OMB APPROVAL OMB Number: 3235-0570 Expires: August 31, 2013 Estimated average burden hours per response.....18.9 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 811-10395 Pioneer Series Trust VII (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: October 31 Date of reporting period: November 1, 2012 through April 30, 2013 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 SHAREOWNERS. Pioneer Global High Yield Fund -------------------------------------------------------------------------------- Semiannual Report | April 30, 2013 -------------------------------------------------------------------------------- Ticker Symbols: Class A PGHYX Class B PGHBX Class C PGYCX Class Y GHYYX Class Z PGHZX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents Letter to Shareowners 2 Portfolio Management Discussion 4 Portfolio Summary 9 Prices and Distributions 10 Performance Update 11 Comparing Ongoing Fund Expenses 16 Schedule of Investments 18 Financial Statements 56 Notes to Financial Statements 65 Approval of Investment Advisory Agreement 77 Trustees, Officers and Service Providers 81 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 1 President's Letter Dear Shareowner, Pioneer continues to see only modest economic growth in the U.S. Employment continues to rise, albeit slowly, and we believe it will continue to do so in 2013, barring a negative shock to the system. The housing and auto sectors continue to recover, benefiting from record-low interest rates. Banks' willingness to lend to consumers and businesses also continues to rise, broad measures of inflation remain subdued, and, if the weather cooperates in 2013, food prices should come back down. And, while corporate profit growth has slowed, profits remain high and many U.S. companies continue to both pay and increase dividends*. Offsetting some of these positives are the continued contraction of fiscal policy in Washington and a recessionary Europe. The Federal Reserve's aggressive monetary policy has driven Treasury yields to generational lows and supported investments in all financial assets, including equities and high-yield corporate bonds. For example, the Standard & Poor's 500 Index (the S&P 500), a broad measure of the U.S. stock market, returned 15.99% for the full calendar year ended December 31, 2012, and the Bank of America Merrill Lynch High Yield Master II Index (the High Yield Index), which measures the performance of high-yield corporate bonds, returned 15.59% for the same 12-month period. On the other hand, the Barclays Aggregate Bond Index (the Aggregate Index), which tracks the performance of a higher-quality bond universe, gained 4.22% for the 12 months ended December 31, 2012; the safer-still Barclays Government Credit Index (the Government/Credit Index) returned 4.82%; and 3-month Treasury bills, generally regarded as essentially "risk free" by the markets, returned just 0.09% in 2012. "Risky" assets outperformed again in the first quarter of 2013, as the S&P 500 returned 10.60% and the High Yield Index returned 2.89%. In contrast, the Aggregate Index returned -0.12% in the first quarter, the Government Credit Index returned -0.16%, and Treasury bills returned 0.02%. Despite generally improving economic conditions and a rising stock market, global economies and investors still face daunting challenges as 2013 moves forward, although we remain cautiously optimistic. U.S. fiscal policy remains unsettled, and we feel the U.S. government could be at risk of credit rating downgrades from one or more of the major ratings agencies if the uncertainties persist. The Federal Reserve continues to provide extraordinary support to the U.S. economy and the bond market, but will not do so indefinitely. Europe has made progress, but has not yet resolved its sovereign-debt/banking problem, nor has the region been able to exit recession. Japan recently has unveiled aggressive and unconventional monetary and fiscal policies, but the country * Dividends are not guaranteed. 2 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 continues to face issues such as high levels of debt as well as an aging population. China and other emerging economies, while generally in better shape than most "developed" markets, also face a range of challenges. While most of the risks outlined here are widely recognized and may already be "priced in" to the market, we believe investors should continue to expect market volatility. At Pioneer, we have long advocated the benefits of staying diversified and investing for the long term. And while diversification does not assure a profit or protect against loss in a declining market, we believe there are still opportunities for prudent investors to earn attractive returns. Our advice, as always, is to work closely with a trusted financial advisor to discuss your goals and work together to develop an investment strategy that meets your individual needs, keeping in mind that there is no single best strategy that works for every investor. Pioneer's investment teams have, since 1928, sought out attractive opportunities in global equity and bond markets, using in-depth research to identify undervalued individual securities, and using thoughtful risk management to construct portfolios which balance potential risks and reward in an ever-changing world. We encourage you to learn more about Pioneer and our time-tested approach to investing by consulting with your financial advisor or visiting us online at us.pioneerinvestments.com. We greatly appreciate your trust in us, and we thank you for investing with Pioneer. Sincerely, /s/ Daniel K. Kingsbury Daniel K. Kingsbury 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 High Yield Fund | Semiannual Report | 4/30/13 3 Portfolio Management Discussion | 4/30/13 High-yielding bonds, including emerging market and corporate debt, performed well in markets throughout the world during the six months ended April 30, 2013, as confidence grew among investors in the strength of the global economic recovery. In the following interview, Andrew Feltus discusses the market environment and the performance of Pioneer Global High Yield Fund during the six-month period. Mr. Feltus, a senior vice president and portfolio manager at Pioneer, is lead manager on the Fund, and Tracy Wright, a senior vice president and portfolio manager at Pioneer, is the assistant portfolio manager on the Fund. Together, they are responsible for the day-to-day management of the Fund. Q How did the Fund perform during the six months ended April 30, 2013? A Pioneer Global High Yield Fund's Class A shares returned 6.66% at net asset value during the six months ended April 30, 2013, while the Fund's benchmarks, the Bank of America Merrill Lynch (BofA ML) Global High Yield and Emerging Markets Plus Index and the BofA ML High Yield Master II Index, returned 6.50% and 7.26%, respectively. During the same period, the average return of the 556 mutual funds in Lipper's High Current Yield Funds category was 6.88%. Q How would you describe the investment environment in the high-yield fixed-income market during the six months April 30, 2013? A The six-month period saw a good environment for investing in lower-rated, higher-yielding debt in general, led by U.S. high-yield corporate bonds and emerging market debt. The six-month period began in November 2012 in the midst of a rally triggered by growing investor confidence that a series of actions taken by central banks in the United States, Europe and China would help stimulate greater growth in the global economy. Higher-yielding, credit-sensitive fixed-income securities generated solid returns, outperforming U.S. Treasuries and other higher-quality, but low-yielding, investments. The rally had begun in August 2012 when the new leader of the European Central Bank (ECB) declared that the bank would do "whatever it takes" to protect the European Union and the euro currency from the effects of the sovereign-debt problems plaguing several European nations. Subsequent to the ECB's announcement, the U.S. Federal Reserve Board (the Fed) announced its third round of quantitative easing aimed at encouraging lower interest rates through the purchases of mortgage-backed and other government securities in the open market. In addition, Chinese officials 4 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 announced that they would lower short-term interest rates to stimulate growth. Strong growth trends in select emerging markets added to the growing market confidence. During the first quarter of 2013, global economic data was somewhat mixed, but the markets still took encouragement when a new national government in Japan took office. The new Japanese government favors more-stimulative economic policies, including an increasingly accommodative monetary stance by the Bank of Japan, to which a new governor was appointed. In the United States, meanwhile, improvements in the manufacturing and housing sectors as well as the nation's unemployment rate strengthened confidence. While investors did worry about the effects of relentless partisan fighting in Washington over fiscal matters, including disputes over the nation's debt ceiling, tax rates and spending policies, a series of temporary measures agreed to by Congress and the President in the first weeks of the new year calmed fears enough to allow the rally in credit- sensitive securities to continue through the end of the period. Investors also appeared to take comfort from signs of increased fiscal consolidation by the U.S. government at a time when the private sector appeared to be strengthening. Q How did you manage the Fund in that environment and how did your investment strategies affect the Fund's performance during the six months ended April 30, 2013? A The Fund's emphasis on the credit sectors - notably high-yield corporates and emerging market corporates - helped drive solid absolute returns during the six-month period. A portfolio underweight