six months ended February 28, 2015 are reflected on the Statement of Operations. These expense limitations are in effect through January 1, 2016. There can be no assurance that PIM will extend the expense limitation agreement for a class of shares beyond the date referred to above. In addition, under the management and administration agreements, certain other services and costs, including accounting, regulatory reporting and insurance premiums, are paid by the Fund as administrative reimbursements. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $27,223 in management fees, administrative costs and certain other reimbursements payable to PIM at February 28, 2015. 3. Transfer Agent PIMSS, a wholly owned indirect subsidiary of UniCredit, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. In addition, the Fund reimburses PIMSS for out-of-pocket expenses incurred by PIMSS related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 39 For the six months ended February 28, 2015, such out-of-pocket expenses by class of shares were as follows: -------------------------------------------------------------------------------- Shareholder Communications: -------------------------------------------------------------------------------- Class A $36,578 Class B 1,148 Class C 4,724 Class Y 2,604 -------------------------------------------------------------------------------- Total: $45,054 ================================================================================ Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $21,053 in transfer agent fees and out-of-pocket reimbursements payable to PIMSS at February 28, 2015. 4. Distribution Plan The Fund has adopted a Distribution Plan pursuant to Rule 12b-1 of the Investment Company Act of 1940 with respect to its Class A and Class C shares. Pursuant to the Plan, the Fund pays PFD 0.25% of the average daily net assets attributable to Class A shares as compensation for personal services and/or account maintenance services or distribution services with regard to Class A shares. Pursuant to the Plan, the Fund also pays PFD 1.00% of the average daily net assets attributable to Class C shares. The fee for Class C shares consists of a 0.25% service fee and a 0.75% distribution fee paid as compensation for personal services and/or account maintenance services or distribution services with regard to Class C shares. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $2,695 in distribution fees payable to PFD at February 28, 2015. In addition, redemptions of each class of shares (except Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class Y shares. Proceeds from the CDSCs are paid to PFD. For the six months ended February 28, 2015, CDSCs in the amount of $670 were paid to PFD. 5. Expense Offsets Arrangements The Fund has entered into certain expense offset arrangements with PIMSS, which may result in a reduction in the Fund's total expenses due to interest earned on cash held by PIMSS. For the six months ended February 28, 2015, the Fund's expenses were not reduced under such arrangements. 40 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 6. Forward Foreign Currency Contracts At February 28, 2015, the Fund had entered into various forward foreign currency contracts that obligate the Fund to deliver or take delivery of currencies at specified future maturity dates. Alternatively, prior to the settlement date of a forward foreign currency contract, the Fund may close out such contract by entering into an offsetting contract. The average value of forward foreign currency contracts open during the six months ended February 28, 2015 was $68,433. Open forward foreign currency contracts at February 28, 2015 were as follows: ------------------------------------------------------------------------------------------------------ Quantity/ Shares Net Currency Purchased/ Book Settlement US $ Value at Unrealized Description Counterparty (Sold) Value Date 2/28/15 Appreciation ------------------------------------------------------------------------------------------------------ HKD (Kong Brown Brothers Kong Dollar) Harriman & Co. 432,965 $(55,814) 3/2/15 $ 55,824 $ 10 JPY (Japanese Brown Brothers Yen) Harriman & Co. (6,903,000) 57,862 3/2/15 (57,669) 193 ------------------------------------------------------------------------------------------------------ Total $ 203 ====================================================================================================== ------------------------------------------------------------------------------------------------------ Quantity/ Shares Net Currency Purchased/ Book Settlement US $ Value at Unrealized Description Counterparty (Sold) Value Date 2/28/15 (Depreciation) ------------------------------------------------------------------------------------------------------ NOK (Norwegian Brown Brothers Krone) Harriman & Co. (5,647,740) $736,486 3/2/15 $(736,601) $(115) ====================================================================================================== 7. Assets and Liabilities Offsetting Financial instruments subject to an enforceable master netting agreement have been offset on the Statement of Assets and Liabilities. The following charts show gross assets and liabilities of the Fund as of February 28, 2015. ----------------------------------------------------------------------------------------------- Assets: Net Gross Amounts Gross Amounts Amounts of Assets Not Offset in Offset Presented the Statement of in the in the Assets and Liabilities Gross Statement Statement ------------------------ Amounts of of Assets of Assets Cash Recognized and and Financial Collateral Net Description Assets Liabilities Liabilities Instruments Received Amount ----------------------------------------------------------------------------------------------- Forward foreign currency contracts $ 203 $ -- $ -- $ -- $ -- $ 203 Total return swap $339,102 $ -- $ -- $ -- $ -- $339,102 ----------------------------------------------------------------------------------------------- $339,305 $ -- $ -- $ -- $ -- $339,305 =============================================================================================== Pioneer Global Equity Fund | Semiannual Report | 2/28/15 41 ----------------------------------------------------------------------------------------------- Liabilities: Net Gross Amounts Gross Amounts Amounts of Assets Not Offset in Offset Presented the Statement of in the in the Assets and Liabilities Gross Statement Statement ------------------------ Amounts of of Assets of Assets Cash Recognized and and Financial Collateral Net Description Liabilities Liabilities Liabilities Instruments Received Amount ----------------------------------------------------------------------------------------------- Forward foreign currency contracts $ 115 $ -- $ -- $ -- $ -- $ 115 Total return swap -- -- -- -- 375,000 375,000 ----------------------------------------------------------------------------------------------- $ 115 $ -- $ -- $ -- $ 375,000 $375,115 =============================================================================================== 8. Additional Disclosures about Derivative Instruments and Hedging Activities Values of derivative instruments as of February 28, 2015 were as follows: ----------------------------------------------------------------------------------------------- Derivatives Not Accounted for as Hedging Instruments Asset Derivatives 2015 Liabilities Derivatives 2015 Under Accounting ----------------------------------------------------------------- Standards Codification Balance Sheet Balance Sheet (ASC) 815 Location Value Location Value ----------------------------------------------------------------------------------------------- Forward Foreign Net unrealized Net unrealized Currency Contracts appreciation on depreciation on forward foreign forward foreign currency contracts $ 203 currency contracts $ 115 Total Return Swap Net unrealized Net unrealized appreciation on depreciation on total return swap $ 339,102 total return swap $ -- Futures Contracts Net unrealized Net unrealized appreciation on depreciation on futures contracts $ -- futures contracts $ 15,212 ----------------------------------------------------------------------------------------------- Total $ 339,305 $ 15,327 =============================================================================================== 42 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 The effect of derivative instruments on the Statement of Operations for the six months ended February 28, 2015 was as follows: ----------------------------------------------------------------------------------------------- Change in Derivatives Not Unrealized Accounted for as Realized Gain Appreciation or Hedging Instruments or (Loss) on (Depreciation) Under Accounting Location of Gain or (Loss) Derivatives on Derivatives Standards Codification on Derivatives Recognized Recognized Recognized (ASC) 815 in Income in Income in Income ----------------------------------------------------------------------------------------------- Forward Foreign Net realized gain (loss) on Currency Contracts forward foreign currency contracts $ 48,881 Forward Foreign Change in unrealized appreciation Currency Contracts (depreciation) on forward foreign currency contracts $ (47,618) Total Return Swap Net realized gain (loss) on total return swap $ 529,248 Total Return Swap Change in unrealized appreciation (depreciation) on total return swap $ 260,392 Futures Contracts Net realized gain (loss) on futures contracts $(119,534) Futures Contracts Change in net unrealized appreciation (depreciation) on futures contracts $ 132,138 9. Change in Independent Registered Public Accounting Firm The Board of Trustees of the Fund, with the approval and recommendation of the Audit Committee, has appointed Deloitte & Touche LLP to serve as the Fund's independent registered public accounting firm. Deloitte & Touche LLP replaced Ernst & Young LLP, which resigned as the Fund's independent registered public accounting firm, effective upon completion of the audit of the Fund's financial statements for the fiscal year ended August 31, 2013. During the periods that Ernst & Young LLP served as the Fund's independent registered public accounting firm, including the Fund's fiscal years ended August 31, 2013 and August 31, 2012, Ernst & Young LLP's reports on the financial statements of the Fund have not contained an adverse opinion or disclaimer of opinion and have not been qualified or modified as to uncertainty, audit scope or accounting principles. Further, there have been no disagreements with Ernst & Young LLP on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which, if not resolved to the satisfaction of Ernst & Young LLP would have caused Ernst & Young LLP to make reference to the subject matter of the disagreement in connection with its report on the financial statements. In addition, there have been no reportable events of the kind described in Item 304 (a)(1)(v) of Regulation S-K under the Securities Exchange Act of 1934. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 43 10. Conversion of Class B Shares As of the close of business on November 10, 2014 (the "Conversion Date"), all outstanding Class B shares of the Fund were converted to Class A shares. 44 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Approval of Investment Advisory Agreement Pioneer Investment Management, Inc. (PIM) serves as the investment adviser to Pioneer Global Equity Fund (the Fund) pursuant to an investment advisory agreement between PIM and the Fund. In order for PIM to remain the investment adviser of the Fund, the Trustees of the Fund must determine annually whether to renew the investment advisory agreement for the Fund. The contract review process began in January 2014 as the Trustees of the Fund agreed on, among other things, an overall approach and timeline for the process. Contract review materials were provided to the Trustees in March 2014 and July 2014. Supplemental contract review materials were provided to the Trustees in September 2014. In addition, the Trustees reviewed and discussed the Fund's performance at regularly scheduled meetings throughout the year, and took into account other information related to the Fund provided to the Trustees at regularly scheduled meetings, in connection with the review of the Fund's investment advisory agreement. In March 2014, the Trustees, among other things, discussed the memorandum provided by Fund counsel that summarized the legal standards and other considerations that are relevant to the Trustees in their deliberations regarding the renewal of the investment advisory agreement, and reviewed and discussed the qualifications of the investment management teams, as well as the level of investment by the Fund's portfolio managers in the Fund. In July 2014, the Trustees, among other things, reviewed the Fund's management fee and total expense ratios, the financial statements of PIM and its parent companies, the profitability analyses provided by PIM, and possible economies of scale. The Trustees also reviewed the profitability of the institutional business of PIM and PIM's affiliate, Pioneer Institutional Asset Management, Inc. (together with PIM, "Pioneer"), as compared to that of PIM's fund management business, and considered the differences between the fees and expenses of the Fund and the fees and expenses of Pioneer's institutional accounts, as well as the different services provided by PIM to the Fund and by Pioneer to the institutional accounts. The Trustees further considered contract review materials in September 2014. At a meeting held on September 16, 2014, based on their evaluation of the information provided by PIM and third parties, the Trustees of the Fund, including the Independent Trustees voting separately, unanimously approved the renewal of the investment advisory agreement for another year. In considering the renewal of the investment advisory agreement, the Trustees considered various factors that they determined were relevant, including the factors described below. In all quintile rankings referred to throughout this Pioneer Global Equity Fund | Semiannual Report | 2/28/15 45 disclosure, first quintile is most favorable to the Fund's shareowners. The Trustees did not identify any single factor as the controlling factor in determining to approve the renewal of the agreement. Nature, Extent and Quality of Services The Trustees considered the nature, extent and quality of the services that had been provided by PIM to the Fund, taking into account the investment objective and strategy of the Fund. The Trustees reviewed the terms of the investment advisory agreement. The Trustees also reviewed PIM's investment approach for the Fund and its research process. The Trustees considered the resources of PIM and the personnel of PIM who provide investment management services to the Fund. They also reviewed the amount of non- Fund assets managed by the portfolio managers of the Fund. The Trustees considered the non-investment resources and personnel of PIM involved in PIM's services to the Fund, including PIM's compliance and legal resources and personnel. The Trustees noted the substantial attention and high priority given by PIM's senior management to the Pioneer fund complex. The Trustees considered that PIM supervises and monitors the performance of the Fund's service providers and provides the Fund with personnel (including Fund officers) and other resources that are necessary for the Fund's business management and operations. The Trustees also considered that, as administrator, PIM is responsible for the administration of the Fund's business and other affairs. The Trustees considered the fees paid to PIM for the provision of administration services. Based on these considerations, the Trustees concluded that the nature, extent and quality of services that had been provided by PIM to the Fund were satisfactory and consistent with the terms of the investment advisory agreement. Performance of the Fund In considering the Fund's performance, the Trustees regularly review and discuss analysis and data prepared by PIM and information comparing the Fund's performance with the performance of its peer group of funds as classified by each of Morningstar, Inc. (Morningstar) and Lipper, and with the performance of the Fund's benchmark index. They also discuss the Fund's performance with PIM on a regular basis. The Trustees confirmed that these regular reviews and discussions were factored into the Trustees' deliberations concerning the renewal of the advisory agreement. For purposes of their contract renewal deliberations, the Trustees considered the discussions held throughout the year regarding the Fund's performance and the performance results of the Fund over various time periods, including the Fund's performance results for periods ended June 30, 2014. The Trustees indicated 46 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 that they were satisfied with PIM's investment discipline and approach in the prevailing market conditions, notwithstanding relatively poor peer comparisons of total return over the 5-year period. Management Fee and Expenses The Trustees considered information showing the fees and expenses of the Fund in comparison to the management fees and expense ratios of its peer group of funds as classified by Morningstar and also to the expense ratios of a peer group of funds selected on the basis of criteria determined by the Independent Trustees for this purpose using data provided by Strategic Insight Mutual Fund Research and Consulting, LLC (Strategic Insight), an independent third party. The Trustees considered that the Fund's management fee for the twelve months ended June 30, 2014 was in the second quintile relative to the management fees paid by other funds in its Morningstar peer group for the comparable period. The Trustees also considered the breakpoints in the management fee schedule and the reduced fee rates above certain asset levels. The Trustees considered that the expense ratio of the Fund's Class A shares for the twelve months ended June 30, 2014 was in the second quintile relative to its Morningstar peer group and in the first quintile relative its Strategic Insight peer group, in each case for the comparable period. The Trustees considered that the expense ratio of the Fund's Class Y shares for the twelve months ended June 30, 2014 was in the first quintile relative to its Morningstar peer group and in the first quintile relative its Strategic Insight peer group, in each case for the comparable period. The Trustees noted that PIM was waiving fees and/or reimbursing expenses in order to limit the ordinary operating expenses of the Fund. The Trustees considered the impact of transfer agency, sub-transfer agency, and other non- management fee expenses on the expense ratios of the Fund. The Trustees noted that they separately review the Fund's transfer agency, sub-transfer agency and intermediary arrangements. The Trustees reviewed management fees charged by Pioneer to institutional and other clients, including publicly offered European funds sponsored by affiliates of Pioneer, unaffiliated U.S. registered investment companies (in a sub-advisory capacity), and unaffiliated foreign and domestic separate accounts. The Trustees also considered PIM's costs in providing services to the Fund and Pioneer's costs in providing services to the other clients and considered the differences in management fees and profit margins for Fund and non-Fund services. In evaluating the fees associated with Pioneer's client accounts, the Trustees took into account the respective demands, resources and complexity associated with the Fund and client accounts. The Trustees noted that, in some instances, the fee rates for those clients were lower than the management fee for the Fund and considered that, under the investment advisory agreement with the Fund, PIM performs additional services for the Fund that it does not provide to those other clients or services that are broader Pioneer Global Equity Fund | Semiannual Report | 2/28/15 47 in scope, including oversight of the Fund's other service providers and activities related to compliance and the extensive regulatory and tax regimes to which the Fund is subject. The Trustees also considered the different entrepreneurial risks associated with PIM's management of the Fund and Pioneer's management of the other client accounts. The Trustees concluded that the management fee payable by the Fund to PIM was reasonable in relation to the nature and quality of the services provided by PIM to the Fund. Profitability The Trustees considered information provided by PIM regarding the profitability of PIM with respect to the advisory services provided by PIM to the Fund, including the methodology used by PIM in allocating certain of its costs to the management of the Fund. The Trustees also considered PIM's profit margin in connection with the overall operation of the Fund. They further reviewed the financial results realized by PIM and its affiliates from non-fund businesses. The Trustees considered PIM's profit margins with respect to the Fund in comparison to the limited industry data available and noted that the profitability of any adviser was affected by numerous factors, including its organizational structure and method for allocating expenses. The Trustees concluded that PIM's profitability with respect to the management of the Fund was not unreasonable. Economies of Scale The Trustees considered PIM's views relating to economies of scale in connection with the Pioneer Funds as fund assets grow and the extent to which any such economies of scale are shared with funds and fund shareholders. The Trustees noted the breakpoints in the management fee schedule. The Trustees recognize that economies of scale are difficult to identify and quantify, and that, among other factors that may be relevant, are the following: fee levels, expense subsidization, investment by PIM in research and analytical capabilities and PIM's commitment and resource allocation to the Fund. The Trustees noted that profitability also may be an indicator of the availability of any economies of scale, although profitability may vary for other reasons including reductions in expenses. The Trustees concluded that economies of scale, if any, were being appropriately shared with the Funds. Other Benefits The Trustees considered the other benefits to PIM from its relationship with the Fund. The Trustees considered the character and amount of fees paid by the Fund, other than under the investment advisory agreement, for services provided by PIM and its affiliates. The Trustees further considered the revenues and profitability of PIM's businesses other than the fund business. 48 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 Pioneer is the principal U.S. asset management business of Pioneer Global Asset Management, the worldwide asset management business of UniCredit Group, which manages over $150 billion in assets (including the Funds). Pioneer and the Funds receive reciprocal intangible benefits from the relationship, including mutual brand recognition and, for the Funds, direct and indirect access to the resources of a large global asset manager. The Trustees concluded that any such benefits received by Pioneer as a result of its relationship with the Funds were reasonable and their consideration of the advisory agreement between the Fund and PIM and the fees thereunder were unaffected by Pioneer's possible receipt of any such intangible benefits. Conclusion After consideration of the factors described above as well as other factors, the Trustees, including all of the Independent Trustees, concluded that the investment advisory agreement between PIM and the Fund, including the fees payable thereunder, was fair and reasonable and voted to approve the proposed renewal of the investment advisory agreement for the Fund. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 49 Trustees, Officers and Service Providers Trustees Advisory Trustee Thomas J. Perna, Chairman Lorraine H. Monchak* David R. Bock Benjamin M. Friedman Officers Margaret B.W. Graham Lisa M. Jones, President and Chief Marguerite A. Piret Executive Officer Fred J. Ricciardi Mark E. Bradley, Treasurer and Kenneth J. Taubes Chief Financial Officer Christopher J. Kelley, Secretary and Chief Legal Officer Investment Adviser and Administrator Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Pioneer Investment Management Shareholder Services, Inc. Proxy Voting Policies and Procedures of the Fund are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to shareowners at us.pioneerinvestments.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. * Ms. Monchak is a non-voting Advisory Trustee. 50 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 This page for your notes. Pioneer Global Equity Fund | Semiannual Report | 2/28/15 51 This page for your notes. 52 Pioneer Global Equity Fund | Semiannual Report | 2/28/15 How to Contact Pioneer We are pleased to offer a variety of convenient ways for you to contact us for assistance or information. Call us for: -------------------------------------------------------------------------------- Account Information, including existing accounts, new accounts, prospectuses, applications and service forms 1-800-225-6292 FactFone(SM) for automated fund yields, prices, account information and transactions 1-800-225-4321 Retirement plans information 1-800-622-0176 Write to us: -------------------------------------------------------------------------------- PIMSS, Inc. P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address ask.pioneer@pioneerinvestments.com (for general questions about Pioneer only) Visit our web site: us.pioneerinvestments.com This report must be preceded or accompanied by a prospectus. The Fund files a complete schedule of investments with the Securities and Exchange Commission for the first and third quarters for each fiscal year on Form N-Q. Shareholders may view the filed Form N-Q by visiting the Commission's web site at http://www.sec.gov. The filed form may also be viewed and copied at the Commission's Public Reference Room in Washington, DC. Information regarding the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 us.pioneerinvestments.com Securities offered through Pioneer Funds Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2015 Pioneer Investments 19129-09-0415 Pioneer High Income Municipal Fund -------------------------------------------------------------------------------- Semiannual Report | February 28, 2015 -------------------------------------------------------------------------------- Ticker Symbols: Class A PIMAX Class C HICMX Class Y HIMYX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents President's Letter 2 Portfolio Management Discussion 4 Portfolio Summary 8 Prices and Distributions 9 Performance Update 10 Comparing Ongoing Fund Expenses 13 Schedule of Investments 15 Financial Statements 25 Notes to Financial Statements 32 Approval of Investment Advisory Agreement 39 Trustees, Officers and Service Providers 44 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 1 President's Letter Dear Shareowner, Today's market environment presents numerous opportunities as well as challenges for investors. A disparate global economic landscape has formed, with the U.S. facing prospects for continued growth, while questions abound regarding the outlook for other regions. Employment, household income, and corporate profits have been rising in the U.S. and inflation pressures remain low. However, many countries across Europe as well as Japan face muted growth. In addition, a variety of factors have clouded the outlook for countries such as Russia and Brazil and China's investment-driven economy continues to slow. Monetary policies of major central banks are diverging, reflecting different economic conditions. With the U.S. economy no longer in need of extraordinary stimulus, the Federal Reserve Board may be closer to raising short-term interest rates. Conversely, the European Central Bank and the Bank of Japan are likely to be adding, not removing, stimulus. While we anticipate continued growth for the U.S., the outlook is far from certain, nor is the outlook for other regions necessarily dire. It remains to be seen how weakness outside the U.S. will affect global growth and whether easing monetary policies in other regions will spur an economic recovery. While these economic conditions may lead to increasing volatility in 2015, we believe the opportunity for investors to earn attractive returns will persist. However, in an environment where interest rates remain low and equity valuations have been buoyed by an extended bull market, we believe it is imperative investors adhere to a disciplined investment approach that is consistent with one's goals and objectives, being mindful of the tradeoff between risk and return. Since 1928 Pioneer's investment professionals have been focused on identifying and capitalizing on investment opportunities that present themselves in a variety of ever changing market conditions, including those we face today. We seek returns consistent with our strategies' stated style and 2 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 objectives and consistent with our shareholders' expectations, regardless of market conditions. We believe our shareowners benefit from the experience and tenure of our investment teams, the insights generated from extensive research resources and a commitment to prudent risk management that seeks to mitigate downside and preserve returns over time. We encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short- and long-term goals, and to implement such a plan in a disciplined manner, as we do when deploying strategies on behalf of our shareowners. We greatly appreciate your trust in us in the past and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones President and CEO Pioneer Investment Management USA, Inc. Any information in this shareowner report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. These statements should not be relied upon for any other purposes. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 3 Portfolio Management Discussion | 2/28/15 Municipal bonds, led by higher-yielding municipals, generated healthy returns during the six-month period ended February 28, 2015, as persistent demand outstripped limited supply. In the following interview, Jonathan Chirunga and David Eurkus discuss the factors that influenced the performance of Pioneer High Income Municipal Fund during the six-month period. Mr. Chirunga, a vice president and a portfolio manager at Pioneer, manages the Fund along with Mr. Eurkus, Director of Municipals, a senior vice president and a portfolio manager at Pioneer. Q How did the Fund perform during the six-month period ended February 28, 2015? A Pioneer High Income Municipal Fund's Class A shares returned 4.99% during the six- month period ended February 28, 2015, while the Fund's benchmark, the Barclays High Yield Municipal Bond Index (the Barclays Index), returned 3.42%. During the same period, the average return of the 145 mutual funds in Lipper's High-Yield Municipal Debt Funds category was 3.87%, and the average return of the 193 mutual funds in Morningstar's High-Yield Municipal Funds category was 3.77%. Q How did you position the Fund's portfolio during the six-month period ended February 28, 2015? A Throughout the six-month period we continued to restructure the Fund's portfolio, subjecting all new and existing investments to our intensive credit research selection process while adding more diversification* to the Fund's holdings across the various municipal bond sectors. The emphasis on credit research has benefited the Fund, as the portfolio has experienced no defaults among any of the new holdings added since the restructuring began two years ago. As part of the restructuring process we have paid careful attention to portfolio diversification, by sector as well as geographical region. For example, the Fund's exposure to continuing care retirement communities has been reduced significantly over the past two years. We also have increased the portfolio's exposure to charter schools (18% of invested assets), which is allocated among 23 different schools in 11 different states. * Diversification does not assure a profit nor protect against loss in a declining market. 4 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 We have made a conscious effort to avoid the higher-risk areas of the municipal market as well. For instance, bonds issued by the Commonwealth of Puerto Rico, which have been troubled assets, represent roughly 28% of the benchmark Barclays Index, whereas we have limited the Fund's exposure to Puerto Rican bonds to roughly 2% of invested assets. During the period, we maintained the Fund's emphasis on holding bonds backed by revenues from specific projects, rather than general obligation bonds, which we think tend to be more sensitive to the changing credit conditions of municipalities or other tax-exempt institutions. As of February 28, 2015, more than 97% of the Fund's invested assets were allocated to project revenue bonds. Q What were some of the main factors behind the Fund's outperformance of the Barclays Index during the six-month period ended February 28, 2015? A The Fund was well positioned to benefit from the attractive valuations and favorable supply/demand relationships which existed in the municipal bond market during the period -- particularly in the high-yield municipal market. Throughout the six-month period, municipal bonds enjoyed a healthy relative value advantage over Treasuries and other taxable bonds, which helped sustain demand levels during a period which saw relatively little new issuance of high-yield municipal bonds. Moreover, any new issues of high-yield municipal debt tended to be significantly oversubscribed by eager investors. The lack of significant new issuance in the high-yield portion of the municipal market was the most significant factor in the Fund's outperformance of the benchmark, but performance was also helped by the portfolio's having strong exposure to some of the better-performing sectors. At the end of the six-month period, for example, the Fund had 20% of invested assets allocated to the top-performing tobacco sector and roughly 18% of invested assets allocated to the outperforming charter school sector. Hospitals and continuing care retirement communities--two sectors that also fared well during the period--each accounted for roughly 16% of the Fund's invested assets as of period end. As for individual investments, one of the top-performing Fund holdings during the period was a California (Golden State) Tobacco Bond backed by proceeds from the settlement of lawsuits filed by states against the tobacco industry. Other standout performers in the portfolio during the period included securities issued by the Esperanza Academy, a charter school in Pennsylvania, and by Highland Hospitals, a hospital group in West Virginia. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 5 Among the more disappointing performers in the Fund's portfolio during the period was an industrial development bond backed by a pollution control project in Erie County, NY. Q Did you invest the Fund in any derivative securities during the six-month period ended February 28, 2015? A No, the Fund had no exposure to derivatives during the period. Q Did the Fund's current yield, or dividend, change significantly (either positively or negatively) during the six-month period ended February 28, 2015? A The Fund's distribution yield did go down slightly during the six-month period because the Fund's net asset value increased while distribution rates remained about the same. We kept the Fund fully invested during the period, however, given our favorable view of the health of the high-yield municipal market and the extraordinarily low yields available in the bond market. That positioning helped the Fund to generate an above-average yield compared with its Lipper peer group, despite the relatively low yields (by historical standards) available in the overall market. Q What is your investment outlook? A We maintain a positive near-term outlook on the performance potential of higher-yielding municipal bonds. Against a backdrop of persistent growth of the overall U.S. economy and low absolute interest rates, demand for high- yield municipal bonds should continue to exceed supply, keeping municipal bond yields more attractive than those of securities of comparable credit quality and maturity in the taxable bond market. While investment-grade municipal bond issuance has been increasing, we have not yet seen noticeable growth in new issues of higher-yielding, lower-quality tax-exempt bonds. With favorable pricing and strong demand, we think that high-yield municipal debt should continue to perform relatively well. 6 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Please refer to the Schedule of Investments on pages 15-24 for a full listing of Fund securities. Investments in high-yield or lower rated securities are subject to greater-than- average price volatility, illiquidity and possibility of default. When interest rates rise, the prices of fixed-income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed income securities in the fund will generally rise. Investments in the Fund are subject to possible loss due to the financial failure of issuers of underlying securities and their inability to meet their debt obligations. Prepayment risk is the chance that an issuer may exercise its right to prepay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income and lose the opportunity for additional price appreciation. The value of municipal securities can be adversely affected by changes in financial condition of municipal issuers, lower revenues, and regulatory and political developments. The Fund is non-diversified, which means that it can invest a large percentage of its assets in the securities of any one or more issuers. This increases the Fund's potential risk exposure. The Fund may use derivatives, such as options, futures, inverse floating rate obligations, swaps, and others, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on Fund performance. Derivatives may have a leveraging effect on the Fund. A portion of income may be subject to local, state, federal, and/or alternative minimum tax. Capital gains, if any, are subject to a capital gains tax. At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making it more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. These risks may increase share price volatility. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Pioneer Investments for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is not a guarantee of future results. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 7 Portfolio Summary | 2/28/15 Sector Distribution -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] Health 31.2% Special Revenues 23.7% Education 20.8% Various Revenues 9.6% Pollution Control Revenue 8.8% Transportation 2.9% General Obligation 2.3% Insured 0.6% Reserves 0.1% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total investment portfolio)* 1. City of Philippi West Virginia, Alderson-Broaddus College, 7.75%, 10/1/44 5.06% ---------------------------------------------------------------------------------------- 2. Sanger Industrial Development Corp., Texas Pellets, Inc., 8.0%, 7/1/38 3.29 ---------------------------------------------------------------------------------------- 3. Commonwealth of Puerto Rico, 8.0%, 7/1/35 2.34 ---------------------------------------------------------------------------------------- 4. Golden State Tobacco Securitization Corp., 5.75%, 6/1/47 2.10 ---------------------------------------------------------------------------------------- 5. Washington State Housing Finance Commission, Skyline at First Hill Project, 5.625%, 1/1/38 2.07 ---------------------------------------------------------------------------------------- 6. Pennsylvania Economic Development Financing Authority, US Airways Group Series B, 8.0%, 5/1/29 2.00 ---------------------------------------------------------------------------------------- 7. Tobacco Settlement Financing Corp., New Jersey, 5.0%, 6/1/41 1.99 ---------------------------------------------------------------------------------------- 8. Michigan Strategic Fund, CFP Michigan II LLC, Floating Rate Note, 3/1/40 1.53 ---------------------------------------------------------------------------------------- 9. TSASC, Inc., New York, Series 1, 5.125%, 6/1/42 1.51 ---------------------------------------------------------------------------------------- 10. Iowa Tobacco Settlement Authority, 5.625%, 6/1/46 1.50 ---------------------------------------------------------------------------------------- * This list excludes temporary cash investments and derivative instruments. The portfolio is actively managed, and current holdings may be different. The holdings listed should not be considered recommendations to buy or sell any security listed. 8 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Prices and Distributions | 2/28/15 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 2/28/15 8/31/14 -------------------------------------------------------------------------------- A $ 7.43 $ 7.27 -------------------------------------------------------------------------------- C $ 7.44 $ 7.28 -------------------------------------------------------------------------------- Y $ 7.34 $ 7.18 -------------------------------------------------------------------------------- Distributions per Share: 9/1/14-2/28/15 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $ 0.1990 $ -- $ -- -------------------------------------------------------------------------------- C $ 0.1713 $ -- $ -- -------------------------------------------------------------------------------- Y $ 0.2032 $ -- $ -- -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Barclays High Yield Municipal Bond Index is an unmanaged measure of the performance of the high-yield municipal bond market. Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. It is not possible to invest directly in an index. The index defined here pertains to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts shown on pages 10-12. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 9 Performance Update | 2/28/15 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer High Income Municipal Fund at public offering price during the periods shown, compared to that of the Barclays High Yield Municipal Bond Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Barclays Net Public High Yield Asset Offering Municipal Value Price Bond Period (NAV) (POP) Index -------------------------------------------------------------------------------- Life-of-Class (10/17/06) 2.84% 2.28% 4.60% 5 Years 5.77 4.80 8.04 1 Year 10.52 5.48 9.48 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 0.90% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer High Income Barclays High Yield Municipal Fund Municipal Bond Index 10/31/2006 $ 9,550 $ 10,000 2/28/2007 $ 9,909 $ 10,270 2/29/2008 $ 8,948 $ 9,569 2/28/2009 $ 6,836 $ 7,805 2/28/2010 $ 9,095 $ 9,878 2/28/2011 $ 9,397 $ 10,337 2/29/2012 $ 9,947 $ 11,800 2/28/2013 $ 11,716 $ 13,498 2/28/2014 $ 10,896 $ 13,282 2/28/2015 $ 12,043 $ 14,541 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. POP returns reflect deduction of maximum 4.50% sales charge. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 10 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Performance Update | 2/28/15 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C shares of Pioneer High Income Municipal Fund during the periods shown, compared to that of the Barclays High Yield Municipal Bond Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Barclays High Yield Municipal If If Bond Period Held Redeemed Index -------------------------------------------------------------------------------- Life-of-Class (10/17/06) 2.01% 2.01% 4.60% 5 Years 5.03 5.03 8.04 1 Year 9.84 9.84 9.48 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.66% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer High Income Barclays High Yield Municipal Fund Municipal Bond Index 10/31/2006 $ 10,000 $ 10,000 2/28/2007 $ 10,329 $ 10,270 2/29/2008 $ 9,219 $ 9,569 2/28/2009 $ 6,990 $ 7,805 2/28/2010 $ 9,217 $ 9,878 2/28/2011 $ 9,471 $ 10,337 2/29/2012 $ 9,951 $ 11,800 2/28/2013 $ 11,635 $ 13,498 2/28/2014 $ 10,725 $ 13,282 2/28/2015 $ 11,780 $ 14,541 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 11 Performance Update | 2/28/15 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer High Income Municipal Fund during the periods shown, compared to that of the Barclays High Yield Municipal Bond Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Barclays Net High Yield Asset Municipal Value Bond Period (NAV) Index -------------------------------------------------------------------------------- Life-of-Class (10/17/06) 2.82% 4.60% 5 Years 5.99 8.04 1 Year 10.77 9.48 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 0.71% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer High Income Barclays High Yield Municipal Fund Municipal Bond Index 10/31/2006 $ 5,000,000 $ 5,000,000 2/28/2007 $ 5,187,054 $ 5,135,163 2/29/2008 $ 4,644,235 $ 4,784,639 2/28/2009 $ 3,552,200 $ 3,902,577 2/28/2010 $ 4,701,409 $ 4,939,057 2/28/2011 $ 4,880,716 $ 5,168,354 2/29/2012 $ 5,170,926 $ 5,900,058 2/28/2013 $ 6,097,347 $ 6,748,911 2/28/2014 $ 5,677,689 $ 6,641,049 2/28/2015 $ 6,289,167 $ 7,270,605 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 12 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Comparing Ongoing Fund Expenses As a shareowner in the Fund, you incur two types of costs: (1) ongoing costs, including management fees, distribution and/or service (12b-1) fees, and other Fund expenses; and (2) transaction costs, including sales charges (loads) on purchase payments. This example is intended to help you understand your ongoing expenses (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 at the beginning of the Fund's latest six-month period and held throughout the six months. Using the Tables -------------------------------------------------------------------------------- Actual Expenses The first table below provides information about actual account values and actual expenses. You may use the information in this table, together with the amount you invested, to estimate the expenses that you paid over the period as follows: 1. Divide your account value by $1,000 Example: an $8,600 account value (divided by) $1,000 = 8.6 2. Multiply the result in (1) above by the corresponding share class's number in the third row under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. Expenses Paid on a $1,000 Investment in Pioneer High Income Municipal Fund Based on actual returns from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 Value on 9/1/14 -------------------------------------------------------------------------------- Ending Account Value $1,049.90 $1,045.90 $1,051.10 (after expenses) on 2/28/15 -------------------------------------------------------------------------------- Expenses Paid $ 4.47 $ 8.27 $ 3.61 During Period* -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio of 0.88%, 1.63% and 0.71% for Class A, Class C and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 181/365 (to reflect the one-half year period). Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 13 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer High Income Municipal Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 Value on 9/1/14 -------------------------------------------------------------------------------- Ending Account Value $1,020.43 $1,016.71 $1,021.27 (after expenses) on 2/28/15 -------------------------------------------------------------------------------- Expenses Paid $ 4.41 $ 8.15 $ 3.56 During Period* -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio of 0.88%, 1.63% and 0.71% for Class A, Class C and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 181/365 (to reflect the one-half year period). 14 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Schedule of Investments | 2/28/15 (unaudited) -------------------------------------------------------------------------------------------------- Principal Floating Amount ($) Rate (b) Value -------------------------------------------------------------------------------------------------- MUNICIPAL BONDS -- 97.9% (e) Alaska -- 0.2% 1,250,000 Northern Tobacco Securitization Corp., 5.0%, 6/1/46 $ 1,006,362 -------------------------------------------------------------------------------------------------- Arizona -- 1.0% 1,000,000 The Industrial Development Authority of the County of Pima, Desert Heights Charter School, 7.0%, 5/1/34 $ 1,047,400 3,000,000 The Industrial Development Authority of the County of Pima, Desert Heights Charter School, 7.25%, 5/1/44 3,146,970 725,000 The Industrial Development Authority of the County of Pima, Legacy Transition Charter School, 8.5%, 7/1/39 816,589 ------------- $ 5,010,959 -------------------------------------------------------------------------------------------------- California -- 13.9% 5,040,000 California County Tobacco Securitization Agency, Sonoma County Securitization Corp., 5.125%, 6/1/38 $ 4,208,299 1,880,000 California County Tobacco Securitization Agency, Sonoma County Securitization Corp., 5.25%, 6/1/45 1,564,856 6,755,000 California County Tobacco Securitization Agency, Merced County Tobacco Funding Corp., 5.25%, 6/1/45 5,566,255 2,715,000 California County Tobacco Securitization Agency, Los Angeles County Securitization Corp., 5.6%, 6/1/36 2,511,646 3,800,000 California County Tobacco Securitization Agency, Los Angeles County Securitization Corp., 5.7%, 6/1/46 3,380,442 6,300,000 California Municipal Finance Authority, Santa Rosa Academy, 6.0%, 7/1/42 6,651,099 830,000 California School Finance Authority, View Park Elementary School, 5.625%, 10/1/34 845,040 1,475,000 California School Finance Authority, View Park Elementary School, 5.875%, 10/1/44 1,504,161 1,000,000 California School Finance Authority, View Park Elementary School, 6.0%, 10/1/49 1,019,050 3,230,000 California School Finance Authority, View Park High School Series A, 7.125%, 10/1/48 3,560,849 3,000,000 California School Finance Authority, Classical Academies Project Series A, 7.375%, 10/1/43 3,498,030 2,500,000 California Statewide Communities Development Authority, Loma Linda University Medical Center, 5.5%, 12/1/54 2,762,100 1,560,000 California Statewide Communities Development Authority, California Baptist University, 6.125%, 11/1/33 1,771,536 4,030,000 California Statewide Communities Development Authority, California Baptist University, 6.375%, 11/1/43 4,600,245 2,000,000 California Statewide Communities Development Authority, Lancer Educational Housing, 7.5%, 6/1/42 2,230,100 315,559 California Statewide Communities Development Authority, Micrology Holdings Project, 9.0%, 12/1/38 (c) 3 12,500,000 Golden State Tobacco Securitization Corp., 5.75%, 6/1/47 10,677,000 The accompanying notes are an integral part of these financial statements. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 15 Schedule of Investments | 2/28/15 (unaudited) (continued) -------------------------------------------------------------------------------------------------- Principal Floating Amount ($) Rate (b) Value -------------------------------------------------------------------------------------------------- California -- (continued) 130,000 Golden State Tobacco Securitization Corp., 6/1/37 $ 109,204 4,000,000 Pittsburg Unified School District, 9/1/38 (d)(f) 887,000 3,925,000 Pittsburg Unified School District, 9/1/39 (d)(f) 804,743 2,500,000 Pittsburg Unified School District, 9/1/41 (d)(f) 736,275 1,925,000 Pittsburg Unified School District, 9/1/42 (d)(f) 539,962 5,000,000 River Islands Public Financing Authority, 5.5%, 9/1/45 5,093,750 6,000,000 Tobacco Securitization Authority of Southern California, San Diego County Securitization Corp., 5.0%, 6/1/37 5,106,900 2,800,000 Tobacco Securitization Authority of Southern California, San Diego County Securitization Corp., 5.125%, 6/1/46 2,339,372 ------------- $ 71,967,917 -------------------------------------------------------------------------------------------------- Colorado -- 2.7% 2,000,000 Colorado Educational & Cultural Facilities Authority, Rocky Mountain Classical Charter School, 8.0%, 9/1/43 $ 2,049,440 5,000,000 Colorado Educational & Cultural Facilities Authority, Rocky Mountain Classical Charter School, 8.125%, 9/1/48 5,130,800 8,000,000 Kremmling Memorial Hospital District, 7.125%, 12/1/45 6,619,360 ------------- $ 13,799,600 -------------------------------------------------------------------------------------------------- District of Columbia -- 0.8% 735,000 District of Columbia Tobacco Settlement Financing Corp., 6.75%, 5/15/40 $ 735,066 3,500,000 District of Columbia, Provident Group Howard Properties LLC, 5.0%, 10/1/45 3,588,725 ------------- $ 4,323,791 -------------------------------------------------------------------------------------------------- Florida -- 2.9% 5,000,000 Alachua County Health Facilities Authority, Terraces Bonita Springs Project Series A, 8.125%, 11/15/46 $ 5,811,250 5,000,000 Capital Trust Agency, Inc., Million Air One LLC, 7.75%, 1/1/41 4,811,950 1,820,000 County of Liberty Florida, Twin Oaks Project 8.25%, 7/1/28 (c) 404,550 1,000,000 Florida Development Finance Corp., Tuscan Isle Obligated Group, 7.0%, 6/1/35 1,034,610 3,000,000 Florida Development Finance Corp., Tuscan Isle Obligated Group, 7.0%, 6/1/45 3,074,520 ------------- $ 15,136,880 -------------------------------------------------------------------------------------------------- Hawaii -- 0.2% 1,000,000 State of Hawaii Department of Budget & Finance, Craigside Project Series A, 9.0%, 11/15/44 $ 1,254,460 -------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 16 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------------- Principal Floating Amount ($) Rate (b) Value -------------------------------------------------------------------------------------------------- Illinois -- 4.0% 526,959 Illinois Finance Authority, Clare Oaks Project Series C2, 11/15/52 $ 144,424 526,959 Illinois Finance Authority, Clare Oaks Project Series C3 11/15/52 90,842 2,634,795 Illinois Finance Authority, Clare Oaks Project Series C1, 11/15/52 (d) 91,875 485,000 Illinois Finance Authority, Clare Oaks Project Series A3, 7.0%, 11/15/17 485,194 1,250,000 Illinois Finance Authority, Norwegian American Hospital, Inc., 7.625%, 9/15/28 1,403,862 4,845,000 Illinois Finance Authority, Norwegian American Hospital, Inc., 7.75%, 9/15/38 5,631,683 4,213,653 4.00 Illinois Finance Authority, Clare Oaks Project Series E, Floating Rate Note, 11/15/52 2,695,432 2,580,000 Southwestern Illinois Development Authority, Village of Sauget, 5.625%, 11/1/26 2,210,028 680,000 Southwestern Illinois Development Authority, St Claire County Comprehensive Behavioral Health Center, 6.2%, 6/1/17 699,142 7,020,000 Southwestern Illinois Development Authority, St Claire County Comprehensive Behavioral Health Center, 6.625%, 6/1/37 7,174,159 ------------- $ 20,626,641 -------------------------------------------------------------------------------------------------- Indiana -- 3.5% 1,750,000 City of Carmel Indiana, Barrington Carmel Project Series A, 7.0%, 11/15/32 $ 1,957,375 2,000,000 City of Carmel Indiana, Barrington Carmel Project Series A, 7.125%, 11/15/42 2,227,160 2,000,000 City of Carmel Indiana, Barrington Carmel Project Series A, 7.125%, 11/15/47 2,220,480 3,500,000 City of Crown Point Indiana, Wittenberg Lutheran Project Series A, 8.0%, 11/15/39 3,995,880 3,000,000 City of Gary Indiana, 2.5%, 5/1/15 3,000,450 4,000,000 Vigo County Hospital Authority, Union Hospital, Inc., 8.0%, 9/1/41 4,863,160 ------------- $ 18,264,505 -------------------------------------------------------------------------------------------------- Iowa -- 1.7% 105,000 Iowa Tobacco Settlement Authority, 5.5%, 6/1/42 $ 92,143 1,000,000 Iowa Tobacco Settlement Authority, 5.6%, 6/1/34 951,300 8,580,000 Iowa Tobacco Settlement Authority, 5.625%, 6/1/46 7,621,957 ------------- $ 8,665,400 -------------------------------------------------------------------------------------------------- Louisiana -- 0.8% 5,800,000 Tensas Parish Law Enforcement District, 10/1/26 (c)(d) $ 4,132,674 -------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 17 Schedule of Investments | 2/28/15 (unaudited) (continued) -------------------------------------------------------------------------------------------------- Principal Floating Amount ($) Rate (b) Value -------------------------------------------------------------------------------------------------- Maryland -- 0.2% 1,000,000 Maryland Health & Higher Educational Facilities Authority, City Neighbors Project Series A, 6.75%, 7/1/44 $ 1,092,090 -------------------------------------------------------------------------------------------------- Massachusetts -- 1.4% 1,116,746 Massachusetts Development Finance Agency, Linden Ponds Series B, 11/15/56 (d) $ 6,901 1,235,770 Massachusetts Development Finance Agency, Linden Ponds Series A, 6.25%, 11/15/26 1,211,537 3,340,294 Massachusetts Development Finance Agency, Linden Ponds Series A, 6.25%, 11/15/39 3,218,006 2,000,000 Massachusetts Development Finance Agency, Advent Care Project Series A, 6.75%, 10/15/37 2,089,460 860,000 Massachusetts Development Finance Agency, Advent Care Project Series A, 7.625%, 10/15/37 971,146 3,500,000 Massachusetts Health & Educational Facilities Authority, Quincy Medical Center, 1/15/38 (c)(d) 8,960 ------------- $ 7,506,010 -------------------------------------------------------------------------------------------------- Michigan -- 8.0% 4,130,000 Charyl Stockwell Academy, 5.75%, 10/1/25 $ 4,092,665 3,000,000 Charyl Stockwell Academy, 5.9%, 10/1/35 2,956,230 1,250,000 Flint Hospital Building Authority, Hurley Medical Center, 5.25%, 7/1/39 1,193,738 1,250,000 Flint Hospital Building Authority, Hurley Medical Center, 7.375%, 7/1/35 1,440,062 5,485,000 Flint International Academy, 5.75%, 10/1/37 5,601,008 225,000 Michigan Public Educational Facilities Authority, Dr Joseph F Pollack Academic Center of Excellence, 7.25%, 4/1/20 240,728 2,020,000 Michigan Public Educational Facilities Authority, Dr Joseph F Pollack Academic Center of Excellence, 8.0%, 4/1/40 2,185,721 4,460,000 Michigan Public Educational Facilities Authority, Dadid Ellis Academy West, 5.875%, 6/1/37 4,520,656 4,000,000 6.62 Michigan Strategic Fund, CFP Taylor Governmental Center LLC, Floating Rate Note, 11/1/41 4,334,280 7,135,000 6.75 Michigan Strategic Fund, CFP Michigan II LLC, Floating Rate Note, 3/1/40 7,782,144 750,000 Michigan Tobacco Settlement Finance Authority, 6.0%, 6/1/34 661,515 6,190,000 Michigan Tobacco Settlement Finance Authority, 6.0%, 6/1/48 5,265,833 1,250,000 Michigan Tobacco Settlement Finance Authority, 6.875%, 6/1/42 1,231,212 ------------- $ 41,505,792 -------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 18 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------------- Principal Floating Amount ($) Rate (b) Value -------------------------------------------------------------------------------------------------- Minnesota -- 0.8% 2,000,000 Bloomington Port Authority, Radison Blu MOA LLC, 9.0%, 12/1/35 $ 2,331,060 1,500,000 City of Brooklyn Park Minnesota, Prarie Seeds Academy, 9.25%, 3/1/39 1,651,035 ------------- $ 3,982,095 -------------------------------------------------------------------------------------------------- Missouri -- 1.7% 5,740,000 Community Memorial Hospital District, 6.68%, 12/1/34 $ 6,002,146 2,500,000 Kirkwood Industrial Development Authority, Aberdeen Heights Series A, 8.25%, 5/15/45 2,878,650 ------------- $ 8,880,796 -------------------------------------------------------------------------------------------------- New Jersey -- 5.1% 6,000,000 New Jersey Economic Development Authority, Gloucester Marine Project, 6.625%, 1/1/37 $ 6,083,820 4,500,000 New Jersey Health Care Facilities Financing Authority, St Peters University Hospital, 6.25%, 7/1/35 4,992,975 7,000,000 Tobacco Settlement Financing Corp., New Jersey, 4.75%, 6/1/34 5,421,080 13,000,000 Tobacco Settlement Financing Corp., New Jersey, 5.0%, 6/1/41 10,099,440 ------------- $ 26,597,315 -------------------------------------------------------------------------------------------------- New Mexico -- 1.0% 6,015,000 County of Otero New Mexico, 6.0%, 4/1/28 $ 5,258,433 -------------------------------------------------------------------------------------------------- New York -- 4.9% 1,500,000 Build NYC Resource Corp., Pratt Paper NY, 5.0%, 1/1/35 $ 1,600,845 85,000 New York City Industrial Development Agency, British Airways Plc, 5.25%, 12/1/32 85,185 1,180,000 New York Counties Tobacco Trust IV, 5.0%, 6/1/45 976,403 10,000,000 New York Counties Tobacco Trust V, 6/1/38 (d) 2,408,800 2,000,000 Onondaga Civic Development Corp., St Joseph's Hospital Health Center, 5.0%, 7/1/42 2,054,280 1,000,000 Onondaga Civic Development Corp., St Joseph's Hospital Health Center, 5.125%, 7/1/31 1,082,520 4,500,000 Suffolk Tobacco Asset Securitization Corp., 6/1/44 4,522,005 10,000,000 The Erie County Industrial Development Agency, Galvstar LLC Project Series A, 10/1/30 (c)(d) 2,549,600 8,000,000 The Erie County Industrial Development Agency, Galvstar LLC Project Series B, 10/1/30 (c)(d) 2,039,680 1,795,000 The Erie County Industrial Development Agency, Galvstar LLC Project Series C, 10/1/30 (c)(d) 457,653 9,040,000 TSASC, Inc. New York, Series 1, 5.125%, 6/1/42 7,685,627 100,000 Westchester Tobacco Asset Securitization New York, 5.125%, 6/1/38 97,147 ------------- $ 25,559,745 -------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 19 Schedule of Investments | 2/28/15 (unaudited) (continued) -------------------------------------------------------------------------------------------------- Principal Floating Amount ($) Rate (b) Value -------------------------------------------------------------------------------------------------- Ohio -- 5.2% 3,000,000 Buckeye Tobacco Settlement Financing Authority, 5.75%, 6/1/34 $ 2,446,560 4,000,000 Buckeye Tobacco Settlement Financing Authority, 5.875%, 6/1/47 3,304,360 8,555,000 Buckeye Tobacco Settlement Financing Authority, 6.0%, 6/1/42 7,141,286 4,250,000 Buckeye Tobacco Settlement Financing Authority, 6.5%, 6/1/47 3,791,510 1,150,000 County of Muskingum Ohio, Genesis Healthcare System, 5.0%, 2/15/33 1,202,222 5,000,000 County of Muskingum Ohio, Genesis Healthcare System, 5.0%, 2/15/48 5,160,550 3,900,000 Southeastern Ohio Port Authority, Marietta Aera Health Care, Inc., 6.0%, 12/1/42 4,158,297 ------------- $ 27,204,785 -------------------------------------------------------------------------------------------------- Pennsylvania -- 9.0% 465,000 Allegheny County Hospital Development Authority, Ohio Valley General Hospital, 5.125%, 4/1/35 $ 463,531 3,000,000 Pennsylvania Economic Development Financing Authority, Northwestern Human Services, Inc., 5.25%, 6/1/28 3,001,830 2,005,000 Pennsylvania Economic Development Financing Authority, US Airways Group Series A, 7.5%, 5/1/20 2,347,474 8,445,000 Pennsylvania Economic Development Financing Authority, US Airways Group Series B, 8.0%, 5/1/29 10,189,821 2,500,000 Philadelphia Authority for Industrial Development, Green Woods Charter School, 5.5%, 6/15/32 2,586,275 5,200,000 Philadelphia Authority for Industrial Development, Green Woods Charter School, 5.75%, 6/15/42 5,390,580 1,000,000 Philadelphia Authority for Industrial Development, Performing Arts Charter School, 6.5%, 6/15/33 (144A) 1,024,580 3,000,000 Philadelphia Authority for Industrial Development, Performing Arts Charter School, 6.75%, 6/15/43 (144A) 3,082,740 6,000,000 Philadelphia Authority for Industrial Development, Nueva Esperanza, Inc., 8.2%, 12/1/43 6,697,140 1,180,000 Philadelphia Hospitals & Higher Education Facilities Authority, Temple University Health Sytem, 5.625%, 7/1/36 1,265,975 6,000,000 Philadelphia Hospitals & Higher Education Facilities Authority, Temple University Health System, 5.625%, 7/1/42 6,417,780 4,000,000 Pottsville Hospital Authority Pennsylvania, Schuylkill Health System, 6.5%, 7/1/28 4,343,680 ------------- $ 46,811,406 -------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 20 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------------- Principal Floating Amount ($) Rate (b) Value -------------------------------------------------------------------------------------------------- Puerto Rico -- 2.3% 14,300,000 Commonwealth of Puerto Rico, 8.0%, 7/1/35 (f) $ 11,922,911 -------------------------------------------------------------------------------------------------- Rhode Island -- 0.1% 2,065,000 Central Falls Detention Facility Corp., 7.25%, 7/15/35 (c) $ 516,229 -------------------------------------------------------------------------------------------------- Texas -- 10.3% 5,500,000 Arlington Higher Education Finance Corp., LTTS Charter School, Inc., 7.125%, 3/1/44 $ 5,851,065 400,000 City of Celina Texas, 5.375%, 9/1/28 394,712 1,000,000 City of Celina Texas, 5.5%, 9/1/24 989,790 250,000 City of Celina Texas, 5.5%, 9/1/32 246,135 650,000 City of Celina Texas, 5.875%, 9/1/40 638,202 1,075,000 City of Celina Texas, 6.0%, 9/1/30 1,060,068 2,700,000 City of Celina Texas, 6.25%, 9/1/40 2,652,696 2,000,000 City of Houston Texas Airport System Revenue, United Airlines, Inc., 5.0%, 7/1/29 2,151,320 234,442 Gulf Coast Industrial Development Authority, Micrology Holdings LLC, 12/1/36 (c)(d) 2 1,380,000 Kinney County Public Facilities Corp., 7.0%, 11/1/25 1,248,721 15,000,000 Sanger Industrial Development Corp., Texas Pellets, Inc., 8.0%, 7/1/38 16,717,650 1,775,000 Tarrant County Cultural Education Facilities Finance Corp., Stayton at Museum Way, 8.0%, 11/15/28 1,763,001 2,250,000 Tarrant County Cultural Education Facilities Finance Corp., Mirador Project, 8.0%, 11/15/29 2,190,938 120,000 Tarrant County Cultural Education Facilities Finance Corp., MRC Crestview Project, 8.0%, 11/15/34 140,227 5,000,000 Tarrant County Cultural Education Facilities Finance Corp., Mirador Project, 8.125%, 11/15/39 4,826,500 6,350,000 Tarrant County Cultural Education Facilities Finance Corp., MRC Crestview Project, 8.125%, 11/15/44 7,404,290 5,000,000 Tarrant County Cultural Education Facilities Finance Corp., Stayton at Museum Way, 8.25%, 11/15/44 4,955,200 1,000,000 Texas Midwest Public Facility Corp., Secure Treatment Facility, 10/1/30 (c)(d) 177,300 ------------- $ 53,407,817 -------------------------------------------------------------------------------------------------- Utah -- 1.9% 1,450,000 Utah State Charter School Finance Authority, Summit Academy High School, 7.25%, 5/15/21 $ 1,590,708 1,985,000 Utah State Charter School Finance Authority, Summit Academy High School, 8.125%, 5/15/31 2,214,526 5,145,000 Utah State Charter School Finance Authority, Summit Academy High School, 8.5%, 5/15/41 5,843,434 ------------- $ 9,648,668 -------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 21 Schedule of Investments | 2/28/15 (unaudited) (continued) -------------------------------------------------------------------------------------------------- Principal Floating Amount ($) Rate (b) Value -------------------------------------------------------------------------------------------------- Virginia -- 1.3% 9,750,000 Tobacco Settlement Financing Corp., Virginia, 5.0%, 6/1/47 $ 6,990,165 -------------------------------------------------------------------------------------------------- Washington -- 2.7% 3,500,000 Washington State Housing Finance Commission, Skyline at First Hill Project, 5.625%, 1/1/27 $ 3,524,955 10,610,000 Washington State Housing Finance Commission, Skyline at First Hill Project, 5.625%, 1/1/38 10,534,987 ------------- $ 14,059,942 -------------------------------------------------------------------------------------------------- West Virginia -- 6.4% 25,000,000 City of Philippi West Virginia, Alderson-Broaddus College, 7.75%, 10/1/44 $ 25,717,502 6,345,000 West Virginia Hospital Finance Authority, Highland Hospital, 9.125%, 10/1/41 7,414,640 ------------- $ 33,132,142 -------------------------------------------------------------------------------------------------- Wisconsin -- 3.9% 500,000 Public Finance Authority, Voyager Foundation, Inc., 5.0%, 10/1/34 $ 508,190 1,245,000 Public Finance Authority, Voyager Foundation, Inc., 5.125%, 10/1/45 1,256,628 1,590,000 Public Finance Authority, Coral Academy of Science, 5.625%, 7/1/44 1,681,600 2,815,000 Public Finance Authority, Voyager Foundation Inc., 6.2%, 10/1/42 3,039,046 5,057,500 Public Finance Authority, Las Ventanas Retirement Community, 7.0%, 10/1/42 5,083,597 5,325,000 Public Finance Authority, Glenridge of Palmer Ranch, 8.25%, 6/1/46 6,284,831 2,330,000 Public Finance Authority, Searstone Project, 8.375%, 6/1/20 2,337,806 ------------- $ 20,191,698 -------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (Cost $494,452,710) $ 508,457,228 -------------------------------------------------------------------------------------------------- MUNICIPAL COLLATERALIZED DEBT OBLIGATION -- 0.0%+ 1,175,000 0.00 Non-Profit Preferred Funding Trust I, Floating Rate Note, 9/15/37 (144A) $ 150,564 -------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL COLLATERALIZED DEBT OBLIGATION (Cost $1,172,476) $ 150,564 -------------------------------------------------------------------------------------------------- TOTAL INVESTMENT IN SECURITIES -- 97.9% (Cost $495,625,186) (a) (g) $ 508,607,792 -------------------------------------------------------------------------------------------------- OTHER ASSETS & LIABILITIES -- 2.1% $ 10,837,145 -------------------------------------------------------------------------------------------------- TOTAL NET ASSETS -- 100.0% $ 519,444,937 ================================================================================================== The accompanying notes are an integral part of these financial statements. 22 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 + Rounds to less than 0.01%. (144A) Security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold normally to qualified institutional buyers in a transaction exempt from registration. At February 28, 2015, the value of these securities amounted to $4,257,884 or 0.8% of total net assets. (a) At February 28, 2015, the net unrealized appreciation on investments based on cost for federal income tax purposes of $495,330,575 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $ 38,194,904 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (24,917,687) ------------ Net unrealized appreciation $ 13,277,217 ============ (b) Debt obligation with a variable interest rate. Rate shown is rate at end of period. (c) Security is in default and is non-income producing. (d) Security issued with a zero coupon. Income is earned through accretion of discount. (e) Consists of Revenue Bonds unless otherwise indicated. (f) Represents a General Obligation bond. (g) The concentration of investments by type of obligation/market sector is as follows: Revenue Bonds: Health 31.2% Special Revenues 23.7% Education 20.8% Various Revenues 9.6% Pollution Control Revenue 8.8% Transportation 2.9% General Obligation 2.3% Insured 0.6% Reserves 0.1% -------------------------------------------------------------------------------- 100.0% ================================================================================ Purchases and sales of securities (excluding temporary cash investments) for the six months ended February 28, 2015 aggregated $141,133,488 and $117,802,145, respectively. Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below. Level 1 - quoted prices in active markets for identical securities. Level 2 - other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.) See Notes to Financial Statements -- Note 1A. Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments) See Notes to Financial Statements -- Note 1A. Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued using fair value methods (other than prices supplied by independent pricing services or broker-dealers) as Level 3. See Notes to Financial Statements -- Note 1A. The accompanying notes are an integral part of these financial statements. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 23 Schedule of Investments | 2/28/15 (unaudited) (continued) The following is a summary of the inputs used as of February 28, 2015, in valuing the Fund's investments: -------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------------------- Municipal Bonds $ -- $508,457,228 $ -- $508,457,228 Municipal Collateralized Debt Obligation -- 150,564 -- 150,564 -------------------------------------------------------------------------------------------- Total $ -- $508,607,792 $ -- $508,607,792 ============================================================================================ During the six-months ended February 28, 2015, there were no transfers between Levels 1, 2 and 3. The accompanying notes are an integral part of these financial statements. 24 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Statement of Assets and Liabilities | 2/28/15 (unaudited) ASSETS: Investment in securities, at value (cost $495,625,186) $508,607,792 Cash 3,033,783 Receivables -- Investment securities sold 1,050,917 Fund shares sold 2,187,663 Interest 9,135,503 Other Assets 39,103 ---------------------------------------------------------------------------------- Total assets $524,054,761 ================================================================================== LIABILITIES: Payables -- Investment securities purchased $ 2,413,400 Fund shares repurchased 1,560,368 Dividends 441,257 Due to affiliates 78,453 Trustee fees 3,092 Accrued expenses 113,254 ---------------------------------------------------------------------------------- Total liabilities $ 4,609,824 ================================================================================== NET ASSETS: Paid-in capital $559,703,490 Undistributed net investment income 8,649,352 Accumulated net realized loss on investments (61,890,511) Net unrealized appreciation on investments 12,982,606 ---------------------------------------------------------------------------------- Total net assets $519,444,937 ================================================================================== NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $245,851,728/33,077,534 shares) $ 7.43 Class C (based on $153,517,026/20,647,883 shares) $ 7.44 Class Y (based on $120,076,183/16,365,120 shares) $ 7.34 MAXIMUM OFFERING PRICE: Class A ($7.43 (divided by) 95.5%) $ 7.78 ================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 25 Statement of Operations (unaudited) For the Six Months Ended 2/28/15 INVESTMENT INCOME: Interest $15,847,143 ---------------------------------------------------------------------------------- Total investment income $ 15,847,143 ---------------------------------------------------------------------------------- EXPENSES: Management fees $ 1,239,429 Transfer agent fees Class A 10,690 Class C 3,954 Class Y 790 Distribution fees Class A 300,448 Class C 742,059 Shareholder communications expense 137,448 Administrative reimbursement 74,230 Custodian fees 4,598 Registration fees 17,098 Professional fees 57,782 Printing expense 6,337 Fees and expenses of nonaffiliated Trustees 8,320 Miscellaneous 46,481 ---------------------------------------------------------------------------------- Total expenses $ 2,649,664 ---------------------------------------------------------------------------------- Net investment income $ 13,197,479 ---------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS: Net realized loss on investments $ (8,242,310) ---------------------------------------------------------------------------------- Change in net unrealized appreciation on investments $ 18,721,057 ---------------------------------------------------------------------------------- Net gain on investments $ 10,478,747 ---------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 23,676,226 ================================================================================== The accompanying notes are an integral part of these financial statements. 26 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Statements of Changes in Net Assets ------------------------------------------------------------------------------------------ Six Months Ended 2/28/15 Year Ended (unaudited) 8/31/14 ------------------------------------------------------------------------------------------ FROM OPERATIONS: Net investment income $ 13,197,479 $ 28,710,919 Net realized gain (loss) on investments (8,242,310) 2,409,680 Change in net unrealized appreciation (depreciation) on investments 18,721,057 3,527,217 ------------------------------------------------------------------------------------------ Net increase in net assets resulting from operations $ 23,676,226 $ 34,647,816 ------------------------------------------------------------------------------------------ DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.20 and $0.44 per share, respectively) $ (6,504,336) $ (14,679,335) Class C ($0.17 and $0.39 per share, respectively) (3,460,383) (8,896,752) Class Y ($0.20 and $0.45 per share, respectively) (3,003,688) (6,197,281) ------------------------------------------------------------------------------------------ Total distributions to shareowners $ (12,968,407) $ (29,773,368) ------------------------------------------------------------------------------------------ FROM FUND SHARE TRANSACTIONS: Net proceeds from sale of shares $ 89,784,371 $ 171,100,856 Reinvestment of distributions 10,550,363 23,543,400 Cost of shares repurchased (81,580,261) (274,646,597) ------------------------------------------------------------------------------------------ Net increase (decrease) in net assets resulting from Fund share transactions $ 18,754,473 $ (80,002,341) ------------------------------------------------------------------------------------------ Net increase (decrease) in net assets $ 29,462,292 $ (75,127,893) NET ASSETS: Beginning of period 489,982,645 565,110,538 ------------------------------------------------------------------------------------------ End of period $ 519,444,937 $ 489,982,645 ------------------------------------------------------------------------------------------ Undistributed net investment income $ 8,649,352 $ 8,420,280 ========================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 27 Statements of Changes in Net Assets (continued) ------------------------------------------------------------------------------------------ '15 Shares '15 Amount (unaudited) (unaudited) '14 Shares '14 Amount ------------------------------------------------------------------------------------------ Class A Shares sold 5,674,000 $ 41,742,620 13,364,645 $ 95,629,792 Reinvestment of distributions 768,461 5,669,884 1,762,944 12,632,777 Less shares repurchased (6,409,377) (47,145,427) (16,892,168) (120,665,382) ------------------------------------------------------------------------------------------ Net increase (decrease) 33,084 $ 267,077 (1,764,579) $ (12,402,813) ========================================================================================== Class C Shares sold 1,825,535 $ 13,485,087 3,088,934 $ 22,128,792 Reinvestment of distributions 380,939 2,811,541 969,680 6,948,501 Less shares repurchased (2,101,932) (15,457,409) (10,680,691) (76,310,340) ------------------------------------------------------------------------------------------ Net increase (decrease) 104,542 $ 839,219 (6,622,077) $ (47,233,047) ========================================================================================== Class Y Shares sold 4,740,781 $ 34,556,664 7,547,136 $ 53,342,272 Reinvestment of distributions 283,962 2,068,938 560,257 3,962,122 Less shares repurchased (2,614,081) (18,977,425) (11,017,755) (77,670,875) ------------------------------------------------------------------------------------------ Net increase (decrease) 2,410,662 $ 17,648,177 (2,910,362) $ (20,366,481) ========================================================================================== The accompanying notes are an integral part of these financial statements. 28 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Financial Highlights -------------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year Year Year Year 2/28/15 Ended Ended Ended Ended Ended (unaudited) 8/31/14 8/31/13 8/31/12 8/31/11 8/31/10 -------------------------------------------------------------------------------------------------------------------------------- Class A Net asset value, beginning of period $ 7.27 $ 7.19 $ 7.94 $ 7.58 $ 7.97 $ 6.84 -------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.20 $ 0.43 $ 0.53 $ 0.47 $ 0.53 $ 0.55 Net realized and unrealized gain (loss) on investments 0.16 0.09 (0.84) 0.34 (0.40) 1.12 -------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.36 $ 0.52 $ (0.31) $ 0.81 $ 0.13 $ 1.67 -------------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.20) $ (0.44) $ (0.44) $ (0.45) $ (0.52) $ (0.55) -------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ 0.16 $ 0.08 $ (0.75) $ 0.36 $ (0.39) $ 1.12 -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 7.43 $ 7.27 $ 7.19 $ 7.94 $ 7.58 $ 7.97 ================================================================================================================================ Total return* 4.99% 7.52% (4.26)% 11.24% 1.83% 25.15% Ratio of net expenses to average net assets 0.88%** 0.90% 0.88% 0.89% 0.88% 0.90% Ratio of net investment income (loss) to average net assets 5.51%** 5.97% 6.26% 6.25% 6.98% 7.08% Portfolio turnover rate 49%** 55% 17% 54% 65% 15% Net assets, end of period (in thousands) $245,852 $240,331 $250,163 $373,039 $378,883 $311,324 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 0.88%** 0.90% 0.88% 0.89% 0.88% 0.95% Net investment income (loss) to average net assets 5.51%** 5.97% 6.26% 6.25% 6.98% 7.03% ================================================================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. The accompanying notes are an integral part of these financial statements. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 29 Financial Highlights (continued) -------------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year Year Year Year 2/28/15 Ended Ended Ended Ended Ended (unaudited) 8/31/14 8/31/13 8/31/12 8/31/11 8/31/10 -------------------------------------------------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 7.28 $ 7.19 $ 7.94 $ 7.58 $ 7.96 $ 6.83 -------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.17 $ 0.41 $ 0.46 $ 0.41 $ 0.47 $ 0.49 Net realized and unrealized gain (loss) on investments 0.16 0.07 (0.83) 0.35 (0.39) 1.12 -------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.33 $ 0.48 $ (0.37) $ 0.76 $ 0.08 $ 1.61 -------------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.17) $ (0.39) $ (0.38) $ (0.40) $ (0.46) $ (0.48) -------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ 0.16 $ 0.09 $ (0.75) $ 0.36 $ (0.38) $ 1.13 -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 7.44 $ 7.28 $ 7.19 $ 7.94 $ 7.58 $ 7.96 ================================================================================================================================ Total return* 4.59% 6.85% (4.98)% 10.42% 1.19% 24.11% Ratio of Total expenses to average net assets 1.63%** 1.66% 1.63% 1.63% 1.63% 1.69% Ratio of net investment income (loss) to average net assets 4.76%** 5.23% 5.53% 5.50% 6.24% 6.31% Portfolio turnover rate 49%** 55% 17% 54% 65% 15% Net assets, end of period (in thousands) $153,517 $149,453 $195,290 $265,448 $244,848 $184,068 ================================================================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. The accompanying notes are an integral part of these financial statements. 30 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year Year Year Year 2/28/15 Ended Ended Ended Ended Ended (unaudited) 8/31/14 8/31/13 8/31/12 8/31/11 8/31/10 -------------------------------------------------------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 7.18 $ 7.10 $ 7.84 $ 7.49 $ 7.88 $ 6.80 -------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.19 $ 0.46 $ 0.53 $ 0.48 $ 0.53 $ 0.57 Net realized and unrealized gain (loss) on investments 0.17 0.07 (0.82) 0.33 (0.39) 1.08 -------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.36 $ 0.53 $ (0.29) $ 0.81 $ 0.14 $ 1.65 -------------------------------------------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.20) $ (0.45) $ (0.45) $ (0.46) $ (0.53) $ (0.56) -------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ 0.16 $ 0.08 $ (0.74) $ 0.35 $ (0.39) $ 1.09 -------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 7.34 $ 7.18 $ 7.10 $ 7.84 $ 7.49 $ 7.88 ================================================================================================================================ Total return* 5.11% 7.69% (4.05)% 11.43% 2.02% 24.73% Ratio of Total expenses to average net assets 0.71%** 0.71% 0.72% 0.67% 0.67% 0.67% Ratio of net investment income (loss) to average net assets 5.69%** 6.17% 6.40% 6.46% 7.21% 7.32% Portfolio turnover rate 49%** 55% 17% 54% 65% 15% Net assets, end of period (in thousands) $120,076 $100,199 $119,658 $176,664 $198,089 $77,757 ================================================================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. The accompanying notes are an integral part of these financial statements. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 31 Notes to Financial Statements | 2/28/15 (unaudited) 1. Organization and Significant Accounting Policies Pioneer High Income Municipal Fund (the Fund) is one of five portfolios comprising Pioneer Series Trust V, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as an open-end management investment company. The Fund is non-diversified. The investment objective of the Fund is to maximize total return through a combination of income that is exempt from regular federal income tax and capital appreciation. The Fund offers three classes of shares designated as Class A, Class C and Class Y shares. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board the flexibility to specify either per share voting or dollar-weighted voting when submitting matters for shareholder approval. Under per share voting, each share of a class of the Fund is entitled to one vote. Under dollar-weighted voting, a shareholder's voting power is determined not by the number of shares owned, but by the dollar value of the shares on the record date. Each share class has exclusive voting rights with respect to matters affecting only that class, including with respect to the distribution plan for that class. There is no distribution plan for Class Y shares. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles that require the management of the Fund to, among other things, make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses, and gain or loss on investments during the reporting period. Actual results could differ from those estimates. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements which are consistent with those policies generally accepted in the investment company industry: 32 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 A. Security Valuation Security transactions are recorded as of trade date. The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. Fixed income securities are valued at prices supplied by independent pricing services, which consider such factors as market prices, market events, quotations from one or more brokers, Treasury spreads, yields, maturities and ratings. Valuations may be supplemented by dealers and other sources, as required. Cash may include overnight time deposits at approved financial institutions. Securities for which independent pricing services are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of Pioneer Investment Management, Inc. (PIM), the Fund's investment adviser, pursuant to procedures adopted by the Fund's Board of Trustees. PIM's fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. PIM's fair valuation team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. At February 28, 2015, there were no securities that were valued using fair value methods (other than securities valued using prices supplied by independent pricing services or broker-dealers). B. Investment Income and Transactions Discount and premium on purchase prices of debt securities are accreted or amortized, respectively, daily into interest income on a yield-to-maturity basis with a corresponding increase or decrease in the cost basis of the security. Interest income is recorded on the accrual basis. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 33 Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. C. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no provision for federal income taxes is required. As of August 31, 2014, the Fund did not accrue any interest or penalties with respect to uncertain tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax returns filed within the prior three years remain subject to examination by Federal and State tax authorities. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. generally accepted accounting principles. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Capital accounts within the financial statements are adjusted for permanent book/tax differences to reflect tax character, but are not adjusted for temporary differences. The tax character of current year distributions payable will be determined at the end of the current taxable year. The tax character of distributions during the year ended August 31, 2014 was as follows: ---------------------------------------------------------------------------- 2014 ---------------------------------------------------------------------------- Distributions paid from: Tax-exempt income $28,444,745 Ordinary income 1,328,623 ---------------------------------------------------------------------------- Total $29,773,368 ============================================================================ The following shows the components of distributable earnings on a federal income tax-basis at August 31, 2014: ---------------------------------------------------------------------------- 2014 ---------------------------------------------------------------------------- Distributable earnings: Undistributed tax-exempt income $ 8,677,221 Capital loss carryforward (53,648,201) Dividend payable (551,552) Net unrealized depreciation (5,443,840) ---------------------------------------------------------------------------- Total $(50,966,372) ============================================================================ 34 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 The difference between book-basis and tax-basis net unrealized depreciation is attributable to adjustments related to interest on defaulted bonds, the tax treatment of premium and amortization and tax-basis adjustments on partnerships. D. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit), earned $33,791 in underwriting commissions on the sale of Class A shares during the six months ended February 28, 2015. E. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Distribution fees are calculated based on the average daily net asset value attributable to Class A and Class C shares of the Fund, respectively (see Note 4). Class Y shares do not pay distribution fees. All expenses and fees paid to the transfer agent, Pioneer Investment Management Shareholder Services, Inc. (PIMSS), for its services are allocated among the classes of shares based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). The Fund declares, as daily dividends, substantially all of its net investment income. All dividends are paid on a monthly basis. Short-term capital gain distributions, if any, may be declared with the daily dividends. Distributions to shareowners are recorded as of the ex-dividend date. Distributions paid by the Fund with respect to each class of shares are calculated in the same manner and at the same time, except that net investment income dividends to Class A, Class C, and Class Y shares can reflect different transfer agent and distribution expense rates. F. Risks At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making the Fund more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. The Fund's prospectus contains unaudited information regarding the Fund's principal risks. Please refer to that document when considering the Fund's principal risks. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 35 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, manages the Fund's portfolio. Management fees are calculated daily at the annual rate equal to 0.50% of the Fund's average daily net assets up to $500 million; 0.475% of the next $500 million of the Fund's average daily net assets and 0.45% of the Fund's average daily net assets over $1 billion. For the six months ended February 28, 2015, the effective management fee (excluding waivers and/or assumption of expenses) was equivalent to 0.50% of the Fund's average daily net assets. PIM has contractually agreed to limit ordinary operating expenses (excluding taxes, commissions, interest and extraordinary expenses) of the Fund to the extent required to reduce Fund expenses to 0.90% of the average daily net assets attributable to Class A shares. Class C and Y shares do not have an expense limitation. This expense limitation is in effect through January 1, 2016. There can be no assurance that PIM will extend the expense limitation agreement for a class of shares beyond the date referred to above. In addition, under the management and administration agreements, certain other services and costs, including accounting, regulatory reporting and insurance premiums, are paid by the Fund as administrative reimbursements. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $22,122 in management fees, administrative costs and certain other reimbursements payable to PIM at February 28, 2015. 3. Transfer Agent PIMSS, a wholly owned indirect subsidiary of UniCredit, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. In addition, the Fund reimburses PIMSS for out-of-pocket expenses incurred by PIMSS related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the six months ended February 28, 2015, such out-of-pocket expenses by class of shares were as follows: -------------------------------------------------------------------------------- Shareholder Communications: -------------------------------------------------------------------------------- Class A $ 42,273 Class C 30,786 Class Y 64,389 -------------------------------------------------------------------------------- Total $137,448 ================================================================================ Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $38,729 in transfer agent fees and out-of-pocket reimbursements payable to PIMSS at February 28, 2015. 36 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 4. Distribution Plan The Fund has adopted a Distribution Plan pursuant to Rule 12b-1 of the Investment Company Act of 1940 with respect to its Class A and Class C shares. Pursuant to the Plan, the Fund pays PFD 0.25% of the average daily net assets attributable to Class A shares as compensation for personal services and/or account maintenance services or distribution services with regard to Class A shares. Pursuant to the Plan, the Fund also pays PFD 1.00% of the average daily net assets attributable to Class C shares. The fee for Class C shares consists of a 0.25% service fee and a 0.75% distribution fee paid as compensation for personal services and/or account maintenance services or distribution services with regard to Class C shares. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $17,602 in distribution fees payable to PFD at February 28, 2015. In addition, redemptions of each class of shares (except Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class Y shares. Proceeds from the CDSCs are paid to PFD. For the six months ended February 28, 2015, CDSCs in the amount of $17,612 were paid to PFD. 5. Expense Offset Arrangements The Fund has entered into certain expense offset arrangements with PIMSS which may result in a reduction in the Fund's total expenses due to interest earned on cash held by PIMSS. For the six months ended February 28, 2015, the Fund's expenses were not reduced under such arrangements. 6. Line of Credit Facility The Fund, along with certain other funds in the Pioneer Family of Funds (the Funds), participates in a committed, unsecured revolving line of credit facility. Borrowings are used solely for temporary or emergency purposes. The Fund may borrow up to the lesser of the amount available under the facility or the limits set for borrowing by the Fund's prospectus and the 1940 Act. The credit facility in effect as of February 11, 2015 is in the amount of $215 million. Under such facility, depending on the type of loan, interest on borrowings is payable at the London Interbank Offered Rate (LIBOR) plus 0.90% (0.85% as of February 12, 2014) on an annualized basis, or the alternate base rate, which is the greater of (a) the facility's administrative agent's daily announced prime rate on the borrowing date, (b) 2% plus the federal funds rate on the Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 37 borrowing date and (c) 2% plus the overnight eurodollar rate on the borrowing date. The Funds pay an annual commitment fee to participate in the credit facility. The commitment fee is allocated among participating Funds based on an allocation schedule set forth in the credit agreement. For the six months ended February 28, 2015, the Fund had no borrowings under the credit facility. 7. Change in Independent Registered Public Accounting Firm The Board of Trustees of the Fund, with the approval and recommendation of the Audit Committee, has appointed Deloitte & Touche LLP to serve as the Fund's independent registered public accounting firm. Deloitte & Touche LLP replaced Ernst & Young LLP, which resigned as the Fund's independent registered public accounting firm, effective upon completion of the audit of the Fund's financial statements for the fiscal year ended August 31, 2013. During the periods that Ernst & Young LLP served as the Fund's independent registered public accounting firm, including the Fund's fiscal years ended August 31, 2013 and August 31, 2012, Ernst & Young LLP's reports on the financial statements of the Fund have not contained an adverse opinion or disclaimer of opinion and have not been qualified or modified as to uncertainty, audit scope or accounting principles. Further, there have been no disagreements with Ernst & Young LLP on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which, if not resolved to the satisfaction of Ernst & Young LLP would have caused Ernst & Young LLP to make reference to the subject matter of the disagreement in connection with its report on the financial statements. In addition, there have been no reportable events of the kind described in Item 304 (a)(1)(v) of Regulation S-K under the Securities Exchange Act of 1934. 38 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Approval of Investment Advisory Agreement Pioneer Investment Management, Inc. (PIM) serves as the investment adviser to Pioneer High Income Municipal Fund (the Fund) pursuant to an investment advisory agreement between PIM and the Fund. In order for PIM to remain the investment adviser of the Fund, the Trustees of the Fund must determine annually whether to renew the investment advisory agreement for the Fund. The contract review process began in January 2014 as the Trustees of the Fund agreed on, among other things, an overall approach and timeline for the process. Contract review materials were provided to the Trustees in March 2014 and July 2014. Supplemental contract review materials were provided to the Trustees in September 2014. In addition, the Trustees reviewed and discussed the Fund's performance at regularly scheduled meetings throughout the year, and took into account other information related to the Fund provided to the Trustees at regularly scheduled meetings, in connection with the review of the Fund's investment advisory agreement. In March 2014, the Trustees, among other things, discussed the memorandum provided by Fund counsel that summarized the legal standards and other considerations that are relevant to the Trustees in their deliberations regarding the renewal of the investment advisory agreement, and reviewed and discussed the qualifications of the investment management teams, as well as the level of investment by the Fund's portfolio managers in the Fund. In July 2014, the Trustees, among other things, reviewed the Fund's management fee and total expense ratios, the financial statements of PIM and its parent companies, the profitability analyses provided by PIM, and possible economies of scale. The Trustees also reviewed the profitability of the institutional business of PIM and PIM's affiliate, Pioneer Institutional Asset Management, Inc. (together with PIM, "Pioneer"), as compared to that of PIM's fund management business, and considered the differences between the fees and expenses of the Fund and the fees and expenses of Pioneer's institutional accounts, as well as the different services provided by PIM to the Fund and by Pioneer to the institutional accounts. The Trustees further considered contract review materials in September 2014. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 39 At a meeting held on September 16, 2014, based on their evaluation of the information provided by PIM and third parties, the Trustees of the Fund, including the Independent Trustees voting separately, unanimously approved the renewal of the investment advisory agreement for another year. In considering the renewal of the investment advisory agreement, the Trustees considered various factors that they determined were relevant, including the factors described below. In all quintile rankings referred to throughout this disclosure, first quintile is most favorable to the Fund's shareowners. The Trustees did not identify any single factor as the controlling factor in determining to approve the renewal of the agreement. Nature, Extent and Quality of Services The Trustees considered the nature, extent and quality of the services that had been provided by PIM to the Fund, taking into account the investment objective and strategy of the Fund. The Trustees reviewed the terms of the investment advisory agreement. The Trustees also reviewed PIM's investment approach for the Fund and its research process. The Trustees considered the resources of PIM and the personnel of PIM who provide investment management services to the Fund. They also reviewed the amount of non- Fund assets managed by the portfolio managers of the Fund. The Trustees considered the non-investment resources and personnel of PIM involved in PIM's services to the Fund, including PIM's compliance and legal resources and personnel. The Trustees noted the substantial attention and high priority given by PIM's senior management to the Pioneer fund complex. The Trustees considered that PIM supervises and monitors the performance of the Fund's service providers and provides the Fund with personnel (including Fund officers) and other resources that are necessary for the Fund's business management and operations. The Trustees also considered that, as administrator, PIM is responsible for the administration of the Fund's business and other affairs. The Trustees considered the fees paid to PIM for the provision of administration services. Based on these considerations, the Trustees concluded that the nature, extent and quality of services that had been provided by PIM to the Fund were satisfactory and consistent with the terms of the investment advisory agreement. 40 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Performance of the Fund In considering the Fund's performance, the Trustees regularly review and discuss analysis and data prepared by PIM and information comparing the Fund's performance with the performance of its peer group of funds as classified by each of Morningstar, Inc. (Morningstar) and Lipper, and with the performance of the Fund's benchmark index. They also discuss the Fund's performance with PIM on a regular basis. The Trustees confirmed that these regular reviews and discussions were factored into the Trustees' deliberations concerning the renewal of the advisory agreement. For purposes of their contract renewal deliberations, the Trustees considered the discussions held throughout the year regarding the Fund's performance and the performance results of the Fund over various time periods, including the Fund's performance results for periods ended June 30, 2014. The Trustees indicated that they were satisfied with PIM's investment discipline and approach in the prevailing market conditions, notwithstanding relatively poor peer comparisons of total return over the 1- and 3-year periods. Management Fee and Expenses The Trustees considered information showing the fees and expenses of the Fund in comparison to the management fees and expense ratios of its peer group of funds as classified by Morningstar and also to the expense ratios of a peer group of funds selected on the basis of criteria determined by the Independent Trustees for this purpose using data provided by Strategic Insight Mutual Fund Research and Consulting, LLC (Strategic Insight), an independent third party. The Trustees considered that the Fund's management fee for the twelve months ended June 30, 2014 was in the third quintile relative to the management fees paid by other funds in its Morningstar peer group for the comparable period. The Trustees also considered the breakpoints in the management fee schedule and the reduced fee rates above certain asset levels. The Trustees considered that the expense ratio of the Fund's Class A shares for the twelve months ended June 30, 2014 was in the fourth quintile relative to its Morningstar peer group and in the fourth quintile relative its Strategic Insight peer group, in each case for the comparable period. The Trustees considered that the expense ratio of the Fund's Class A shares was only four basis points higher than the median expense ratio of its Morningstar peer group. The Trustees considered the impact of transfer agency, sub-transfer agency, and other non-management fee expenses on the expense ratios of the Fund, and noted the impact of expenses Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 41 relating to small accounts and omnibus accounts on transfer and sub-transfer agency expenses generally. The Trustees noted that they separately review the Fund's transfer agency, sub-transfer agency and intermediary arrangements. The Trustees reviewed management fees charged by Pioneer to institutional and other clients, including publicly offered European funds sponsored by affiliates of Pioneer, unaffiliated U.S. registered investment companies (in a sub-advisory capacity), and unaffiliated foreign and domestic separate accounts. The Trustees also considered PIM's costs in providing services to the Fund and Pioneer's costs in providing services to the other clients and considered the differences in management fees and profit margins for Fund and non-Fund services. In evaluating the fees associated with Pioneer's client accounts, the Trustees took into account the respective demands, resources and complexity associated with the Fund and client accounts. The Trustees noted that, in some instances, the fee rates for those clients were lower than the management fee for the Fund and considered that, under the investment advisory agreement with the Fund, PIM performs additional services for the Fund that it does not provide to those other clients or services that are broader in scope, including oversight of the Fund's other service providers and activities related to compliance and the extensive regulatory and tax regimes to which the Fund is subject. The Trustees also considered the different entrepreneurial risks associated with PIM's management of the Fund and Pioneer's management of the other client accounts. The Trustees concluded that the management fee payable by the Fund to PIM was reasonable in relation to the nature and quality of the services provided by PIM to the Fund. Profitability The Trustees considered information provided by PIM regarding the profitability of PIM with respect to the advisory services provided by PIM to the Fund, including the methodology used by PIM in allocating certain of its costs to the management of the Fund. The Trustees also considered PIM's profit margin in connection with the overall operation of the Fund. They further reviewed the financial results realized by PIM and its affiliates from non-fund businesses. The Trustees considered PIM's profit margins with respect to the Fund in comparison to the limited industry data available and noted that the profitability of any adviser was affected by numerous factors, including its organizational structure and method for allocating expenses. The Trustees concluded that PIM's profitability with respect to the management of the Fund was not unreasonable. 42 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 Economies of Scale The Trustees considered PIM's views relating to economies of scale in connection with the Pioneer Funds as fund assets grow and the extent to which any such economies of scale are shared with funds and fund shareholders. The Trustees noted the breakpoints in the management fee schedule. The Trustees recognize that economies of scale are difficult to identify and quantify, and that, among other factors that may be relevant, are the following: fee levels, expense subsidization, investment by PIM in research and analytical capabilities and PIM's commitment and resource allocation to the Fund. The Trustees noted that profitability also may be an indicator of the availability of any economies of scale, although profitability may vary for other reasons including due to reductions in expenses. The Trustees concluded that economies of scale, if any, were being appropriately shared with the Funds. Other Benefits The Trustees considered the other benefits to PIM from its relationship with the Fund. The Trustees considered the character and amount of fees paid by the Fund, other than under the investment advisory agreement, for services provided by PIM and its affiliates. The Trustees further considered the revenues and profitability of PIM's businesses other than the fund business. Pioneer is the principal U.S. asset management business of Pioneer Global Asset Management, the worldwide asset management business of UniCredit Group, which manages over $150 billion in assets (including the Funds). Pioneer and the Funds receive reciprocal intangible benefits from the relationship, including mutual brand recognition and, for the Funds, direct and indirect access to the resources of a large global asset manager. The Trustees concluded that any such benefits received by Pioneer as a result of its relationship with the Funds were reasonable and their consideration of the advisory agreement between the Fund and PIM and the fees thereunder were unaffected by Pioneer's possible receipt of any such intangible benefits. Conclusion After consideration of the factors described above as well as other factors, the Trustees, including all of the Independent Trustees, concluded that the investment advisory agreement between PIM and the Fund, including the fees payable thereunder, was fair and reasonable and voted to approve the proposed renewal of the investment advisory agreement for the Fund. Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 43 Trustees, Officers and Service Providers Trustees Advisory Trustee Thomas J. Perna, Chairman Lorraine H. Monchak* David R. Bock Benjamin M. Friedman Officers Margaret B.W. Graham Lisa M. Jones, President and Chief Marguerite A. Piret Executive Officer Fred J. Ricciardi Mark E. Bradley, Treasurer and Kenneth J. Taubes Chief Financial Officer Christopher J. Kelley, Secretary and Chief Legal Officer Investment Adviser and Administrator Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Pioneer Investment Management Shareholder Services, Inc. Proxy Voting Policies and Procedures of the Fund are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to shareowners at us.pioneerinvestments.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. * Ms. Monchak is a non-voting Advisory Trustee. 44 Pioneer High Income Municipal Fund | Semiannual Report | 2/28/15 How to Contact Pioneer We are pleased to offer a variety of convenient ways for you to contact us for assistance or information. Call us for: -------------------------------------------------------------------------------- Account Information, including existing accounts, new accounts, prospectuses, applications and service forms 1-800-225-6292 FactFone(SM) for automated fund yields, prices, account information and transactions 1-800-225-4321 Retirement plans information 1-800-622-0176 Write to us: -------------------------------------------------------------------------------- PIMSS, Inc. P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address ask.pioneer@pioneerinvestments.com (for general questions about Pioneer only) Visit our web site: us.pioneerinvestments.com This report must be preceded or accompanied by a prospectus. The Fund files a complete schedule of investments with the Securities and Exchange Commission for the first and third quarters for each fiscal year on Form N-Q. Shareholders may view the filed Form N-Q by visiting the Commission's web site at http://www.sec.gov. The filed form may also be viewed and copied at the Commission's Public Reference Room in Washington, DC. Information regarding the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 us.pioneerinvestments.com Securities offered through Pioneer Funds Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2015 Pioneer Investments 20563-08-0415 Pioneer Long/Short Global Bond Fund -------------------------------------------------------------------------------- Semiannual Report | February 28, 2015 -------------------------------------------------------------------------------- Ticker Symbols: Class A LSGAX Class C LSGCX Class Y LSGYX Note to shareholders: Effective June 1, 2015, the Fund will be renamed Pioneer Long/Short Bond Fund. [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents President's Letter 2 Portfolio Management Discussion 4 Portfolio Summary 10 Prices and Distributions 11 Performance Update 12 Comparing Ongoing Fund Expenses 15 Schedule of Investments 17 Financial Statements 30 Notes to Financial Statements 37 Approval of Investment Advisory Agreement 52 Trustees, Officers and Service Providers 57 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 1 President's Letter Dear Shareowner, Today's market environment presents numerous opportunities as well as challenges for investors. A disparate global economic landscape has formed, with the U.S. facing prospects for continued growth, while questions abound regarding the outlook for other regions. Employment, household income, and corporate profits have been rising in the U.S. and inflation pressures remain low. However, many countries across Europe as well as Japan face muted growth. In addition, a variety of factors have clouded the outlook for countries such as Russia and Brazil and China's investment-driven economy continues to slow. Monetary policies of major central banks are diverging, reflecting different economic conditions. With the U.S. economy no longer in need of extraordinary stimulus, the Federal Reserve Board may be closer to raising short-term interest rates. Conversely, the European Central Bank and the Bank of Japan are likely to be adding, not removing, stimulus. While we anticipate continued growth for the U.S., the outlook is far from certain, nor is the outlook for other regions necessarily dire. It remains to be seen how weakness outside the U.S. will affect global growth and whether easing monetary policies in other regions will spur an economic recovery. While these economic conditions may lead to increasing volatility in 2015, we believe the opportunity for investors to earn attractive returns will persist. However, in an environment where interest rates remain low and equity valuations have been buoyed by an extended bull market, we believe it is imperative investors adhere to a disciplined investment approach that is consistent with one's goals and objectives, being mindful of the tradeoff between risk and return. Since 1928 Pioneer's investment professionals have been focused on identifying and capitalizing on investment opportunities that present themselves in a variety of ever changing market conditions, including those we face today. We seek returns consistent with our strategies' stated style and 2 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 objectives and consistent with our shareholders' expectations, regardless of market conditions. We believe our shareowners benefit from the experience and tenure of our investment teams, the insights generated from extensive research resources and a commitment to prudent risk management that seeks to mitigate downside and preserve returns over time. We encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short- and long-term goals, and to implement such a plan in a disciplined manner, as we do when deploying strategies on behalf of our shareowners. We greatly appreciate your trust in us in the past and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones President and CEO Pioneer Investment Management USA, Inc. Any information in this shareowner report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. These statements should not be relied upon for any other purposes. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 3 Portfolio Management Discussion | 2/28/15 In the following interview, portfolio managers Thomas Swaney and Benjamin Gord discuss the factors that influenced Pioneer Long/Short Global Bond Fund's performance during the six-month period ended February 28, 2015, as well as their investment approach in managing the Fund. Mr. Swaney, Head of Alternative Fixed Income, U.S., a senior vice president, and a portfolio manager at Pioneer (lead portfolio manager of the Fund since 2013), and Mr. Gord, a vice president and a portfolio manager at Pioneer, are responsible for the day-to-day management of the Fund. Q How did the Fund perform during the six-month period ended February 28, 2015? A Pioneer Long/Short Global Bond Fund's Class A shares returned 2.06% at net asset value during the six-month period ended February 28, 2015, while the Fund's benchmark, the Bank of America Merrill Lynch (BofA ML) 3-Month U.S. Treasury-Bill Index, returned 0.01%. During the same period, the average return of the 230 mutual funds in Lipper's Alternative Credit Focus Funds category was -0.65%, and the average return of the 427 mutual funds in Morningstar's Non-Traditional Bond Funds category was -0.25%. Q Can you provide an overview of the Fund's investment approach? A The big picture is that we seek to have the Fund produce an average annual return that is greater than the return on 3-month Treasury bills, on an annualized basis, with volatility that is about the same as that of the broad fixed-income market. In pursuing this goal, we seek to have the Fund provide positive returns over most trailing 12-month periods and to minimize the extent of any negative returns, regardless of market conditions. Obviously, if we are going to be successful in achieving our objective, the Fund's returns cannot be overly dependent on the direction of one or more financial asset categories. In seeking positive returns regardless of market conditions, we utilize two distinct strategies. One strategy is "directional," in that we need to be correct about whether a particular asset price is poised to go up or down. However, we seek to have the Fund's performance benefit from both positive and negative returns. This means that at times we invest the portfolio in some asset categories within the broad bond market by taking long positions, while speculating against other asset classes by taking short positions. The other part of the portfolio utilizes uncorrelated, relative-value-based trading strategies, in which we do not have to take a stance on whether an individual market is going to rise or fall overall. Instead, we need to identify either a segment or security within a market that we believe will outperform 4 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 versus another market segment or security. We execute these portfolio investment strategies across several different global financial markets and many different asset classes. We will seek to "pair" positions, meaning that the Fund will have a long position in one segment/security of a particular market, and a short position in another segment/security. We believe this strategy can allow the Fund to benefit from favorable relative performance, regardless of the overall direction of that market. Most importantly, we closely track the risks we have assumed in both portions of the portfolio. We operate within an overall "risk budget" for the portfolio based on our objective of largely avoiding negative 12-month returns. Q Can you review the principal portfolio investment strategies you implemented during the six-month period ended February 28, 2015? How did those strategies help or hinder the Fund's performance? A Let's look first at the relative value side of the portfolio, which seeks to realize gains regardless of market direction. One relative value strategy we used during the period was to seek to take advantage of the slope of the yield curve for individual corporate bond issuers. For instance, the long- term debt of companies with weaker balance sheets may react more strongly to changes in business conditions than the short-term debt. Within this strategy, a curve trade in retailer Radio Shack added to the Fund's performance, while a curve trade in gaming company Caesars Entertainment detracted. On the whole, the Fund's long/short curve trading strategies added notably to returns over the six-month period. Another strategy that added value to the Fund's returns during the period was our utilization of credit index tranches. Such investments allow us to efficiently accentuate the portfolio's exposure to index constituents that tend to be more susceptible to overall changes in business conditions, while shorting the overall market index. We also implemented pair trades, under which we took opposing long and short positions in two issuers within the same industry. We do this when we believe that the differing company fundamentals are not reflected in their relative valuations. Our pair trades were, on balance, modestly successful for the Fund during the six-month period. Another strategy we utilized during the period entailed arbitraging a company's capital structure in anticipation of a divergence in performance. (Arbitrage is defined as a trade that profits by exploiting price differences of identical or similar financial instruments, on different markets or in different forms, due to temporary inefficiencies in the markets; this provides a mechanism to ensure prices do not deviate substantially from fair value for long periods of time. Part of the transaction could fail, and a sudden price movement may make it impossible to close the trade at a Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 5 profit.) An example of arbitraging would be our buying the issuer's junior subordinated bonds and selling short the issuer's senior secured bonds. Our various capital arbitrage positions had mixed results for the Fund's performance during the period. Our management of the Fund's interest-rate exposures detracted modestly from performance during the period as we kept the portfolio in a short-duration stance in the United States at various points due to declines in longer-term rates. (Duration is a measure of the sensitivity of the price - the value of principal - of a fixed-income investment to a change in interest rates, expressed as a number of years.) The short-duration position was based on our view that U.S. interest rates would rise as the Federal Reserve (the Fed) solidified expectations for when it would begin to hike the benchmark Federal funds rate. Unfortunately, the market remained sanguine with respect to the interest-rate outlook and the yield curve flattened. With regard to currency strategies during the period, we positioned the Fund to benefit from the relative strengthening of the U.S. dollar. Specifically, we went long the U.S. dollar while shorting the euro, the Japanese yen, the Czech koruna, the Brazilian real and the Australian dollar. The currency strategies added to the Fund's return during the period. On the directional side of the portfolio, we will take long or short positions in fixed-income markets and securities, based on our performance outlook, while hedging out interest-rate risk. During the period, the Fund's directional trading was challenged as market volatility spiked in late 2014. We were cautious with respect to investments in credit-oriented markets, in particular high-yield corporates, given the tightening in spreads that has occurred (credit spreads are commonly defined as the differences in yield between Treasuries and other types of fixed-income securities with similar maturities). We did successfully take portfolio positions in corporate bonds, including high-yield issues, on weakness at various points during the six-month period. The Fund's performance benefited from long positions taken in both commercial mortgage-backed (CMBS) and residential mortgage-backed securities (RMBS), as the credit profiles of existing borrowers improved along with the economic backdrop. Finally, we took various thematic long/short positions, including those based on U.S. dollar strength, weakness in infrastructure metal commodities, a rebound in crude oil prices and a rise in short-term interest rates. Under this approach, we will take opposite positions in two companies that we believe could be affected differently by their exposures to a particular theme (for instance, dollar strength). Our thematic long/short 6 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 trading strategies, on balance, detracted from the Fund's returns during the period. In this vein, a long position in Hertz did not work opposite a short position in United Rentals. Q Could you discuss the use of derivative positions in the portfolio during the six-month period ended February 28, 2015, and their effect on the Fund's performance? A Virtually all of the portfolio's strategies are implemented via derivatives, and so the Fund's performance will always be affected by derivatives trading. For instance, when we want to short U.S. Treasuries, we will do so mainly by selling Treasury futures or sometimes by buying "put" options. Similarly, in the currency sleeve of the Fund, we use forwards and options to gain the desired exposures. With respect to credit markets, where there are no liquid futures contracts, we may use credit default swaps to manage the portfolio's exposures. In other situations, we utilize instruments such as interest-rate or inflation swaps to implement our strategies. Q What is your assessment of the current macroeconomic climate and the opportunities it may present? A We currently take a neutral position with respect to U.S. interest rates. While we believe the Fed will be justified in raising rates given the strength of the U.S. economy, weaker conditions overseas and investment flows into the United States could keep expectations tempered with respect to longer-term Treasury yields. In general, asset valuations appear to be ahead of economic growth trends, supported by zero-interest-rate policies from central banks around the world. In this vein, credit spreads are tight by historical standards. At the same time, corporate balance sheets are in good shape. Given this backdrop, we see relatively few directional opportunities among fixed-income markets. The CMBS and more credit-sensitive areas of the MBS sector appear to be more attractively valued than corporate bonds. The Fed's extraordinarily supportive policies have helped to underpin conditions in recent years. While the beginning of Fed policy tightening is anticipated to a large degree by the market, volatility and performance dispersion could still increase as the speculation about increased rates moves out of the realm of benign prospect and becomes a reality. Slowing economic growth in China and the impact of oil prices on different countries and sectors will also be closely monitored by investors. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 7 On balance, we expect an environment of heightened volatility across fixed- income markets that could well provide opportunities for the Fund's relative value strategies. We plan to focus on identifying investment opportunities that emerge as market reactions overshoot developments on various macroeconomic fronts. Important note to shareholders: The Board of Trustees of the Fund has approved the elimination of the Fund's current policy normally to invest at least 40% of its net assets in securities of issuers located outside of the United States. In connection with the elimination of this policy, the Fund will be renamed Pioneer Long/Short Bond Fund. The changes are effective as of June 1, 2015. Please refer to the Schedule of Investments on pages 17-28 for a full listing of Fund securities. All investments are subject to risk, including the possible loss of principal. The portfolio may invest in derivative securities, such as options, futures, inverse floating-rate obligations, and swaps, among others, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on the performance of the portfolio. The Fund may take short positions, which involves leverage of its assets and presents additional risks. The Fund may invest in credit default swaps, which may in some cases be illiquid, and they increase credit risk since the Fund has exposure to both the issuer of the referenced obligation and the counterparty to the credit default swap. The Fund employs leverage, which increases the volatility of investment returns and subjects the Fund to magnified losses. Investments in fixed-income securities involve interest rate, credit, inflation, and reinvestment risks. When interest rates rise, the prices of fixed-income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed-income securities in the Fund will generally rise. Investments in the Fund are subject to possible loss due to the financial failure of issuers of underlying securities and their inability to meet their debt obligations. Investments in high-yield or lower-rated securities are subject to greater-than- average price volatility, illiquidity and possibility of default. 8 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Prepayment risk is the chance that an issuer may exercise its right to prepay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income and lose the opportunity for additional price appreciation. The securities issued by U.S. Government sponsored entities (e.g., FNMA, Freddie Mac) are neither guaranteed nor issued by the U.S. Government. The portfolio may invest in mortgage-backed securities, which during times of fluctuating interest rates may increase or decrease more than other fixed-income securities. Mortgage-backed securities are also subject to pre-payments. Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates, economic, and political conditions. The Fund may invest in event-linked bonds and other insurance-linked securities. The return of principal and the payment of interest on insurance-linked securities are contingent on the non-occurrence of a pre-defined "trigger" event, such as a hurricane or an earthquake of a specific magnitude. The Fund may invest in floating-rate loans; the value of collateral, if any, securing a floating-rate loan can decline or may be insufficient to meet the issuer's obligations or may be difficult to liquidate. The Fund is subject to currency risk, meaning that the Fund could experience losses based on changes in the exchange rate between non-U.S. currencies and the U.S. dollar. The Fund is non-diversified, which means that it can invest a large percentage of its assets in the securities of any one or more issuers. This increases the Fund's potential risk exposure. These risks may increase share price volatility. There is no assurance that these and other strategies used by the Fund will be successful. Please see the prospectus for a more complete discussion of the Fund's risks. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Pioneer Investments for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is no guarantee of future results. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 9 Portfolio Summary | 2/28/15 Portfolio Diversification -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] Foreign Government Bonds 44.3% Collateralized Mortgage Obligations 24.0% Temporary Cash Investments 12.3% U.S. Government Securities 4.4% Mutual Fund 3.8% Senior Secured Loans 3.3% International Corporate Bonds 2.8% Convertible Preferred Stocks 1.3% Asset Backed Securities 1.1% Convertible Corporate Bonds 0.9% U.S. Corporate Bonds 0.9% U.S. Preferred Stocks 0.9% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)* 1. United Kingdom Treasury Bill, 3/2/15 10.60% ---------------------------------------------------------------------------------------- 2. United Kingdom Treasury Bill, 3/23/15 10.60 ---------------------------------------------------------------------------------------- 3. Canadian Treasury Bill, 3/26/15 5.69 ---------------------------------------------------------------------------------------- 4. Canadian Treasury Bill, 4/23/15 4.92 ---------------------------------------------------------------------------------------- 5. DoubleLine Opportunistic Credit Fund 4.39 ---------------------------------------------------------------------------------------- 6. Italy Buoni Ordinari del Tesoro BOT, 3/13/15 4.30 ---------------------------------------------------------------------------------------- 7. Canadian Treasury Bill, 4/9/15 4.03 ---------------------------------------------------------------------------------------- 8. JP Morgan Mortgage Trust 2014-1 REMICS, Floating Rate Note, 1/25/44 (144A) 3.84 ---------------------------------------------------------------------------------------- 9. Canadian Treasury Bill, 3/12/15 3.65 ---------------------------------------------------------------------------------------- 10. Sequoia Mortgage Trust 2013-7, Floating Rate Note, 6/25/43 3.57 ---------------------------------------------------------------------------------------- * This list excludes temporary cash investments and derivative instruments. The portfolio is actively managed, and current holdings may be different. The holdings listed should not be considered recommendations to buy or sell any security listed. 10 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Prices and Distributions | 2/28/15 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 2/28/15 8/31/14 -------------------------------------------------------------------------------- A $ 10.04 $ 10.05 -------------------------------------------------------------------------------- C $ 10.00 $ 10.00 -------------------------------------------------------------------------------- Y $ 10.06 $ 10.07 -------------------------------------------------------------------------------- Distributions per Share: 9/1/14-2/28/15 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.2127 $ -- $ -- -------------------------------------------------------------------------------- C $0.1634 $ -- $ -- -------------------------------------------------------------------------------- Y $0.2303 $ -- $ -- -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Bank of America Merrill Lynch (BofA ML) 3-Month US Treasury Bill Index is an unmanaged market index of U.S. Treasury securities maturing in 90 days, that assumes reinvestment of all income. Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. It is not possible to invest directly in an index. The index defined here pertains to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts appearing on pages 12-14. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 11 Performance Update | 2/28/15 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer Long/Short Global Bond Fund at public offering price during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Semiannual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Net Public BofA ML Asset Offering 3-Month Value Price U.S. Treasury Period (NAV) (POP) Bill Index -------------------------------------------------------------------------------- Life-of-Class (12/30/13) 2.20% -1.75% 0.03% 1 Year 2.57 -2.03 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.83% 1.64% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Long/Short BofA ML 3-month US Global Bond Fund Treasury Bill Index 12/31/2013 $ 9,550 $ 10,000 2/28/2014 $ 9,551 $ 10,001 2/28/2015 $ 9,797 $ 10,004 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. POP returns reflect deduction of maximum 4.50% sales charge. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class A shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 12 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Performance Update | 2/28/15 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C shares of Pioneer Long/Short Global Bond Fund during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Semiannual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- BofA ML 3-Month If If U.S. Treasury Period Held Redeemed Bill Index -------------------------------------------------------------------------------- Life-of-Class (12/30/13) 1.43% 1.43% 0.03% 1 Year 1.77 1.77 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 3.57% 2.39% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Long/Short BofA ML 3-month US Global Bond Fund Treasury Bill Index 12/31/2013 $ 10,000 $ 10,000 2/28/2014 $ 9,990 $ 10,001 2/28/2015 $ 10,167 $ 10,004 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class C shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 13 Performance Update | 2/28/15 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer Long/Short Global Bond Fund during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Semiannual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Net BofA ML Asset 3-Month Value U.S. Treasury Period (NAV) Bill Index -------------------------------------------------------------------------------- Life-of-Class (12/30/13) 2.53% 0.03% 1 Year 2.95 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.57% 1.39% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer Long/Short BofA ML 3-month US Global Bond Fund Treasury Bill Index 12/31/2013 $ 5,000,000 $ 5,000,000 2/28/2014 $ 5,000,000 $ 5,000,363 2/28/2015 $ 5,147,724 $ 5,001,901 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class Y shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 14 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Comparing Ongoing Fund Expenses As a shareowner in the Fund, you incur two types of costs: (1) ongoing costs, including management fees, distribution and/or service (12b-1) fees, and other Fund expenses; and (2) transaction costs, including sales charges (loads) on purchase payments. This example is intended to help you understand your ongoing expenses (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 at the beginning of the Fund's latest six-month period and held throughout the six months. Using the Tables -------------------------------------------------------------------------------- Actual Expenses The first table below provides information about actual account values and actual expenses. You may use the information in this table, together with the amount you invested, to estimate the expenses that you paid over the period as follows: (1) Divide your account value by $1,000 Example: an $8,600 account value (divided by) $1,000 = 8.6 (2) Multiply the result in (1) above by the corresponding share class's number in the third row under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. Expenses Paid on a $1,000 Investment in Pioneer Long/Short Global Bond Fund Based on actual returns from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account Value on 9/1/14 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,020.60 $1,016.70 $1,022.40 on 2/28/15 -------------------------------------------------------------------------------- Expenses Paid During Period* $ 8.07 $ 11.80 $ 6.82 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio plus the expense ratio of the underlying funds. These combined totals were 1.61%, 2.36%, and 1.36% for Class A, Class C and Class Y shares, respectively. These combined ratios were multiplied by the average account value over the period, and then multiplied by 181/365 (to reflect the one-half year period). Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 15 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer Long/Short Global Bond Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account Value on 9/1/14 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,016.81 $1,013.09 $1,018.05 on 2/28/15 -------------------------------------------------------------------------------- Expenses Paid During Period* $ 8.05 $ 11.78 $ 6.80 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio plus the expense ratio of the underlying funds. These combined totals were 1.61%, 2.36%, and 1.36% for Class A, Class C and Class Y shares, respectively. These combined ratios were multiplied by the average account value over the period, and then multiplied by 181/365 (to reflect the one-half year period). 16 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Schedule of Investments | 2/28/15 (unaudited) ---------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ---------------------------------------------------------------------------------------------------------- CONVERTIBLE CORPORATE BONDS -- 1.1% CAPITAL GOODS -- 1.1% Construction & Farm Machinery & Heavy Trucks -- 1.1% 185,000 Trinity Industries, Inc., 3.875%, 6/1/36 $ 275,766 --------------- Total Capital Goods $ 275,766 ---------------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE CORPORATE BONDS (Cost $276,280) $ 275,766 ---------------------------------------------------------------------------------------------------------- PREFERRED STOCKS -- 1.0% BANKS -- 1.0% Diversified Banks -- 1.0% 320,000 1.20 JPMorgan Chase Capital XXI, Floating Rate Note, 1/15/87 $ 264,800 --------------- Total Banks $ 264,800 ---------------------------------------------------------------------------------------------------------- TOTAL PREFERRED STOCKS (Cost $260,276) $ 264,800 ---------------------------------------------------------------------------------------------------------- CONVERTIBLE PREFERRED STOCKS -- 0.9% BANKS -- 0.9% Diversified Banks -- 0.9% 200 Bank of America Corp., 7.25% (Perpetual) $ 234,000 --------------- Total Banks $ 234,000 ---------------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE PREFERRED STOCKS (Cost $229,386) $ 234,000 ---------------------------------------------------------------------------------------------------------- ASSET BACKED SECURITIES -- 1.2% BANKS -- 0.9% Thrifts & Mortgage Finance -- 0.9% 49,352 CAM Mortgage Trust 2014-1, 5.5%, 12/15/53 (Step) (144A) $ 49,400 41,669 1.47 First Franklin Mortgage Loan Trust 2003-FFC, Floating Rate Note, 11/25/32 39,701 42,911 Icon Brand Holdings LLC, 4.229%, 1/26/43 (144A) 42,785 32,574 3.17 Irwin Whole Loan Home Equity Trust 2003-C, Floating Rate Note, 6/25/28 32,564 58,207 5.47 New Century Home Equity Loan Trust, Floating Rate Note, 8/25/34 60,130 --------------- $ 224,580 --------------- Total Banks $ 224,580 ---------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.3% Other Diversified Financial Services -- 0.3% 90,000 TAL Advantage V LLC, 4.1%, 2/22/39 $ 89,370 --------------- Total Diversified Financials $ 89,370 ---------------------------------------------------------------------------------------------------------- TOTAL ASSET BACKED SECURITIES (Cost $314,604) $ 313,950 ---------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 17 Schedule of Investments | 2/28/15 (unaudited) (continued) ---------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ---------------------------------------------------------------------------------------------------------- COLLATERALIZED MORTGAGE OBLIGATIONS -- 25.9% BANKS -- 25.9% Thrifts & Mortgage Finance -- 25.9% 300,000 1.13 Alternative Loan Trust 2005-J4, Floating Rate Note, 7/25/35 $ 269,070 185,000 2.70 BAMLL Commercial Mortgage Securities Trust 2014-INLD, Floating Rate Note, 12/17/29 (144A) 167,554 47,858 1.17 Bayview Commercial Asset Trust 2004-3, Floating Rate Note, 1/25/35 (144A) 44,062 100,000 Bear Stearns Commercial Mortgage Securities Trust 2006-PWR14, 5.273%, 12/11/38 101,737 115,000 2.76 Carefree Portfolio Trust 2014-CARE, Floating Rate Note, 11/15/29 (144A) 106,210 3,777 Citicorp Mortgage Securities REMIC Pass-Through Certificates Trust Series 2005-3, 5.5%, 4/25/35 3,778 175,000 5.57 COBALT Commercial Mortgage Trust 2007-C2, Floating Rate Note, 4/15/47 (144A) 178,474 175,000 COMM 2006-C8 Mortgage Trust, 5.377%, 12/10/46 177,479 175,000 5.23 Credit Suisse First Boston Mortgage Securities Corp., Floating Rate Note, 12/17/40 176,124 175,000 3.27 CSMC Trust 2014-SURF, Floating Rate Note, 2/15/29 (144A) 174,778 110,000 GAHR Commercial Mortgage Trust 2015-NRF, 3.38216%, 12/15/19 (144A) 103,139 200,000 JP Morgan Chase Commercial Mortgage Securities Trust 2006-CIBC16, 5.623%, 5/12/45 204,270 100,000 3.51 JP Morgan Chase Commercial Mortgage Securities Trust 2013-FL3, Floating Rate Note, 4/17/28 (144A) 100,001 929,518 3.50 JP Morgan Mortgage Trust 2014-1 REMICS, Floating Rate Note, 1/25/44 (144A) 954,994 813,323 3.97 JP Morgan Mortgage Trust 2014-1 REMICS, Floating Rate Note, 1/25/44 (144A) 853,291 125,000 5.27 LB-UBS Commercial Mortgage Trust 2005-C2, Floating Rate Note, 4/15/40 125,242 150,000 5.28 LB-UBS Commercial Mortgage Trust 2006-C1, Floating Rate Note, 2/15/41 152,182 55,000 5.48 ML-CFC Commercial Mortgage Trust 2006-3, Floating Rate Note, 7/12/46 56,128 6,239 0.95 Nomura Asset Acceptance Corp Alternative Loan Trust Series 2004-AR2, Floating Rate Note, 10/25/34 6,215 695,133 3.50 Sequoia Mortgage Trust 2012-3, Floating Rate Note, 7/25/42 709,823 720,252 3.00 Sequoia Mortgage Trust 2013-6, Floating Rate Note, 5/26/43 710,292 901,084 3.00 Sequoia Mortgage Trust 2013-7, Floating Rate Note, 6/25/43 888,624 The accompanying notes are an integral part of these financial statements. 18 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 ---------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ---------------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 250,000 5.36 Wachovia Bank Commercial Mortgage Trust Series 2005-C22, Floating Rate Note, 12/15/44 $ 253,348 100,000 5.95 Wachovia Bank Commercial Mortgage Trust Series 2007-C34, Floating Rate Note, 5/15/46 103,823 200,000 3.67 Wells Fargo Commercial Mortgage Trust 2014-TISH, Floating Rate Note, 1/15/27 (144A) 197,268 --------------- $ 6,817,906 --------------- Total Banks $ 6,817,906 ---------------------------------------------------------------------------------------------------------- TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $6,637,318) $ 6,817,906 ---------------------------------------------------------------------------------------------------------- CORPORATE BONDS -- 4.1% DIVERSIFIED FINANCIALS -- 0.2% Other Diversified Financial Services -- 0.2% INR 3,700,000 European Bank for Reconstruction & Development, 6.0%, 3/3/16 $ 59,784 --------------- Total Diversified Financials $ 59,784 ---------------------------------------------------------------------------------------------------------- INSURANCE -- 3.9% Reinsurance -- 3.9% 250,000 6.87 Caelus Re, Ltd., Floating Rate Note, 4/7/17 (Cat Bond) (144A) $ 260,900 250,000 4.15 Kilimanjaro Re, Ltd., Floating Rate Note, 4/30/18 (Cat Bond) (144A) 251,750 250,000 8.51 Mythen Re, Ltd., Floating Rate Note, 5/7/15 (Cat Bond) (144A) 252,575 250,000 4.52 Residential Reinsurance 2012, Ltd., Floating Rate Note, 12/6/16 (Cat Bond) (144A) 256,200 --------------- $ 1,021,425 --------------- Total Insurance $ 1,021,425 ---------------------------------------------------------------------------------------------------------- TOTAL CORPORATE BONDS (Cost $1,076,470) $ 1,081,209 ---------------------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- 4.8% 140,000 U.S. Treasury Bills, 3/5/15 (c) $ 140,000 835,000 U.S. Treasury Bills, 4/9/15 (c) 834,985 50,000 0.07 U.S. Treasury Note, Floating Rate Note, 1/31/16 49,999 125,000 0.09 U.S. Treasury Note, Floating Rate Note, 4/30/16 125,013 125,000 0.09 U.S. Treasury Note, Floating Rate Note, 7/31/16 124,993 ---------------------------------------------------------------------------------------------------------- TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS (Cost $1,275,045) $ 1,274,990 ---------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 19 Schedule of Investments | 2/28/15 (unaudited) (continued) ---------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ---------------------------------------------------------------------------------------------------------- FOREIGN GOVERNMENT BONDS -- 47.9% CAD 1,136,000 Canadian Treasury Bill, 3/12/15 (c) $ 907,611 CAD 1,773,000 Canadian Treasury Bill, 3/26/15 (c) 1,416,232 CAD 1,535,000 Canadian Treasury Bill, 4/23/15 (c) 1,225,571 CAD 1,255,000 Canadian Treasury Bill, 4/9/15 (c) 1,002,275 EURO 957,000 Italy Buoni Ordinari del Tesoro BOT, 3/13/15 (c) 1,070,836 EURO 545,000 Spain Letras del Tesoro, 4/10/15 (c) 609,808 EURO 665,000 Spain Letras del Tesoro, 5/15/15 (c) 744,013 GBP 1,710,000 United Kingdom Treasury Bill, 3/2/15 (c) 2,639,385 GBP 1,710,000 United Kingdom Treasury Bill, 3/23/15 (c) 2,638,759 GBP 225,000 United Kingdom Treasury Bill, 3/9/15 (c) 347,260 ---------------------------------------------------------------------------------------------------------- TOTAL FOREIGN GOVERNMENT BONDS (Cost $12,669,773) $ 12,601,750 ---------------------------------------------------------------------------------------------------------- SENIOR FLOATING RATE LOAN INTERESTS -- 3.6%** ENERGY -- 0.8% Oil & Gas Equipment & Services -- 0.5% 98,998 3.88 Fieldwood Energy LLC, Closing Date Loan, 9/25/18 $ 94,976 49,500 5.75 FR Dixie Acquisition Corp., Term Loan, 1/23/21 41,332 --------------- $ 136,308 ---------------------------------------------------------------------------------------------------------- Integrated Oil & Gas -- 0.3% 99,000 4.00 Seadrill Operating LP, Initial Term Loan, 2/14/21 $ 80,349 --------------- Total Energy $ 216,657 ---------------------------------------------------------------------------------------------------------- MATERIALS -- 0.7% Commodity Chemicals -- 0.1% 29,700 5.00 Nexeo Solutions LLC, Term Loan B3, 9/9/17 $ 29,069 ---------------------------------------------------------------------------------------------------------- Diversified Chemicals -- 0.2% 49,485 5.00 Univar, Term B Loan, 2/14/17 $ 49,238 ---------------------------------------------------------------------------------------------------------- Paper Packaging -- 0.3% 25,000 8.00 Caraustar Industries, Inc., Incremental Term Loan, 6.75%, 5/1/19 $ 24,500 49,500 5.25 Coveris Holdings SA, USD Term Loan, 4/14/19 49,778 --------------- $ 74,278 ---------------------------------------------------------------------------------------------------------- Steel -- 0.1% 34,825 4.50 Atkore International, Inc., Term Loan (First Lien), 3/27/21 $ 33,780 --------------- Total Materials $ 186,365 ---------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 20 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 ---------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ---------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.3% Aerospace & Defense -- 0.3% 33,770 6.25 DynCorp International, Inc., Term Loan, 7/7/16 $ 33,616 24,937 6.50 TASC, Inc., First Lien Term Loan, 2/28/17 25,228 24,375 3.25 Wesco Aircraft Hardare Corp., Tranche B Term Loan (First Lien), 2/24/21 24,030 --------------- $ 82,874 --------------- Total Capital Goods $ 82,874 ---------------------------------------------------------------------------------------------------------- TRANSPORTATION -- 0.4% Trucking -- 0.4% 49,750 5.50 Aegis Toxicology Corp., Tranche B Term Loan (First Lien), 2/20/21 $ 49,999 49,500 8.25 YRC Worldwide, Inc., Initial Term Loan, 2/12/19 49,252 --------------- $ 99,251 --------------- Total Transportation $ 99,251 ---------------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 0.1% Auto Parts & Equipment -- 0.1% 29,850 4.00 Cooper Standard Intermediate Holdco 2 LLC, Term Loan, 3/28/21 $ 29,742 --------------- Total Automobiles & Components $ 29,742 ---------------------------------------------------------------------------------------------------------- MEDIA -- 0.2% Broadcasting -- 0.1% 23,485 3.00 CBS Outdoor Americas Capital llc, Tranche B Term Loan (First Lien), 1/15/21 $ 23,371 ---------------------------------------------------------------------------------------------------------- Publishing -- 0.1% 25,000 7.00 Cengage Learning Acquisitions Inc., Term Loan, 3/6/20 $ 25,025 --------------- Total Media $ 48,396 ---------------------------------------------------------------------------------------------------------- HOUSEHOLD & PERSONAL PRODUCTS -- 0.4% Personal Products -- 0.4% 75,000 7.75 Atrium Innovations, Inc., Tranche B Term Loan (Second Lien), 7/29/21 $ 69,567 36,630 4.00 Party City Holdings, Inc., 2014 Replacement Term Loan, 7/27/19 36,447 --------------- $ 106,014 --------------- Total Household & Personal Products $ 106,014 ---------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.4% Other Diversified Financial Services -- 0.2% 34,738 4.50 Nord Anglia Education, Initial Term Loan, 3/31/21 $ 34,651 24,813 5.00 SBP Holdings, Ltd., Term Loan (First Lien), 3/24/21 21,773 --------------- $ 56,424 ---------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 21 Schedule of Investments | 2/28/15 (unaudited) (continued) ---------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value ---------------------------------------------------------------------------------------------------------- Consumer Finance -- 0.2% 34,738 4.00 Trans Union LLC, 2014 Replacement Term Loan, 4/9/21 $ 34,672 --------------- Total Diversified Financials $ 91,096 ---------------------------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.1% Semiconductor Equipment -- 0.1% 35,552 3.50 Emtegris, Inc., Term Loan B, 3/25/21 $ 35,330 --------------- Total Semiconductors & Semiconductor Equipment $ 35,330 ---------------------------------------------------------------------------------------------------------- UTILITIES -- 0.2% Electric Utilities -- 0.2% 45,125 4.75 Atlantic Power LP, Term Loan, 2/20/21 $ 45,350 --------------- Total Utilities $ 45,350 ---------------------------------------------------------------------------------------------------------- TOTAL SENIOR FLOATING RATE LOAN INTERESTS (Cost $979,345) $ 941,075 ---------------------------------------------------------------------------------------------------------- ---------------------------------------------------------------------------------------------------------- Shares ---------------------------------------------------------------------------------------------------------- MUTUAL FUND -- 4.2% 42,432 DoubleLine Opportunistic Credit Fund $ 1,093,897 ---------------------------------------------------------------------------------------------------------- TOTAL MUTUAL FUND (Cost $1,075,146) $ 1,093,897 ---------------------------------------------------------------------------------------------------------- TEMPORARY CASH INVESTMENTS -- 13.3% REPURCHASE AGREEMENTS -- 13.3% 3,505,000 RBC Capital Markets LLC, 0.08%, dated 2/28/15, repurchase price of $3,505,000, plus accrued interest on 3/2/15, collateralized by the following: $1,191,264 Federal National Mortgage Association, 3-4%, 7/1/28- 10/1/42 $858,009 Federal National Mortgage Association (ARM), 2.28%, 7/1/39 $1,525,828 Federal Home Loan Mortgage Corp., 2.699%, 11/1/44 $ 3,505,000 ---------------------------------------------------------------------------------------------------------- TOTAL TEMPORARY CASH INVESTMENTS (Cost $3,505,000) $ 3,505,000 ---------------------------------------------------------------------------------------------------------- TOTAL INVESTMENT IN SECURITIES -- 108.0% (Cost $28,298,643) (a) $ 28,404,343 ---------------------------------------------------------------------------------------------------------- OTHER ASSETS & LIABILITIES -- (8.0)% $ (2,106,952) ---------------------------------------------------------------------------------------------------------- TOTAL NET ASSETS -- 100.0% $ 26,297,391 ========================================================================================================== The accompanying notes are an integral part of these financial statements. 22 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 (Cat Bond) Catastrophe bond is a high-yield debt instrument that is usually insurance linked and meant to raise money in case of a catastrophe. (Perpetual) Security with no stated maturity date. (Step) Bond issued with an initial coupon rate which converts to a higher rate at a later date. REMICS Real Estate Mortgage Investment Conduits. ** Senior floating rate loan interests in which the Fund invests generally pay interest at rates that are periodically redetermined by reference to a base lending rate plus a premium. These base lending rates are generally (i) the lending rate offered by one or more major European banks, such as LIBOR (London InterBank Offered Rate), (ii) the prime rate offered by one or more major United States banks, (iii) the certificate of deposit rate or (iv) other base lending rates used by commercial lenders. The rate shown is the coupon rate at period end. (144A) Security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold normally to qualified institutional buyers in a transaction exempt from registration. At February 28, 2015, the value of these securities amounted to $3,993,381 or 15.2% of total net assets. (a) At February 28, 2015, the net unrealized appreciation on investments based on cost for federal income tax purposes of $28,301,718 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $ 286,791 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (184,166) --------- Net unrealized appreciation $ 102,625 ========= (b) Debt obligation with a variable interest rate. Rate shown is rate at end of period. (c) Security issued with a zero coupon. Income is earned through accretion of discount. NOTE: Principal amounts are denominated in U.S. Dollars unless otherwise noted: CAD Canadian Dollar EURO Euro GBP British Pound Sterling INR Indian Rupee Purchases and sales of securities (excluding temporary cash investments) for the six months ended February 28, 2015 aggregated $8,502,204 and $10,773,612, respectively. The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 23 Schedule of Investments | 2/28/15 (unaudited) (continued) CREDIT DEFAULT SWAP AGREEMENTS -- BUY PROTECTION ------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Expiration Received Appreciation Principal ($) Counterparty Entity/Index Coupon Date (Paid) (Depreciation) ------------------------------------------------------------------------------------------------------- (749,700) Citibank NA Markit CDX North 5.00% 12/20/18 $(148,441) $ 14,498 America High Yield Index (250,000) Morgan Radioshack Corp. 5.00% 6/20/17 123,750 66,498 Stanley & Co. International plc (250,000) Citibank NA JPMorgan Chase 1.00% 3/20/20 (3,780) (1,110) & Co. (125,000) J.P. Morgan Bank of America 1.00% 3/20/20 (1,525) (794) Securities LLC Corp. ------------------------------------------------------------------------------------------------------- $ (29,996) $79,092 ======================================================================================================= CENTRALLY CLEARED CREDIT DEFAULT SWAP AGREEMENTS -- BUY PROTECTION ------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Expiration Received Appreciation Principal ($) Counterparty Entity/Index Coupon Date (Paid) (Depreciation) ------------------------------------------------------------------------------------------------------- EUR (1,375,000) Intercontinental Markit iTraxx Europe 5.00% 6/20/19 $(200,148) $(31,193) Exchange Crossover Index (5,010,000) Chicago Markit CDX North 1.00% 12/20/19 (85,995) (13,043) Mercantile America Investment Exchange Grade Index (1,515,750) Chicago Markit CDX North 5.00% 12/20/16 (90,339) (2,792) Mercantile America High Exchange Yield Index ------------------------------------------------------------------------------------------------------- $(376,482) $(47,028) ======================================================================================================= Principal amounts are denominated in U.S. Dollars unless otherwise noted: EUR Euro The accompanying notes are an integral part of these financial statements. 24 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 CREDIT DEFAULT SWAP AGREEMENTS -- SELL PROTECTION -------------------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Credit Expiration Received Appreciation Principal ($)(1) Counterparty Entity/Index Coupon Rating(2) Date (Paid) (Depreciation) -------------------------------------------------------------------------------------------------------------------- EUR 250,000 Barclays Bank Norske 5.00% CCC- 12/20/15 $ (52,243) $ 43,776 Plc Skogindustrier ASA 645,000 Citibank NA Markit CDX 5.00% BBB+ 12/20/17 (31,605) 6,942 North America Investment Grade Index 250,000 Citibank NA Parker Drilling Co. 5.00% B+ 3/20/20 (17,500) 2,439 250,000 Citibank NA Transocean Inc. 1.00% BBB- 3/20/20 (57,065) (35) EUR 375,000 Citibank NA Markit iTraxx 5.00% BB 6/20/15 (5,154) 10,736 Europe Index EUR 1,250,000 Citibank NA Markit iTraxx 1.00% BBB+ 6/20/19 (108,271) 68,609 Europe Index 250,000 Citibank NA MBIA, Inc. 5.00% A- 3/20/15 (625) 2,609 250,000 Citibank NA Travelport LLC 5.00% NR 3/20/15 -- 2,770 250,000 Citibank NA Sears Roebuck Acceptance Corp. 5.00% CCC+ 3/20/15 (16,250) 16,146 300,000 Goldman Sach Claire's Stores 5.00% CCC 12/20/15 (12,000) (25,905) International Inc. 300,000 Goldman Sach Toys R Us Inc. 5.00% CCC 12/20/15 (10,500) 4,750 International 525,000 Goldman Sach Sears Roebuck 5.00% CCC+ 12/20/15 (21,000) 10,282 International Acceptance Corp. 525,000 Goldman Sach iHeart Media, 5.00% CCC- 12/20/15 (14,437) 19,180 International Inc. 260,000 Goldman Sach Hertz Corp. 5.00% B 3/20/20 6,096 16,588 International EUR 250,000 Goldman Sach Altice Finco SA 5.00% B- 3/20/20 (5,258) 30,451 International EUR 250,000 JP Morgan Norske 5.00% CCC- 12/20/15 (50,506) 42,039 Chase Bank Skogindustrier ASA NA EUR 400,000 JP Morgan Abengoa SA 5.00% B 12/20/15 (31,981) 31,757 Chase Bank NA EUR 400,000 JP Morgan Abengoa SA 5.00% B 3/20/20 (117,166) 62,127 Chase Bank NA 500,000 JP Morgan Williams 1.00% BB+ 3/20/20 (25,041) 338 Chase Bank Companies Inc. NA EUR 250,000 JP Morgan Norske 5.00% CCC- 3/20/15 (20,417) 21,017 Chase Bank Skogindustrier ASA NA The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 25 Schedule of Investments | 2/28/15 (unaudited) (continued) CREDIT DEFAULT SWAP AGREEMENTS -- SELL PROTECTION (continued) ------------------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Credit Expiration Received Appreciation Principal ($)(1) Counterparty Entity/Index Coupon Rating(2) Date (Paid) (Depreciation) ------------------------------------------------------------------------------------------------------------------- 400,000 Morgan Markit CDX 5.00% BBB+ 12/20/17 $ (14,500) $ (795) Stanley & Co. North America International Investment plc Grade Index 525,000 Morgan JC Penny 5.00% CCC- 12/20/16 (15,750) 25,637 Stanley & Co. Corp., Inc. International plc 250,000 Morgan MBIA, Inc. 5.00% A- 12/20/15 (3,125) 12,853 Stanley & Co. International plc 250,000 Morgan Weatherford 1.00% BBB- 3/20/20 (32,565) 7,947 Stanley & Co. International International Ltd. plc 500,000 Morgan Diamond 1.00% A- 3/20/20 (63,792) 7,436 Stanley & Co. Offshore Drill International plc 250,000 Morgan Apache Corp. 1.00% A- 3/20/20 (14,039) 12,085 Stanley & Co. International plc 500,000 Morgan Nabors 1.00% BBB 3/20/20 (60,500) 473 Stanley & Co. Industries Inc. International plc 250,000 Morgan Canadian 1.00% BBB+ 3/20/20 (5,264) 101 Stanley & Co. Natural International Resources Ltd. plc 500,000 Morgan Energy Transfer 1.00% BBB- 3/20/20 (18,003) 3,512 Stanley & Co. Partners LP International plc 250,000 Morgan Noble Holding 1.00% BBB 3/20/20 (31,187) (1,432) Stanley & Co. International Ltd. International plc 250,000 Morgan Weatherford 1.00% BBB- 3/20/20 (28,843) 4,240 Stanley & Co. International International Ltd. plc The accompanying notes are an integral part of these financial statements. 26 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 CREDIT DEFAULT SWAP AGREEMENTS -- SELL PROTECTION (continued) ------------------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Credit Expiration Received Appreciation Principal ($)(1) Counterparty Entity/Index Coupon Rating(2) Date (Paid) (Depreciation) ------------------------------------------------------------------------------------------------------------------- 250,000 Morgan Sabine Oil & 5.00% CCC 3/20/15 $ (3,750) $ 1,991 Stanley & Co. Gas Corp. International plc 125,000 Morgan Sears Roebuck 5.00% CCC+ 3/20/15 (5,625) 5,573 Stanley & Co. Acceptance Corp. International plc ------------------------------------------------------------------------------------------------------------------- $(887,866) $ 446,237 =================================================================================================================== (1) The notional amount is the maximum amount that a seller of credit protection would be obligated to pay upon occurrence of a credit event. (2) Based on Standard & Poor's rating or the issuer of the weighted average rating of all the underlying securities of the index. Principal amounts are denominated in U.S. Dollars unless otherwise noted: EUR Euro INTEREST RATE SWAP AGREEMENTS ------------------------------------------------------------------------------------------------------------ Net Annual Premiums Unrealized Notional Pay / Floating Fixed Expiration Received Appreciation Principal ($) Counterparty Receive Rate Rate Date (Paid) (Depreciation) ------------------------------------------------------------------------------------------------------------ 478,734 Chicago Receive LIBOR USD 1.819% 8/7/19 $ 2 $ (5,618) Mercantile 3 Month Exchange 1,664,879 Chicago Receive LIBOR USD 2.660% 8/7/24 13 (85,437) Mercantile 3 Month Exchange 2,959,079 Chicago Receive LIBOR USD 2.624% 2/12/25 13 3,731 Mercantile 3 Month Exchange 3,026,292 Chicago Receive LIBOR USD 2.808% 2/19/25 14 (19,931) Mercantile 3 Month Exchange ------------------------------------------------------------------------------------------------------------ $ 42 $ (107,255) ============================================================================================================ The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 27 Schedule of Investments | 2/28/15 (unaudited) (continued) Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below. Level 1 - quoted prices in active markets for identical securities. Level 2 - other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.) See Notes to Financial Statements -- Note 1A. Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments) See Notes to Financial Statements -- Note 1A. Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued using fair value methods (other than prices supplied by independent pricing services or broker-dealers) are categorized as Level 3. See Notes to Financial Statements -- Note 1A. The following is a summary of the inputs used as of February 28, 2015, in valuing the Fund's assets: ----------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total ----------------------------------------------------------------------------------------- Convertible Corporate Bonds $ -- $ 275,766 $ -- $ 275,766 Preferred Stocks -- 264,800 -- 264,800 Convertible Preferred Stocks 234,000 -- -- 234,000 Asset Backed Securities -- 313,950 -- 313,950 Collateralized Mortgage Obligations -- 6,817,906 -- 6,817,906 Corporate Bonds -- 1,081,209 -- 1,081,209 U.S. Government and Agency Obligations -- 1,274,990 -- 1,274,990 Foreign Government Bonds -- 12,601,750 -- 12,601,750 Senior Floating Rate Loan Interests -- 941,075 -- 941,075 Mutual Fund 1,093,897 -- -- 1,093,897 Repurchase Agreements -- 3,505,000 -- 3,505,000 ----------------------------------------------------------------------------------------- Total $ 1,327,897 $27,076,446 $ -- $28,404,343 ========================================================================================= Other Financial Instruments Net Unrealized Appreciation on Credit Default Swaps $ -- $ 525,329 $ -- $ 525,329 Net Unrealized Depreciation on Centrally Cleared Credit Default Swaps -- (47,028) -- (47,028) Net Unrealized Depreciation on Interest Rate Swaps -- (107,255) -- (107,255) Net Unrealized Depreciation on Futures Contracts (1,891) -- -- (1,891) Net Unrealized Appreciation on Forward Foreign Currency Contracts -- 107,294 -- 107,294 Net Unrealized Depreciation on Forward Foreign Currency Contracts -- (17,629) -- (17,629) ----------------------------------------------------------------------------------------- Total Other Financial Instruments $ (1,891) $ 460,711 $ -- $ 458,820 ========================================================================================= The accompanying notes are an integral part of these financial statements. 28 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Transfers are calculated based on beginning period values. During the six months ended February 28, 2015, there were no transfers between Levels 1, 2 and 3. The following is a summary of the fair valuation of certain Portfolio's assets as of February 28, 2015: ----------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total ----------------------------------------------------------------------------------------- Assets: Futures collateral $174,997 $ -- $ -- $ 174,997 Centrally cleared swap collateral -- 513,330 -- 513,330 Foreign currencies -- 276,295 -- 276,295 Liabilities: Variation margin for futures contracts 5,385 -- -- 5,385 Variation margin for centrally cleared swap contracts -- 2,744 -- 2,744 ----------------------------------------------------------------------------------------- Total $180,382 $ 792,369 $ -- $ 972,751 ========================================================================================= The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 29 Statement of Assets and Liabilities | 2/28/15 (unaudited) ASSETS: Investment in securities (cost $24,793,643) $24,899,343 Repurchase agreements (cost $3,505,000) 3,505,000 ----------------------------------------------------------------------------------------- Total investment in securities (cost $28,298,643) 28,404,343 Futures collateral 174,997 Centrally cleared swap collateral 513,330 Foreign currencies, at value (cost $276,462) 276,295 Receivables -- Investment securities sold 705,990 Swap payments 65,361 Dividends 12,484 Interest 38,868 Due from Pioneer Investment Management, Inc. 26,580 Net unrealized appreciation on forward foreign currency contracts 107,294 Net unrealized appreciation on swap contracts 559,131 Other assets 56,036 ----------------------------------------------------------------------------------------- Total assets $30,940,709 ========================================================================================= LIABILITIES: Payables -- Investment securities purchased $ 2,829,947 Trustee fees 1,127 Variation margin for futures contracts 5,385 Variation margin for centrally cleared swap contracts 2,744 Due to custodian 215,221 Net unrealized depreciation on forward foreign currency contracts 17,629 Net unrealized depreciation on swap contracts 141,057 Net unrealized depreciation on centrally cleared swap contracts 47,028 Net unrealized depreciation on futures contracts 1,891 Swap contracts, net premiums received 1,294,302 Due to affiliates 24,219 Accrued expenses 62,768 ----------------------------------------------------------------------------------------- Total liabilities $ 4,643,318 ========================================================================================= NET ASSETS: Paid-in capital $26,194,439 Distributions in excess of net investment income (489,620) Accumulated net realized gain on investments, futures contracts, written swaptions, swap contracts, and foreign currency transactions 28,052 Net unrealized appreciation on investments 105,700 Net unrealized depreciation on futures contracts (1,891) Net unrealized appreciation on swap contracts 371,046 Net unrealized appreciation on forward foreign currency contracts and other assets and liabilities denominated in foreign currencies 89,665 ----------------------------------------------------------------------------------------- Total net assets $26,297,391 ========================================================================================= NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $8,861,685/882,339 shares) $ 10.04 Class C (based on $8,744,694/874,039 shares) $ 10.00 Class Y (based on $8,691,012/864,340 shares) $ 10.06 MAXIMUM OFFERING PRICE: Class A ($10.04/95.5%) $ 10.51 ========================================================================================= The accompanying notes are an integral part of these financial statements. 30 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Statement of Operations (unaudited) For the Six Months Ended 2/28/15 INVESTMENT INCOME: Dividends $ 111,337 Interest 150,239 -------------------------------------------------------------------------------------------------------- Total investment income $ 261,576 -------------------------------------------------------------------------------------------------------- EXPENSES: Management fees $ 133,843 Distribution fees Class A 10,727 Class C 42,328 Transfer Agent fees Class A 344 Class C 176 Class Y 134 Shareholder communications expense 887 Administrative reimbursement 11,129 Custodian fees 22,319 Registration fees 29,271 Professional fees 42,812 Printing fees 11,268 Pricing fees 4,676 Fees and expenses of nonaffiliated Trustees 2,999 Miscellaneous 14,515 -------------------------------------------------------------------------------------------------------- Total expenses $ 327,428 -------------------------------------------------------------------------------------------------------- Less fees waived and expenses reimbursed by Pioneer Investment Management, Inc. (108,663) -------------------------------------------------------------------------------------------------------- Net expenses $ 218,765 -------------------------------------------------------------------------------------------------------- Net investment income $ 42,811 -------------------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FUTURES CONTRACTS, WRITTEN OPTIONS, WRITTEN SWAPTIONS, SWAP CONTRACTS AND FOREIGN CURRENCY TRANSACTIONS: Net realized gain (loss) on: Investments $ (1,356,636) Futures contracts (308,391) Written options 5,296 Written swaptions 4,625 Swap contracts (3,264) Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies 2,070,711 $ 412,341 -------------------------------------------------------------------------------------------------------- Change in net unrealized appreciation (depreciation) on: Investments $ 47,022 Futures contracts 50,673 Written swaptions (38,043) Swap contracts 402,173 Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (426,894) $ 34,931 -------------------------------------------------------------------------------------------------------- Net gain on investments, futures contracts, written options, written swaptions, swap contracts, and foreign currency transactions $ 447,272 -------------------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 490,083 ======================================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 31 Statements of Changes in Net Assets -------------------------------------------------------------------------------------------------- Six Months Ended 2/28/15 12/30/13 (a) (unaudited) to 8/31/14 -------------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income (loss) $ 42,811 $ (74,108) Net realized gain (loss) on investments, futures contracts, written options, written swaptions, swap contracts, and foreign currency transactions 412,341 (351,336) Change in net unrealized appreciation (depreciation) on investments, futures contracts, written swaptions, swap contracts, and foreign currency transactions 34,931 529,589 -------------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 490,083 $ 104,145 -------------------------------------------------------------------------------------------------- DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.21 and $0.00 per share, respectively) $ (183,685) $ -- Class C ($0.16 and $0.00 per share, respectively) (139,321) -- Class Y ($0.23 and $0.00 per share, respectively) (194,215) -- -------------------------------------------------------------------------------------------------- Total distributions to shareowners $ (517,221) $ -- -------------------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS: (b) Net proceeds from sale of shares $ 705,142 $ 25,393,752 Reinvestment of distributions 194,215 -- Cost of shares repurchased (72,713) (12) -------------------------------------------------------------------------------------------------- Net increase in net assets resulting from Fund share transactions $ 826,644 $ 25,393,740 -------------------------------------------------------------------------------------------------- Net increase in net assets $ 799,506 $ 25,497,885 NET ASSETS: Beginning of period $25,497,885 $ -- -------------------------------------------------------------------------------------------------- End of period $26,297,391 $ 25,497,885 -------------------------------------------------------------------------------------------------- Undistributed (distributions in excess) of net investment income $ (489,620) $ (15,210) ================================================================================================== (a) Class A, Class C and Class Y shares commenced operations on December 30, 2013. (b) At February 28, 2015, PIM owned 95.1% of the value of the outstanding shares of Pioneer Long/Short Global Bond Fund. The accompanying notes are an integral part of these financial statements. 32 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 --------------------------------------------------------------------------------------- '15 Shares '15 Amount (unaudited) (unaudited) '14 Shares '14 Amount --------------------------------------------------------------------------------------- Class A* Shares sold 13,200 $ 139,738 855,960 $8,559,806 Reinvestment of distributions 18,673 -- -- -- Less shares repurchased (5,493) (55,086) (1) (12) --------------------------------------------------------------------------------------- Net increase 26,380 $ 268,395 855,959 $8,559,794 ======================================================================================= Class C* Shares sold 21,342 $ 219,936 839,743 $8,397,613 Reinvestment of distributions 14,202 -- -- -- Less shares repurchased (1,248) (12,299) -- -- --------------------------------------------------------------------------------------- Net increase 34,296 $ 346,960 839,743 $8,397,613 ======================================================================================= Class Y* Shares sold 1,524 $ 22,402 843,613 $8,436,333 Reinvestment of distributions 19,737 194,215 -- -- Less shares repurchased (534) (5,328) -- -- --------------------------------------------------------------------------------------- Net increase 20,727 $ 211,289 843,613 $8,436,333 ======================================================================================= * Class A, Class C and Class Y shares commenced operations on December 30, 2013. The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 33 Financial Highlights -------------------------------------------------------------------------------------------- Six Months Ended 2/28/15 12/30/13 (unaudited) to 8/31/14 -------------------------------------------------------------------------------------------- Class A Net asset value, beginning of period $ 10.05 $ 10.00 -------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.03 $ (0.02) Net realized and unrealized gain (loss) on investments 0.17 0.07 -------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.20 $ 0.05 -------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.21) $ -- -------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.01) $ 0.05 -------------------------------------------------------------------------------------------- Net asset value, end of period $ 10.04 $ 10.05 ============================================================================================ Total return* 2.06% 0.50%*** Ratio of net expenses to average net assets 1.55%** 1.55%** Ratio of net investment income (loss) to average net assets 0.50%** (0.27)%** Portfolio turnover rate 133%** 65%** Net assets, end of period (in thousands) $ 8,862 $ 8,604 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 2.41%** 2.74%** Net investment income (loss) to average net assets (0.36)%** (1.46)%** ============================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not Annualized. The accompanying notes are an integral part of these financial statements. 34 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------- Six Months Ended 2/28/15 12/30/13 (unaudited) to 8/31/14 -------------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 10.00 $ 10.00 -------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ (0.01) $ (0.07) Net realized and unrealized gain (loss) on investments 0.17 0.07 -------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.16 $ -- -------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.16) $ -- -------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ -- $ -- -------------------------------------------------------------------------------------------- Net asset value, end of period $ 10.00 $ 10.00 ============================================================================================ Total return* 1.67% 0.00%*** Ratio of net expenses to average net assets 2.30%** 2.30%** Ratio of net investment income (loss) to average net assets (0.25)%** (1.03)%** Portfolio turnover rate 133%** 65%** Net assets, end of period (in thousands) $ 8,745 $ 8,399 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 3.15%** 3.48%** Net investment income (loss) to average net assets (1.10)%** (2.21)%** ============================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not Annualized. The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 35 Financial Highlights (continued) -------------------------------------------------------------------------------------------- Six Months Ended 2/28/15 12/30/13 (unaudited) to 8/31/14 -------------------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 10.07 $ 10.00 -------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.04 $ (0.00)(a) Net realized and unrealized gain (loss) on investments 0.18 0.07 -------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.22 $ 0.07 -------------------------------------------------------------------------------------------- Distribution to shareowners: Net investment income $ (0.23) $ -- -------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.01) $ 0.07 -------------------------------------------------------------------------------------------- Net asset value, end of period $ 10.06 $ 10.07 ============================================================================================ Total return* 2.24% 0.70%*** Ratio of net expenses to average net assets 1.30%** 1.30%** Ratio of net investment income (loss) to average net assets 0.75%** (0.02)%** Portfolio turnover rate 133%** 65%** Net assets, end of period (in thousands) $ 8,691 $ 8,494 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 2.15%** 2.48%** Net investment income (loss) to average net assets (0.10)%** (1.20)%** ============================================================================================ * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. *** Not Annualized. (a) Amount rounds to less than $0.01 or $(0.01) per share. The accompanying notes are an integral part of these financial statements. 36 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Notes to Financial Statements | 2/28/15 (unaudited) 1. Organization and Significant Accounting Policies Pioneer Long/Short Global Bond Fund (the Fund) is one of five portfolios comprising Pioneer Series Trust V, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as a non-diversified, open-end management investment company. The Fund's investment objective is to seek total return. The Fund offers three classes of shares designated as Class A, Class C, and Class Y shares. Class A, Class C and Class Y shares commenced operations on December 30, 2013. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board the flexibility to specify either per-share voting or dollar-weighted voting when submitting matters for shareholder approval. Under per-share voting, each share of a class of the Fund is entitled to one vote. Under dollar-weighted voting, a shareholder's voting power is determined not by the number of shares owned, but by the dollar value of the shares on the record date. Each share class has exclusive voting rights with respect to matters affecting only that class, including with respect to the distribution plan for that class. There is no distribution plan for Class Y shares. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles that require the management of the Fund to, among other things, make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses and gains and losses on investments during the reporting period. Actual results could differ from those estimates. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements, which are consistent with those policies generally accepted in the investment company industry: Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 37 A. Security Valuation Security transactions are recorded as of trade date. The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. Senior floating rate loan interests (senior loans) are valued in accordance with guidelines established by the Board of Trustees at the mean between the last available bid and asked prices from one or more brokers or dealers as obtained from Loan Pricing Corporation, an independent pricing service. If price information is not available from Loan Pricing Corporation, or if the price information is deemed to be unreliable, price information will be obtained from an alternative loan interest pricing service. If no reliable price quotes are available from either the primary or alternative pricing service, broker quotes will be solicited. Fixed income securities are valued at prices supplied by independent pricing services, which consider such factors as market prices, market events, quotations from one or more brokers, Treasury spreads, yields, maturities and ratings. Valuations may be supplemented by dealers and other sources, as required. Equity securities that have traded on an exchange are valued at the last sale price on the principal exchange where they are traded. Equity securities that have not traded on the date of valuation, or securities for which sale prices are not available, generally are valued using the mean between the last bid and asked prices. Shares of money market mutual funds are valued at such funds' net asset value. Cash may include overnight time deposits at approved financial institutions. Trading in foreign securities is substantially completed each day at various times prior to the close of the NYSE. The values of such securities used in computing the net asset value of the Fund's shares are determined as of such times. Securities or loan interests for which independent pricing services are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of Pioneer Investment Management, Inc. (PIM), the Fund's investment adviser, pursuant to procedures adopted by the Fund's Board of Trustees. PIM's fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. 38 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. PIM's fair valuation team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. At February 28, 2015, no securities were valued using fair value methods (other than securities valued using prices supplied by independent pricing services or broker-dealers). B. Investment Income and Transactions Principal amounts of mortgage-backed securities are adjusted for monthly paydowns. Premiums and discounts related to certain mortgage-backed securities are amortized or accreted in proportion to the monthly paydowns. All discounts/premiums on debt securities are accreted/amortized for financial reporting purposes over the life of the respective securities, and such accretion/amortization is included in interest income. Dividend income is recorded on the ex-dividend date except that certain dividends from foreign securities where the ex-dividend date may have passed are recorded as soon as the Fund becomes aware of the ex-dividend data in the exercise of reasonable diligence. Interest income is recorded on the accrual basis. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. C. Foreign Currency Translation The books and records of the Fund are maintained in U.S. dollars. Amounts denominated in foreign currencies are translated into U.S. dollars using current exchange rates. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 39 Net realized gains and losses on foreign currency transactions, if any, represent, among other things, the net realized gains and losses on foreign currency contracts, disposition of foreign currencies and the difference between the amount of income accrued and the U.S. dollars actually received. Further, the effects of changes in foreign currency exchange rates on investments are not segregated in the statement of operations from the effects of changes in the market price of those securities but are included with the net realized and unrealized gain or loss on investments. D. Futures Contracts The Fund may enter into futures transactions in order to attempt to hedge against changes in interest rates, securities prices and currency exchange rates or to seek to increase total return. Futures contracts are types of derivatives. All futures contracts entered into by the Fund are traded on a futures exchange. Upon entering into a futures contract, the Fund is required to deposit with a broker an amount of cash or securities equal to the minimum "initial margin" requirements of the associated futures exchange. The amount of cash deposited with the broker as collateral at February 28, 2015 was $174,997. Subsequent payments for futures contracts ("variation margin") are paid or received by the Fund, depending on the daily fluctuation in the value of the contracts, and are recorded by the Fund as unrealized appreciation or depreciation. When the contract is closed, the Fund realizes a gain or loss equal to the difference between the opening and closing value of the contract as well as any fluctuation in foreign currency exchange rates where applicable. The use of futures contracts involves, to varying degrees, elements of market, interest rate, currency exchange rate and counterparty risks, which may exceed the amount recognized by the Fund. Changes in value of the contracts may not directly correlate to the changes in value of the underlying securities. The average value of contracts open during the six months ended February 28, 2015 was $12,638,471. At February 28, 2015, open futures contracts were as follows: ----------------------------------------------------------------------------------- Number of Unrealized Contracts Settlement Appreciation Type Long/(Short) Month Value (Depreciation) ----------------------------------------------------------------------------------- F/C 90-Day Euro (53) 6/17 $(12,996,925) $ 3,313 F/C U.S. 5 Year Note (6) 3/15 (719,953) (5,204) ----------------------------------------------------------------------------------- Total $(13,716,878) $(1,891) =================================================================================== 40 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 E. Forward Foreign Currency Contracts The Fund may enter into forward foreign currency contracts (contracts) for the purchase or sale of a specific foreign currency at a fixed price on a future date. All contracts are marked to market daily at the applicable exchange rates, and any resulting unrealized appreciation or depreciation is recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a contract is offset by entry into a closing transaction or extinguished by delivery of the currency. Risks may arise upon entering into these contracts from the potential inability of counterparties to meet the terms of the contract and from unanticipated movements in the value of foreign currencies relative to the U.S. dollar (see Note 5). F. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no federal income tax provision is required. As of August 31, 2014, the Fund did not accrue any interest or penalties with respect to uncertain tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. generally accepted accounting principles. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Capital accounts within the financial statements are adjusted for permanent book/tax differences to reflect tax character, but are not adjusted for temporary differences. The tax character of current year distributions payable will be determined at the end of the current taxable year. There were no distributions paid during the fiscal year ended August 31, 2014. The following shows the components of distributable earnings (losses) on a federal income tax basis at August 31, 2014: --------------------------------------------------------------------------- 2014 --------------------------------------------------------------------------- Distributable earnings: Undistributed ordinary income $ 517,080 Capital loss carryforward (436,853) Unrealized appreciation 49,863 --------------------------------------------------------------------------- Total $ 130,090 =========================================================================== Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 41 The difference between book-basis and tax-basis net unrealized appreciation is attributable to the tax deferral of losses or wash sales, adjustments relating to catastrophe bonds and the mark to market of forward, swap and futures contracts. G. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit), earned $41 in underwriting commissions on the sale of Class A shares during the six months ended February 28, 2015. H. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Distribution fees are calculated based on the average daily net asset value attributable to Class A and Class C shares of the Fund, respectively (see Note 4). Class Y shares do not pay distribution fees. All expenses and fees paid to the transfer agent, Pioneer Investment Management Shareholder Services, Inc. (PIMSS), for its services are allocated among the classes of shares based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). Distributions to shareowners are recorded as of the ex-dividend date. Distributions paid by the Fund with respect to each class of shares are calculated in the same manner and at the same time, except that net investment income dividends to Class A, Class C and Class Y shares can reflect different transfer agent and distribution expense rates. I. Risks When interest rates rise, the prices of fixed-income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed-income securities in the Fund will generally rise. Investments in the Fund are subject to possible loss due to the financial failure of underlying issues and their ability to meet their debt obligations. The Fund's prospectus contains unaudited information regarding the Fund's principal risks. Please refer to that document when considering the Fund's principal risks. 42 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 J. Credit Default Swaption Writing The Fund may write put and covered call swaptions on portfolio securities in order to attempt to hedge against changes in the value of portfolio securities or to seek to increase total return. When a swaption is written, the Fund receives a premium and becomes obligated to purchase or sell the underlying security at a fixed price upon the exercise of the swaption. When the Fund writes a swaption, an amount equal to the premium received by the Fund is recorded as a liability and is subsequently adjusted to the current value of the swaption written. Premiums received from writing swaptions that expire unexercised are treated by the Fund on the expiration date as realized gains from investments. The difference between the premium and the amount paid on effecting a closing purchase transaction, including brokerage commissions, is also treated as a realized gain or, if the premium is less than the amount paid for the closing purchase transaction, as a realized loss. If a call swaption is exercised, the premium is added to the proceeds from the sale of the underlying security in determining whether the Fund has realized a gain or loss. The Fund as writer of a swaption bears the market risk of an unfavorable change in the price of the security underlying the written swaption. The Fund did not hold any written swaption contracts at February 28, 2015. The average value of contracts open during the six months ended February 28, 2015 was $2,036. Transactions in written swaptions for the period ended February 28, 2015 are summarized as follows: ---------------------------------------------------------------------------- Number of Premiums Contracts Received ---------------------------------------------------------------------------- Options outstanding at beginning of period (2,500,000) $ 38,750 Options opened -- -- Options exercised -- -- Options closed -- -- Options expired 2,500,000 (38,750) ---------------------------------------------------------------------------- Options outstanding at end of period -- $ -- ============================================================================ Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 43 K. Credit Default Swap Agreements A credit default swap is a contract between a buyer of protection and a seller of protection against a pre-defined credit event. The Fund may buy or sell credit default swap contracts to seek to increase the Fund's income, or to attempt to hedge the risk of default on portfolio securities. A credit default swap index is used to hedge risk or take a position on a basket of credit entities or indices. As a seller of protection, the Fund would be required to pay the notional (or other agreed-upon) value of the referenced debt obligation to the counterparty in the event of a default by a U.S. or foreign corporate issuer of a debt obligation, which would likely result in a loss to the Fund. In return, the Fund would receive from the counterparty a periodic stream of payments during the term of the contract provided that no event of default occurred. The maximum exposure of loss to the seller would be the notional value of the credit default swaps outstanding. If no default occurs, the Fund would keep the stream of payments and would have no payment obligation. The Fund may also buy credit default swap contracts in order to hedge against the risk of default of debt securities, in which case the Fund would function as the counterparty referenced above. When the Fund enters into a credit default swap contract, the protection buyer makes an upfront or periodic payment to the protection seller in exchange for the right to receive a contingent payment. An upfront payment made by the Fund, as the protection buyer, is recorded as an asset in the Statement of Assets and Liabilities. Periodic payments received or paid by the Fund are recorded as realized gains or losses in the Statement of Operations. Credit default swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Payments received or made as a result of a credit event or upon termination of the contract are recognized, net of the appropriate amount of the upfront payment, as realized gains or losses in the Statement of Operations. Credit default swap contracts involving the sale of protection may involve greater risks than if the Fund had invested in the referenced debt instrument directly. Credit default swap contracts are subject to general market risk, liquidity risk, counterparty risk and credit risk. If the Fund is a protection buyer and no credit event occurs, it will lose its investment. If the Fund is a protection seller and a credit event occurs, the value of the referenced debt 44 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 instrument received by the Fund, together with the periodic payments received, may be less than the amount the Fund pays to the protection buyer, resulting in a loss to the Fund. Certain swap contracts that are cleared through a central clearinghouse are referred to as centrally cleared swaps. All payments made or received by the Fund are pursuant to a centrally cleared swap contract with the central clearing party rather than the original counterparty. Upon entering into a centrally cleared swap contract, the Fund is required to make an initial margin deposit, either in cash or in securities. The daily change in value on open centrally cleared contracts is recorded as variation margin on centrally cleared swaps on the Statement of Assets and Liabilities. Open credit default swap contracts at February 28, 2015 are listed in the Schedule of Investments. The average value of swap contracts open during the six months ended February 28, 2015 was $563,949. L. Interest Rate Swap Contracts The Fund may enter into interest rate swaps to attempt to hedge against interest rate fluctuations or to enhance its income. Pursuant to the interest rate swap agreement, the Fund negotiates with a counterparty to exchange a periodic stream of payments based on a benchmark interest rate. One cash flow stream will typically be a floating rate payment based upon the specified floating benchmark interest rate while the other is typically a fixed interest rate. Payment flows are usually netted against each other, with the difference being paid by one party to the other on a monthly basis. Periodic payments received or paid by the Fund are recorded as realized gains or losses in the Statement of Operations. Interest rate swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Interest rate swap contracts are subject to counterparty risk and movements in interest rates. Open interest rate swap contracts at February 28, 2015 are listed in the Schedule of Investments. The average value of interest swap contracts open during the six months ended February 28, 2015 was $77,701. M. Repurchase Agreements With respect to repurchase agreements entered into by the Fund, the value of the underlying securities (collateral), including accrued interest, is required to be equal to or in excess of the repurchase price. The collateral for all repurchase agreements is held in safekeeping in the customer-only account of the Fund's custodian or a subcustodian of the Fund. PIM is responsible for determining that the value of the collateral remains at least equal to the repurchase price. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 45 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, manages the Fund's portfolio. Management fees are calculated daily at an annual rate of 1.05% of the average daily net assets of the Fund up to $1 billion and 0.95% of the Fund's average daily net assets over $1 billion of the Fund. For the period ending February 28, 2015, the effective management fee was equivalent to 1.05% of the Fund's average daily net assets. PIM has contractually agreed to limit ordinary operating expenses to the extent required to reduce Fund expenses to 1.55%, 2.30% and 1.30% of the average daily net assets attributable to Class A, Class C and Class Y shares, respectively. These expense limitations are in effect through January 1, 2016. Fees waived and expenses reimbursed during the six months ended February 28, 2015 are reflected on the Statement of Operations. Fees and expenses of other investment companies in which the Fund may invest are not included in the expense limitations noted above. There can be no assurance that PIM will extend the expense limitation agreement for a class of shares beyond the date referred to above. In addition, under the management and administration agreements, certain other services and costs, including accounting, regulatory reporting and insurance premiums, are paid by the Fund as administrative reimbursements. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $23,240 in management fees, administrative costs and certain other reimbursements payable to PIM at February 28, 2015. 3. Transfer Agent PIMSS, a wholly owned indirect subsidiary of UniCredit, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. In addition, the Fund reimburses PIMSS for out-of-pocket expenses incurred by PIMSS related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the period ended February 28, 2015, such out-of-pocket expenses by class of shares were as follows: ------------------------------------------------------------------------------- Shareholder Communications: ------------------------------------------------------------------------------- Class A $424 Class C 196 Class Y 267 ------------------------------------------------------------------------------- Total $887 =============================================================================== 46 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $80 in transfer agent fees and out-of-pocket reimbursements payable from PIMSS at February 28, 2015. 4. Distribution Plan The Fund has adopted a Distribution Plan pursuant to Rule 12b-1 of the Investment Company Act of 1940 with respect to its Class A and Class C shares. Pursuant to the Plan, the Fund pays PFD 0.25% of the average daily net assets attributable to Class A shares as compensation for personal services and/or account maintenance services or distribution services with regard to Class A shares. Pursuant to the Plan, the Fund also pays PFD 1.00% of the average daily net assets attributable to Class C shares. The fee for Class C shares consists of a 0.25% service fee and a 0.75% distribution fee paid as compensation for personal services and/or account maintenance services or distribution services with regard to Class C shares. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $899 in distribution fees payable to PFD at February 28, 2015. In addition, redemptions of each class of shares (except Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class Y shares. Proceeds from the CDSC are paid to PFD. For the six months ended February 28, 2015, there were no CDSCs paid to PFD. 5. Forward Foreign Currency Contracts At February 28, 2015, the Fund had entered into various forward foreign currency contracts that obligate the Fund to deliver or take delivery of currencies at specified future maturity dates. Alternatively, prior to the settlement date of a forward foreign currency contract, the Fund may close out such contract by entering into an offsetting contract. The average value of forward foreign currency contracts open during the six months ended February 28, 2015 was $12,464,896. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 47 Open forward foreign currency contracts at February 28, 2015 were as follows: --------------------------------------------------------------------------------------------------------- Quantity Net Purchased/ Book Settlement US $ Value Unrealized Currency Counterparty (Sold) Value Date at 2/28/15 Appreciation --------------------------------------------------------------------------------------------------------- CHF (Swiss Franc) Citibank NA (344,197) $ 364,272 5/26/15 $ (362,015) $ 2,257 EURO (European Euro) Citibank NA (782,715) 889,693 5/26/15 (876,752) 12,941 EURO (European Euro) Citibank NA 80,596 91,553 3/2/15 (90,183) 1,370 HUF (Hungarian Forint) Citibank NA (22,500,316) 83,433 5/26/15 (82,919) 514 JPY (Japanese Yen) Citibank NA (74,566,167) 626,304 5/26/15 (623,642) 2,662 THB (Thai Baht) Citibank NA 1,638,521 50,650 2/27/15 (50,619) 31 TRY (Turkish Lira) Citibank NA (491,159) 194,538 5/26/15 (191,623) 2,915 CAD (Canadian JP Morgan Dollar) Chase Bank (5,698,646) 4,576,531 4/17/15 (4,550,791) 25,740 CZK (Czech JP Morgan Koruna) Chase Bank (7,947,651) 328,358 5/26/15 (323,709) 4,649 EURO (European JP Morgan Euro) Chase Bank (2,166,226) 2,472,112 4/17/15 (2,425,266) 46,846 EURO (European JP Morgan Euro) Chase Bank (114,930) 130,436 5/26/15 (128,738) 1,698 GBP (British Pound JP Morgan Sterling) Chase Bank (163,281) 252,231 5/26/15 (251,875) 356 IDR (Indonesian JP Morgan Rupiah) Chase Bank 2,112,936,713 (159,708) 5/26/15 161,072 1,364 MXN (Mexican JP Morgan Peso) Chase Bank 4,839,832 (321,564) 5/26/15 322,270 706 SGD (Singapore JP Morgan Dollar) Chase Bank (447,397) 328,555 5/26/15 (327,590) 965 TWD (New JP Morgan Taiwan Dollar) Chase Bank (3,369,762) 107,557 5/26/15 (107,215) 342 ZAR (South JP Morgan African Rand) Chase Bank (1,913,447) 163,624 5/26/15 (161,686) 1,938 --------------------------------------------------------------------------------------------------------- $ 107,294 ========================================================================================================= 48 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 -------------------------------------------------------------------------------------------------------- Quantity Net Purchased/ Book Settlement US $ Value Unrealized Currency Counterparty (Sold) Value Date at 2/28/15 Depreciation -------------------------------------------------------------------------------------------------------- CAD (Canadian Dollar) Citibank NA (578,238) $ 459,581 5/26/15 $ (461,540) $ (1,959) GBP (British Pound Sterling) Citibank NA (1,934,831) 2,978,187 4/17/15 (2,985,413) (7,226) NOK (Norwegian Krone) Citibank NA 2,504,524 (328,825) 5/26/15 325,986 (2,839) SEK (Swedish Krona) Citibank NA (2,769,439) 329,649 5/26/15 (332,193) (2,544) AUD (Australian JP Morgan Dollar) Chase Bank (592,608) 460,593 5/26/15 (460,696) (103) CLP (Chilean JP Morgan Peso) Chase Bank (51,945,557) 83,000 5/26/15 (83,599) (599) INR Indian JP Morgan Rupee Chase Bank 29,278,760 (466,222) 5/26/15 465,748 (474) TWD (New JP Morgan Taiwan Dollar) Chase Bank (6,032,367) 190,046 5/26/15 (191,931) (1,885) -------------------------------------------------------------------------------------------------------- $ (17,629) ======================================================================================================== 6. Expense Offset Arrangements The Fund has entered into certain expense offset arrangements with PIMSS which may result in a reduction in the Fund's total expenses due to interest earned on cash held by PIMSS. For the period ended February 28, 2015, the Fund's expenses were not reduced under such arrangements. 7. Assets and Liabilities Offsetting Financial instruments subject to an enforceable master netting agreement have been offset on the Statement of Assets and Liabilities. The following charts show gross assets and liabilities of the Fund as of February 28, 2015. ------------------------------------------------------------------------------------------------------ Assets: Net Gross Amounts Gross Amounts Amounts of Assets Not Offset in Offset Presented the Statement of in the in the Assets and Liabilities Gross Statement Statement -------------------------- Amounts of of Assets of Assets Cash Recognized and and Financial Collateral Net Description Assets Liabilities Liabilities Instruments Received* Amount ------------------------------------------------------------------------------------------------------ Forward foreign currency contracts $107,294 $ -- $107,294 $ -- $ -- $ 107,294 Swap contracts 559,131 (188,085) 261,046 -- -- 2 61,046 ------------------------------------------------------------------------------------------------------ $666,425 $(188,085) $368,340 $ -- $ -- $ 368,340 ====================================================================================================== Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 49 ------------------------------------------------------------------------------------------------------ Liabilities: Net Gross Amounts Gross Amounts Amounts of Liabilities Not Offset in Offset Presented the Statement of in the in the Assets and Liabilities Gross Statement Statement -------------------------- Amounts of of Assets of Assets Cash Recognized and and Financial Collateral Net Description Liabilities Liabilities Liabilities Instruments Pledged* Amount ------------------------------------------------------------------------------------------------------- Forward foreign currency contracts $ 17,629 $ -- $ 17,629 $ -- $ -- $ 17,629 Swap contracts 188,085 (188,085) -- -- -- -- ------------------------------------------------------------------------------------------------------- $ 205,714 $ (188,085) $ 17,629 $ -- $ -- $ 17,629 ======================================================================================================= 8. Additional Disclosures about Derivative Instruments and Hedging Activities: Values of derivative instruments as of February 28, 2015 were as follows: ---------------------------------------------------------------------------------------------- Derivatives not accounted for as Asset Derivatives 2015 Liabilities Derivatives 2015 hedging instruments --------------------------- -------------------------------- under Accounting Statement of Assets Statement of Assets Standards Codification and Liabilities and Liabilities (ASC) 815 Location Value Location Value ---------------------------------------------------------------------------------------------- Forward Foreign Net unrealized Net unrealized Currency Contracts appreciation on depreciation on forward foreign forward foreign currency contracts $107,294 currency contracts $ 17,629 Futures Contracts Net unrealized Net unrealized appreciation on depreciation on futures contracts -- futures contracts 1,891 Swap Contracts Net unrealized Net unrealized appreciation on depreciation on swap contracts 559,131 swap contracts 188,085 ---------------------------------------------------------------------------------------------- Total $666,425 $207,605 ============================================================================================== 50 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 The effect of derivative instruments on the Statement of Operations for the six months ended February 28, 2015 was as follows: ------------------------------------------------------------------------------------------------- Change in Derivatives not Unrealized accounted for as Realized Appreciation hedging instruments Location of Gain Gain or Loss (Depreciation) under Accounting or (Loss) on on Derivatives on Derivatives Standards Codification Derivatives Recognized Recognized Recognized (ASC) 815 in Income in Income in Income ------------------------------------------------------------------------------------------------- Futures Contracts Net realized gain (loss) on futures contracts $ (308,391) Futures Contracts Change in unrealized appreciation (depreciation) on futures contracts $ 50,673 Written Swaptions Net realized gain (loss) on written swaptions $ 9,921 Written Swaptions Change in unrealized appreciation (depreciation) on written swaptions $ (38,043) Forward Foreign Currency Contracts Net realized gain (loss) on forward foreign currency contracts $2,158,988 Forward Foreign Currency Contracts Change in unrealized appreciation (depreciation) on forward foreign currency contracts $(433,523) Swap Contracts Net realized gain (loss) on swap contracts $ (3,264) Swap Contracts Change in unrealized appreciation (depreciation) on swap contracts $ 402,173 9. Subsequent Event The Board of Trustees of the Fund has approved the elimination of the Fund's current policy normally to invest at least 40% of the net assets in securities of assets located outside of the United States. In connection with the elimination of this policy, the Fund will be renamed Pioneer Long/Short Bond Fund. These changes are effective on June 1, 2015. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 51 Approval of Investment Advisory Agreement Pioneer Investment Management, Inc. (PIM) serves as the investment adviser to Pioneer Long/Short Global Bond Fund (the Fund) pursuant to an investment advisory agreement between PIM and the Fund. In order for PIM to remain the investment adviser of the Fund, the Trustees of the Fund must determine annually whether to renew the investment advisory agreement for the Fund. The contract review process began in January 2014 as the Trustees of the Fund agreed on, among other things, an overall approach and timeline for the process. Contract review materials were provided to the Trustees in March 2014 and July 2014. Supplemental contract review materials were provided to the Trustees in September 2014. In addition, the Trustees reviewed and discussed the Fund's performance at regularly scheduled meetings throughout the year, and took into account other information related to the Fund provided to the Trustees at regularly scheduled meetings, in connection with the review of the Fund's investment advisory agreement. In March 2014, the Trustees, among other things, discussed the memorandum provided by Fund counsel that summarized the legal standards and other considerations that are relevant to the Trustees in their deliberations regarding the renewal of the investment advisory agreement, and reviewed and discussed the qualifications of the investment management teams, as well as the level of investment by the Fund's portfolio managers in the Fund. In July 2014, the Trustees, among other things, reviewed the Fund's management fee and total expense ratios, the financial statements of PIM and its parent companies, the profitability analyses provided by PIM, and possible economies of scale. The Trustees also reviewed the profitability of the institutional business of PIM and PIM's affiliate, Pioneer Institutional Asset Management, Inc. (together with PIM, "Pioneer"), as compared to that of PIM's fund management business, and considered the differences between the fees and expenses of the Fund and the fees and expenses of Pioneer's institutional accounts, as well as the different services provided by PIM to the Fund and by Pioneer to the institutional accounts. The Trustees further considered contract review materials in September 2014. At a meeting held on September 16, 2014, based on their evaluation of the information provided by PIM and third parties, the Trustees of the Fund, including the Independent Trustees voting separately, unanimously approved the renewal of the investment advisory agreement for another year. In considering the renewal of the investment advisory agreement, the Trustees considered various factors that they determined were relevant, including the factors 52 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 described below. In all quintile rankings referred to throughout this disclosure, first quintile is most favorable to the Fund's shareowners. The Trustees did not identify any single factor as the controlling factor in determining to approve the renewal of the agreement. Nature, Extent and Quality of Services The Trustees considered the nature, extent and quality of the services that had been provided by PIM to the Fund, taking into account the investment objective and strategy of the Fund. The Trustees reviewed the terms of the investment advisory agreement. The Trustees also reviewed PIM's investment approach for the Fund and its research process. The Trustees considered the resources of PIM and the personnel of PIM who provide investment management services to the Fund. They also reviewed the amount of non-Fund assets managed by the portfolio managers of the Fund. The Trustees considered the non-investment resources and personnel of PIM involved in PIM's services to the Fund, including PIM's compliance and legal resources and personnel. The Trustees noted the substantial attention and high priority given by PIM's senior management to the Pioneer fund complex. The Trustees considered that PIM supervises and monitors the performance of the Fund's service providers and provides the Fund with personnel (including Fund officers) and other resources that are necessary for the Fund's business management and operations. The Trustees also considered that, as administrator, PIM is responsible for the administration of the Fund's business and other affairs. The Trustees considered the fees paid to PIM for the provision of administration services. Based on these considerations, the Trustees concluded that the nature, extent and quality of services that had been provided by PIM to the Fund were satisfactory and consistent with the terms of the investment advisory agreement. Performance of the Fund In considering the Fund's performance, the Trustees regularly review and discuss analysis and data prepared by PIM and information comparing the Fund's performance with the performance of its peer group of funds as classified by each of Morningstar, Inc. (Morningstar) and Lipper, and with the performance of the Fund's benchmark index. They also discuss the Fund's performance with PIM on a regular basis. The Trustees confirmed that these regular reviews and discussions were factored into the Trustees' deliberations concerning the renewal of the advisory agreement. For purposes of their contract renewal deliberations, the Trustees considered the discussions held throughout the year regarding the Fund's performance and the performance results of the Fund over various time periods, including the Fund's performance Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 53 results for periods ended June 30, 2014. The Trustees indicated that the Fund's performance was satisfactory and supported the renewal of the investment advisory agreement. Management Fee and Expenses The Trustees considered information showing the fees and expenses of the Fund in comparison to the management fees and expense ratios of its peer group of funds as classified by Morningstar and also to the expense ratios of a peer group of funds selected on the basis of criteria determined by the Independent Trustees for this purpose using data provided by Strategic Insight Mutual Fund Research and Consulting, LLC (Strategic Insight), an independent third party. The Trustees considered that the Fund's management fee for the twelve months ended June 30, 2014 was in the fourth quintile relative to the management fees paid by other funds in its Morningstar peer group for the comparable period. The Trustees also considered the breakpoint in the management fee schedule and the reduced fee rate above a certain asset level. The Trustees noted the investment management expertise and resources required to implement the Fund's complex investment strategy. The Trustees considered that the expense ratio of the Fund's Class A shares for the twelve months ended June 30, 2014 was in the fourth quintile relative to its Morningstar peer group and in the fifth quintile relative its Strategic Insight peer group, in each case for the comparable period. The Trustees noted that PIM was waiving fees and/or reimbursing expenses in order to limit the ordinary operating expenses of the Fund. The Trustees noted the Fund's relatively small asset size compared to most of the other funds in its peer groups, and that the Fund has not been able to take advantage of the economies of scale afforded by greater asset size. The Trustees considered the impact of transfer agency, sub-transfer agency, and other non-management fee expenses on the expense ratios of the Fund. The Trustees noted that they separately review the Fund's transfer agency, sub-transfer agency and intermediary arrangements. The Trustees reviewed management fees charged by Pioneer to institutional and other clients, including publicly offered European funds sponsored by affiliates of Pioneer, unaffiliated U.S. registered investment companies (in a sub-advisory capacity), and unaffiliated foreign and domestic separate accounts. The Trustees also considered PIM's costs in providing services to the Fund and Pioneer's costs in providing services to the other clients and considered the differences in management fees and profit margins for Fund and non-Fund services. In evaluating the fees associated with Pioneer's client accounts, the Trustees took into account the respective demands, resources and complexity associated with the Fund and client accounts. The Trustees noted that, in some instances, the fee rates for those clients were lower than the management fee for the Fund and 54 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 considered that, under the investment advisory agreement with the Fund, PIM performs additional services for the Fund that it does not provide to those other clients or services that are broader in scope, including oversight of the Fund's other service providers and activities related to compliance and the extensive regulatory and tax regimes to which the Fund is subject. The Trustees also considered the different entrepreneurial risks associated with PIM's management of the Fund and Pioneer's management of the other client accounts. The Trustees concluded that the management fee payable by the Fund to PIM was reasonable in relation to the nature and quality of the services provided by PIM to the Fund. Profitability The Trustees considered information provided by PIM regarding the profitability of PIM with respect to the advisory services provided by PIM to the Fund, including the methodology used by PIM in allocating certain of its costs to the management of the Fund. The Trustees also considered PIM's profit margin in connection with the overall operation of the Fund. They further reviewed the financial results realized by PIM and its affiliates from non-fund businesses. The Trustees considered PIM's profit margins with respect to the Fund in comparison to the limited industry data available and noted that the profitability of any adviser was affected by numerous factors, including its organizational structure and method for allocating expenses. The Trustees concluded that PIM's profitability with respect to the management of the Fund was not unreasonable. Economies of Scale The Trustees considered PIM's views relating to economies of scale in connection with the Pioneer Funds as fund assets grow and the extent to which any such economies of scale are shared with funds and fund shareholders. The Trustees noted the breakpoint in the management fee schedule. The Trustees recognize that economies of scale are difficult to identify and quantify, and that, among other factors that may be relevant, are the following: fee levels, expense subsidization, investment by PIM in research and analytical capabilities and PIM's commitment and resource allocation to the Fund. The Trustees noted that profitability also may be an indicator of the availability of any economies of scale, although profitability may vary for other reasons including reductions in expenses. The Trustees concluded that economies of scale, if any, were being appropriately shared with the Funds. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 55 Other Benefits The Trustees considered the other benefits to PIM from its relationship with the Fund. The Trustees considered the character and amount of fees paid by the Fund, other than under the investment advisory agreement, for services provided by PIM and its affiliates. The Trustees further considered the revenues and profitability of PIM's businesses other than the fund business. Pioneer is the principal U.S. asset management business of Pioneer Global Asset Management, the worldwide asset management business of UniCredit Group, which manages over $150 billion in assets (including the Funds). Pioneer and the Funds receive reciprocal intangible benefits from the relationship, including mutual brand recognition and, for the Funds, direct and indirect access to the resources of a large global asset manager. The Trustees concluded that any such benefits received by Pioneer as a result of its relationship with the Funds were reasonable and their consideration of the advisory agreement between the Fund and PIM and the fees thereunder were unaffected by Pioneer's possible receipt of any such intangible benefits. Conclusion After consideration of the factors described above as well as other factors, the Trustees, including all of the Independent Trustees, concluded that the investment advisory agreement between PIM and the Fund, including the fees payable thereunder, was fair and reasonable and voted to approve the proposed renewal of the investment advisory agreement for the Fund. 56 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 Trustees, Officers and Service Providers Trustees Advisory Trustee Thomas J. Perna, Chairman Lorraine H. Monchak* David R. Bock Benjamin M. Friedman Officers Margaret B.W. Graham Lisa M. Jones, President and Chief Marguerite A. Piret Executive Officer Fred J. Ricciardi Mark E. Bradley, Treasurer and Kenneth J. Taubes Chief Financial Officer Christopher J. Kelley, Secretary and Chief Legal Officer Investment Adviser and Administrator Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Pioneer Investment Management Shareholder Services, Inc. Proxy Voting Policies and Procedures of the Fund are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to shareowners at us.pioneerinvestments.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. * Ms. Monchak is a non-voting Advisory Trustee. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 57 This page for your notes. 58 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 This page for your notes. Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 59 This page for your notes. 60 Pioneer Long/Short Global Bond Fund | Semiannual Report | 2/28/15 How to Contact Pioneer We are pleased to offer a variety of convenient ways for you to contact us for assistance or information. Call us for: -------------------------------------------------------------------------------- Account Information, including existing accounts, new accounts, prospectuses, applications and service forms 1-800-225-6292 FactFone(SM) for automated fund yields, prices, account information and transactions 1-800-225-4321 Retirement plans information 1-800-622-0176 Write to us: -------------------------------------------------------------------------------- PIMSS, Inc. P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address ask.pioneer@pioneerinvestments.com (for general questions about Pioneer only) Visit our web site: us.pioneerinvestments.com This report must be preceded or accompanied by a prospectus. The Fund files a complete schedule of investments with the Securities and Exchange Commission for the first and third quarters for each fiscal year on Form N-Q. Shareholders may view the filed Form N-Q by visiting the Commission's web site at www.sec.gov. The filed form may also be viewed and copied at the Commission's Public Reference Room in Washington, DC. Information regarding the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 us.pioneerinvestments.com Securities offered through Pioneer Funds Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2015 Pioneer Investments 27667-01-0415 Pioneer Long/Short Opportunistic Credit Fund -------------------------------------------------------------------------------- Semiannual Report | February 28, 2015 -------------------------------------------------------------------------------- Ticker Symbols: Class A LRCAX Class C LRCCX Class Y LRCYX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents President's Letter 2 Portfolio Management Discussion 4 Portfolio Summary 10 Prices and Distributions 11 Performance Update 12 Comparing Ongoing Fund Expenses 15 Schedule of Investments 17 Financial Statements 30 Notes to Financial Statements 37 Approval of Investment Advisory Agreement 51 Trustees, Officers and Service Providers 56 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 1 President's Letter Dear Shareowner, Today's market environment presents numerous opportunities as well as challenges for investors. A disparate global economic landscape has formed, with the U.S. facing prospects for continued growth, while questions abound regarding the outlook for other regions. Employment, household income, and corporate profits have been rising in the U.S. and inflation pressures remain low. However, many countries across Europe as well as Japan face muted growth. In addition, a variety of factors have clouded the outlook for countries such as Russia and Brazil and China's investment-driven economy continues to slow. Monetary policies of major central banks are diverging, reflecting different economic conditions. With the U.S. economy no longer in need of extraordinary stimulus, the Federal Reserve Board may be closer to raising short-term interest rates. Conversely, the European Central Bank and the Bank of Japan are likely to be adding, not removing, stimulus. While we anticipate continued growth for the U.S., the outlook is far from certain, nor is the outlook for other regions necessarily dire. It remains to be seen how weakness outside the U.S. will affect global growth and whether easing monetary policies in other regions will spur an economic recovery. While these economic conditions may lead to increasing volatility in 2015, we believe the opportunity for investors to earn attractive returns will persist. However, in an environment where interest rates remain low and equity valuations have been buoyed by an extended bull market, we believe it is imperative investors adhere to a disciplined investment approach that is consistent with one's goals and objectives, being mindful of the tradeoff between risk and return. Since 1928 Pioneer's investment professionals have been focused on identifying and capitalizing on investment opportunities that present themselves in a variety of ever changing market conditions, including those we face today. We seek returns consistent with our strategies' stated style and 2 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 objectives and consistent with our shareholders' expectations, regardless of market conditions. We believe our shareowners benefit from the experience and tenure of our investment teams, the insights generated from extensive research resources and a commitment to prudent risk management that seeks to mitigate downside and preserve returns over time. We encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short- and long-term goals, and to implement such a plan in a disciplined manner, as we do when deploying strategies on behalf of our shareowners. We greatly appreciate your trust in us in the past and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones President and CEO Pioneer Investment Management USA, Inc. Any information in this shareowner report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. These statements should not be relied upon for any other purposes. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 3 Portfolio Management Discussion | 2/28/15 In the following interview, portfolio managers Thomas Swaney and Benjamin Gord discuss the factors that influenced Pioneer Long/Short Opportunistic Credit Fund's performance during the six-month period ended February 28, 2015, as well as their investment approach in managing the Fund. Mr. Swaney, Head of Alternative Fixed Income, U.S., a senior vice president, and a portfolio manager at Pioneer (lead portfolio manager of the Fund since 2013), and Mr. Gord, a vice president and a portfolio manager at Pioneer, are responsible for the day-to-day management of the Fund. Q How did the Fund perform during the six-month period ended February 28, 2015? A Pioneer Long/Short Opportunistic Credit Fund's Class A shares returned 1.83% at net asset value during the six-month period ended February 28, 2015, while the Fund's benchmark, the Bank of America Merrill Lynch (BofA ML) 3-Month U.S. Treasury-Bill Index, returned 0.01%. During the same period, the average return of the 230 mutual funds in Lipper's Alternative Credit Focus Funds category was -0.65%, and the average return of the 427 mutual funds in Morningstar's Non-Traditional Bond Funds category was -0.25%. Q Can you provide an overview of the Fund's investment approach? A The big picture is that we seek to have the Fund produce an average annual return that is greater than the return on 3-month Treasury bills, on an annualized basis, with volatility lower than one would experience in the broad equity market. In pursuing this goal, we seek to have the Fund provide positive returns over most trailing 12-month periods and to minimize the extent of any negative returns, regardless of market conditions. Obviously, if we are going to be successful in achieving our objective, the Fund's returns cannot be overly dependent on the direction of one or more financial asset categories. In seeking positive returns regardless of market conditions, we utilize two distinct strategies. One strategy is "directional," in that we need to be correct about whether a particular asset price is poised to go up or down. However, we seek to have the Fund's performance benefit from both positive and negative returns. This means that at times we invest the portfolio in some asset categories within the broad bond market by taking long positions, while speculating against other asset classes by taking short positions. 4 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 The other part of the portfolio utilizes uncorrelated, relative-value-based trading strategies, in which we do not have to take a stance on whether an individual market is going to rise or fall overall. Instead, we need to identify either a segment or security within a market that we believe will outperform versus another market segment or security. We execute these portfolio investment strategies across several different global financial markets and many different asset classes. We will seek to "pair" positions, meaning that the Fund will have a long position in one segment/security of a particular market, and a short position in another segment/security. We believe this strategy can allow the Fund to benefit from favorable relative performance, regardless of the overall direction of that market. Most importantly, we closely track the risks we have assumed in both portions of the portfolio and operate within an overall "risk budget," which is based on our goal of largely avoiding negative returns over a 12-month period. Q Can you review the principal portfolio investment strategies you implemented during the six-month period ended February 28, 2015? How did those strategies help or hinder the Fund's performance? A Let's look first at the relative value side of the portfolio, which seeks to realize gains regardless of market direction. One relative value strategy we used during the period was to seek to take advantage of the slope of the yield curve for individual corporate bond issuers. For instance, the long-term debt of companies with weaker balance sheets may react more strongly to changes in business conditions than the short-term debt. Within this strategy, a curve trade in retailer Radio Shack added to the Fund's performance, while a curve trade in gaming company Caesars Entertainment detracted. On the whole, the Fund's long/short curve trading strategies added notably to returns over the six-month period. Another strategy that added value to the Fund's returns during the period was our utilization of credit index tranches. Such investments allow us to efficiently accentuate the portfolio's exposure to index constituents that tend to be more susceptible to overall changes in business conditions, while shorting the overall market index. We also implemented pair trades, under which we took opposing long and short positions in two issuers within the same industry. We do this when we believe that the differing company fundamentals are not reflected in their relative valuations. Our pair trades were, on balance, modestly successful for the Fund during the six-month period. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 5 During the period, we also utilized the strategy of arbitraging a company's capital structure in anticipation of a divergence in performance. (Arbitrage is defined as a trade that profits by exploiting price differences of identical or similar financial instruments, on different markets or in different forms, due to temporary inefficiencies in the markets; this provides a mechanism to ensure prices do not deviate substantially from fair value for long periods of time. Part of the transaction could fail, and a sudden price movement may make it impossible to close the trade at a profit.) An example of arbitraging would be our buying the issuer's junior subordinated bonds and selling short the issuer's senior secured bonds. Our various capital arbitrage positions had mixed results for the Fund's performance during the period. On the directional side of the portfolio, we will take long or short positions in fixed-income markets and securities, based on our performance outlook, while hedging out interest-rate risk. During the period, the Fund's directional trading was challenged as market volatility spiked in late 2014. We were cautious with respect to investments in credit-oriented markets, in particular high-yield corporates, given the tightening in spreads that has occurred (credit spreads are commonly defined as the differences in yield between Treasuries and other types of fixed-income securities with similar maturities). We did successfully take portfolio positions in corporate bonds, including high-yield issues, on weakness at various points during the six-month period. The Fund's performance benefited from long positions taken in both commercial mortgage-backed (CMBS) and residential mortgage- backed securities (RMBS), as the credit profiles of existing borrowers improved along with the economic backdrop. Finally, we took various thematic long/short positions, including those based on U.S. dollar strength, weakness in infrastructure metal commodities, a rebound in crude oil prices and a rise in short-term interest rates. Under this approach, we will take opposite positions in two companies that we believe could be affected differently by their exposures to a particular theme (for instance, dollar strength). Our thematic long/short trading strategies, on balance, contributed positively to the Fund's returns during the period. In this vein, a long position in Hertz did not work opposite a short position in United Rentals. 6 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Q Could you discuss the use of derivative positions in the portfolio during the six-month period ended February 28, 2015, and their effect on the Fund's performance? A Virtually all of the portfolio's strategies are implemented via derivatives, and so the Fund's performance will always be affected by derivatives trading. For instance, when we want to short U.S. Treasuries, we will do so mainly by selling Treasury futures or sometimes by buying "put" options. Similarly, in the currency sleeve of the Fund, we use forwards and options to gain the desired exposures. With respect to credit markets, where there are no liquid futures contracts, we may use credit default swaps to manage the portfolio's exposures. In other situations, we utilize instruments such as interest-rate or inflation swaps to implement our strategies. Q What is your assessment of the current macroeconomic climate and the opportunities it may present? A In general, asset valuations appear to be ahead of economic growth trends, supported by zero-interest-rate policies from central banks around the world. In this vein, credit spreads are tight by historical standards. At the same time, corporate balance sheets are in good shape. Given this backdrop, we see relatively few directional opportunities among fixed-income markets. The CMBS and more credit-sensitive areas of the MBS sector appear to be more attractively valued than corporate bonds. The Fed's extraordinarily supportive policies have helped to underpin conditions in recent years. While the beginning of Fed policy tightening is anticipated to a large degree by the market, volatility and performance dispersion could still increase as the speculation about increased rates moves out of the realm of benign prospect and becomes a reality. Slowing economic growth in China and the impact of oil prices on different countries and sectors will also be closely monitored by investors. On balance, we expect an environment of heightened volatility across fixed-income markets that could well provide opportunities for the Fund's relative-value strategies. We plan to focus on identifying investment opportunities that emerge as market reactions overshoot developments on various macroeconomic fronts. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 7 Please refer to the Schedule of Investments on pages 17-29 for a full listing of Fund securities. All investments are subject to risk, including the possible loss of principal. The portfolio may invest in derivative securities, such as options, futures, inverse floating-rate obligations, and swaps, among others, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on the performance of the portfolio. The Fund may take short positions, which involves leverage of its assets and presents additional risks. The Fund may invest in credit default swaps, which may in some cases be illiquid, and they increase credit risk since the Fund has exposure to both the issuer of the referenced obligation and the counterparty to the credit default swap. The Fund employs leverage, which increases the volatility of investment returns and subjects the Fund to magnified losses. Investments in fixed-income securities involve interest rate, credit, inflation, and reinvestment risks. When interest rates rise, the prices of fixed-income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed-income securities in the Fund will generally rise. Investments in the Fund are subject to possible loss due to the financial failure of issuers of underlying securities and their inability to meet their debt obligations. Investments in high-yield or lower-rated securities are subject to greater-than- average price volatility, illiquidity and possibility of default. Prepayment risk is the chance that an issuer may exercise its right to prepay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income and lose the opportunity for additional price appreciation. The securities issued by U.S. Government sponsored entities (e.g., FNMA, Freddie Mac) are neither guaranteed nor issued by the U.S. Government. The portfolio may invest in mortgage-backed securities, which during times of fluctuating interest rates may increase or decrease more than other fixed-income securities. Mortgage-backed securities are also subject to pre-payments. 8 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates, economic, and political conditions. The Fund may invest in event-linked bonds and other insurance-linked securities. The return of principal and the payment of interest on insurance-linked securities are contingent on the non-occurrence of a pre-defined "trigger" event, such as a hurricane or an earthquake of a specific magnitude. The Fund may invest in floating-rate loans; the value of collateral, if any, securing a floating-rate loan can decline or may be insufficient to meet the issuer's obligations or may be difficult to liquidate. The Fund is subject to currency risk, meaning that the Fund could experience losses based on changes in the exchange rate between non-U.S. currencies and the U.S. dollar. The Fund is non-diversified, which means that it can invest a large percentage of its assets in the securities of any one or more issuers. This increases the Fund's potential risk exposure. These risks may increase share price volatility. There is no assurance that these and other strategies used by the Fund will be successful. Please see the prospectus for a more complete discussion of the Fund's risks. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Pioneer Investments for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is no guarantee of future results. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 9 Portfolio Summary | 2/28/15 Portfolio Diversification -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] U.S. Government Securities 36.9% Collateralized Mortgage Obligations 32.1% Temporary Cash Investments 14.3% Mutual Fund 4.2% Senior Secured Loans 3.9% International Corporate Bonds 3.1% Convertible Preferred Stocks 1.4% Asset Backed Securities 1.2% Convertible Corporate Bonds 1.0% U.S. Preferred Stocks 1.0% U.S. Corporate Bonds 0.9% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)* 1. U.S. Treasury Bills, 3/5/15 8.90% ---------------------------------------------------------------------------------------- 2. U.S. Treasury Note, Floating Rate Note, 7/31/16 6.32 ---------------------------------------------------------------------------------------- 3. U.S. Treasury Bills, 3/26/15 5.74 ---------------------------------------------------------------------------------------- 4. U.S. Treasury Bills, 4/9/15 5.74 ---------------------------------------------------------------------------------------- 5. U.S. Treasury Bills, 4/16/15 5.74 ---------------------------------------------------------------------------------------- 6. U.S. Treasury Bills, 4/2/15 5.74 ---------------------------------------------------------------------------------------- 7. DoubleLine Opportunistic Credit Fund 4.92 ---------------------------------------------------------------------------------------- 8. JP Morgan Mortgage Trust 2014-1 REMICS, Floating Rate Note, 1/25/44 (144A) 4.25 ---------------------------------------------------------------------------------------- 9. Sequoia Mortgage Trust 2013-7, Floating Rate Note, 6/25/43 3.96 ---------------------------------------------------------------------------------------- 10. U.S. Treasury Bills, 4/23/15 3.89 ---------------------------------------------------------------------------------------- * This list excludes temporary cash investments and derivative instruments. The portfolio is actively managed, and current holdings may be different. The holdings listed should not be considered recommendations to buy or sell any security listed. 10 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Prices and Distributions | 2/28/15 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 2/28/15 8/31/14 -------------------------------------------------------------------------------- A $9.96 $10.11 -------------------------------------------------------------------------------- C $9.93 $10.06 -------------------------------------------------------------------------------- Y $9.98 $10.13 -------------------------------------------------------------------------------- Distributions per Share: 9/1/14- 2/28/15 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.3284 $ -- $ -- -------------------------------------------------------------------------------- C $0.2784 $ -- $ -- -------------------------------------------------------------------------------- Y $0.3456 $ -- $ -- -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index is an unmanaged market index of U.S. Treasury securities maturing in 90 days, that assumes reinvestment of all income. Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. It is not possible to invest directly in an index. The index defined here pertains to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts appearing on pages 12-14. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 11 Performance Update | 2/28/15 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer Long/Short Opportunistic Credit Fund at public offering price during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Net Public BofA ML Asset Offering 3-Month Value Price U.S. Treasury Period (NAV) (POP) Bill Index -------------------------------------------------------------------------------- Life-of-Class (12/30/13) 2.53% -1.44% 0.03% 1 Year 2.95 -1.67 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 3.03% 1.88% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Long/Short BofA ML 3-month Opportunistic Credit Fund US Treasury Bill Index 12/31/2013 $9,550 $10,000 2/28/2014 $9,551 $10,001 2/28/2015 $9,833 $10,004 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. POP returns reflect deduction of maximum 4.50% sales charge. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class A shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 12 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Performance Update | 2/28/15 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C Shares of Pioneer Long/Short Opportunistic Credit Fund during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- BofA ML 3-Month If If U.S. Treasury Period Held Redeemed Bill Index -------------------------------------------------------------------------------- Life-of-Class (12/30/13) 1.83% 1.83% 0.03% 1 Year 2.24 2.24 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 3.76% 2.63% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Long/Short BofA ML 3-month Opportunistic Credit Fund US Treasury Bill Index 12/31/2013 $10,000 $10,000 2/28/2014 $ 9,990 $10,001 2/28/2015 $10,214 $10,004 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class C shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 13 Performance Update | 2/28/15 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer Long/Short Opportunistic Credit Fund during the periods shown, compared to that of the Bank of America Merrill Lynch (BofA ML) 3-month US Treasury Bill Index. Average Annual Total Returns (As of February 28, 2015) -------------------------------------------------------------------------------- Net BofA ML Asset 3-Month Value U.S. Treasury Period (NAV) Bill Index -------------------------------------------------------------------------------- Life-of-Class (12/30/13) 2.85% 0.03% 1 Year 3.23 0.03 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 31, 2014) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.76% 1.63% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer Long/Short BofA ML 3-month Opportunistic Credit Fund US Treasury Bill Index 12/31/2013 $5,000,000 $5,000,000 2/28/2014 $5,005,000 $5,000,363 2/28/2015 $5,166,514 $5,001,901 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through January 1, 2016, for Class Y shares. There can be no assurance that Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 14 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Comparing Ongoing Fund Expenses As a shareowner in the Fund, you incur two types of costs: (1) ongoing costs, including management fees, distribution and/or service (12b-1) fees, and other Fund expenses; and (2) transaction costs, including sales charges (loads) on purchase payments. This example is intended to help you understand your ongoing expenses (in dollars) of investing in the Fund and to compare these costs with the ongoing costs of investing in other mutual funds. The example is based on an investment of $1,000 at the beginning of the Fund's latest six-month period and held throughout the six months. Using the Tables -------------------------------------------------------------------------------- Actual Expenses The first table below provides information about actual account values and actual expenses. You may use the information in this table, together with the amount you invested, to estimate the expenses that you paid over the period as follows: (1) Divide your account value by $1,000 Example: an $8,600 account value (divided by) $1,000 = 8.6 (2) Multiply the result in (1) above by the corresponding share class's number in the third row under the heading entitled "Expenses Paid During Period" to estimate the expenses you paid on your account during this period. Expenses Paid on a $1,000 Investment in Pioneer Long/Short Opportunistic Credit Fund Based on actual returns from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account Value on 9/1/14 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,018.30 $1,015.30 $1,020.00 on 2/28/15 -------------------------------------------------------------------------------- Expenses Paid During Period* $ 8.86 $ 12.59 $ 7.61 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio plus the expense ratio of the underlying funds. These combined totals were 1.77%, 2.52%, and 1.52% for Class A, Class C and Class Y shares respectively. These combined ratios were multiplied by the average account value over the period, and then multiplied by 181/365 (to reflect the one-half year period). Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 15 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer Long/Short Opportunistic Credit Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from September 1, 2014, through February 28, 2015. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account Value on 9/1/14 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,016.02 $1,012.30 $1,017.26 on 2/28/15 -------------------------------------------------------------------------------- Expenses Paid During Period* $ 8.85 $ 12.57 $ 7.60 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio plus the expense ratio of the underlying funds. These combined totals were 1.77%, 2.52%, and 1.52% for Class A, Class C and Class Y shares respectively. These combined ratios were multiplied by the average account value over the period, and then multiplied by 181/365 (to reflect the one-half year period). 16 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Schedule of Investments | 2/28/15 (unaudited) --------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value --------------------------------------------------------------------------------------------------------- CONVERTIBLE CORPORATE BONDS -- 1.0% CAPITAL GOODS -- 1.0% Construction & Farm Machinery & Heavy Trucks -- 1.0% 185,000 Trinity Industries, Inc., 3.875%, 6/1/36 $ 275,766 -------------- Total Capital Goods $ 275,766 --------------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE CORPORATE BONDS (Cost $276,280) $ 275,766 --------------------------------------------------------------------------------------------------------- PREFERRED STOCKS -- 1.0% BANKS -- 1.0% Diversified Banks -- 1.0% 320,000 1.20 JPMorgan Chase Capital XXI, Floating Rate Note, 1/15/87 $ 264,800 -------------- Total Banks $ 264,800 --------------------------------------------------------------------------------------------------------- TOTAL PREFERRED STOCKS (Cost $260,276) $ 264,800 --------------------------------------------------------------------------------------------------------- CONVERTIBLE PREFERRED STOCKS -- 0.9% BANKS -- 0.9% Diversified Banks -- 0.9% 200 Bank of America Corp., 7.25% (Perpetual) $ 234,000 -------------- Total Banks $ 234,000 --------------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE PREFERRED STOCKS (Cost $229,386) $ 234,000 --------------------------------------------------------------------------------------------------------- ASSET BACKED SECURITIES -- 1.2% BANKS -- 0.9% Thrifts & Mortgage Finance -- 0.9% 61,690 CAM Mortgage Trust 2014-1, 5.5%, 12/15/53 (Step) (144A) $ 61,750 41,669 1.47 First Franklin Mortgage Loan Trust 2003-FFC, Floating Rate Note, 11/25/32 39,701 42,911 Icon Brand Holdings LLC, 4.229%, 1/26/43 (144A) 42,785 32,574 3.17 Irwin Whole Loan Home Equity Trust 2003-C, Floating Rate Note, 6/25/28 32,564 58,207 5.47 New Century Home Equity Loan Trust, Floating Rate Note, 8/25/34 60,130 -------------- $ 236,930 -------------- Total Banks $ 236,930 --------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.3% Other Diversified Financial Services -- 0.3% 90,000 TAL Advantage V LLC, 4.1%, 2/22/39 $ 89,370 -------------- Total Diversified Financials $ 89,370 --------------------------------------------------------------------------------------------------------- TOTAL ASSET BACKED SECURITIES (Cost $326,886) $ 326,300 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 17 Schedule of Investments | 2/28/15 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value --------------------------------------------------------------------------------------------------------- COLLATERALIZED MORTGAGE OBLIGATIONS -- 31.5% BANKS -- 31.5% Thrifts & Mortgage Finance -- 31.5% 300,000 1.13 Alternative Loan Trust 2005-J4, Floating Rate Note, 7/25/35 $ 269,070 180,000 2.70 BAMLL Commercial Mortgage Securities Trust 2014-INLD, Floating Rate Note, 12/17/29 (144A) 163,026 250,000 5.99 Banc of America Commercial Mortgage Trust 2007-5, Floating Rate Note, 2/10/51 254,299 47,858 1.17 Bayview Commercial Asset Trust 2004-3, Floating Rate Note, 1/25/35 (144A) 44,062 150,000 Bear Stearns Commercial Mortgage Securities Trust 2006-PWR14, 5.273%, 12/11/38 152,605 152,000 4.45 CAM Mortgage Trust 2014-2, Floating Rate Note, 5/15/48 (144A) 152,760 120,000 2.76 Carefree Portfolio Trust 2014-CARE, Floating Rate Note, 11/15/29 (144A) 110,828 3,777 Citicorp Mortgage Securities REMIC Pass-Through Certificates Trust Series 2005-3, 5.5%, 4/25/35 3,778 155,000 5.77 COBALT CMBS Commercial Mortgage Trust 2007-C3, Floating Rate Note, 5/15/46 146,703 47,000 5.77 COBALT CMBS Commercial Mortgage Trust 2007-C3, Floating Rate Note, 5/15/46 41,596 175,000 5.57 COBALT Commercial Mortgage Trust 2007-C2, Floating Rate Note, 4/15/47 (144A) 178,474 175,000 COMM 2006-C8 Mortgage Trust, 5.377%, 12/10/46 177,479 175,000 5.23 Credit Suisse First Boston Mortgage Securities Corp., Floating Rate Note, 12/17/40 176,124 300,000 5.10 Credit Suisse First Boston Mortgage Securities Corp., Floating Rate Note, 8/15/38 274,736 175,000 3.27 CSMC Trust 2014-SURF, Floating Rate Note, 2/15/29 (144A) 174,778 100,000 4.92 EQTY 2014-MZ Mezzanine Trust, Floating Rate Note, 5/9/19 (144A) 98,279 100,000 GAHR Commercial Mortgage Trust 2015-NRF, 3.38216%, 12/15/19 (144A) 93,763 250,000 5.55 GS Mortgage Securities Trust 2006-GG6, Floating Rate Note, 4/10/38 250,194 200,000 JP Morgan Chase Commercial Mortgage Securities Trust 2006-CIBC16, 5.623%, 5/12/45 204,270 125,000 3.51 JP Morgan Chase Commercial Mortgage Securities Trust 2013-FL3, Floating Rate Note, 4/17/28 (144A) 125,001 929,518 3.50 JP Morgan Mortgage Trust 2014-1 REMICS, Floating Rate Note, 1/25/44 (144A) 954,994 813,323 3.97 JP Morgan Mortgage Trust 2014-1 REMICS, Floating Rate Note, 1/25/44 (144A) 853,291 125,000 5.27 LB-UBS Commercial Mortgage Trust 2005-C2, Floating Rate Note, 4/15/40 125,242 The accompanying notes are an integral part of these financial statements. 18 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 --------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value --------------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 187,500 5.28 LB-UBS Commercial Mortgage Trust 2006-C1, Floating Rate Note, 2/15/41 $ 190,228 260,000 5.27 Merrill Lynch Mortgage Trust 2005-CKI1, Floating Rate Note, 11/12/37 260,482 70,000 5.48 ML-CFC Commercial Mortgage Trust 2006-3, Floating Rate Note, 7/12/46 71,435 6,239 0.95 Nomura Asset Acceptance Corp Alternative Loan Trust Series 2004-AR2, Floating Rate Note, 10/25/34 6,215 695,133 3.50 Sequoia Mortgage Trust 2012-3, Floating Rate Note, 7/25/42 709,823 720,252 3.00 Sequoia Mortgage Trust 2013-6, Floating Rate Note, 5/26/43 710,292 901,084 3.00 Sequoia Mortgage Trust 2013-7, Floating Rate Note, 6/25/43 888,624 250,000 5.36 Wachovia Bank Commercial Mortgage Trust Series 2005-C22, Floating Rate Note, 12/15/44 253,348 125,000 5.95 Wachovia Bank Commercial Mortgage Trust Series 2007-C34, Floating Rate Note, 5/15/46 129,779 200,000 3.67 Wells Fargo Commercial Mortgage Trust 2014-TISH, Floating Rate Note, 1/15/27 (144A) 197,268 -------------- $ 8,442,846 -------------- Total Banks $ 8,442,846 --------------------------------------------------------------------------------------------------------- TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $8,253,325) $ 8,442,846 --------------------------------------------------------------------------------------------------------- CORPORATE BONDS -- 4.0% DIVERSIFIED FINANCIALS -- 0.2% Other Diversified Financial Services -- 0.2% INR3,700,000 European Bank for Reconstruction & Development, 6.0%, 3/3/16 $ 59,784 -------------- Total Diversified Financials $ 59,784 --------------------------------------------------------------------------------------------------------- INSURANCE -- 3.8% Reinsurance -- 3.8% 250,000 6.87 Caelus Re, Ltd., Floating Rate Note, 4/7/17 (Cat Bond) (144A) $ 260,900 250,000 4.15 Kilimanjaro Re, Ltd., Floating Rate Note, 4/30/18 (Cat Bond) (144A) 251,750 250,000 8.51 Mythen Re, Ltd., Floating Rate Note, 5/7/15 (Cat Bond) (144A) 252,575 250,000 4.52 Residential Reinsurance 2012, Ltd., Floating Rate Note, 12/6/16 (Cat Bond) (144A) 256,200 -------------- $ 1,021,425 -------------- Total Insurance $ 1,021,425 --------------------------------------------------------------------------------------------------------- TOTAL CORPORATE BONDS (Cost $1,076,470) $ 1,081,209 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 19 Schedule of Investments | 2/28/15 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value --------------------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- 36.3% 1,290,000 U.S. Treasury Bills, 3/26/15 (c) $ 1,289,978 2,000,000 U.S. Treasury Bills, 3/5/15 (c) 1,999,997 1,290,000 U.S. Treasury Bills, 4/16/15 (c) 1,289,972 1,290,000 U.S. Treasury Bills, 4/2/15 (c) 1,289,972 875,000 U.S. Treasury Bills, 4/23/15 (c) 874,975 1,290,000 U.S. Treasury Bills, 4/9/15 (c) 1,289,977 125,000 0.07 U.S. Treasury Note, Floating Rate Note, 1/31/16 124,997 125,000 0.09 U.S. Treasury Note, Floating Rate Note, 4/30/16 125,013 1,420,000 0.09 U.S. Treasury Note, Floating Rate Note, 7/31/16 1,419,922 --------------------------------------------------------------------------------------------------------- TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS (Cost $9,705,420) $ 9,704,803 --------------------------------------------------------------------------------------------------------- SENIOR FLOATING RATE LOAN INTERESTS -- 3.9%** ENERGY -- 1.2% Oil & Gas Drilling -- 0.2% 50,020 7.50 Jonah Energy LLC, Term Loan (Second Lien), 5/8/21 $ 44,518 --------------------------------------------------------------------------------------------------------- Oil & Gas Equipment & Services -- 0.5% 98,998 3.88 Fieldwood Energy LLC, Closing Date Loan, 9/25/18 $ 94,976 49,500 5.75 FR Dixie Acquisition Corp., Term Loan, 1/23/21 41,332 -------------- $ 136,308 --------------------------------------------------------------------------------------------------------- Integrated Oil & Gas -- 0.5% 50,000 7.50 Chief Exploration & Development LLC, Term Loan, 6.50%, 5/16/21 $ 45,906 99,000 4.00 Seadrill Operating LP Initial Term Loan, 2/14/21 , 80,349 -------------- $ 126,255 -------------- Total Energy $ 307,081 --------------------------------------------------------------------------------------------------------- MATERIALS -- 0.7% Commodity Chemicals -- 0.1% 29,700 5.00 Nexeo Solutions LLC, Term Loan B3, 9/9/17 $ 29,069 --------------------------------------------------------------------------------------------------------- Diversified Chemicals -- 0.2% 49,485 5.00 Univar, Term B Loan, 2/14/17 $ 49,238 --------------------------------------------------------------------------------------------------------- Paper Packaging -- 0.3% 25,000 8.00 Caraustar Industries, Inc., Incremental Term Loan, 6.75%, 5/1/19 $ 24,500 49,500 5.25 Coveris Holdings SA, USD Term Loan, 4/14/19 49,778 -------------- $ 74,278 --------------------------------------------------------------------------------------------------------- Steel -- 0.1% 34,825 4.50 Atkore International, Inc., Term Loan (First Lien), 3/27/21 $ 33,780 -------------- Total Materials $ 186,365 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 20 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 --------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value --------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.3% Aerospace & Defense -- 0.3% 33,770 6.25 DynCorp International, Inc., Term Loan, 7/7/16 $ 33,616 24,937 6.50 TASC, Inc., First Lien Term Loan, 2/28/17 25,228 24,375 3.25 Wesco Aircraft Hardare Corp., Tranche B Term Loan (First Lien), 2/24/21 24,030 -------------- $ 82,874 -------------- Total Capital Goods $ 82,874 --------------------------------------------------------------------------------------------------------- TRANSPORTATION -- 0.4% Trucking -- 0.4% 49,750 5.50 Aegis Toxicology Corp., Tranche B Term Loan (First Lien), 2/20/21 $ 49,999 49,500 8.25 YRC Worldwide, Inc., Initial Term Loan, 2/12/19 49,252 -------------- $ 99,251 -------------- Total Transportation $ 99,251 --------------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 0.1% Auto Parts & Equipment -- 0.1% 29,850 4.00 Cooper Standard Intermediate Holdco 2 LLC, Term Loan, 3/28/21 $ 29,742 -------------- Total Automobiles & Components $ 29,742 --------------------------------------------------------------------------------------------------------- MEDIA -- 0.2% Broadcasting -- 0.1% 23,485 3.00 CBS Outdoor Americas Capital llc, Tranche B Term Loan (First Lien), 1/15/21 $ 23,371 --------------------------------------------------------------------------------------------------------- Publishing -- 0.1% 25,000 7.00 Cengage Learning Acquisitions Inc, Term Loan, 3/6/20 $ 25,025 -------------- Total Media $ 48,396 --------------------------------------------------------------------------------------------------------- HOUSEHOLD & PERSONAL PRODUCTS -- 0.4% Personal Products -- 0.4% 75,000 7.75 Atrium Innovations, Inc., Tranche B Term Loan (Second Lien), 7/29/21 $ 69,562 35,640 4.00 Party City Holdings, Inc., 2014 Replacement Term Loan, 7/27/19 35,462 -------------- $ 105,024 -------------- Total Household & Personal Products $ 105,024 --------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.3% Other Diversified Financial Services -- 0.2% 34,738 4.50 Nord Anglia Education, Initial Term Loan, 3/31/21 $ 34,651 24,813 5.00 SBP Holdings, Ltd., Term Loan (First Lien), 3/24/21 21,773 -------------- $ 56,424 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 21 Schedule of Investments | 2/28/15 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Floating Principal Rate (b) Amount ($) (unaudited) Value --------------------------------------------------------------------------------------------------------- Consumer Finance -- 0.1% 34,738 4.00 Trans Union LLC, 2014 Replacement Term Loan, 4/9/21 $ 34,672 -------------- Total Diversified Financials $ 91,096 --------------------------------------------------------------------------------------------------------- Semiconductors & Semiconductor Equipment -- 0.1% Semiconductor Equipment -- 0.1% 35,552 3.50 Emtegris, Inc., Term Loan B, 3/25/21 $ 35,330 -------------- Total Semiconductors & Semiconductor Equipment $ 35,330 --------------------------------------------------------------------------------------------------------- UTILITIES -- 0.2% Electric Utilities -- 0.2% 45,125 4.75 Atlantic Power LP Term Loan, 2/20/21 , $ 45,350 -------------- Total Utilities $ 45,350 --------------------------------------------------------------------------------------------------------- TOTAL SENIOR FLOATING RATE LOAN INTERESTS (Cost $1,077,255) $ 1,030,509 --------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------- Shares --------------------------------------------------------------------------------------------------------- MUTUAL FUND -- 4.1% 42,851 DoubleLine Opportunistic Credit Fund $ 1,104,699 --------------------------------------------------------------------------------------------------------- TOTAL MUTUAL FUND (Cost $1,085,810) $ 1,104,699 --------------------------------------------------------------------------------------------------------- TEMPORARY CASH INVESTMENTS -- 14.1% Repurchase Agreements -- 14.1% 3,765,000 RBC Capital Markets LLC, 0.08%, dated 2/28/15, repurchase price of $3,765,000, plus accrued interest on 3/2/15, collateralized by the following: $16,350 Federal Home Loan Mortgage Corp., 2.699%, 11/1/44 $2,557,442 Federal National Mortgage Association (ARM), 2.335%, 9/1/39 $1,266,509 Federal National Mortgage Association, 3- 4%, 7/1/28- 2/1/45 $ 3,765,000 --------------------------------------------------------------------------------------------------------- TOTAL TEMPORARY CASH INVESTMENTS (Cost $3,765,000) $ 3,765,000 --------------------------------------------------------------------------------------------------------- TOTAL INVESTMENT IN SECURITIES -- 98.0% (Cost $26,056,108) (a) $ 26,229,932 --------------------------------------------------------------------------------------------------------- OTHER ASSETS & LIABILITIES -- 2.0% $ 533,446 --------------------------------------------------------------------------------------------------------- TOTAL NET ASSETS -- 100.0% $ 26,763,378 ========================================================================================================= The accompanying notes are an integral part of these financial statements. 22 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 (144A) Security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold normally to qualified institutional buyers in a transaction exempt from registration. At February 28, 2015, the value of these securities amounted to $4,272,484 or 16.0% of total net assets. (Cat Bond) Catastrophe bond is a high-yield debt instrument that is usually insurance linked and meant to raise money in case of a catastrophe. (Perpetual) Security with no stated maturity date. (Step) Bond issued with an initial coupon rate which converts to a higher rate at a later date. REMICS Real Estate Mortgage Investment Conduits. ** Senior floating rate loan interests in which the Fund invests generally pay interest at rates that are periodically redetermined by reference to a base lending rate plus a premium. These base lending rates are generally (i) the lending rate offered by one or more major European banks, such as LIBOR (London InterBank Offered Rate), (ii) the prime rate offered by one or more major United States banks, (iii) the certificate of deposit or (iv) other base lending rates used by commercial lenders. The rate shown is the coupon rate at period end. (a) At February 28, 2015, the net unrealized appreciation on investments based on cost for federal income tax purposes of $26,060,228 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $ 231,629 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (61,925) ----------- Net unrealized appreciation $ 169,704 =========== (b) Debt obligation with a variable interest rate. Rate shown is rate at end of period. (c) Security issued with a zero coupon. Income is earned through accretion of discount. NOTE: Principal amounts are denominated in U.S. Dollars unless otherwise noted: INR Indian Rupee Purchases and sales of securities (excluding temporary cash investments) for the six months ended February 28, 2015 aggregated $10,834,694 and $14,121,986, respectively. The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 23 Schedule of Investments | 2/28/15 (unaudited) (continued) CREDIT DEFAULT SWAP AGREEMENTS - BUY PROTECTION ---------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Expiration Paid Appreciation Principal ($) Counterparty Entity/Index Coupon Date (Received) (Depreciation) ---------------------------------------------------------------------------------------------------------- (250,000) Citibank NA JPMorgan Chase 1.00% 3/20/20 $ (3,780) $ (1,111) & Co. (1,210,300) Citibank NA Markit CDX North 5.00% 12/20/18 (239,639) 23,406 America High Yield Index (125,000) J.P. Morgan Bank of America 1.00% 3/20/20 (1,525) (794) Securities LLC Corp. (250,000) Morgan Radioshack Corp. 5.00% 6/20/17 123,750 82,288 Stanley & Co. International plc ---------------------------------------------------------------------------------------------------------- $ (121,194) $ 103,789 ========================================================================================================== CENTRALLY CLEARED CREDIT DEFAULT SWAP AGREEMENTS - BUY PROTECTION ----------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Expiration Paid Appreciation Principal ($) Counterparty Entity/Index Coupon Date (Received) (Depreciation) ----------------------------------------------------------------------------------------------------------- EUR(2,750,000) Intercontinental Markit iTraxx 5.00% 6/20/19 $ (401,922) $ (60,761) Exchange Europe Crossover Index (5,010,000) Chicago Markit CDX North 1.00% 12/20/19 (85,995) (13,043) Mercantile America Investment Exchange Grade Index (1,539,250) Chicago Markit CDX North 5.00% 12/20/16 (91,739) (2,835) Mercantile America High Exchange Yield Index ----------------------------------------------------------------------------------------------------------- $ (579,656) $ (76,639) =========================================================================================================== The accompanying notes are an integral part of these financial statements. 24 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 CREDIT DEFAULT SWAP AGREEMENTS - SELL PROTECTION --------------------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Credit Expiration Received Appreciation Principal($)(1) Counterparty Entity/Index Coupon Rating(2) Date (Paid) (Depreciation) --------------------------------------------------------------------------------------------------------------------- EUR 250,000 Barclays Norske 5.00% CCC- 12/20/15 $ (52,243) $ 43,776 Bank Plc Skogindustrier ASA 655,000 Citibank NA Markit CDX North 5.00% BBB+ 12/20/17 (32,096) 7,050 America Investment Grade Index EUR 625,000 Citibank NA Markit iTraxx 5.00% BB 6/20/15 (8,589) 17,894 Europe Index EUR 2,500,000 Citibank NA Markit iTraxx 1.00% BBB+ 6/20/19 (216,544) 137,217 Europe Index 250,000 Citibank NA MBIA, Inc. 5.00% A- 3/20/15 (625) 2,609 250,000 Citibank NA Parker Drilling Co. 5.00% B+ 3/20/20 (17,500) 2,440 250,000 Citibank NA Sears Roebuck 5.00% CCC+ 3/20/15 (16,250) 16,146 Acceptance Corp. 250,000 Citibank NA Transocean Inc. 1.00% BBB- 3/20/20 (57,066) (35) 250,000 Citibank NA Travelport LLC 5.00% NR 3/20/15 -- 2,770 EUR 250,000 Goldman Sach Altice Finco SA 5.00% B- 3/20/20 (5,258) 30,451 International 300,000 Goldman Sach Claire's 5.00% CCC 12/20/15 (12,000) (25,905) International Stores Inc. 260,000 Goldman Sach Hertz Corp. 5.00% B 3/20/20 6,096 16,588 International 525,000 Goldman Sach iHeartMedia 5.00% CCC- 12/20/15 (14,437) 19,180 International Inc. 525,000 Goldman Sach Sears Roebuck 5.00% CCC+ 12/20/15 (21,000) 10,281 International Acceptance Corp. 300,000 Goldman Sach Toys R Us Inc. 5.00% CCC 12/20/15 (10,500) 4,750 International EUR 400,000 JP Morgan Abengoa SA 5.00% B 12/20/15 (31,981) 31,757 Chase Bank NA EUR 400,000 JP Morgan Abengoa SA 5.00% B 3/20/15 (117,167) 62,127 Chase Bank NA EUR 250,000 JP Morgan Norske 5.00% CCC- 3/20/15 (20,417) 21,017 Chase Bank Skogindustrier NA ASA EUR 250,000 JP Morgan Norske 5.00% CCC- 12/20/15 (50,506) 42,038 Chase Bank Skogindustrier NA ASA 500,000 JP Morgan Sears Roebuck 1.00% CCC+ 3/20/15 (25,041) 339 Chase Bank Acceptance Corp. NA The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 25 Schedule of Investments | 2/28/15 (unaudited) (continued) CREDIT DEFAULT SWAP AGREEMENTS - SELL PROTECTION -------------------------------------------------------------------------------------------------------------------- Net Premiums Unrealized Notional Obligation Credit Expiration Received Appreciation Principal ($)(1) Counterparty Entity/Index Coupon Rating(2) Date (Paid) (Depreciation) -------------------------------------------------------------------------------------------------------------------- 250,000 Morgan Apache Corp. 1.00% A- 3/20/20 $ (14,039) $ 12,085 Stanley & Co International plc 250,000 Morgan Canadian 1.00% BBB+ 3/20/20 (5,264) 101 Stanley & Co Natural International Resources Ltd. plc 500,000 Morgan Diamond 1.00% A- 3/20/20 (63,792) 7,436 Stanley & Co Offshore Drill International plc 500,000 Morgan Energy Transfer 1.00% BBB- 3/20/20 (18,003) 3,512 Stanley & Co Partners LP International plc 525,000 Morgan JC Penny 5.00% CCC- 12/20/16 (15,750) 25,637 Stanley & Co Corp., Inc. International plc 400,000 Morgan Markit CDX 5.00% BBB+ 12/20/17 (14,500) (795) Stanley & Co North America International Investment plc Grade Index 250,000 Morgan MBIA, Inc. 5.00% A- 12/20/15 (3,125) 16,013 Stanley & Co International plc 500,000 Morgan Nabors 1.00% BBB 3/20/20 (60,499) 473 Stanley & Co Industries Inc. International plc 250,000 Morgan Noble Holding 1.00% BBB 3/20/20 (31,187) (1,432) Stanley & Co International Ltd. International plc 250,000 Morgan Sabine Oil & 5.00% CCC 3/20/15 (3,750) 1,991 Stanley & Co Gas Corp. International plc 125,000 Morgan Sears Roebuck 5.00% CCC+ 3/20/15 (5,625) 5,573 Stanley & Co Acceptance Corp. International plc The accompanying notes are an integral part of these financial statements. 