to higher-quality securities, including U.S. Treasuries and emerging market sovereign debt, supported results. However, our decision to underweight the portfolio to the euro currency, given our concerns about underlying fundamentals, held back benchmark-relative results as the euro appreciated against other currencies during the six-month period. The euro's strength during the period derived mainly from the higher yields related to the sovereign-debt problems in the region, which attracted some investors. The Fund's out-of-benchmark positioning in floating-rate bank loans contributed to results on an absolute basis, even though the performance of the asset class trailed that of fixed-rate, high-yielding bonds. We invested the Fund in bank loans because they offer more protection than fixed-rate securities against the potential risk of rising market interest rates. We also like bank loans' senior position in the corporate debt structure, which means that bank-loan holders would be the first to be paid in any corporate restructuring. To further protect the Fund against the potential of rising Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 5 market interest rates, we kept the portfolio's duration well below that of the BofA ML Global High Yield and Emerging Markets Plus (GHY and EMP) Index. On April 30, 2013, the Fund's effective duration was 3.25 years, compared with about 4.7 years for the BofA ML GHY and EMP Index. Duration is intended to reflect a portfolio's price sensitivity to changes in interest rates, and lower durations are less sensitive to interest-rate changes than higher durations. The Fund's shorter duration did not help benchmark-relative results during the six-month period, however, as market interest rates generally declined. Despite the performance setback, we continue to think that a shorter-duration stance is a prudent way to reduce the Fund's overall interest-rate risk in the current low-rate environment, which will come to an end at some point. In the emerging markets, the Fund's performance was helped by portfolio exposures to the currency of Mexico and to corporate bonds in the Philippines during the six-month period. We have taken profits and reduced the Fund's position in the Philippines, while we have added to the portfolio's exposure to Mexico. We also have added portfolio exposures to the higher-yielding currencies of Nigeria, Russia and Romania. Q Which individual investments had the biggest effect on the Fund's performance during the six months ended April 30, 2013? A Emerging market bonds performed quite well for the Fund during the period, with exposure to local government bonds in the Philippines faring particularly well; smaller Fund positions in local government bonds from Nigeria and sovereign bonds from Ukraine also contributed to returns. Among emerging corporate bonds, the Fund enjoyed healthy gains from holdings of bonds of two Brazilian beef companies: Minerva and Marfrig. Both companies grew earnings as the price of beef rose and exports increased. Other Latin American corporate bonds in the portfolio that performed strongly during the period included the debt of Banco Galicia, a financial institution in Argentina, and of two Mexico-based materials companies, mining company Vedanta Resources and global building materials company CEMEX. In Europe, the Fund's investment in the corporate bonds of Ono Cable, a Spanish telecommunication services provider, gained in value during the period as the company demonstrated the ability to execute its business plan in a weak local economy. Among the Fund's domestic corporate holdings, the convertible bond of Chesapeake Energy appreciated in value during the six-month period as the company strengthened its balance sheet and changed chief executive officers. 6 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Underperforming holdings in the portfolio included the bonds of Mexican home-builders Urbi, Homex and Grupo Geo. The bonds experienced price losses during the period as each of the companies dealt with problems in the Mexican home-building industry brought about by new government housing policies. Together, the bonds represented only a small position in the Fund's overall portfolio. We have sold the Grupo Geo bonds, but have retained the other two positions. A holding of the debt of Codere, a Spanish firm with extensive gambling operations in Europe and Latin America, also hurt the Fund's relative performance as the debt declined in value due to problems with the company's operations in Argentina. Another detractor was the Fund's investment in the securities issued by Suntech, a Chinese solar energy equipment company that defaulted on its debt in March 2013. We have reduced the Fund's position in the Suntech bonds. Q Did the use of derivatives affect the Fund's performance during the six months ended April 30, 2013? A The Fund invested in currency forward contracts during the period to reduce the risks posed by changes in the relative values of different currencies. The use of the derivatives had a minimal impact on Fund performance. Q What is your investment outlook? A We believe global economies will continue to grow, although at modest pace, allowing the world's major central banks, including the Fed, to maintain their accommodative, low-interest-rate policies. That should create a good environment for credit-sensitive securities, in particular. Our outlook is not so optimistic for very high-quality, lower-yielding government securities, including U.S. Treasuries. Their prices appear high, and they are realizing negative yields when inflation is taken into consideration ("real yields"). At some point, market interest rates will start rising, and when that happens, Treasury values will suffer and potentially affect other sectors of the bond market. To help mitigate the risks of rising interest rates, we intend to keep the Fund's duration below that of the BofA ML GHY and EMP Index benchmark. To further reduce the potential effects of rising market interest rates, we also have maintained out-of-benchmark portfolio allocations to bank loans and event-linked (catastrophe) bonds issued by insurance companies. Both bank loans and catastrophe bonds offer floating interest rates, which would rise along with market interest rates. In addition, we have increased the Fund's exposure to higher-yielding emerging market currencies, where we see good potential as the economic prospects in the emerging markets continue to improve. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 7 Going forward, we think individual security selection is likely to become even more important to generating solid performance in the fixed-income market. We believe that should play to Pioneer's strengths, as we place great emphasis on the analysis of the business fundamentals and credit- worthiness of individual companies. We intend to focus on fundamental research and to continue to maintain a well-diversified* portfolio of higher-yielding investments. * Diversification does not assure a profit nor protect against loss in a declining market. Please refer to the Schedule of Investments on pages 18-55 for a full listing of Fund securities. Investments in high-yield or lower-rated securities are subject to greater-than- average risk. 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. Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates, economic, and political conditions. 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 mortgage-backed securities will be paid off early if falling interest rates prompt homeowners to refinance their mortgages. 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 associated with falling interest rates. 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. 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. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. 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. These statements should not be relied upon for any other purposes. 8 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Portfolio Summary | 4/30/13 Portfolio Quality -------------------------------------------------------------------------------- (As a percentage of long-term securities, based on S&P ratings) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] AAA 0.8% AA 0.2% A 1.4% BBB 9.4% BB 20.4% B 43.8% CCC 13.0% Not Rated 8.3% Cash Equivalents 2.7% Bond ratings are ordered highest to lowest in portfolio. Based on Standard & Poor's measures, AAA (highest possible rating) through BBB are considered investment grade; BB or lower ratings are considered non-investment grade. Cash equivalents and some bonds may not be rated. Geographical Distribution -------------------------------------------------------------------------------- (As a percentage of long-term holdings) [THE FOLLOWING DATA WAS REPRESENTED AS A BAR CHART IN THE PRINTED MATERIAL] United States 50.5% Luxembourg 5.4% Cayman Islands 4.7% Netherlands 4.0% Mexico 3.9% Argentina 3.8% Ireland 3.6% United Kingdom 2.5% Brazil 1.8% Canada 1.5% China 1.4% Bermuda 1.3% Peru 1.2% Singapore 1.2% Australia 1.1% Indonesia 1.1% Other (individually less than 1%) 11.0% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)* 1. COMM 2000-C1 Mortgage Trust, Floating Rate Note, 8/15/33 (144A) 2.40% -------------------------------------------------------------------------------- 2. Minerva Luxembourg SA, 7.75%, 1/31/23 (144A) 1.26 -------------------------------------------------------------------------------- 3. Ford Motor Co., 4.25%, 11/15/16 0.97 -------------------------------------------------------------------------------- 4. Mexican Udibonos, 2.0%, 6/9/22 0.95 -------------------------------------------------------------------------------- 5. Marfrig Overseas, Ltd., 9.5%, 5/4/20 (144A) 0.90 -------------------------------------------------------------------------------- 6. Goldman Sachs Capital II, Floating Rate Note, 6/1/43 0.86 -------------------------------------------------------------------------------- 7. EP Energy LLC, 9.375%, 5/1/20 0.78 -------------------------------------------------------------------------------- 8. Alliance One International, Inc., 10.0%, 7/15/16 0.77 -------------------------------------------------------------------------------- 9. Basell Finance Co., BV, 8.1%, 3/15/27 (144A) 0.76 -------------------------------------------------------------------------------- 10. Nara Cable Funding, Ltd., 8.875%, 12/1/18 (144A) 0.76 -------------------------------------------------------------------------------- * The 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. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 9 Prices and Distributions | 4/30/13 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 4/30/13 10/31/12 -------------------------------------------------------------------------------- A $10.44 $10.13 -------------------------------------------------------------------------------- B $10.45 $10.14 -------------------------------------------------------------------------------- C $10.41 $10.10 -------------------------------------------------------------------------------- Y $10.26 $ 9.96 -------------------------------------------------------------------------------- Z $10.74 $10.43 -------------------------------------------------------------------------------- Distributions per Share: 11/1/12-4/30/13 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.3560 $-- $-- -------------------------------------------------------------------------------- B $0.3148 $-- $-- -------------------------------------------------------------------------------- C $0.3204 $-- $-- -------------------------------------------------------------------------------- Y $0.3650 $-- $-- -------------------------------------------------------------------------------- Z $0.3795 $-- $-- -------------------------------------------------------------------------------- Index Definition -------------------------------------------------------------------------------- The Bank of America (BofA) Merrill Lynch (ML) Global High Yield and Emerging Markets Plus Index is an unmanaged index that tracks the performance of the below and border-line investment-grade global debt markets denominated in the major developed market currencies. The index includes sovereign issuers rated BBB1 and lower along with corporate issuers rated BB1 and lower. There are no restrictions on issuer country of domicile. However, the bonds must be publicly issued in a developed market (i.e., investment-grade country). The BofA ML High Yield Master II Index is an unmanaged, commonly accepted measure of the performance of high-yield securities. 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 indices defined here pertain to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts appearing on pages 11-15. 10 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Performance Update | 4/30/13 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Global High Yield Fund at public offering price, compared to that of the Bank of America (BofA) Merrill Lynch (ML) High Yield Master II Index and the Bank of America (BofA) Merrill Lynch (ML) Global High Yield and Emerging Markets Plus Index. Average Annual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- Net Asset Public Offering Period Value (NAV) Price (POP) -------------------------------------------------------------------------------- 10 Years 9.21% 8.71% 5 Years 8.02 7.04 1 Year 12.93 7.83 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2013) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.10% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment BofA ML Global High Yield Pioneer Global BofA ML High Yield and Emerging Markets High Yield Fund Master II Index Plus Index 4/30/2003 $ 9,550 $ 10,000 $ 10,000 4/30/2004 $ 11,235 $ 11,474 $ 11,493 4/30/2005 $ 12,742 $ 12,216 $ 12,684 4/30/2006 $ 14,220 $ 13,324 $ 13,958 4/30/2007 $ 16,158 $ 14,978 $ 15,773 4/30/2008 $ 15,671 $ 14,854 $ 16,046 4/30/2009 $ 11,102 $ 12,672 $ 13,763 4/30/2010 $ 17,957 $ 18,273 $ 19,304 4/30/2011 $ 20,699 $ 20,712 $ 21,893 4/30/2012 $ 20,409 $ 21,778 $ 22,966 4/30/2013 $ 23,047 $ 24,836 $ 26,399 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 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. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 11 Performance Update | 4/30/13 Class B Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Global High Yield Fund, compared to that of the Bank of America (BofA) Merrill Lynch (ML) High Yield Master II Index and the Bank of America (BofA) Merrill Lynch (ML) Global High Yield and Emerging Markets Plus Index. Average Annual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- Life-of-class (11/21/03) 7.49% 7.49% 5 Years 7.21 7.21 1 Year 12.02 8.02 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2013) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.91% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment BofA ML Global High Yield Pioneer Global BofA ML High Yield and Emerging Markets High Yield Fund Master II Index Plus Index 4/30/2003 $ 10,000 $ 10,000 $ 10,000 4/30/2004 $ 10,277 $ 11,474 $ 11,493 4/30/2005 $ 11,563 $ 12,216 $ 12,684 4/30/2006 $ 12,811 $ 13,324 $ 13,958 4/30/2007 $ 14,430 $ 14,978 $ 15,773 4/30/2008 $ 13,879 $ 14,854 $ 16,046 4/30/2009 $ 9,745 $ 12,672 $ 13,763 4/30/2010 $ 15,660 $ 18,273 $ 19,304 4/30/2011 $ 17,923 $ 20,712 $ 21,893 4/30/2012 $ 17,545 $ 21,778 $ 22,966 4/30/2013 $ 19,654 $ 24,836 $ 26,399 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. "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. "If Redeemed" returns reflect the deduction of applicable contingent deferred sales charge (CDSC). The maximum CDSC for Class B shares is 4% and declines over five years. For more complete information, please see the prospectus. 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 taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 12 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Performance Update | 4/30/13 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Global High Yield Fund, compared to that of the Bank of America (BofA) Merrill Lynch (ML) High Yield Master II Index and the Bank of America (BofA) Merrill Lynch (ML) Global High Yield and Emerging Markets Plus Index. Average Annual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- Life-of-class (11/21/03) 7.47% 7.47% 5 Years 7.29 7.29 1 Year 12.09 12.09 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2013) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.78% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment BofA ML Global High Yield Pioneer Global BofA ML High Yield and Emerging Markets High Yield Fund Master II Index Plus Index 11/30/2003 $ 10,000 $ 10,000 $ 10,000 4/30/2004 $ 10,211 $ 11,474 $ 11,493 4/30/2005 $ 11,487 $ 12,216 $ 12,684 4/30/2006 $ 12,724 $ 13,324 $ 13,958 4/30/2007 $ 14,343 $ 14,978 $ 15,773 4/30/2008 $ 13,810 $ 14,854 $ 16,046 4/30/2009 $ 9,699 $ 12,672 $ 13,763 4/30/2010 $ 15,592 $ 18,273 $ 19,304 4/30/2011 $ 17,853 $ 20,712 $ 21,893 4/30/2012 $ 17,512 $ 21,778 $ 22,966 4/30/2013 $ 19,629 $ 24,836 $ 26,399 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). The performance of Class C shares does not reflect the 1% front-end sales charge in effect prior to February 1, 2004. If you paid a 1% sales charge, your returns would be lower than those shown above. "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 Global High Yield Fund | Semiannual Report | 4/30/13 13 Performance Update | 4/30/13 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Pioneer Global High Yield Fund, compared to that of the Bank of America (BofA) Merrill Lynch (ML) High Yield Master II Index and the Bank of America (BofA) Merrill Lynch Global High Yield and Emerging Markets Plus Index. Average Annual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- 10 Years 9.28% 9.28% 5 Years 8.34 8.34 1 Year 13.27 13.27 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2013) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 0.80% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment BofA ML Global High Yield Pioneer Global BofA ML High Yield and Emerging Markets High Yield Fund Master II Index Plus Index 4/30/2003 $ 5,000,000 $ 5,000,000 $ 5,000,000 4/30/2004 $ 5,882,265 $ 5,736,945 $ 5,746,369 4/30/2005 $ 6,671,633 $ 6,108,106 $ 6,341,810 4/30/2006 $ 7,317,040 $ 6,661,867 $ 6,978,938 4/30/2007 $ 8,341,535 $ 7,488,774 $ 7,886,569 4/30/2008 $ 8,138,611 $ 7,426,792 $ 8,023,011 4/30/2009 $ 5,794,185 $ 6,335,837 $ 6,881,655 4/30/2010 $ 9,386,624 $ 9,136,528 $ 9,651,793 4/30/2011 $ 10,833,958 $ 10,355,795 $ 10,946,641 4/30/2012 $ 10,723,319 $ 10,888,995 $ 11,482,837 4/30/2013 $ 12,145,833 $ 12,417,772 $ 13,199,476 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 Class Y shares for periods prior to the inception of Class Y shares on December 28, 2005, reflects 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 on December 28, 2005, would have been higher than the performance shown. 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. 14 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Performance Update | 4/30/13 Class Z Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Global High Yield Fund, compared to that of the Bank of America (BofA) Merrill Lynch (ML) High Yield Master II Index and the Bank of America (BofA) Merrill Lynch Global High Yield and Emerging Markets Plus Index. Average Annual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- 10 Years 9.67% 9.67% 5 Years 8.70 8.70 1 Year 13.17 13.17 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2013) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 0.88% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment BofA ML Global High Yield Pioneer Global BofA ML High Yield and Emerging Markets High Yield Fund Master II Index Plus Index 4/30/2003 $ 10,000 $ 10,000 $ 10,000 4/30/2004 $ 11,765 $ 11,474 $ 11,493 4/30/2005 $ 13,343 $ 12,216 $ 12,684 4/30/2006 $ 14,891 $ 13,324 $ 13,958 4/30/2007 $ 16,921 $ 14,978 $ 15,773 4/30/2008 $ 16,594 $ 14,854 $ 16,046 4/30/2009 $ 12,043 $ 12,672 $ 13,763 4/30/2010 $ 19,490 $ 18,273 $ 19,304 4/30/2011 $ 22,556 $ 20,712 $ 21,893 4/30/2012 $ 22,247 $ 21,778 $ 22,966 4/30/2013 $ 25,176 $ 24,836 $ 26,399 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 Class Z shares for periods prior to the inception of Class Z shares on July 6, 2007, reflects 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 Z shares, the performance for Class Z shares prior to their inception on July 6, 2007, would have been higher than the performance shown. Class Z 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. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 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 Global High Yield Fund Based on actual returns from November 1, 2012, through April 30, 2013. -------------------------------------------------------------------------------------------------------- Share Class A B C Y Z -------------------------------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 $1,000.00 $1,000.00 Value on 11/1/12 -------------------------------------------------------------------------------------------------------- Ending Account $1,066.60 $1,062.30 $1,063.20 $1,067.70 $1,067.00 Value (after expenses) on 4/30/13 -------------------------------------------------------------------------------------------------------- Expenses Paid $ 5.64 $ 9.97 $ 9.26 $ 4.15 $ 4.46 During Period* -------------------------------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.10%, 1.95%, 1.81%, 0.81%, and 0.87% for Class A, Class B, Class C, Class Y and Class Z shares, respectively multiplied by the average account value over the period, multiplied by 181/365 (to reflect the partial year period). 16 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 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 Global High Yield Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from November 1, 2012, through April 30, 2013. ------------------------------------------------------------------------------------------------------- Share Class A B C Y Z ------------------------------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 $1,000.00 $1,000.00 Value on 11/1/12 ------------------------------------------------------------------------------------------------------- Ending Account $1,019.34 $1,015.12 $1,015.82 $1,020.78 $1,020.48 Value (after expenses) on 4/30/13 ------------------------------------------------------------------------------------------------------- Expenses Paid $ 5.51 $ 9.74 $ 9.05 $ 4.06 $ 4.36 During Period* ------------------------------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.10%, 1.95%,1.81%, 0.81%, and 0.87% for Class A, Class B, Class C, Class Y and Class Z shares, respectively multiplied by the average account value over the period, multiplied by 181/365 (to reflect the partial year period). Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 17 Schedule of Investments | 4/30/13 (unaudited) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- CONVERTIBLE CORPORATE BONDS -- 5.8% ENERGY -- 1.5% Oil & Gas Drilling -- 0.1% 2,475,000 NR/NR Vantage Drilling Co., 7.875%, 9/1/42 $ 2,802,938 --------------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 0.7% 4,130,000 BB-/Ba3 Chesapeake Energy Corp., 2.5%, 5/15/37 $ 3,944,150 9,000,000 NR/NR Cobalt International Energy, Inc., 2.625%, 12/1/19 10,063,125 -------------- $ 14,007,275 --------------------------------------------------------------------------------------------------------- Coal & Consumable Fuels -- 0.7% 14,830,000 B+/NR Alpha Appalachia Holdings, Inc., 3.25%, 8/1/15 $ 14,088,500 1,305,000 CC/B2 James River Coal Co., 3.125%, 3/15/18 238,162 -------------- $ 14,326,662 -------------- Total Energy $ 31,136,875 --------------------------------------------------------------------------------------------------------- MATERIALS -- 0.6% Construction Materials -- 0.6% 10,300,000 NR/NR Cemex SAB de CV, 3.75%, 3/15/18 $ 13,570,250 --------------------------------------------------------------------------------------------------------- Forest Products -- 0.0%+ 12,150,000 NR/WR Sino-Forest Corp., 5.0%, 8/1/13 $ 60,750 -------------- Total Materials $ 13,631,000 --------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.1% Electrical Components & Equipment -- 0.1% 1,250,000 B/B2 General Cable Corp., 4.5%, 11/15/29 (Step) $ 1,521,094 -------------- Total Capital Goods $ 1,521,094 --------------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 0.9% Automobile Manufacturers -- 0.9% 12,029,000 BB+/Baa3 Ford Motor Co., 4.25%, 11/15/16 $ 19,802,741 -------------- Total Automobiles & Components $ 19,802,741 --------------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 0.3% Homebuilding -- 0.3% 4,640,000 B/B2 KB Home, 1.375%, 2/1/19 $ 5,379,500 -------------- Total Consumer Durables & Apparel $ 5,379,500 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 18 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 0.1% Tobacco -- 0.1% 1,635,000 CCC+/Caa2 Alliance One International, Inc., 5.5%, 7/15/14 $ 1,649,306 -------------- Total Food, Beverage & Tobacco $ 1,649,306 --------------------------------------------------------------------------------------------------------- REAL ESTATE -- 0.1% Real Estate Operating Companies -- 0.1% 2,805,000 B/B3 Forest City Enterprises, Inc., 4.25%, 8/15/18 $ 3,167,897 -------------- Total Real Estate $ 3,167,897 --------------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 0.5% Internet Software & Services -- 0.1% 3,485,000 NR/NR WebMD Health Corp., 2.5%, 1/31/18 $ 3,193,131 --------------------------------------------------------------------------------------------------------- Application Software -- 0.4% 1,025,000 NR/NR Mentor Graphics Corp., 4.0%, 4/1/31 $ 1,208,859 6,365,000 BB-/NR Nuance Communications, Inc., 2.75%, 11/1/31 6,647,447 -------------- $ 7,856,306 -------------- Total Software & Services $ 11,049,437 --------------------------------------------------------------------------------------------------------- TECHNOLOGY HARDWARE & EQUIPMENT -- 0.5% Computer Storage & Peripherals -- 0.4% 6,435,000 BB/NR SanDisk Corp., 1.5%, 8/15/17 $ 8,092,012 --------------------------------------------------------------------------------------------------------- Electronic Components -- 0.1% 1,605,000 BB+/NR Vishay Intertechnology, Inc., 2.25%, 5/15/41 (144A) $ 1,510,706 -------------- Total Technology Hardware & Equipment $ 9,602,718 --------------------------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 1.2% Semiconductor Equipment -- 0.6% 3,400,000 BBB-/Baa1 Lam Research Corp., 1.25%, 5/15/18 $ 3,876,000 5,515,000 BBB-/NR Novellus Systems, Inc., 2.625%, 5/15/41 8,155,306 -------------- $ 12,031,306 --------------------------------------------------------------------------------------------------------- Semiconductors -- 0.6% 4,650,000 NR/NR JA Solar Holdings Co., Ltd., 4.5%, 5/15/13 $ 4,394,250 10,750,000 NR/NR ReneSola, Ltd., 4.125%, 3/15/18 (144A) 5,529,531 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 19 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Semiconductors -- (continued) 2,182,000 NR/NR SunPower Corp., 4.75%, 4/15/14 $ 2,216,094 5,230,000 NR/NR Suntech Power Holdings Co., Ltd., 3.0%, 3/15/13 (c) 1,451,325 -------------- $ 13,591,200 -------------- Total Semiconductors & Semiconductor Equipment $ 25,622,506 --------------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE CORPORATE BONDS (Cost $114,366,901) $ 122,563,074 --------------------------------------------------------------------------------------------------------- Shares --------------------------------------------------------------------------------------------------------- PREFERRED STOCKS -- 1.3% ENERGY -- 0.2% Oil & Gas Storage & Transportation -- 0.2% 131,100 7.62 B+/Ba2 NuStar Logistics LP, Floating Rate Note, 1/15/43 $ 3,605,250 -------------- Total Energy $ 3,605,250 --------------------------------------------------------------------------------------------------------- CONSUMER SERVICES -- 0.1% Hotels, Resorts & Cruise Lines -- 0.1% 17,350 NR/NR Perseus Holding Corp., 14.0%, 4/15/14 (144A) $ 1,431,375 -------------- Total Consumer Services $ 1,431,375 --------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.6% Other Diversified Financial Services -- 0.5% 355,600 8.12 CCC+/B3 GMAC Capital Trust I, Floating Rate Note, 2/15/40 $ 9,739,884 --------------------------------------------------------------------------------------------------------- Consumer Finance -- 0.1% 3,100 CCC+/B3 Ally Financial, Inc., 7.0% (Perpetual) (144A) $ 3,059,410 -------------- Total Diversified Financials $ 12,799,294 --------------------------------------------------------------------------------------------------------- INSURANCE -- 0.2% Reinsurance -- 0.2% 4,500,000 0.00 NR/NR Altair RE, Floating Rate Note, 4/30/16 $ 4,521,600 -------------- Total Insurance $ 4,521,600 --------------------------------------------------------------------------------------------------------- UTILITIES -- 0.2% Electric Utilities -- 0.2% 212,000 BB+/Ba1 PPL Capital Funding, Inc., 5.9%, 4/30/73 $ 5,562,880 -------------- Total Utilities $ 5,562,880 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 20 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Floating S&P/Moody's Shares Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- TOTAL PREFERRED STOCKS (Cost $24,757,855) $ 27,920,399 --------------------------------------------------------------------------------------------------------- CONVERTIBLE PREFERRED STOCK -- 0.0%+ BANKS -- 0.0%+ Diversified Banks -- 0.0%+ 445 BBB+/Ba1 Wells Fargo & Co., 7.5% (Perpetual) $ 587,289 --------------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE PREFERRED STOCK (Cost $467,249) $ 587,289 --------------------------------------------------------------------------------------------------------- COMMON STOCKS -- 0.9% ENERGY -- 0.1% Oil & Gas Drilling -- 0.1% 46,147 Rowan Companies Plc* $ 1,501,162 --------------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 0.0%+ 1 Norse Energy Corp ASA* $ 0 -------------- Total Energy $ 1,501,162 --------------------------------------------------------------------------------------------------------- MATERIALS -- 0.3% Diversified Metals & Mining -- 0.2% 6,615,974 Blaze Recycling & Metals LLC (Class A) Units (d)* $ 727,757 95,846 Freeport-McMoRan Copper & Gold, Inc. 2,916,594 -------------- $ 3,644,351 --------------------------------------------------------------------------------------------------------- Steel -- 0.1% 134,106 Vale SA (A.D.R.) $ 2,180,564 --------------------------------------------------------------------------------------------------------- Forest Products -- 0.0%+ 244,090 Ainsworth Lumber Co., Ltd.