26 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 CREDIT DEFAULT SWAP AGREEMENTS - SELL PROTECTION ------------------------------------------------------------------------------------------------------------------------ Net Premiums Unrealized Notional Obligation Credit Expiration Received Appreciation Principal ($)(1) Counterparty Entity/Index Coupon Rating(2) Date (Paid) (Depreciation) ------------------------------------------------------------------------------------------------------------------------ 250,000 Morgan Weatherford 1.00% BBB- 3/20/20 $ (32,564) $ 7,947 Stanley & Co International International Ltd. plc 250,000 Morgan Weatherford 1.00% BBB- 3/20/15 (28,843) 4,240 Stanley & Co International International Ltd. plc ------------------------------------------------------------------------------------------------------------------------ $(1,000,065) $ 525,271 ======================================================================================================================== (1) The notional amount is the maximum amount that a seller of credit protection would be obligated to pay upon occurrence of a credit event. (2) Based on Standard & Poor's rating or the issuer of the weighted average rating of all the underlying securities of the index. Principal amounts are denominated in U.S. Dollars unless otherwise noted: EUR Euro INTEREST RATE SWAP AGREEMENTS ------------------------------------------------------------------------------------------------------------ Net Annual Premiums Unrealized Notional Pay/ Floating Fixed Expiration Received Appreciation Principal ($) Counterparty Receive Rate Rate Date (Paid) (Depreciation) ------------------------------------------------------------------------------------------------------------ 951,858 Chicago Receive LIBOR USD 1.819% 8/7/19 $ 4 $ (12,094) Mercantile 3 Month Exchange 1,660,004 Chicago Receive LIBOR USD 2.660% 8/7/24 13 (85,187) Mercantile 3 Month Exchange 2,995,260 Chicago Receive LIBOR USD 2.624% 2/12/25 13 3,777 Mercantile 3 Month Exchange 3,074,836 Chicago Receive LIBOR USD 2.808% 2/19/25 14 (20,251) Mercantile 3 Month Exchange ------------------------------------------------------------------------------------------------------------ $44 $(113,755) ============================================================================================================ The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 27 Schedule of Investments | 2/28/15 (unaudited) (continued) Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below. Level 1 - quoted prices in active markets for identical securities. Level 2 - other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.) See Notes to Financial Statements -- Note 1A. Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments) See Notes to Financial Statements -- Note 1A. Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued using fair value methods (other than prices supplied by independent pricing services or broker-dealers) are categorized as Level 3. See Notes to Financial Statements -- Note 1A. The following is a summary of the inputs used as of February 28, 2015, in valuing the Fund's assets: --------------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total --------------------------------------------------------------------------------------------------- Convertible Corporate Bonds $ -- $ 275,766 $ -- $ 275,766 Preferred Stocks -- 264,800 -- 264,800 Convertible Preferred Stocks 234,000 -- -- 234,000 Asset Backed Securities -- 326,300 -- 326,300 Collateralized Mortgage Obligations -- 8,442,846 -- 8,442,846 Corporate Bonds -- 1,081,209 -- 1,081,209 U.S. Government and Agency Obligations -- 9,704,803 -- 9,704,803 Senior Floating Rate Loan Interests -- 1,030,509 -- 1,030,509 Mutual Fund 1,104,699 -- -- 1,104,699 Repurchase Agreements -- 3,765,000 -- 3,765,000 --------------------------------------------------------------------------------------------------- Total $ 1,338,699 $24,891,233 $ -- $26,229,932 =================================================================================================== Other Financial Instruments Net Unrealized Appreciation on Credit Default Swaps $ -- $ 629,060 $ -- $ 629,060 Net Unrealized Depreciation on Centrally Cleared Credit Default Swaps -- (76,639) -- (76,639) Net Unrealized Depreciation on Interest Rate Swaps -- (113,755) -- (113,755) Net Unrealized Depreciation on Futures Contracts (1,828) -- -- (1,828) Net Unrealized Appreciation on Forward Foreign Currency Contracts -- 36,830 -- 36,830 Net Unrealized Depreciation on Forward Foreign Currency Contracts -- (10,124) -- (10,124) --------------------------------------------------------------------------------------------------- Total Other Financial Instruments $ (1,828) $ 542,011 -- $ 540,183 =================================================================================================== The accompanying notes are an integral part of these financial statements. 28 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 The following is a summary of the fair valuation of certain Portfolio's assets as of February 28, 2015: --------------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total --------------------------------------------------------------------------------------------------- Assets: Futures collateral $154,995 $ -- $ -- $ 154,995 Centrally cleared swap collateral -- 572,988 -- 572,988 Foreign currencies -- 499,979 -- 499,979 Liabilities: Variation margin for futures contracts 5,476 -- -- 5,476 Variation margin for centrally cleared swap contracts -- 956 -- 956 --------------------------------------------------------------------------------------------------- Total $160,471 $1,073,923 $ -- $1,234,394 =================================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 29 Statement of Assets and Liabilities | 2/28/15 (unaudited) ASSETS: Investment in securities (cost $22,291,108) $22,464,932 Repurchase agreements (cost $3,765,000) 3,765,000 --------------------------------------------------------------------------------------- Total investment in securities (cost $26,056,108) 26,229,932 Futures collateral 154,995 Centrally cleared swap collateral 572,988 Foreign currencies, at value (cost $500,236) 499,979 Receivables -- Investment securities sold 842,153 Fund shares sold 15,000 Swap payments 73,268 Dividends 12,598 Interest 46,731 Due from Pioneer Investment Management, Inc. 24,422 Net unrealized appreciation on forward foreign currency contracts 36,830 Net unrealized appreciation on swap contracts 662,909 Net unrealized appreciation on futures contracts 3,375 Other assets 40,275 --------------------------------------------------------------------------------------- Total assets $29,215,455 ======================================================================================= LIABILITIES: Payables -- Investment securities purchased $ 321,439 Trustee fees 1,066 Variation margin for futures contracts 5,476 Variation margin for centrally cleared swap contracts 956 Due to custodian 87,567 Net unrealized depreciation on forward foreign currency contracts 10,124 Net unrealized depreciation on swap contracts 147,604 Net unrealized depreciation on centrally cleared swap contracts 76,639 Net unrealized depreciation on futures contracts 5,203 Swap contracts, net premiums received 1,700,871 Due to affiliates 30,920 Accrued expenses 64,212 --------------------------------------------------------------------------------------- Total liabilities $ 2,452,077 ======================================================================================= NET ASSETS: Paid-in capital $26,849,105 Distributions in excess of net investment income (218,182) Accumulated net realized loss on investments, futures contracts, written swaptions, swap contracts, and foreign currency transactions (504,649) Net unrealized appreciation on investments 173,824 Net unrealized depreciation on futures contracts (1,828) Net unrealized appreciation on swap contracts 438,666 Net unrealized appreciation on forward foreign currency contracts and other assets and liabilities denominated in foreign currencies 26,442 --------------------------------------------------------------------------------------- Total net assets $26,763,378 ======================================================================================= NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $9,207,217/ 924,001 shares) $ 9.96 Class C (based on $8,820,028/ 888,515 shares) $ 9.93 Class Y (based on $8,736,133/ 875,613 shares) $ 9.98 MAXIMUM OFFERING PRICE: Class A ($9.96 (divided by) 95.5%) $ 10.43 ======================================================================================= The accompanying notes are an integral part of these financial statements. 30 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Statement of Operations (unaudited) For the Six Months Ended 2/28/15 INVESTMENT INCOME: Dividends $ 128,419 Interest 179,493 -------------------------------------------------------------------------------------- Total investment income $ 307,912 -------------------------------------------------------------------------------------- EXPENSES: Management fees $ 149,289 Distribution fees Class A 11,239 Class C 42,336 Transfer Agent fees Class A 417 Class C 203 Class Y 139 Shareholder communications expense 950 Administrative reimbursement 11,192 Custodian fees 20,924 Registration fees 29,633 Professional fees 45,152 Printing expense 10,868 Pricing fees 5,153 Fees and expenses of nonaffiliated Trustees 2,919 Miscellaneous 13,768 -------------------------------------------------------------------------------------- Total expenses $ 344,182 Less fees waived and expenses reimbursed by Pioneer Investment Management, Inc. (102,378) -------------------------------------------------------------------------------------- Net expenses $ 241,804 -------------------------------------------------------------------------------------- Net investment income $ 66,108 -------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FUTURES CONTRACTS, WRITTEN OPTIONS, WRITTEN SWAPTIONS, SWAP CONTRACTS AND FOREIGN CURRENCY TRANSACTIONS: Net realized gain (loss) on: Investments $ (41,428) Futures contracts (524,400) Written options 7,988 Written swaptions 20,655 Swap contracts (53,815) Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies 653,238 $ 62,238 -------------------------------------------------------------------------------------- Change in net unrealized appreciation (depreciation) on: Investments $ 104,153 Futures contracts 84,084 Written swaptions (115,204) Swap contracts 438,442 Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (178,429) $ 333,046 -------------------------------------------------------------------------------------- Net gain on investments, futures contracts, written swaptions, written options, written swaptions, swap contracts, and foreign currency transactions $ 395,284 -------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 461,392 ====================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 31 Statements of Changes in Net Assets ---------------------------------------------------------------------------------------------- Six Months Ended 2/28/15 12/30/13 (a) (unaudited) to 8/31/14 ---------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income (loss) $ 66,108 $ (53,880) Net realized gain (loss) on investments, futures contracts, written swaptions, written options, swap contracts, and foreign currency transactions 62,238 (2,748) Change in net unrealized appreciation on investments, futures contracts, written swaptions, swap contracts, and foreign currency transactions 333,046 304,058 ---------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 461,392 $ 247,430 ---------------------------------------------------------------------------------------------- DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.33 and $0.00 per share, respectively) $ (290,990) $ -- Class C ($0.28 and $0.00 per share, respectively) (237,127) -- Class Y ($0.35 and $0.00 per share, respectively) (292,420) -- ---------------------------------------------------------------------------------------------- Total distributions to shareowners $ (820,537) $ -- ---------------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS:(b) Net proceeds from sale of shares $ 580,467 $ 25,836,911 Reinvestment of distributions 820,537 -- Cost of shares repurchased (313,644) (49,178) ---------------------------------------------------------------------------------------------- Net increase in net assets resulting from Fund share transactions $ 1,087,360 $ 25,787,733 ---------------------------------------------------------------------------------------------- Net increase in net assets $ 728,215 $ 26,035,163 NET ASSETS: Beginning of period $26,035,163 $ -- ---------------------------------------------------------------------------------------------- End of period $26,763,378 $ 26,035,163 ---------------------------------------------------------------------------------------------- Undistributed (distributions in excess) of net investment income $ (218,182) $ 536,247 ============================================================================================== (a) Class A, Class C, and Class Y shares commenced operations on December 30, 2013. (b) At February 28, 2015, PIM owned 93.4% of the value of the outstanding shares of Pioneer Long/Short Opportunistic Credit Fund. The accompanying notes are an integral part of these financial statements. 32 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 ---------------------------------------------------------------------------------------- '15 Shares '15 Amount (unaudited) (unaudited) '14 Shares '14 Amount ---------------------------------------------------------------------------------------- Class A* Shares sold 27,115 $ 272,396 895,300 $8,956,897 Reinvestment of distributions 29,815 290,990 -- -- Less shares repurchased (27,238) (268,157) (991) (10,000) ---------------------------------------------------------------------------------------- Net increase 29,692 $ 295,229 894,309 $8,946,897 ======================================================================================== Class C* Shares sold 30,446 $ 305,925 836,825 $8,368,181 Reinvestment of distributions 24,346 237,127 -- -- Less shares repurchased (1,679) (16,407) (1,423) (14,178) ---------------------------------------------------------------------------------------- Net increase 53,113 $ 526,645 835,402 $8,354,003 ======================================================================================== Class Y* Shares sold -- $ 2,146 851,088 $8,511,833 Reinvestment of distributions 29,930 292,420 -- -- Less shares repurchased (2,928) (29,080) (2,477) (25,000) ---------------------------------------------------------------------------------------- Net increase 27,002 $ 265,486 848,611 $8,486,833 ======================================================================================== * Class A, Class C, and Class Y shares commenced operations on December 30, 2013. The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 33 Financial Highlights ------------------------------------------------------------------------------------ Six Months Ended 2/28/15 12/30/13 (unaudited) to 8/31/14 ------------------------------------------------------------------------------------ Class A Net asset value, beginning of period $ 10.11 $ 10.00 ------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income (loss) $ 0.04 $ (0.01) Net realized and unrealized gain (loss) on investments 0.14 0.12 ------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.18 $ 0.11 ------------------------------------------------------------------------------------ Distribution to shareowners: Net investment income $ (0.33) $ -- ------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ (0.15) $ 0.11 ------------------------------------------------------------------------------------ Net asset value, end of period $ 9.96 $ 10.11 ==================================================================================== Total return* 1.83% 1.10%(a) Ratio of net expenses to average net assets 1.70%** 1.70%** Ratio of net investment income (loss) to average net assets 0.67%** (0.15)%** Portfolio turnover rate 128%** 100%** Net assets, end of period (in thousands) $ 9,207 $ 9,040 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 2.50%** 2.85%** Net investment income (loss) to average net assets (0.13)%** (1.30)%** ==================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. (a) Not annualized. The accompanying notes are an integral part of these financial statements. 34 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 ------------------------------------------------------------------------------------ Six Months Ended 2/28/15 12/30/13 (unaudited) to 8/31/14 ------------------------------------------------------------------------------------ Class C Net asset value, beginning of period $ 10.06 $ 10.00 ------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income (loss) $ 0.00(a) $ (0.06) Net realized and unrealized gain (loss) on investments 0.15 0.12 ------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.15 $ 0.06 ------------------------------------------------------------------------------------ Distribution to shareowners: Net investment income $ (0.28) $ -- ------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ (0.13) $ 0.06 ------------------------------------------------------------------------------------ Net asset value, end of period $ 9.93 $ 10.06 ==================================================================================== Total return* 1.53% 0.60%(b) Ratio of net expenses to average net assets 2.45%** 2.45%** Ratio of net investment income (loss) to average net assets (0.08)%** (0.91)%** Portfolio turnover rate 128%** 100%** Net assets, end of period (in thousands) $ 8,820 $ 8,403 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 3.23%** 3.58%** Net investment income (loss) to average net assets (0.86)%** (2.04)%** ==================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. (a) Amount rounds to less than $0.01 per share. (b) Not annualized. The accompanying notes are an integral part of these financial statements. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 35 Financial Highlights (continued) ------------------------------------------------------------------------------------ Six Months Ended 2/28/15 12/30/13 (unaudited) to 8/31/14 ------------------------------------------------------------------------------------ Class Y Net asset value, beginning of period $ 10.13 $ 10.00 ------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income (loss) $ 0.05 $ 0.01(a) Net realized and unrealized gain (loss) on investments 0.15 0.12 ------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.20 $ 0.13 ------------------------------------------------------------------------------------ Distribution to shareowners: Net investment income $ (0.35) $ -- ------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ (0.15) $ 0.13 ------------------------------------------------------------------------------------ Net asset value, end of period $ 9.98 $ 10.13 ==================================================================================== Total return* 2.00% 1.30%(b) Ratio of net expenses to average net assets 1.45%** 1.45%** Ratio of net investment income (loss) to average net assets 0.92%** 0.10%**(a) Portfolio turnover rate 128%** 100%** Net assets, end of period (in thousands) $ 8,736 $ 8,592 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets 2.23%** 2.58%** Net investment income (loss) to average net assets 0.14%** (1.03)%** ==================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. (a) The amount shown for a share outstanding does not correspond to the Net Investment Loss on the Statement of Operations due to the timing of sales and repurchases of shares. (b) Not annualized. The accompanying notes are an integral part of these financial statements. 36 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Notes to Financial Statements | 2/28/15 (unaudited) 1. Organization and Significant Accounting Policies Pioneer Long/Short Opportunistic Credit Fund (the Fund) is one of five portfolios comprising Pioneer Series Trust V, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The Fund's investment objective is to seek total return. The Fund offers three classes of shares designated as Class A, Class C and Class Y shares. Class A, Class C and Class Y shares commenced operations on December 30, 2013. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board the flexibility to specify either per-share voting or dollar-weighted voting when submitting matters for shareholder approval. Under per-share voting, each share of a class of the Fund is entitled to one vote. Under dollar-weighted voting, a shareholder's voting power is determined not by the number of shares owned, but by the dollar value of the shares on the record date. Each share class has exclusive voting rights with respect to matters affecting only that class, including with respect to the distribution plan for that class. There is no distribution plan for Class Y shares. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles that require the management of the Fund to, among other things, make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses and gains and losses on investments during the reporting period. Actual results could differ from those estimates. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements, which are consistent with those policies generally accepted in the investment company industry: Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 37 A. Security Valuation Security transactions are recorded as of trade date. The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. Senior floating rate loan interests (senior loans) are valued in accordance with guidelines established by the Board of Trustees at the mean between the last available bid and asked prices from one or more brokers or dealers as obtained from Loan Pricing Corporation an independent pricing service. If price information is not available from Loan Pricing Corporation, or if the price information is deemed to be unreliable, price information will be obtained from an alternative loan interest pricing service. If no reliable price quotes are available from either the primary or alternative pricing service, broker quotes will be solicited. Fixed income are valued at prices supplied by independent pricing services, which consider such factors as market prices, market events, quotations from one or more brokers, Treasury spreads, yields, maturities and ratings. Valuations may be supplemented by dealers and other sources, as required. Equity securities that have traded on an exchange are valued at the last sale price on the principal exchange where they are traded. Equity securities that have not traded on the date of valuation, or securities for which sale prices are not available, generally are valued using the mean between the last bid and asked prices. Shares of money market mutual funds are valued at such funds' net asset value. Cash may include overnight time deposits at approved financial institutions. Trading in foreign securities is substantially completed each day at various times prior to the close of the NYSE. The values of such securities used in computing the net asset value of the Fund's shares are determined as of such times. Securities or loan interests for which independent pricing services are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of Pioneer Investment Management, Inc. (PIM), the Fund's investment advisor, pursuant to procedures adopted by the Fund's Board of Trustees. PIM's fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. 38 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. PIM's fair valuation team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. At February 28, 2015, no securities were valued using fair value methods (other than securities valued using prices supplied by independent pricing services or broker-dealers). B. Investment Income & Transactions Principal amounts of mortgage-backed securities are adjusted for monthly paydowns. Premiums and discounts related to certain mortgage-backed securities are amortized or accreted in proportion to the monthly paydowns. All discounts/premiums on purchase prices of debt securities are accreted/ amortized for financial reporting purposes over the life of the respective securities, and such accretion/amortization is included in interest income. Dividend income is recorded on the ex-dividend date except that certain dividends from foreign securities where the ex-dividend date may have passed are recorded as soon as the Fund becomes aware of the ex-dividend data in the exercise of reasonable diligence. Interest income is recorded on the accrual basis. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. C. Foreign Currency Translation The books and records of the Fund are maintained in U.S. dollars. Amounts denominated in foreign currencies are translated into U.S. dollars using current exchange rates. Net realized gains and losses on foreign currency transactions, if any, represent, among other things, the net realized gains and losses on foreign currency contracts, disposition of foreign currencies and the difference between the amount of income accrued and the U.S. dollars actually received. Further, the effects of changes in foreign currency exchange rates on investments are not segregated in the statement of operations from the effects of changes in the market price of those securities but are included with the net realized and unrealized gain or loss on investments. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 39 D. Futures Contracts The Fund may enter into futures transactions in order to attempt to hedge against changes in interest rates, securities prices and currency exchange rates or to seek to increase total return. Futures contracts are types of derivatives. All futures contracts entered into by the Fund are traded on a futures exchange. Upon entering into a futures contract, the Fund is required to deposit with a broker an amount of cash or securities equal to the minimum "initial margin" requirements of the associated futures exchange. The amount of cash deposited with the broker as collateral at February 28, 2015 was $154,995. Subsequent payments for futures contracts ("variation margin") are paid or received by the Fund, depending on the daily fluctuation in the value of the contracts, and are recorded by the Fund as unrealized gains or losses. When the contract is closed, the Fund realizes a gain or loss equal to the difference between the opening and closing value of the contract as well as any fluctuation in foreign currency exchange rates where applicable. The use of futures contracts involves, to varying degrees, elements of market, interest rate, currency exchange rate and counterparty risks, which may exceed the amount recognized by the Fund. Changes in value of the contracts may not directly correlate to the changes in value of the underlying securities. The average value of contracts open during the six months ended February 28, 2015 was $16,556,033. At February 28, 2015, open futures contracts were as follows: -------------------------------------------------------------------------------------- Number of Unrealized Contracts Settlement Appreciation Type Long/(Short) Month Value (Depreciation) -------------------------------------------------------------------------------------- F/C 90 Day Euro Future (54) 6/17 $(13,242,150) $ 3,375 U.S. 5 Year Note (CBT) (6) 3/15 (719,953) (5,203) -------------------------------------------------------------------------------------- $(13,962,103) $ (1,828) ====================================================================================== E. Forward Foreign Currency Contracts The Fund may enter into forward foreign currency contracts (contracts) for the purchase or sale of a specific foreign currency at a fixed price on a future date. All contracts are marked to market daily at the applicable exchange rates, and any resulting unrealized appreciation or depreciation is recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a contract is offset by entry into a closing transaction or extinguished by delivery of the currency. Risks may arise upon entering into these contracts from the potential inability of counterparties to meet the terms of the contract and from unanticipated movements in the value of foreign currencies relative to the U.S. dollar (see Note 5). 40 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 F. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no federal income tax provision is required. As of August 31, 2014, the Fund did not accrue any interest or penalties with respect to unrecognized tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax returns filed within the prior three years remain subject to examination by federal and state tax authorities. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. generally accepted accounting principles. Distributions in excess of net investment income or net realized gains are temporary overdistributions for financial statement purposes resulting from differences in the recognition or classification of income or distributions for financial statement and tax purposes. Capital accounts within the financial statements are adjusted for permanent book/tax differences to reflect tax character, but are not adjusted for temporary differences. The tax character of current year distributions payable will be determined at the end of the current taxable year. There were no distributions paid during the fiscal year ended August 31, 2014. The following shows the components of distributable earnings (losses) on a federal income tax basis at August 31, 2014: ---------------------------------------------------------------------------- 2014 ---------------------------------------------------------------------------- Distributable earnings: Undistributed ordinary income $820,428 Capital loss carryforward (651,754) Unrealized appreciation 104,744 ---------------------------------------------------------------------------- Total $273,418 ============================================================================ The difference between book-basis and tax-basis net unrealized appreciation is attributable to the tax deferral of the losses on wash sales, adjustments relating to catastrophe bonds and credit default swaps and the mark to market of forwards, swaps and future contracts. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 41 G. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit), earned $45 in underwriting commissions on the sale of Class A shares during the six months ended February 28, 2015. H. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Distribution fees are calculated based on the average daily net asset value attributable to Class A and Class C shares of the Fund, respectively (see Note 4). Class Y shares do not pay distribution fees. All expenses and fees paid to the transfer agent, Pioneer Investment Management Shareholder Services, Inc. (PIMSS), for its services are allocated among the classes of shares based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). Distributions to shareowners are recorded as of the ex-dividend date. Distributions paid by the Fund with respect to each class of shares are calculated in the same manner and at the same time, except that net investment income dividends to Class A, Class C and Class Y shares can reflect different transfer agent and distribution expense rates. I. Risks Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates and economic and political conditions. At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making the Fund more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. The Fund's prospectus contains unaudited information regarding the Fund's principal risks. Please refer to that document when considering the Fund's principal risks. J. Credit Default Swap Agreements A credit default swap is a contract between a buyer of protection and a seller of protection against a pre-defined credit event. The Fund may buy or sell credit default swap contracts to seek to increase the Fund's income, or to attempt to hedge the risk of default on Fund securities. A credit default swap index is used to hedge risk or take a position on a basket of credit entities or indices. As a seller of protection, the Fund would be required to pay the 42 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 notional (or other agreed-upon) value of the referenced debt obligation to the counterparty in the event of a default by a U.S. or foreign corporate issuer of a debt obligation, which would likely result in a loss to the Fund. In return, the Fund would receive from the counterparty a periodic stream of payments during the term of the contract provided that no event of default occurred. The maximum exposure of loss to the seller would be the notional value of the credit default swaps outstanding. If no default occurs, the Fund would keep the stream of payments and would have no payment obligation. The Fund may also buy credit default swap contracts in order to hedge against the risk of default of debt securities, in which case the Fund would function as the counterparty referenced above. When the Fund enters into a credit default swap contract, the protection buyer makes an up front payment to the protection seller in exchange for the rights to receive a contingent payment. An up front payment made by the Fund, as the protection buyer, is recorded as an asset in the Statement of Assets and Liabilities. Periodic payments received or paid by the Fund are recorded as realized gains or losses in the Statement of Operations. Credit default swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Payments received or made as a result of a credit event or upon termination of the contract are recognized, net of the appropriate amount of the upfront payment, as realized gains or losses in the Statement of Operations. Credit default swap contracts involving the sale of protection may involve greater risks than if the Fund had invested in the referenced debt instrument directly. Credit default swap contracts are subject to general market risk, liquidity risk, counterparty risk and credit risk. If the Fund is a protection buyer and no credit event occurs, it will lose its investment. If the Fund is a protection seller and a credit event occurs, the value of the referenced debt instrument received by the Fund, together with the periodic payments received, may be less than the amount the Fund pays to the protection buyer, resulting in a loss to the Fund. Certain swap contracts that are cleared through a central clearinghouse are referred to as centrally cleared swaps. All payments made or received by the Fund are pursuant to a centrally cleared swap contract with the central clearing party rather than the original counterparty. Upon entering into a centrally cleared swap contract, the Fund is required to make an initial margin deposit, either in cash or in securities. The daily change in value on open centrally cleared contracts is recorded as variation margin on centrally cleared swaps on the Statement of Assets and Liabilities. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 43 Open credit default swap contracts at February 28, 2015 are listed in the Schedule of Investments. The average value of credit default swap contracts open during the six months ended February 28, 2015 was $922,659. K. Interest Rate Swap Contracts The Fund may enter into interest rate swaps to attempt to hedge against interest rate fluctuations or to enhance its income. Pursuant to the interest rate swap agreement, the Fund negotiates with a counterparty to exchange a periodic stream of payments based on a benchmark interest rate. One cash flow stream will typically be a floating rate payment based upon the specified floating benchmark interest rate while the other is typically a fixed interest rate. Payment flows are usually netted against each other, with the difference being paid by one party to the other on a monthly basis. Periodic payments received or paid by the Fund are recorded as realized gains or losses in the Statement of Operations. Interest rate swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded as unrealized appreciation or depreciation in the Statement of Assets and Liabilities. Interest rate swap contracts are subject to counterparty risk and movements in interest rates. Open interest rate swap contracts at February 28, 2015 are listed in the Schedule of Investments. The average value of interest rate swap contracts open during the six months ended February 28, 2015 was $84,669. L. Credit Default Swaption Writing The Fund may write put and covered call swaptions on portfolio securities in order to attempt to hedge against changes in the value of portfolio securities or to seek to increase total return. When a swaption is written, the Fund receives a premium and becomes obligated to purchase or sell the underlying security at a fixed price upon the exercise of the swaption. When the Fund writes a swaption, an amount equal to the premium received by the Fund is recorded as a liability and is subsequently adjusted to the current value of the swaption written. Premiums received from writing swaptions that expire unexercised are treated by the Fund on the expiration date as realized gains from investments. The difference between the premium and the amount paid on effecting a closing purchase transaction, including brokerage commissions, is also treated as a realized gain or, if the premium is less than the amount paid for the closing purchase transaction, as a realized loss. If a call swaption is exercised, the premium is added to the proceeds from the sale of the underlying security in determining whether the Fund has realized a gain or loss. The Fund as writer of a swaption bears the market risk of an unfavorable change in the price of the security underlying the written swaption. 44 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 The average value of contracts open during the six months ended February 28, 2015 was $1,494. The Fund did not hold any written swaption contracts at February 28, 2015. Transactions in written swaptions for the six months ended February 28, 2015 are summarized as follows: ---------------------------------------------------------------------------- Number of Premiums Contracts Received ---------------------------------------------------------------------------- Options outstanding at beginning of period (10,200,000) $ 134,640 Options opened (482) 59,843 Options exercised 260 (33,308) Options closed -- -- Options expired 10,200,222 (161,175) ---------------------------------------------------------------------------- Options outstanding at end of period -- $ -- ============================================================================ M. Repurchase Agreements With respect to repurchase agreements entered into by the Fund, the value of the underlying securities (collateral), including accrued interest, is required to be equal to or in excess of the repurchase price. The collateral for all repurchase agreements is held in safekeeping in the customer-only account of the Fund's custodian or a subcustodian of the Fund. PIM is responsible for determining that the value of the collateral remains at least equal to the repurchase price. 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, manages the Fund's portfolio. Management fees are calculated daily at an annual rate of 1.15% of the average daily net assets of the Fund up to $1 billion and 1.05% of the Fund's average daily net assets over $1 Billion. For the six months ended February 28, 2015, the annualized management fee was equivalent to 1.15% of the Fund's average daily net assets. PIM has contractually agreed to limit ordinary operating expenses to the extent required to reduce Fund expenses to 1.70%, 2.45% and 1.45% of the average daily net assets attributable to Class A, Class C and Class Y shares, respectively. These expense limitations are in effect through January 1, 2016. Fees waived and expenses reimbursed during the six months ended February 28, 2015 are reflected on the Statement of Operations. Fees and expenses of other investment companies in which the Fund may invest are not included in the expense limitations noted above. There can be no assurance that PIM will extend the expense limitation agreement for a class of shares beyond the date referred to above. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 45 In addition, under the management and administration agreements, certain other services and costs, including accounting, regulatory reporting and insurance premiums, are paid by the Fund as administrative reimbursements. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $23,455 in management fees, administrative costs and certain other reimbursements payable to PIM at February 28, 2015. 3. Transfer Agent PIMSS, a wholly owned indirect subsidiary of UniCredit, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. In addition, the Fund reimburses PIMSS for out-of-pocket expenses incurred by PIMSS related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the six months ended February 28, 2015, such out-of-pocket expenses by class of shares were as follows: -------------------------------------------------------------------------------- Shareholder Communications: -------------------------------------------------------------------------------- Class A $607 Class C 155 Class Y 188 -------------------------------------------------------------------------------- Total $950 ================================================================================ Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $258 in transfer agent fees and out-of-pocket reimbursements payable to PIMSS at February 28, 2015. 4. Distribution Plan The Fund has adopted a Distribution Plan pursuant to Rule 12b-1 of the Investment Company Act of 1940 with respect to its Class A and Class C shares. Pursuant to the Plan, the Fund pays PFD 0.25% of the average daily net assets attributable to Class A shares as compensation for personal services and/or account maintenance services or distribution services with regard to Class A shares. Pursuant to the Plan, the Fund also pays PFD 1.00% of the average daily net assets attributable to Class C shares. The fee for Class C shares consists of a 0.25% service fee and a 0.75% distribution fee paid as compensation for personal services and/or account maintenance services or distribution services with regard to Class C shares. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $7,207 in distribution fees payable to PFD at February 28, 2015. In addition, redemptions of each class of shares (except Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares 46 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class Y. Proceeds from the CDSCs are paid to PFD. For the six months ended February 28, 2015, no CDSCs were paid to PFD. 5. Forward Foreign Currency Contracts At February 28, 2015, the Fund had entered into various forward foreign currency contracts that obligate the Fund to deliver or take delivery of currencies at specified future maturity dates. Alternatively, prior to the settlement date of a forward foreign currency contract, the Fund may close out such contract by entering into an offsetting contract. The average value of forward foreign currency contracts open during the six months ended February 28, 2015 was $4,209,384. Open forward foreign currency contracts at February 28, 2015 were as follows: --------------------------------------------------------------------------------------------------- Quantity Net Purchased/ Book Settlement US $ Value Unrealized Currency Counterparty (Sold) Value Date at 2/28/15 Appreciation --------------------------------------------------------------------------------------------------- CHF (Swiss Franc) Citibank NA (349,803) $ 370,206 5/26/15 $(367,912) $ 2,294 EURO (European Euro) Citibank NA (772,121) 877,651 5/26/15 (864,885) 12,766 EURO (European Euro) Citibank NA 195,187 221,723 5/26/15 (218,405) 3,318 HUF (Hungarian Forint) Citibank NA (22,866,777) 84,792 5/26/15 (84,270) 522 JPY (Japanese Yen) Citibank NA (75,780,622) 636,505 5/26/15 (633,799) 2,706 THB (Thai Baht) Citibank NA 1,638,521 50,650 2/27/15 (50,619) 31 TRY (Turkish Lira) Citibank NA (499,159) 197,707 5/26/15 (194,744) 2,963 CZK (Czech JP Morgan Koruna) Chase Bank (8,077,094) 333,706 5/26/15 (328,982) 4,724 EURO (European JP Morgan Euro) Chase Bank (142,515) 161,743 5/26/15 (159,637) 2,106 GBP (British Pound JP Morgan Sterling) Chase Bank (162,879) 251,609 5/26/15 (251,254) 355 IDR (Indonesian JP Morgan Rupiah) Chase Bank 2,147,349,986 (162,309) 5/26/15 163,695 1,386 MXN (Mexican JP Morgan Peso) Chase Bank 4,848,978 (322,171) 5/26/15 322,879 708 SGD (Singapore JP Morgan Dollar) Chase Bank (454,684) 333,907 5/26/15 (332,926) 981 ZAR (South JP Morgan African Rand) Chase Bank (1,944,611) 166,289 5/26/15 (164,319) 1,970 --------------------------------------------------------------------------------------------------- $ 36,830 =================================================================================================== Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 47 --------------------------------------------------------------------------------------------------- Quantity Net Purchased/ Book Settlement US $ Value Unrealized Currency Counterparty (Sold) Value Date at 2/28/15 Depreciation --------------------------------------------------------------------------------------------------- CAD (Canadian Dollar) Citibank NA (569,367) $ 452,530 5/26/15 $(454,459) $ (1,929) NOK (Norwegian Krone) Citibank NA 2,545,315 (334,179) 5/26/15 331,295 (2,884) SEK (Swedish Krona) Citibank NA (2,814,545) 335,018 5/26/15 (337,604) (2,586) AUD (Australian JP Morgan Dollar) Chase Bank (602,260) 468,094 5/26/15 (468,199) (105) CLP (Chilean JP Morgan Peso) Chase Bank (52,791,592) 84,352 5/26/15 (84,961) (609) INR Indian JP Morgan Rupee Chase Bank 29,755,622 (473,816) 5/26/15 473,334 (482) TWD (New JP Morgan Taiwan Dollar) Chase Bank (9,544,776) 302,155 5/26/15 (303,684) (1,529) --------------------------------------------------------------------------------------------------- $(10,124) =================================================================================================== 6. Expense Offset Arrangements The Fund has entered into certain expense offset arrangements with PIMSS which may result in a reduction in the Fund's total expenses due to interest earned on cash held by PIMSS. For the six months ended February 28, 2015, the Fund's expenses were not reduced under such arrangements. 7. Assets and Liabilities Offsetting Financial instruments subject to an enforceable master netting agreement have been offset on the Statement of Assets and Liabilities. The following charts show gross assets and liabilities of the Fund as of February 28, 2015. ------------------------------------------------------------------------------------------------- Assets: Net Gross Amounts Gross Amounts Amounts of Assets Not Offset in Offset Presented the Statement of in the in the Assets and Liabilities Gross Statement Statement ------------------------ Amounts of of Assets of Assets Cash Recognized and and Financial Collateral Net Description Assets Liabilities Liabilities Instruments Received* Amount ------------------------------------------------------------------------------------------------- Forward foreign currency contracts $ 36,830 $ -- $ 36,830 $ -- $ -- $ 36,830 Swap contracts 662,909 (224,243) 438,666 -- -- 438,666 ------------------------------------------------------------------------------------------------- $699,739 $(224,243) $475,496 $ -- $ -- $475,496 ================================================================================================= 48 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 ------------------------------------------------------------------------------------------------- Liabilities: Net Gross Amounts of Gross Amounts Amounts Liabilities Not Offset in Offset Presented the Statement of in the in the Assets and Liabilities Gross Statement Statement ------------------------ Amounts of of Assets of Assets Cash Recognized and and Financial Collateral Net Description Liabilities Liabilities Liabilities Instruments Received* Amount ------------------------------------------------------------------------------------------------- Forward foreign currency contracts $ 10,124 $ -- $10,124 $ -- $ -- $10,124 Swap contracts 224,243 (224,243) -- -- -- -- ------------------------------------------------------------------------------------------------- $234,367 $(224,243) $10,124 $ -- $ -- $10,124 ================================================================================================= 8. Additional Disclosures about Derivative Instruments and Hedging Activities: Values of derivative instruments as of February 28, 2015 were as follows: ---------------------------------------------------------------------------------------------- Derivatives Not Accounted for as Asset Derivatives 2014 Liabilities Derivatives 2014 Hedging Instruments ----------------------------- ------------------------------- Under Accounting Statement of Assets Statement of Assets Standards Codification and Liabilities and Liabilities (ASC) 815 Location Value Location Value ---------------------------------------------------------------------------------------------- Forward foreign Net unrealized Net unrealized currency contracts appreciation on depreciation on forward foreign forward foreign currency contracts $ 36,830 currency contracts $ 10,124 Swap contracts Net unrealized Net unrealized appreciation on depreciation on swap contracts 662,909 swap contracts 224,243 Futures contracts Net unrealized Net unrealized appreciation on depreciation on futures contracts -- futures contracts 1,828 ---------------------------------------------------------------------------------------------- Total $669,739 $236,195 ============================================================================================== Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 49 The effect of derivative instruments on the Statement of Operations for the six months ended February 28, 2015 was as follows: ----------------------------------------------------------------------------------------------- Change in Derivatives Not Realized Unrealized Accounted for as Gain or Appreciation or Hedging Instruments (Loss) on (Depreciation) Under Accounting Location of Gain or (Loss) Derivatives on Derivatives Standards Codification on Derivatives Recognized Recognized Recognized (ASC) 815 in Income in Income in Income ----------------------------------------------------------------------------------------------- Forward foreign Net realized gain (loss) on currency contracts forward foreign currency contracts $ 761,012 Forward foreign Change in unrealized appreciation currency contracts (depreciation) on forward foreign currency contracts $(189,588) Written options Net realized gain (loss) on written options $ 7,988 Written swaptions Net realized gain (loss) on written swaptions $ 20,655 Written swaptions Change in unrealized appreciation (depreciation) on written swaptions $(115,204) Futures contracts Net realized gain (loss) on futures contracts $(524,400) Futures contracts Change in net unrealized appreciation (depreciation) on futures contracts $ 84,084 Swap contracts Net realized gain (loss) on swap contracts $ (53,815) Swap contracts Change in net unrealized appreciation (depreciation) on swap contracts $ 438,442 50 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Approval of Investment Advisory Agreement Pioneer Investment Management, Inc. (PIM) serves as the investment adviser to Pioneer Long/Short Opportunistic Credit Fund (the Fund) pursuant to an investment advisory agreement between PIM and the Fund. In order for PIM to remain the investment adviser of the Fund, the Trustees of the Fund must determine annually whether to renew the investment advisory agreement for the Fund. The contract review process began in January 2014 as the Trustees of the Fund agreed on, among other things, an overall approach and timeline for the process. Contract review materials were provided to the Trustees in March 2014 and July 2014. Supplemental contract review materials were provided to the Trustees in September 2014. In addition, the Trustees reviewed and discussed the Fund's performance at regularly scheduled meetings throughout the year, and took into account other information related to the Fund provided to the Trustees at regularly scheduled meetings, in connection with the review of the Fund's investment advisory agreement. In March 2014, the Trustees, among other things, discussed the memorandum provided by Fund counsel that summarized the legal standards and other considerations that are relevant to the Trustees in their deliberations regarding the renewal of the investment advisory agreement, and reviewed and discussed the qualifications of the investment management teams, as well as the level of investment by the Fund's portfolio managers in the Fund. In July 2014, the Trustees, among other things, reviewed the Fund's management fee and total expense ratios, the financial statements of PIM and its parent companies, the profitability analyses provided by PIM, and possible economies of scale. The Trustees also reviewed the profitability of the institutional business of PIM and PIM's affiliate, Pioneer Institutional Asset Management, Inc. (together with PIM, "Pioneer"), as compared to that of PIM's fund management business, and considered the differences between the fees and expenses of the Fund and the fees and expenses of Pioneer's institutional accounts, as well as the different services provided by PIM to the Fund and by Pioneer to the institutional accounts. The Trustees further considered contract review materials in September 2014. At a meeting held on September 16, 2014, based on their evaluation of the information provided by PIM and third parties, the Trustees of the Fund, including the Independent Trustees voting separately, unanimously approved the renewal of the investment advisory agreement for another year. In considering the renewal of the investment advisory agreement, the Trustees considered various factors that they determined were relevant, including the factors described below. In all quintile rankings referred to throughout this disclosure, Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 51 first quintile is most favorable to the Fund's shareowners. The Trustees did not identify any single factor as the controlling factor in determining to approve the renewal of the agreement. Nature, Extent and Quality of Services The Trustees considered the nature, extent and quality of the services that had been provided by PIM to the Fund, taking into account the investment objective and strategy of the Fund. The Trustees reviewed the terms of the investment advisory agreement. The Trustees also reviewed PIM's investment approach for the Fund and its research process. The Trustees considered the resources of PIM and the personnel of PIM who provide investment management services to the Fund. They also reviewed the amount of non-Fund assets managed by the portfolio managers of the Fund. The Trustees considered the non-investment resources and personnel of PIM involved in PIM's services to the Fund, including PIM's compliance and legal resources and personnel. The Trustees noted the substantial attention and high priority given by PIM's senior management to the Pioneer fund complex. The Trustees considered that PIM supervises and monitors the performance of the Fund's service providers and provides the Fund with personnel (including Fund officers) and other resources that are necessary for the Fund's business management and operations. The Trustees also considered that, as administrator, PIM is responsible for the administration of the Fund's business and other affairs. The Trustees considered the fees paid to PIM for the provision of administration services. Based on these considerations, the Trustees concluded that the nature, extent and quality of services that had been provided by PIM to the Fund were satisfactory and consistent with the terms of the investment advisory agreement. Performance of the Fund In considering the Fund's performance, the Trustees regularly review and discuss analysis and data prepared by PIM and information comparing the Fund's performance with the performance of its peer group of funds as classified by each of Morningstar, Inc. (Morningstar) and Lipper, and with the performance of the Fund's benchmark index. They also discuss the Fund's performance with PIM on a regular basis. The Trustees confirmed that these regular reviews and discussions were factored into the Trustees' deliberations concerning the renewal of the advisory agreement. For purposes of their contract renewal deliberations, the Trustees considered the discussions held throughout the year regarding the Fund's performance and the performance results of the Fund over various time periods, including the Fund's performance 52 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 results for periods ended June 30, 2014. The Trustees indicated that the Fund's performance was satisfactory and supported the renewal of the investment advisory agreement. Management Fee and Expenses The Trustees considered information showing the fees and expenses of the Fund in comparison to the management fees and expense ratios of its peer group of funds as classified by Morningstar and also to the expense ratios of a peer group of funds selected on the basis of criteria determined by the Independent Trustees for this purpose using data provided by Strategic Insight Mutual Fund Research and Consulting, LLC (Strategic Insight), an independent third party. The Trustees considered that the Fund's management fee for the twelve months ended June 30, 2014 was in the fifth quintile relative to the management fees paid by other funds in its Morningstar peer group for the comparable period. The Trustees also considered the breakpoint in the management fee schedule and the reduced fee rate above a certain asset level. The Trustees noted the investment management expertise and resources required to implement the Fund's complex investment strategy. The Trustees considered that the expense ratio of the Fund's Class A shares for the twelve months ended June 30, 2014 was in the fifth quintile relative to its Morningstar peer group and in the fifth quintile relative its Strategic Insight peer group, in each case for the comparable period. The Trustees noted that PIM was waiving fees and/or reimbursing expenses in order to limit the ordinary operating expenses of the Fund. The Trustees noted the Fund's relatively small asset size compared to most of the other funds in its peer groups, and that the Fund has not been able to take advantage of the economies of scale afforded by greater asset size. The Trustees considered the impact of transfer agency, sub-transfer agency, and other non-management fee expenses on the expense ratios of the Fund. The Trustees noted that they separately review the Fund's transfer agency, sub-transfer agency and intermediary arrangements. The Trustees reviewed management fees charged by Pioneer to institutional and other clients, including publicly offered European funds sponsored by affiliates of Pioneer, unaffiliated U.S. registered investment companies (in a sub-advisory capacity), and unaffiliated foreign and domestic separate accounts. The Trustees also considered PIM's costs in providing services to the Fund and Pioneer's costs in providing services to the other clients and considered the differences in management fees and profit margins for Fund and non-Fund services. In evaluating the fees associated with Pioneer's client accounts, the Trustees took into account the respective demands, resources and complexity associated with the Fund and client accounts. The Trustees noted that, in some instances, the fee rates for those clients were lower than the management fee for the Fund and Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 53 considered that, under the investment advisory agreement with the Fund, PIM performs additional services for the Fund that it does not provide to those other clients or services that are broader in scope, including oversight of the Fund's other service providers and activities related to compliance and the extensive regulatory and tax regimes to which the Fund is subject. The Trustees also considered the different entrepreneurial risks associated with PIM's management of the Fund and Pioneer's management of the other client accounts. The Trustees concluded that the management fee payable by the Fund to PIM was reasonable in relation to the nature and quality of the services provided by PIM to the Fund. Profitability The Trustees considered information provided by PIM regarding the profitability of PIM with respect to the advisory services provided by PIM to the Fund, including the methodology used by PIM in allocating certain of its costs to the management of the Fund. The Trustees also considered PIM's profit margin in connection with the overall operation of the Fund. They further reviewed the financial results realized by PIM and its affiliates from non-fund businesses. The Trustees considered PIM's profit margins with respect to the Fund in comparison to the limited industry data available and noted that the profitability of any adviser was affected by numerous factors, including its organizational structure and method for allocating expenses. The Trustees concluded that PIM's profitability with respect to the management of the Fund was not unreasonable. Economies of Scale The Trustees considered PIM's views relating to economies of scale in connection with the Pioneer Funds as fund assets grow and the extent to which any such economies of scale are shared with funds and fund shareholders. The Trustees noted the breakpoint in the management fee schedule. The Trustees recognize that economies of scale are difficult to identify and quantify, and that, among other factors that may be relevant, are the following: fee levels, expense subsidization, investment by PIM in research and analytical capabilities and PIM's commitment and resource allocation to the Fund. The Trustees noted that profitability also may be an indicator of the availability of any economies of scale, although profitability may vary for other reasons including reductions in expenses. The Trustees concluded that economies of scale, if any, were being appropriately shared with the Funds. 54 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 Other Benefits The Trustees considered the other benefits to PIM from its relationship with the Fund. The Trustees considered the character and amount of fees paid by the Fund, other than under the investment advisory agreement, for services provided by PIM and its affiliates. The Trustees further considered the revenues and profitability of PIM's businesses other than the fund business. Pioneer is the principal U.S. asset management business of Pioneer Global Asset Management, the worldwide asset management business of UniCredit Group, which manages over $150 billion in assets (including the Funds). Pioneer and the Funds receive reciprocal intangible benefits from the relationship, including mutual brand recognition and, for the Funds, direct and indirect access to the resources of a large global asset manager. The Trustees concluded that any such benefits received by Pioneer as a result of its relationship with the Funds were reasonable and their consideration of the advisory agreement between the Fund and PIM and the fees thereunder were unaffected by Pioneer's possible receipt of any such intangible benefits. Conclusion After consideration of the factors described above as well as other factors, the Trustees, including all of the Independent Trustees, concluded that the investment advisory agreement between PIM and the Fund, including the fees payable thereunder, was fair and reasonable and voted to approve the proposed renewal of the investment advisory agreement for the Fund. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 55 Trustees, Officers and Service Providers Trustees Advisory Trustee Thomas J. Perna, Chairman Lorraine H. Monchak* David R. Bock Benjamin M. Friedman Officers Margaret B.W. Graham Lisa M. Jones, President and Chief Marguerite A. Piret Executive Officer Fred J. Ricciardi Mark E. Bradley, Treasurer and Kenneth J. Taubes Chief Financial Officer Christopher J. Kelley, Secretary and Chief Legal Officer Investment Adviser and Administrator Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Pioneer Investment Management Shareholder Services, Inc. Proxy Voting Policies and Procedures of the Fund are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to shareowners at us.pioneerinvestments.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. * Ms. Monchak is a non-voting Advisory Trustee. 56 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 This page for your notes. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 57 This page for your notes. 58 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 This page for your notes. Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 59 This page for your notes. 60 Pioneer Long/Short Opportunistic Credit Fund | Semiannual Report | 2/28/15 How to Contact Pioneer We are pleased to offer a variety of convenient ways for you to contact us for assistance or information. Call us for: -------------------------------------------------------------------------------- Account Information, including existing accounts, new accounts, prospectuses, applications and service forms 1-800-225-6292 FactFone(SM) for automated fund yields, prices, account information and transactions 1-800-225-4321 Retirement plans information 1-800-622-0176 Write to us: -------------------------------------------------------------------------------- PIMSS, Inc. P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address ask.pioneer@pioneerinvestments.com (for general questions about Pioneer only) Visit our web site: us.pioneerinvestments.com This report must be preceded or accompanied by a prospectus. The Fund files a complete schedule of investments with the Securities and Exchange Commission for the first and third quarters for each fiscal year on Form N-Q. Shareholders may view the filed Form N-Q by visiting the Commission's web site at www.sec.gov. The filed form may also be viewed and copied at the Commission's Public Reference Room in Washington, DC. Information regarding the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 us.pioneerinvestments.com Securities offered through Pioneer Funds Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2015 Pioneer Investments 27687-01-0415 ITEM 2. CODE OF ETHICS. (a) Disclose whether, as of the end of the period covered by the report, the registrant has adopted a code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party. If the registrant has not adopted such a code of ethics, explain why it has not done so. The registrant has adopted, as of the end of the period covered by this report, a code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer and controller. (b) For purposes of this Item, the term "code of ethics" means written standards that are reasonably designed to deter wrongdoing and to promote: (1) Honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships; (2) Full, fair, accurate, timely, and understandable disclosure in reports and documents that a registrant files with, or submits to, the Commission and in other public communications made by the registrant; (3) Compliance with applicable governmental laws, rules, and regulations; (4) The prompt internal reporting of violations of the code to an appropriate person or persons identified in the code; and (5) Accountability for adherence to the code. (c) The registrant must briefly describe the nature of any amendment, during the period covered by the report, to a provision of its code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item. The registrant must file a copy of any such amendment as an exhibit pursuant to Item 10(a), unless the registrant has elected to satisfy paragraph (f) of this Item by posting its code of ethics on its website pursuant to paragraph (f)(2) of this Item, or by undertaking to provide its code of ethics to any person without charge, upon request, pursuant to paragraph (f)(3) of this Item. The registrant has made no amendments to the code of ethics during the period covered by this report. (d) If the registrant has, during the period covered by the report, granted a waiver, including an implicit waiver, from a provision of the code of ethics to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, that relates to one or more of the items set forth in paragraph (b) of this Item, the registrant must briefly describe the nature of the waiver, the name of the person to whom the waiver was granted, and the date of the waiver. Not applicable. (e) If the registrant intends to satisfy the disclosure requirement under paragraph (c) or (d) of this Item regarding an amendment to, or a waiver from, a provision of its code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item by posting such information on its Internet website, disclose the registrant's Internet address and such intention. Not applicable. (f) The registrant must: (1) File with the Commission, pursuant to Item 12(a)(1), a copy of its code of ethics that applies to the registrant's principal executive officer,principal financial officer, principal accounting officer or controller, or persons performing similar functions, as an exhibit to its annual report on this Form N-CSR (see attachment); (2) Post the text of such code of ethics on its Internet website and disclose, in its most recent report on this Form N-CSR, its Internet address and the fact that it has posted such code of ethics on its Internet website; or (3) Undertake in its most recent report on this Form N-CSR to provide to any person without charge, upon request, a copy of such code of ethics and explain the manner in which such request may be made. 	See Item 10(2) ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. (a) (1) Disclose that the registrant's board of trustees has determined that the registrant either: (i) Has at least one audit committee financial expert serving on its audit committee; or (ii) Does not have an audit committee financial expert serving on its audit committee. The registrant's Board of Trustees has determined that the registrant has at least one audit committee financial expert. (2) If the registrant provides the disclosure required by paragraph (a)(1)(i) of this Item, it must disclose the name of the audit committee financial expert and whether that person is "independent." In order to be considered "independent" for purposes of this Item, a member of an audit committee may not, other than in his or her capacity as a member of the audit committee, the board of trustees, or any other board committee: (i) Accept directly or indirectly any consulting, advisory, or other compensatory fee from the issuer; or (ii) Be an "interested person" of the investment company as defined in Section 2(a)(19) of the Act (15 U.S.C. 80a-2(a)(19)). Ms. Marguerite A. Piret, an independent trustee, is such an audit committee financial expert. (3) If the registrant provides the disclosure required by paragraph (a)(1) (ii) of this Item, it must explain why it does not have an audit committee financial expert. Not applicable. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. (a) Disclose, under the caption AUDIT FEES, the aggregate fees billed for each of the last two fiscal years for professional services rendered by the principal accountant for the audit of the registrant's annual financial statements or services that are normally provided by the accountant in connection with statutory and regulatory filings or engagements for those fiscal years. N/A (b) Disclose, under the caption AUDIT-RELATED FEES, the aggregate fees billed in each of the last two fiscal years for assurance and related services by the principal accountant that are reasonably related to the performance of the audit of the registrant's financial statements and are not reported under paragraph (a) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A (c) Disclose, under the caption TAX FEES, the aggregate fees billed in each of the last two fiscal years for professional services rendered by the principal accountant for tax compliance, tax advice, and tax planning. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A (d) Disclose, under the caption ALL OTHER FEES, the aggregate fees billed in each of the last two fiscal years for products and services provided by the principal accountant, other than the services reported in paragraphs (a) through (c) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A (e) (1) Disclose the audit committee's pre-approval policies and procedures described in paragraph (c)(7) of Rule 2-01 of Regulation S-X. PIONEER FUNDS APPROVAL OF AUDIT, AUDIT-RELATED, TAX AND OTHER SERVICES PROVIDED BY THE INDEPENDENT AUDITOR SECTION I - POLICY PURPOSE AND APPLICABILITY The Pioneer Funds recognize the importance of maintaining the independence of their outside auditors. Maintaining independence is a shared responsibility involving Pioneer Investment Management, Inc ("PIM"), the audit committee and the independent auditors. The Funds recognize that a Fund's independent auditors: 1) possess knowledge of the Funds, 2) are able to incorporate certain services into the scope of the audit, thereby avoiding redundant work, cost and disruption of Fund personnel and processes, and 3) have expertise that has value to the Funds. As a result, there are situations where it is desirable to use the Fund's independent auditors for services in addition to the annual audit and where the potential for conflicts of interests are minimal. Consequently, this policy, which is intended to comply with Rule 210.2-01(C)(7), sets forth guidelines and procedures to be followed by the Funds when retaining the independent audit firm to perform audit, audit-related tax and other services under those circumstances, while also maintaining independence. Approval of a service in accordance with this policy for a Fund shall also constitute approval for any other Fund whose pre-approval is required pursuant to Rule 210.2-01(c)(7)(ii). In addition to the procedures set forth in this policy, any non-audit services that may be provided consistently with Rule 210.2-01 may be approved by the Audit Committee itself and any pre-approval that may be waived in accordance with Rule 210.2-01(c)(7)(i)(C) is hereby waived. Selection of a Fund's independent auditors and their compensation shall be determined by the Audit Committee and shall not be subject to this policy. SECTION II - POLICY ---------------- -------------------------------- ------------------------------------------------- SERVICE SERVICE CATEGORY DESCRIPTION SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES CATEGORY ---------------- -------------------------------- ------------------------------------------------- I. AUDIT Services that are directly o Accounting research assistance SERVICES related to performing the o SEC consultation, registration independent audit of the Funds statements, and reporting o Tax accrual related matters o Implementation of new accounting standards o Compliance letters (e.g. rating agency letters) o Regulatory reviews and assistance regarding financial matters o Semi-annual reviews (if requested) o Comfort letters for closed end offerings ---------------- -------------------------------- ------------------------------------------------- II. Services which are not o AICPA attest and agreed-upon procedures AUDIT-RELATED prohibited under Rule o Technology control assessments SERVICES 210.2-01(C)(4) (the "Rule") o Financial reporting control assessments and are related extensions of o Enterprise security architecture the audit services support the assessment audit, or use the knowledge/expertise gained from the audit procedures as a foundation to complete the project. In most cases, if the Audit-Related Services are not performed by the Audit firm, the scope of the Audit Services would likely increase. The Services are typically well-defined and governed by accounting professional standards (AICPA, SEC, etc.) ---------------- -------------------------------- ------------------------------------------------- ------------------------------------- ------------------------------------ AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------- ------------------------------------ o "One-time" pre-approval o A summary of all such for the audit period for all services and related fees pre-approved specific service reported at each regularly subcategories. Approval of the scheduled Audit Committee independent auditors as meeting. auditors for a Fund shall constitute pre approval for these services. ------------------------------------- ------------------------------------ o "One-time" pre-approval o A summary of all such for the fund fiscal year within services and related fees a specified dollar limit (including comparison to for all pre-approved specified dollar limits) specific service subcategories reported quarterly. o Specific approval is needed to exceed the pre-approved dollar limit for these services (see general Audit Committee approval policy below for details on obtaining specific approvals) o Specific approval is needed to use the Fund's auditors for Audit-Related Services not denoted as "pre-approved", or to add a specific service subcategory as "pre-approved" ------------------------------------- ------------------------------------ SECTION III - POLICY DETAIL, CONTINUED ----------------------- --------------------------- ----------------------------------------------- SERVICE CATEGORY SERVICE CATEGORY SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES DESCRIPTION ----------------------- --------------------------- ----------------------------------------------- III. TAX SERVICES Services which are not o Tax planning and support prohibited by the Rule, o Tax controversy assistance if an officer of the Fund o Tax compliance, tax returns, excise determines that using the tax returns and support Fund's auditor to provide o Tax opinions these services creates significant synergy in the form of efficiency, minimized disruption, or the ability to maintain a desired level of confidentiality. ----------------------- --------------------------- ----------------------------------------------- ------------------------------------- ------------------------- AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------- ------------------------- ------------------------------------- ------------------------- o "One-time" pre-approval o A summary of for the fund fiscal year all such services and within a specified dollar limit related fees 				 (including comparison 			 to specified dollar 			 limits) reported 			 quarterly. o Specific approval is needed to exceed the pre-approved dollar limits for these services (see general Audit Committee approval policy below for details on obtaining specific approvals) o Specific approval is needed to use the Fund's auditors for tax services not denoted as pre-approved, or to add a specific service subcategory as "pre-approved" ------------------------------------- ------------------------- SECTION III - POLICY DETAIL, CONTINUED ----------------------- --------------------------- ----------------------------------------------- SERVICE CATEGORY SERVICE CATEGORY SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES DESCRIPTION ----------------------- --------------------------- ----------------------------------------------- IV. OTHER SERVICES Services which are not o Business Risk Management support prohibited by the Rule, o Other control and regulatory A. SYNERGISTIC, if an officer of the Fund compliance projects UNIQUE QUALIFICATIONS determines that using the Fund's auditor to provide these services creates significant synergy in the form of efficiency, minimized disruption, the ability to maintain a desired level of confidentiality, or where the Fund's auditors posses unique or superior qualifications to provide these services, resulting in superior value and results for the Fund. ----------------------- --------------------------- ----------------------------------------------- --------------------------------------- ------------------------ AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------- -------------------------- o "One-time" pre-approval o A summary of for the fund fiscal year within all such services and a specified dollar limit related fees 			 (including comparison 			 to specified dollar 				 limits) reported quarterly. o Specific approval is needed to exceed the pre-approved dollar limits for these services (see general Audit Committee approval policy below for details on obtaining specific approvals) o Specific approval is needed to use the Fund's auditors for "Synergistic" or "Unique Qualifications" Other Services not denoted as pre-approved to the left, or to add a specific service subcategory as "pre-approved" ------------------------------------- -------------------------- SECTION III - POLICY DETAIL, CONTINUED ----------------------- ------------------------- ----------------------------------------------- SERVICE CATEGORY SERVICE CATEGORY SPECIFIC PROHIBITED SERVICE SUBCATEGORIES DESCRIPTION ----------------------- ------------------------- ----------------------------------------------- PROHIBITED SERVICES Services which result 1. Bookkeeping or other services in the auditors losing related to the accounting records or independence status financial statements of the audit under the Rule. client* 2. Financial information systems design and implementation* 3. Appraisal or valuation services, fairness* opinions, or contribution-in-kind reports 4. Actuarial services (i.e., setting actuarial reserves versus actuarial audit work)* 5. Internal audit outsourcing services* 6. Management functions or human resources 7. Broker or dealer, investment advisor, or investment banking services 8. Legal services and expert services unrelated to the audit 9. Any other service that the Public Company Accounting Oversight Board determines, by regulation, is impermissible ----------------------- ------------------------- ----------------------------------------------- ------------------------------------------- ------------------------------ AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------------- ------------------------------ o These services are not to be o A summary of all performed with the exception of the(*) services and related services that may be permitted fees reported at each if they would not be subject to audit regularly scheduled procedures at the audit client (as Audit Committee meeting defined in rule 2-01(f)(4)) level will serve as continual the firm providing the service. confirmation that has 				 not provided any restricted services. ------------------------------------------- ------------------------------ -------------------------------------------------------------------------------- GENERAL AUDIT COMMITTEE APPROVAL POLICY: o For all projects, the officers of the Funds and the Fund's auditors will each make an assessment to determine that any proposed projects will not impair independence. o Potential services will be classified into the four non-restricted service categories and the "Approval of Audit, Audit-Related, Tax and Other Services" Policy above will be applied. Any services outside the specific pre-approved service subcategories set forth above must be specifically approved by the Audit Committee. o At least quarterly, the Audit Committee shall review a report summarizing the services by service category, including fees, provided by the Audit firm as set forth in the above policy. -------------------------------------------------------------------------------- (2) Disclose the percentage of services described in each of paragraphs (b) through (d) of this Item that were approved by the audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X. N/A (f) If greater than 50 percent, disclose the percentage of hours expended on the principal accountants engagement to audit the registrant's financial statements for the most recent fiscal year that were attributed to work performed by persons other than the principal accountant's full-time, permanent employees. N/A (g) Disclose the aggregate non-audit fees billed by the registrants accountant for services rendered to the registrant, and rendered to the registrants investment adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant for each of the last two fiscal years of the registrant. N/A (h) Disclose whether the registrants audit committee of the board of trustees has considered whether the provision of non-audit services that were rendered to the registrants investment adviser (not including any subadviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. The Fund's audit committee of the Board of Trustees has considered whether the provision of non-audit services that were rendered to the Affiliates (as defined) that were not pre- approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS (a) If the registrant is a listed issuer as defined in Rule 10A-3 under the Exchange Act (17 CFR 240.10A-3), state whether or not the registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Exchange Act (15 U.S.C. 78c(a)(58)(A)). If the registrant has such a committee, however designated, identify each committee member. If the entire board of directors is acting as the registrant's audit committee as specified in Section 3(a)(58)(B) of the Exchange Act (15 U.S.C. 78c(a)(58)(B)), so state. N/A (b) If applicable, provide the disclosure required by Rule 10A-3(d) under the Exchange Act (17 CFR 240.10A-3(d)) regarding an exemption from the listing standards for audit committees. N/A ITEM 6. SCHEDULE OF INVESTMENTS. File Schedule of Investments in securities of unaffiliated issuers as of the close of the reporting period as set forth in 210.1212 of Regulation S-X [17 CFR 210.12-12], unless the schedule is included as part of the report to shareholders filed under Item 1 of this Form. Included in Item 1 ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. A closed-end management investment company that is filing an annual report on this Form N-CSR must, unless it invests exclusively in non-voting securities, describe the policies and procedures that it uses to determine how to vote proxies relating to portfolio securities, including the procedures that the company uses when a vote presents a conflict between the interests of its shareholders, on the one hand, and those of the company's investment adviser; principal underwriter; or any affiliated person (as defined in Section 2(a)(3) of the Investment Company Act of 1940 (15 U.S.C. 80a-2(a)(3)) and the rules thereunder) of the company, its investment adviser, or its principal underwriter, on the other. Include any policies and procedures of the company's investment adviser, or any other third party, that the company uses, or that are used on the company's behalf, to determine how to vote proxies relating to portfolio securities. Not applicable to open-end management investment companies. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. (a) If the registrant is a closed-end management investment company that is filing an annual report on this Form N-CSR,provide the following information: (1) State the name, title, and length of service of the person or persons employed by or associated with the registrant or an investment adviser of the registrant who are primarily responsible for the day-to-day management of the registrant's portfolio ("Portfolio Manager"). Also state each Portfolio Manager's business experience during the past 5 years. Not applicable to open-end management investment companies. ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS. (a) If the registrant is a closed-end management investment company, in the following tabular format, provide the information specified in paragraph (b) of this Item with respect to any purchase made by or on behalf of the registrant or any affiliated purchaser, as defined in Rule 10b-18(a)(3) under the Exchange Act (17 CFR 240.10b-18(a)(3)), of shares or other units of any class of the registrant's equity securities that is registered by the registrant pursuant to Section 12 of the Exchange Act (15 U.S.C. 781). Not applicable to open-end management investment companies. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. Describe any material changes to the procedures by which shareholders may recommend nominees to the registrant's board of directors, where those changes were implemented after the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R(17 CFR 229.407)(as required by Item 22(b)(15)) of Schedule 14A (17 CFR 240.14a-101), or this Item. There have been no material changes to the procedures by which the shareholders may recommend nominees to the registrant's board of directors since the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R of Schedule 14(A) in its definitive proxy statement, or this item. ITEM 11. CONTROLS AND PROCEDURES. (a) Disclose the conclusions of the registrant's principal executive and principal financials officers, or persons performing similar functions, regarding the effectiveness of the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Act (17 CFR 270.30a-3(c))) as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the Act (17 CFR 270.30(a)-3(b) and Rules 13a-15(b) or 15d-15(b) under the Exchange Act (17 CFR 240.13a-15(b) or 240.15d-15(b)). The registrant's principal executive officer and principal financial officer have concluded that the registrant's disclosure controls and procedures are effective based on the evaluation of these controls and procedures as of a date within 90 days of the filing date of this report. (b) Disclose any change in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17CFR 270.30a-3(d)) that occured during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. There were no significant changes in the registrant's internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. The registrant's principal executive officer and principal financial officer, however, voluntarily are reporting the following information: In August of 2006 the registrant's investment adviser enhanced its internal procedures for reporting performance information required to be included in prospectuses. Those enhancements involved additional internal controls over the appropriateness of performance data generated for this purpose. Such enhancements were made following an internal review which identified prospectuses relating to certain classes of shares of a limited number of registrants where, inadvertently, performance information not reflecting the deduction of applicable sales charges was included. Those prospectuses were revised, and the revised prospectuses were distributed to shareholders. ITEM 12. EXHIBITS. (a) File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated. (1) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the registrant intends to satisfy the Item 2 requirements through filing of an exhibit. (2) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2(a)) , exactly as set forth below: Filed herewith. SIGNATURES [See General Instruction F] Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) Pioneer Series Trust V By (Signature and Title)* /s/ Lisa M. Jones Lisa M. Jones, President & Chief Executive Officer Date April 29, 2015 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By (Signature and Title)* /s/ Lisa M. Jones Lisa M. Jones, President & Chief Executive Officer Date April 29, 2015 By (Signature and Title)* /s/ Mark Bradley Mark Bradley, Treasurer & Chief Accounting & Financial Officer Date April 29, 2015 * Print the name and title of each signing officer under his or her signature.