* $ 944,724 14,559,000 Sino-Forest Corp.* 72,795 -------------- $ 1,017,519 -------------- Total Materials $ 6,842,434 --------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.0%+ Building Products -- 0.0%+ 894 Panolam Holdings Co.* $ 715,200 -------------- Total Capital Goods $ 715,200 --------------------------------------------------------------------------------------------------------- TRANSPORTATION -- 0.2% Marine -- 0.2% 2,370,345 Horizon Lines, Inc.* $ 3,318,483 -------------- Total Transportation $ 3,318,483 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 21 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Floating S&P/Moody's Shares Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 0.0%+ Auto Parts & Equipment -- 0.0%+ 7,541 Lear Corp. $ 435,719 -------------- Total Automobiles & Components $ 435,719 --------------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 0.1% Leisure Products -- 0.1% 4,074,747 Emerald Plantation Holdings, Ltd.* $ 1,426,161 -------------- Total Consumer Durables & Apparel $ 1,426,161 --------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.2% Other Diversified Financial Services -- 0.2% 24,638 BTA Bank JSC (G.D.R.) (144A)* $ 17,914 33,500 Lorenz Re* 3,350,000 -------------- $ 3,367,914 -------------- Total Diversified Financials $ 3,367,914 --------------------------------------------------------------------------------------------------------- REAL ESTATE -- 0.0%+ Real Estate Development -- 0.0%+ 161,215 Newhall Land Development LLC* $ 411,098 -------------- Total Real Estate $ 411,098 --------------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 0.0%+ Data Processing & Outsourced Services -- 0.0%+ 33,046 Perseus Holdings, Ltd.* $ 82,615 -------------- Total Software & Services $ 82,615 --------------------------------------------------------------------------------------------------------- TOTAL COMMON STOCKS (Cost $27,195,514) $ 18,100,786 --------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------- Principal Amount ($) --------------------------------------------------------------------------------------------------------- ASSET BACKED SECURITIES -- 1.4% MATERIALS -- 0.1% Aluminum -- 0.1% 1,500,000 6.55 B-/B3 Security National Mortgage Loan Trust 2007-1, Floating Rate Note, 4/25/37 (144A) $ 1,470,306 --------------------------------------------------------------------------------------------------------- Steel -- 0.0%+ 448,469 0.29 CCC/Ca ACE Securities Corp Home Equity Loan Trust Series 2007-HE1, Floating Rate Note, 1/25/37 $ 151,012 The accompanying notes are an integral part of these financial statements. 22 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Steel -- (continued) 1,350,000 1.25 AA+/A3 Bear Stearns Asset Backed Securities I Trust 2004-BO1, Floating Rate Note, 10/25/34 $ 1,278,837 -------------- $ 1,429,849 -------------- Total Materials $ 2,900,155 --------------------------------------------------------------------------------------------------------- BANKS -- 0.7% Thrifts & Mortgage Finance -- 0.7% 921,817 1.48 CCC/Caa3 Amortizing Residential Collateral Trust 2002-BC1, Floating Rate Note, 1/25/32 $ 542,492 675,000 BB/NR CarNow Auto Receivables Trust 2012-1, 6.9%, 11/15/16 (144A) 676,930 8,090,000 0.40 CCC/Caa2 Carrington Mortgage Loan Trust Series 2007-FRE1, Floating Rate Note, 2/25/37 7,144,417 1,700,000 1.18 CCC/Caa1 Countrywide Asset-Backed Certificates, Floating Rate Note, 11/25/34 1,417,477 740,554 0.33 B-/B3 GSAMP Trust 2006-HE8, Floating Rate Note, 1/25/37 702,698 4,000,000 BBB/NR Leaf Receivables Funding 4 LLC, 5.5%, 2/20/22 (144A) 3,780,800 927,495 0.36 BB+/Ba1 RAMP Series 2006-RZ3 Trust, Floating Rate Note, 8/25/36 871,846 -------------- $ 15,136,660 -------------- Total Banks $ 15,136,660 --------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.6% Other Diversified Financial Services -- 0.2% 7,969,931 0.68 CCC/Caa1 Aircraft Finance Trust, Floating Rate Note, 5/15/24 (144A) $ 3,666,168 426,040 BB/NR Sierra Timeshare 2011-3 Receivables Funding LLC, 9.31%, 7/20/28 (144A) 441,725 -------------- $ 4,107,893 --------------------------------------------------------------------------------------------------------- Specialized Finance -- 0.4% 9,970,451 0.59 CCC+/Caa2 Lease Investment Flight Trust, Floating Rate Note, 7/15/31 $ 7,328,282 868,435 0.63 CCC+/Caa2 Lease Investment Flight Trust, Floating Rate Note, 7/15/31 638,300 -------------- $ 7,966,582 -------------- Total Diversified Financials $ 12,074,475 --------------------------------------------------------------------------------------------------------- TOTAL ASSET BACKED SECURITIES (Cost $26,788,446) $ 30,111,290 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 23 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- COLLATERALIZED MORTGAGE OBLIGATIONS -- 1.2% BANKS -- 0.5% Thrifts & Mortgage Finance -- 0.5% 186,361 6.85 B/NR COMM 2000-C1 Mortgage Trust, Floating Rate Note, 8/15/33 (144A) $ 185,932 1,700,000 NR/NR Extended Stay America Trust 2013-ESH MZ, 7.625%, 12/5/19 (144A) 1,831,988 373,485 5.67 NR/NR First Horizon Mortgage Pass-Through Trust 2004-6, Floating Rate Note, 11/25/34 352,777 752,300 5.73 B/NR GSR Mortgage Loan Trust 2004-3F, Floating Rate Note, 2/25/34 733,578 2,829,942 4.62 BB/Caa3 JP Morgan Mortgage Trust 2005-A1, Floating Rate Note, 2/25/35 2,360,520 4,315,000 BB/B1 Timberstar Trust, 7.53%, 10/15/36 (144A) 4,466,901 -------------- $ 9,931,696 -------------- Total Banks $ 9,931,696 --------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.2% Other Diversified Financial Services -- 0.0%+ 784,214 NR/Caa1 CSMC Mortgage-Backed Trust 2007-3, 5.0%, 4/25/37 $ 785,516 --------------------------------------------------------------------------------------------------------- Investment Banking & Brokerage -- 0.2% 3,450,000 6.94 BBB-/NR Bear Stearns Commercial Mortgage Sec Inc Series 2001-top2, Floating Rate Note, 2/15/35 (144A) $ 3,453,202 -------------- Total Diversified Financials $ 4,238,718 --------------------------------------------------------------------------------------------------------- REAL ESTATE -- 0.4% Mortgage REIT -- 0.4% 1,012,766 2.43 BBB-/B2 American Home Mortgage Investment Trust 2005-1, Floating Rate Note, 6/25/45 $ 974,336 1,502,000 5.14 CCC/B3 Credit Suisse First Boston Mortgage Securities Corp., Floating Rate Note, 10/15/39 (144A) 1,412,185 9,000,000 7.08 D/NR Credit Suisse First Boston Mortgage Securities Corp., Floating Rate Note, 12/15/35 (144A) 7,091,100 -------------- $ 9,477,621 -------------- Total Real Estate $ 9,477,621 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 24 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- GOVERNMENT -- 0.1% 19,261,114 1.28 NR/Aaa Government National Mortgage Association, Floating Rate Note, 10/16/52 (f) $ 1,095,726 -------------- Total Government $ 1,095,726 --------------------------------------------------------------------------------------------------------- TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $26,543,332) $ 24,743,761 --------------------------------------------------------------------------------------------------------- CORPORATE BONDS -- 72.2% ENERGY -- 8.6% Oil & Gas Drilling -- 1.2% 1,250,000 B/B3 Hercules Offshore, Inc., 10.5%, 10/15/17 (144A) $ 1,359,375 8,900,000 CCC+/Caa3 Ocean Rig UDW, Inc., 9.5%, 4/27/16 (144A) 9,389,500 6,395,000 B+/B2 Pioneer Energy Services Corp., 9.875%, 3/15/18 7,026,506 2,835,000 B/B1 Shelf Drilling Holdings, Ltd., 8.625%, 11/1/18 (144A) 3,033,450 3,765,000 BB-/B2 Unit Corp., 6.625%, 5/15/21 4,028,550 -------------- $ 24,837,381 --------------------------------------------------------------------------------------------------------- Oil & Gas Equipment & Services -- 0.2% 1,297,000 B/B3 Expro Finance Luxembourg SCA, 8.5%, 12/15/16 (144A) $ 1,384,548 54,000 NR/NR Green Field Energy Services, Inc., 13.25%, 11/15/16 (144A) 55,620 2,275,000 CCC/Caa2 Green Field Energy Services, Inc., 13.25%, 11/15/16 (144A) 2,343,250 -------------- $ 3,783,418 --------------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 4.9% 2,000,000 B-/B3 Carrizo Oil & Gas, Inc., 7.5%, 9/15/20 $ 2,170,000 2,870,000 B-/B3 Carrizo Oil & Gas, Inc., 8.625%, 10/15/18 3,178,525 4,740,000 B-/B3 Comstock Resources, Inc., 7.75%, 4/1/19 5,071,800 13,700,000 B/B2 EP Energy LLC, 9.375%, 5/1/20 15,960,500 2,080,000 B/B3 EPE Holdings LLC, 8.125%, 12/15/17 (144A) (PIK) 2,215,200 4,980,000 B-/Caa1 EPL Oil & Gas, Inc., 8.25%, 2/15/18 (144A) 5,353,500 3,260,000 B/NR GeoPark Latin America, Ltd., Agencia en Chile, 7.5%, 2/11/20 (144A) 3,365,950 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 25 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- (continued) 5,035,000 CCC/Caa1 Goodrich Petroleum Corp., 8.875%, 3/15/19 $ 5,286,750 4,990,000 CCC+/B3 Gulfport Energy Corp., 7.75%, 11/1/20 (144A) 5,376,725 6,250,000 CCC+/Caa1 Halcon Resources Corp., 8.875%, 5/15/21 (144A) 6,703,125 1,000,000 BBB-/Baa3 KazMunayGas National Co., JSC, 4.4%, 4/30/23 (144A) 1,010,000 5,215,000 B-/B3 Kodiak Oil & Gas Corp., 8.125%, 12/1/19 5,932,062 5,800,000 B/B2 Linn Energy LLC, 6.25%, 11/1/19 (144A) 6,061,000 12,850,000 B+/NR MIE Holdings Corp., 9.75%, 5/12/16 (144A) 13,942,250 NOK 12,000,000 NR/NR Norwegian Energy Co., AS, 10.25%, 4/27/16 2,087,098 NOK 10,500,000 NR/NR Norwegian Energy Co., AS, 12.9%, 11/20/14 1,884,760 2,840,000 B/B3 Oasis Petroleum, Inc., 6.5%, 11/1/21 3,124,000 1,920,000 B-/B3 Samson Investment Co., 9.75%, 2/15/20 (144A) 2,040,000 3,800,000 B-/B3 Stone Energy Corp., 7.5%, 11/15/22 4,161,000 2,919,000 B-/B3 Stone Energy Corp., 8.625%, 2/1/17 3,145,222 3,020,000 CCC+/Caa1 Talos Production LLC, 9.75%, 2/15/18 (144A) 2,974,700 CAD 2,775,000 B/NR Trilogy Energy Corp., 7.25%, 12/13/19 (144A) 2,864,090 -------------- $ 103,908,257 --------------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation -- 0.5% 2,030,000 7.00 BBB-/Baa2 Enterprise Products Operating LLC, Floating Rate Note, 6/1/67 $ 2,192,400 NOK 12,000,000 7.04 NR/NR Golar LNG Partners LP, Floating Rate Note, 10/12/17 2,120,950 6,220,000 BB+/Ba3 Sabine Pass Liquefaction LLC, 5.625%, 2/1/21 (144A) 6,437,700 950,000 3.32 BB/Ba1 Southern Union Co., Floating Rate Note, 11/1/66 827,688 -------------- $ 11,578,738 --------------------------------------------------------------------------------------------------------- Coal & Consumable Fuels -- 1.8% 815,000 B+/B2 Alpha Natural Resources, Inc., 6.0%, 6/1/19 $ 762,025 11,063,000 BB-/B1 Berau Capital Resources Pte, Ltd., 12.5%, 7/8/15 (144A) 11,782,095 3,750,000 BB-/B1 Berau Coal Energy Tbk PT, 7.25%, 3/13/17 (144A) 3,721,875 The accompanying notes are an integral part of these financial statements. 26 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Coal & Consumable Fuels -- (continued) 12,200,000 B/B2 Bumi Capital Pte, Ltd., 12.0%, 11/10/16 (144A) $ 10,461,500 1,900,000 NR/B1 Indo Energy Finance II BV, 6.375%, 1/24/23 (144A) 1,930,780 4,435,000 CCC+/B3 James River Coal Co., 7.875%, 4/1/19 1,840,525 2,706,000 B/B3 Murray Energy Corp., 10.25%, 10/15/15 (144A) 2,760,120 EURO 1,650,000 B-/B3 New World Resources NV, 7.875%, 1/15/21 (144A) 1,742,262 2,070,000 B-/B2 Penn Virginia Resource Partners LP, 8.25%, 4/15/18 2,209,725 -------------- $ 37,210,907 -------------- Total Energy $ 181,318,701 --------------------------------------------------------------------------------------------------------- MATERIALS -- 10.7% Commodity Chemicals -- 1.8% 11,343,000 BBB-/WR Basell Finance Co., BV, 8.1%, 3/15/27 (144A) $ 15,624,982 5,715,000 B-/NR Hexion US Finance Corp., 6.625%, 4/15/20 (144A) 5,957,888 EURO 2,500,000 CCC/B3 KP Germany Erste GmbH, 11.625%, 7/15/17 (144A) 3,717,793 11,320,000 BB-/B1 Rain CII Carbon LLC, 8.0%, 12/1/18 (144A) 12,084,100 615,000 B-/Caa1 US Coatings Acquisition, Inc., 7.375%, 5/1/21 (144A) 656,512 -------------- $ 38,041,275 --------------------------------------------------------------------------------------------------------- Diversified Chemicals -- 0.7% EURO 10,935,000 B-/Caa1 INEOS Group Holdings SA, 7.875%, 2/15/16 (144A) $ 14,622,082 800,000 B-/Caa1 INEOS Group Holdings SA, 8.5%, 2/15/16 (144A) 813,000 -------------- $ 15,435,082 --------------------------------------------------------------------------------------------------------- Fertilizers & Agricultural Chemicals -- 0.1% 1,100,000 BB/NR EuroChem Mineral & Chemical Co OJSC via EuroChem GI, Ltd., 5.125%, 12/12/17 (144A) $ 1,126,400 --------------------------------------------------------------------------------------------------------- Construction Materials -- 1.2% 12,050,000 C/Caa3 AGY Holding Corp., 11.0%, 11/15/14 $ 6,205,750 4,275,000 B/NR Cemex Espana Luxembourg, 9.875%, 4/30/19 (144A) 4,894,875 9,006,000 B/NR Cemex Finance LLC, 9.5%, 12/14/16 (144A) 9,681,450 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 27 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Construction Materials -- (continued) 3,750,000 B/NR Cemex SAB de CV, 9.0%, 1/11/18 (144A) $ 4,087,500 -------------- $ 24,869,575 --------------------------------------------------------------------------------------------------------- Metal & Glass Containers -- 1.3% 4,105,000 B-/B3 AEP Industries, Inc., 8.25%, 4/15/19 $ 4,474,450 10,095,892 CCC+/Caa1 ARD Finance SA, 11.125%, 6/1/18 (144A) (PIK) 11,370,498 3,200,000 CCC+/B3 Ardagh Packaging Finance Plc, 7.0%, 11/15/20 (144A) 3,384,000 5,000,000 CCC+/B3 Ardagh Packaging Finance Plc, 9.125%, 10/15/20 (144A) 5,650,000 EURO 2,100,000 CCC+/B3 Ardagh Packaging Finance Plc, 9.25%, 10/15/20 (144A) 3,067,130 -------------- $ 27,946,078 --------------------------------------------------------------------------------------------------------- Diversified Metals & Mining -- 1.9% 10,175,000 CCC/Caa2 Midwest Vanadium Pty, Ltd., 11.5%, 2/15/18 (144A) $ 6,613,750 11,725,000 B-/Caa1 Mirabela Nickel, Ltd., 8.75%, 4/15/18 (144A) 9,966,250 5,300,000 CCC+/B3 Molycorp, Inc., 10.0%, 6/1/20 5,194,000 1,700,000 B+/B2 Mongolian Mining Corp., 8.875%, 3/29/17 (144A) 1,740,460 1,560,000 B/Caa1 Prince Mineral Holding Corp., 11.5%, 12/15/19 (144A) 1,739,400 12,660,000 BB/Ba3 Vedanta Resources Plc, 8.25%, 6/7/21 (144A) 13,799,400 1,080,000 BB/Ba3 Vedanta Resources Plc, 9.5%, 7/18/18 (144A) 1,236,600 -------------- $ 40,289,860 --------------------------------------------------------------------------------------------------------- Steel -- 2.7% 9,410,000 CCC/Caa2 Essar Steel Algoma, Inc., 9.875%, 6/15/15 (144A) $ 7,433,900 11,475,000 B/Caa1 Ferrexpo Finance Plc, 7.875%, 4/7/16 (144A) 11,388,938 4,340,000 B/B3 JMC Steel Group, Inc., 8.25%, 3/15/18 (144A) 4,540,725 1,800,000 BB-/Ba2 Metalloinvest Finance, Ltd., 5.625%, 4/17/20 (144A) 1,797,390 10,460,000 NR/Ba2 Metalloinvest Finance, Ltd., 6.5%, 7/21/16 (144A) 11,061,450 7,620,000 NR/B3 Metinvest BV, 10.25%, 5/20/15 (144A) 8,134,350 11,550,000 NR/B3 Metinvest BV, 8.75%, 2/14/18 (144A) 11,781,000 -------------- $ 56,137,753 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 28 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Forest Products -- 0.1% 4,405,131 NR/NR Emerald Plantation Holdings, Ltd., 6.0%, 1/15/20 $ 2,753,207 --------------------------------------------------------------------------------------------------------- Paper Products -- 0.9% 13,490,000 B+/B1 Grupo Papelero Scribe SA de CV, 8.875%, 4/7/20 (144A) $ 13,355,100 5,685,000 BB-/Ba3 Resolute Forest Products, Inc., 5.875%, 5/15/23 (144A) 5,613,938 -------------- $ 18,969,038 -------------- Total Materials $ 225,568,268 --------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 5.5% Aerospace & Defense -- 0.7% 3,180,000 BB/Ba2 Bombardier, Inc., 6.125%, 1/15/23 (144A) $ 3,438,375 3,070,000 BB/B1 DigitalGlobe, Inc., 5.25%, 2/1/21 (144A) 3,100,700 5,408,000 B-/B2 DynCorp International, Inc., 10.375%, 7/1/17 5,340,400 1,995,000 CCC+/Caa1 Silver II Borrower, 7.75%, 12/15/20 (144A) 2,139,638 -------------- $ 14,019,113 --------------------------------------------------------------------------------------------------------- Building Products -- 0.2% 4,050,000 NR/Ba2 China Liansu Group Holdings, Ltd., 7.875%, 5/13/16 (144A) $ 4,313,250 --------------------------------------------------------------------------------------------------------- Construction & Engineering -- 1.3% 6,900,000 B/B2 Abengoa Finance SAU, 8.875%, 11/1/17 (144A) $ 6,624,000 2,230,000 BB-/Ba3 Dycom Investments, Inc., 7.125%, 1/15/21 2,408,400 7,900,000 B+/B1 Empresas ICA SAB de CV, 8.9%, 2/4/21 (144A) 7,663,000 9,175,000 CC/Caa3 New Enterprise Stone & Lime Co., Inc., 11.0%, 9/1/18 6,078,438 4,400,000 BB-/NR OAS Investments GmbH, 8.25%, 10/19/19 (144A) 4,606,800 -------------- $ 27,380,638 --------------------------------------------------------------------------------------------------------- Electrical Components & Equipment -- 0.4% EURO 2,000,000 B+/Ba2 Belden, Inc., 5.5%, 4/15/23 (144A) $ 2,698,837 4,120,000 B/B3 Coleman Cable, Inc., 9.0%, 2/15/18 4,459,900 1,540,000 B/B3 WireCo WorldGroup, Inc., 9.5%, 5/15/17 1,593,900 -------------- $ 8,752,637 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 29 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Industrial Conglomerates -- 0.7% 2,980,000 B+/B2 JB Poindexter & Co., Inc., 9.0%, 4/1/22 (144A) $ 3,132,725 EURO 1,600,000 BB-/Ba3 Mark IV Europe Lux SCA, 8.875%, 12/15/17 (144A) 2,286,860 1,200,000 CCC+/B3 Park-Ohio Industries, Inc., 8.125%, 4/1/21 1,323,000 7,300,000 BBB/Baa3 Votorantim Cimentos SA, 7.25%, 4/5/41 (144A) 8,303,750 -------------- $ 15,046,335 --------------------------------------------------------------------------------------------------------- Construction & Farm Machinery & Heavy Trucks -- 0.6% 8,405,000 CCC+/B3 Navistar International Corp., 8.25%, 11/1/21 $ 8,751,706 4,400,000 NR/NR OSX 3 Leasing BV, 9.25%, 3/20/15 (144A) 4,070,000 -------------- $ 12,821,706 --------------------------------------------------------------------------------------------------------- Industrial Machinery -- 1.1% 5,075,000 B/B2 Constellation Enterprises LLC, 10.625%, 2/1/16 (144A) $ 5,385,844 5,322,000 NR/WR Indalex Holding Corp., 11.5%, 2/1/14 (c) 39,915 5,080,000 B/Caa2 Liberty Tire Recycling, 11.0%, 10/1/16 (144A) 5,207,000 14,600,000 B/NR WPE International Cooperatief UA, 10.375%, 9/30/20 (144A) 13,359,000 -------------- $ 23,991,759 --------------------------------------------------------------------------------------------------------- Trading Companies & Distributors -- 0.5% 9,497,000 B-/B3 INTCOMEX, Inc., 13.25%, 12/15/14 $ 9,591,970 -------------- Total Capital Goods $ 115,917,408 --------------------------------------------------------------------------------------------------------- COMMERCIAL SERVICES & SUPPLIES -- 0.3% Environmental & Facilities Services -- 0.0%+ 6,510,000 NR/WR Old AII, Inc., 10.0%, 12/15/16 (e) $ 13,020 --------------------------------------------------------------------------------------------------------- Diversified Support Services -- 0.3% 6,365,000 B-/Caa1 ADS Tactical, Inc., 11.0%, 4/1/18 (144A) $ 6,333,175 -------------- Total Commercial Services & Supplies $ 6,346,195 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 30 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- TRANSPORTATION -- 2.8% Air Freight & Logistics -- 0.3% 7,061,000 D/C CEVA Group Plc, 11.5%, 4/1/18 (144A) (c) $ 4,589,650 2,445,000 C/Caa2 CEVA Group Plc, 11.625%, 10/1/16 (144A) 2,527,519 -------------- $ 7,117,169 --------------------------------------------------------------------------------------------------------- Airlines -- 0.7% 1,213,302 BB+/Ba2 Continental Airlines 1998-1 Class B Pass Through Trust, 6.748%, 3/15/17 $ 1,277,001 2,125,000 BBB-/Ba2 Continental Airlines 2012-1 Class B Pass Through Trust, 6.25%, 4/11/20 2,231,250 7,363,000 B-/NR Gol Finance, 9.25%, 7/20/20 (144A) 6,571,478 4,250,000 BB-/NR TAM Capital 3, Inc., 8.375%, 6/3/21 (144A) 4,717,500 -------------- $ 14,797,229 --------------------------------------------------------------------------------------------------------- Marine -- 0.4% 2,100,000 NR/NR Far Eastern Shipping Co., 8.0%, 5/2/18 (144A) $ 2,112,882 1,345,000 B+/B3 Navios South American Logistics, Inc., 9.25%, 4/15/19 1,469,412 3,540,000 NR/NR Navios South American Logistics, Inc., 9.25%, 4/15/19 (144A) 3,867,450 -------------- $ 7,449,744 --------------------------------------------------------------------------------------------------------- Railroads -- 0.1% 2,606,147 CCC/Caa3 Florida East Coast Holdings Corp., 10.5%, 8/1/17 (PIK) $ 2,710,393 --------------------------------------------------------------------------------------------------------- Trucking -- 0.9% 6,600,000 BB-/Ba3 Aeropuertos Dominicanos Siglo XXI SA, 9.25%, 11/13/19 $ 7,161,000 6,918,241 NR/Ba2 Inversiones Alsacia SA, 8.0%, 8/18/18 (144A) 5,776,731 6,125,000 B/B3 Syncreon Global Ireland, Ltd., 9.5%, 5/1/18 (144A) 6,523,125 -------------- $ 19,460,856 --------------------------------------------------------------------------------------------------------- Airport Services -- 0.4% 4,345,250 B-/B3 Aeropuertos Argentina 2000 SA, 10.75%, 12/1/20 (144A) $ 4,073,672 3,900,000 B/B2 Aguila 3 SA, 7.875%, 1/31/18 (144A) 4,202,250 -------------- $ 8,275,922 -------------- Total Transportation $ 59,811,313 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 31 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 1.6% Auto Parts & Equipment -- 1.2% 1,200,000 BB/Ba2 Lear Corp., 4.75%, 1/15/23 (144A) $ 1,203,000 4,800,000 B+/B2 Pittsburgh Glass Works LLC, 8.5%, 4/15/16 (144A) 4,944,000 4,365,000 CCC/Caa1 Stanadyne Corp., 10.0%, 8/15/14 4,337,719 16,550,000 CCC-/Caa3 Stanadyne Holdings, Inc., 12.0%, 2/15/15 (Step) 11,564,312 2,814,000 B+/B1 Tower Automotive Holdings USA LLC, 10.625%, 9/1/17 (144A) 2,993,421 -------------- $ 25,042,452 --------------------------------------------------------------------------------------------------------- Tires & Rubber -- 0.1% 2,810,000 B+/B1 The Goodyear Tire & Rubber Co., 7.0%, 5/15/22 $ 3,038,312 --------------------------------------------------------------------------------------------------------- Automobile Manufacturers -- 0.3% 1,605,000 B/B1 Chrysler Group LLC, 8.0%, 6/15/19 $ 1,797,600 5,000,000 B/B3 Hyva Global BV, 8.625%, 3/24/16 (144A) 4,919,000 -------------- $ 6,716,600 -------------- Total Automobiles & Components $ 34,797,364 --------------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 3.8% Home Furnishings -- 0.2% 4,705,000 B+/B3 Tempur-Pedic International, Inc., 6.875%, 12/15/20 (144A) $ 5,134,331 --------------------------------------------------------------------------------------------------------- Homebuilding -- 1.2% 8,750,000 CCC/Caa2 Beazer Homes USA, Inc., 9.125%, 6/15/18 $ 9,603,125 2,100,000 BB-/B2 Brookfield Residential Properties, Inc., 6.5%, 12/15/20 (144A) 2,260,125 9,802,000 NR/B2 Desarrolladora Homex SAB de CV, 9.5%, 12/11/19 (144A) 5,930,210 4,450,000 BB-/Ba3 Lennar Corp., 4.75%, 11/15/22 (144A) 4,483,375 7,500,000 NR/Caa2 Urbi Desarrollos Urbanos SAB de CV, 9.75%, 2/3/22 (144A) 2,287,500 -------------- $ 24,564,335 --------------------------------------------------------------------------------------------------------- Housewares & Specialties -- 1.9% 2,400,000 CCC+/Caa2 Reynolds Group Issuer, Inc., 8.25%, 2/15/21 $ 2,547,000 7,490,000 CCC+/Caa2 Reynolds Group Issuer, Inc., 8.5%, 5/15/18 7,976,850 2,735,000 CCC+/Caa2 Reynolds Group Issuer, Inc., 9.0%, 4/15/19 2,953,800 The accompanying notes are an integral part of these financial statements. 32 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Housewares & Specialties -- (continued) 7,675,000 CCC+/Caa2 Reynolds Group Issuer, Inc., 9.875%, 8/15/19 $ 8,615,188 11,165,000 CCC+/B3 Yankee Candle Co., Inc., 9.75%, 2/15/17 11,569,843 5,775,000 CCC+/Caa1 YCC Holdings LLC, 10.25%, 2/15/16 (PIK) 5,962,745 -------------- $ 39,625,426 --------------------------------------------------------------------------------------------------------- Leisure Products -- 0.5% EURO 4,700,000 CCC/Caa2 Heckler & Koch GmbH, 9.5%, 5/15/18 (144A) $ 5,805,474 5,000,000 CCC+/B3 Icon Health & Fitness, Inc., 11.875%, 10/15/16 (144A) 4,187,500 -------------- $ 9,992,974 -------------- Total Consumer Durables & Apparel $ 79,317,066 --------------------------------------------------------------------------------------------------------- CONSUMER SERVICES -- 2.0% Casinos & Gaming -- 0.9% 10,750,000 NR/WR Buffalo Thunder Development Authority, 9.375%, 12/15/14 (144A) (c) $ 2,902,500 4,395,000 CCC/Caa3 Codere Finance Luxembourg SA, 9.25%, 2/15/19 (144A) 3,208,350 2,052,000 B-/NR Little Traverse Bay Bands of Odawa Indians, 9.0%, 8/31/20 (144A) 1,990,440 EURO 1,000,000 8.25 BB/Ba2 Lottomatica Group S.p.A., Floating Rate Note, 3/31/66 (144A) 1,424,196 5,965,000 NR/WR Mashantucket Western Pequot Tribe, 8.5%, 11/15/15 (144A) (c) 417,550 EURO 6,335,000 CCC+/Caa1 Peermont Global Pty, Ltd., 7.75%, 4/30/14 (144A) 8,148,042 1,725,000 CCC/Caa2 Shingle Springs Tribal Gaming Authority, 9.375%, 6/15/15 (144A) 1,725,000 -------------- $ 19,816,078 --------------------------------------------------------------------------------------------------------- Hotels, Resorts & Cruise Lines -- 0.3% 3,800,000 B-/B3 Good Sam Enterprises LLC, 11.5%, 12/1/16 $ 4,061,250 2,860,000 B+/B3 Viking Cruises, Ltd., 8.5%, 10/15/22 (144A) 3,196,050 -------------- $ 7,257,300 --------------------------------------------------------------------------------------------------------- Leisure Facilities -- 0.5% EURO 6,950,000 B+/B3 Cirsa Funding Luxembourg SA, 8.75%, 5/15/18 (144A) $ 9,556,326 --------------------------------------------------------------------------------------------------------- Restaurants -- 0.1% BRL 4,250,000 NR/Ba2 Arcos Dorados Holdings, Inc., 10.25%, 7/13/16 (144A) $ 2,234,104 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 33 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Education Services -- 0.2% 4,225,000 CCC-/Caa1 Cambium Learning Group, Inc., 9.75%, 2/15/17 $ 3,475,062 -------------- Total Consumer Services $ 42,338,870 --------------------------------------------------------------------------------------------------------- MEDIA -- 1.5% Broadcasting -- 1.3% 4,000,000 CCC+/Caa2 Intelsat Luxembourg SA, 7.75%, 6/1/21 (144A) $ 4,220,000 4,300,000 B+/B1 Nara Cable Funding, Ltd., 8.875%, 12/1/18 (144A) 4,601,000 EURO 10,950,000 B+/B1 Nara Cable Funding, Ltd., 8.875%, 12/1/18 (144A) 15,488,611 EURO 1,925,000 B-/Caa1 Ono Finance II Plc, 11.125%, 7/15/19 (144A) 2,729,216 1,755,000 B-/B3 Telesat Canada, 12.5%, 11/1/17 1,866,881 -------------- $ 28,905,708 --------------------------------------------------------------------------------------------------------- Movies & Entertainment -- 0.1% 1,560,000 B-/B3 Regal Entertainment Group, 5.75%, 2/1/25 $ 1,571,700 --------------------------------------------------------------------------------------------------------- Publishing -- 0.1% 1,675,000 B-/B3 MPL 2 Acquisition Canco, Inc., 9.875%, 8/15/18 (144A) $ 1,704,312 -------------- Total Media $ 32,181,720 --------------------------------------------------------------------------------------------------------- RETAILING -- 0.6% Department Stores -- 0.6% 10,855,000 B/NR Grupo Famsa SAB de CV, 11.0%, 7/20/15 (144A) $ 11,614,850 -------------- Total Retailing $ 11,614,850 --------------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 7.7% Distillers & Vintners -- 0.7% 3,975,000 BB+/Ba1 Constellation Brands, Inc., 3.75%, 5/1/21 $ 3,975,000 4,925,000 BB+/Ba1 Constellation Brands, Inc., 4.25%, 5/1/23 4,925,000 EURO 4,012,332 NR/NR Belvedere SA, 7.692%, 11/10/19 (c) 427,634 EURO 320,792 7.69 NR/NR Belvedere SA, Floating Rate Note, 11/10/19 3,377 7,512,000 D/Ca CEDC Finance Corp International, Inc., 9.125%, 12/1/16 (144A) (c) 5,821,800 -------------- $ 15,152,811 --------------------------------------------------------------------------------------------------------- Agricultural Products -- 0.3% 1,500,000 BB-/NR Comfeed Finance BV, 6.0%, 5/2/18 (144A) $ 1,502,390 The accompanying notes are an integral part of these financial statements. 34 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Agricultural Products -- (continued) 4,400,000 B/NR Tonon Bioenergia SA, 9.25%, 1/24/20 (144A) $ 4,565,000 -------------- $ 6,067,390 --------------------------------------------------------------------------------------------------------- Packaged Foods & Meats -- 6.0% 1,960,000 B/B2 Agrokor DD, 8.875%, 2/1/20 (144A) $ 2,189,320 EURO 3,200,000 B/B2 Agrokor DD, 9.875%, 5/1/19 (144A) 4,778,986 6,000,000 BB/Ba3 Bertin SA, 10.25%, 10/5/16 (144A) 6,825,000 4,450,000 B+/B1 CFG Investment SAC, 9.75%, 7/30/19 (144A) 4,071,750 2,770,000 B/B1 Chiquita Brands International, Inc., 7.875%, 2/1/21 (144A) 2,970,825 9,720,000 B+/B2 Corp Pesquera Inca SAC, 9.0%, 2/10/17 (144A) 10,429,560 9,600,000 B/B3 FAGE Dairy Industry SA, 9.875%, 2/1/20 (144A) 10,608,000 2,969,595 NR/NR Independencia International, Ltd., 12.0%, 12/30/16 (144A) (c) 7,424 8,690,000 BB/Ba3 JBS Finance II, Ltd., 8.25%, 1/29/18 (144A) 9,385,200 3,000,000 B+/B2 Marfrig Holding Europe BV, 9.875%, 7/24/17 (144A) 2,805,000 20,248,000 B+/B2 Marfrig Overseas, Ltd., 9.5%, 5/4/20 (144A) 18,425,680 3,783,000 B+/B2 Marfrig Overseas, Ltd., 9.625%, 11/16/16 (144A) 3,574,935 6,300,000 B/NR MHP SA, 8.25%, 4/2/20 (144A) 6,220,393 4,755,000 BB-/B1 Minerva Luxembourg SA, 12.25%, 2/10/22 (144A) 5,872,425 24,000,000 BB-/B1 Minerva Luxembourg SA, 7.75%, 1/31/23 (144A) 25,624,804 6,500,000 B+/B2 Pesquera Exalmar S.A.A., 7.375%, 1/31/20 (144A) 6,457,750 3,995,000 B/Caa1 Pilgrim's Pride Corp., 7.875%, 12/15/18 4,334,575 1,430,000 B+/B2 Wells Enterprises, Inc., 6.75%, 2/1/20 (144A) 1,551,550 -------------- $ 126,133,177 --------------------------------------------------------------------------------------------------------- Tobacco -- 0.7% 14,855,000 B-/B3 Alliance One International, Inc., 10.0%, 7/15/16 $ 15,774,524 -------------- Total Food, Beverage & Tobacco $ 163,127,902 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 35 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- HOUSEHOLD & PERSONAL PRODUCTS -- 0.2% Personal Products -- 0.2% 4,450,000 B/B1 Revlon Consumer Products Corp., 5.75%, 2/15/21 (144A) $ 4,583,500 -------------- Total Household & Personal Products $ 4,583,500 --------------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 1.3% Health Care Equipment -- 0.4% 8,850,000 CCC+/Caa2 Accellent, Inc., 10.0%, 11/1/17 $ 8,429,625 --------------------------------------------------------------------------------------------------------- Health Care Supplies -- 0.5% 5,750,000 B/Caa1 ConvaTec Healthcare E SA, 10.5%, 12/15/18 (144A) $ 6,468,750 3,200,000 B-/Caa2 Immucor, Inc., 11.125%, 8/15/19 3,672,000 -------------- $ 10,140,750 --------------------------------------------------------------------------------------------------------- Health Care Services -- 0.3% 4,253,000 CCC+/Caa2 Gentiva Health Services, Inc., 11.5%, 9/1/18 $ 4,423,120 2,975,000 CCC+/Caa1 Surgical Care Affiliates, Inc., 10.0%, 7/15/17 (144A) 3,101,438 -------------- $ 7,524,558 --------------------------------------------------------------------------------------------------------- Health Care Facilities -- 0.1% 1,550,000 B-/B3 Kindred Healthcare, Inc., 8.25%, 6/1/19 $ 1,594,562 -------------- Total Health Care Equipment & Services $ 27,689,495 --------------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 0.9% Biotechnology -- 0.5% 9,652,000 B/Caa2 Lantheus Medical Imaging, Inc., 9.75%, 5/15/17 $ 9,555,480 --------------------------------------------------------------------------------------------------------- Pharmaceuticals -- 0.4% 7,820,000 BB-/B1 Valeant Pharmaceuticals International, 6.375%, 10/15/20 (144A) $ 8,660,650 -------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 18,216,130 --------------------------------------------------------------------------------------------------------- BANKS -- 4.6% Diversified Banks -- 2.9% TRY 4,500,000 NR/Baa2 Akbank TAS, 7.5%, 2/5/18 (144A) $ 2,548,704 3,150,000 NR/Baa3 Banco de Bogota SA, 5.375%, 2/19/23 (144A) 3,298,050 The accompanying notes are an integral part of these financial statements. 36 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Diversified Banks -- (continued) 6,875,000 9.75 BB+/NR Banco de Credito del Peru Panama, Floating Rate Note, 11/6/69 (144A) $ 8,421,875 6,600,000 B-/Caa1 Banco de Galicia y Buenos Aires, 8.75%, 5/4/18 (144A) 5,742,000 2,900,000 6.25 BB/NR Banco do Brasil SA, Floating Rate Note, 12/29/49 (Perpetual) (144A) 2,895,650 1,750,000 NR/Ba1 Banco do Estado do Rio Grande do Sul SA, 7.375%, 2/2/22 (144A) 1,925,000 5,000,000 NR/B1 Banco GNB Sudameris SA, 7.5%, 7/30/22 (144A) 5,561,316 2,870,000 9.75 NR/Caa3 Banco Macro SA, Floating Rate Note, 12/18/36 2,080,750 3,880,000 NR/B2 Bank CenterCredit, 8.625%, 1/30/14 (144A) 3,983,712 1,250,000 NR/Baa2 BBVA Bancomer SA Texas, 6.75%, 9/30/22 (144A) 1,437,500 EURO 2,600,000 NR/Aaa Cooperatieve Centrale Raiffeisen-Boerenleenbank BA Netherlands, 6.875%, 3/19/20 3,870,234 5,250,000 NR/Ba3 CorpGroup Banking SA, 6.75%, 3/15/23 (144A) 5,558,438 IDR 11,650,000,000 NR/Aaa Inter-American Development Bank, 4.5%, 2/4/16 1,212,953 BRL 11,200,000 AAA/Aaa International Finance Corp., 5.0%, 12/21/15 5,455,470 1,500,000 NR/Ba2 Turkiye Is Bankasi, 6.0%, 10/24/22 (144A) 1,638,750 5,000,000 BBB-/Baa2 VTB Bank OJSC Via VTB Capital SA, 6.95%, 10/17/22 (144A) 5,300,000 -------------- $ 60,930,402 --------------------------------------------------------------------------------------------------------- Regional Banks -- 1.5% 3,165,000 8.50 NR/B1 Banco Internacional del Peru SAA, Floating Rate Note, 4/23/70 (144A) $ 3,529,703 13,430,000 6.75 BBB/Baa3 The PNC Financial Services Group, Inc., Floating Rate Note, 7/29/49 (Perpetual) 15,424,261 10,650,000 BBB-/NR UBS AG, 7.625%, 8/17/22 12,349,144 -------------- $ 31,303,108 --------------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- 0.2% 4,000,000 BB-/Ba2 Alfa Bank OJSC Via Alfa Bond Issuance Plc, 7.5%, 9/26/19 (144A) $ 4,310,800 -------------- Total Banks $ 96,544,310 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 37 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 6.1% Other Diversified Financial Services -- 3.4% EURO 800,000 10.50 B-/NR ATLAS VI Capital, Ltd., Floating Rate Note, 4/7/14 (Cat Bond) (144A) $ 1,080,745 2,000,000 6.50 BB+/NR Caelus Re II, Ltd., Floating Rate Note, 5/24/13 (Cat Bond) (144A) 2,004,400 675,000 0.00 BB-/NR Caelus Re, Ltd., Floating Rate Note, 3/7/16 (Cat Bond) (144A) 677,160 7,245,000 5.35 NR/B1 Citigroup, Inc., Floating Rate Note, 4/29/49 (Perpetual) 7,264,967 1,500,000 10.25 BB-/NR Compass Re, Ltd., Floating Rate Note, 1/8/15 (Cat Bond) (144A) 1,560,300 1,000,000 11.25 B+/NR Compass Re, Ltd., Floating Rate Note, 1/8/15 (Cat Bond) (144A) 1,026,000 5,525,000 NR/B3 DTEK Finance Plc, 7.875%, 4/4/18 (144A) 5,461,462 400,000 9.00 BB/NR East Lane Re V, Ltd., Floating Rate Note, 3/16/16 (Cat Bond) (144A) 433,480 500,000 7.35 BB-/NR Embarcadero Reinsurance, Ltd., Floating Rate Note, 2/13/15 (Cat Bond) (144A) 518,300 TRY 12,410,000 AAA/Aaa European Investment Bank, 3/2/15 (e) 6,381,791 1,250,000 8.35 BB-/NR Ibis Re II, Ltd., Floating Rate Note, 2/5/15 (Cat Bond) (144A) 1,281,750 1,925,000 13.50 B-/NR Ibis Re II, Ltd., Floating Rate Note, 2/5/15 (Cat Bond) (144A) 1,937,512 TRY 800,000 A/A2 JPMorgan Chase & Co., 10/4/17 (144A) (e) 334,418 500,000 6.00 BB/NR Lodestone Re, Ltd., Floating Rate Note, 1/8/14 (Cat Bond) (144A) 502,400 4,250,000 7.25 BB/NR Lodestone Re, Ltd., Floating Rate Note, 1/8/14 (Cat Bond) (144A) 4,278,050 350,000 6.25 BB/NR Lodestone Re, Ltd., Floating Rate Note, 5/17/13 (Cat Bond) (144A) 350,350 4,000,000 8.25 BB-/NR Lodestone Re, Ltd., Floating Rate Note, 5/17/13 (Cat Bond) (144A) 4,007,200 4,100,000 BB/NR Magnesita Finance, Ltd., 8.625%, 4/29/49 (Perpetual) (144A) 4,396,313 4,565,000 B+/B2 National Money Mart Co., 10.375%, 12/15/16 4,913,081 2,500,000 7.50 BB-/NR Queen Street II Capital, Ltd., Floating Rate Note, 4/9/14 (Cat Bond) (144A) 2,520,500 2,000,000 7.50 BB-/NR Queen Street IV Capital, Ltd., Floating Rate Note, 4/9/15 (Cat Bond) (144A) 2,023,200 900,000 8.50 B+/NR Queen Street V Re, Ltd., Floating Rate Note, 4/9/15 (Cat Bond) (144A) 924,930 The accompanying notes are an integral part of these financial statements. 38 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Other Diversified Financial Services -- (continued) 250,000 13.00 B-/NR Residential Reinsurance 2010, Ltd., Floating Rate Note, 6/6/13 (Cat Bond) (144A) $ 251,900 1,750,000 7.25 NR/NR Residential Reinsurance 2010, Ltd., Floating Rate Note, 6/6/13 (Cat Bond) (144A) 1,757,000 1,500,000 6.60 BB/NR Residential Reinsurance 2010, Ltd., Floating Rate Note, 6/6/13 (Cat Bond) (144A) 1,506,150 750,000 9.00 BB-/NR Residential Reinsurance 2011, Ltd., Floating Rate Note, 6/6/15 (Cat Bond) (144A) 789,450 3,450,000 12.00 B-/NR Residential Reinsurance 2011, Ltd., Floating Rate Note, 6/6/15 (Cat Bond) (144A) 3,561,435 2,300,000 NR/NR Sector Re V, Ltd., 12/1/17 (Cat Bond) 2,456,400 3,250,000 NR/NR Sector Re V, Ltd., 3/1/18 (Cat Bond) (144A) 3,294,850 900,000 0.00 B+/NR Tar Heel Re, Ltd., Floating Rate Note, 5/9/16 (Cat Bond) (144A) 927,900 2,750,000 NR/NR Unison Ground Lease Funding LLC, 5.78%, 3/15/20 (144A) 2,752,442 -------------- $ 71,175,836 --------------------------------------------------------------------------------------------------------- Specialized Finance -- 0.8% 6,210,000 BB/Ba3 Ausdrill Finance Pty, Ltd., 6.875%, 11/1/19 (144A) $ 6,272,100 7,675,000 BBB-/WR Cantor Fitzgerald LP, 7.875%, 10/15/19 (144A) 8,007,074 1,000,000 5.25 BB+/NR Kibou, Ltd., Floating Rate Note, 2/16/15 (Cat Bond) (144A) 1,043,800 1,700,000 B/B1 Oxford Finance LLC, 7.25%, 1/15/18 (144A) 1,802,000 850,000 0.00 NR/NR Sanders Re, Ltd., Floating Rate Note, 5/5/17 (Cat Bond) (144A) 850,000 -------------- $ 17,974,974 --------------------------------------------------------------------------------------------------------- Consumer Finance -- 0.5% 10,395,000 NR/NR Tarjeta Naranja SA, 9.0%, 1/28/17 (144A) $ 9,771,300 --------------------------------------------------------------------------------------------------------- Investment Banking & Brokerage -- 1.4% 20,515,000 4.00 BB+/Ba2 Goldman Sachs Capital II, Floating Rate Note, 6/1/43 $ 17,499,295 10,600,000 BBB/Baa3 Jefferies Group LLC, 6.875%, 4/15/21 12,649,266 -------------- $ 30,148,561 -------------- Total Diversified Financials $ 129,070,671 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 39 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- INSURANCE -- 3.7% Insurance Brokers -- 1.4% 14,000,000 CCC+/Caa2 Hub International, Ltd., 8.125%, 10/15/18 (144A) $ 15,067,500 4,900,000 CCC/Caa2 Onex USI Acquisition Corp., 7.75%, 1/15/21 (144A) 5,047,000 GBP 1,200,000 NR/NR Towergate Finance Plc Floating Rate Note, 2/15/18 (144A) 1,863,540 GBP 4,840,000 B-/Caa2 Towergate Finance Plc, 10.5%, 2/15/19 (144A) 7,967,254 -------------- $ 29,945,294 --------------------------------------------------------------------------------------------------------- Life & Health Insurance -- 0.1% 1,375,000 5.20 BBB+/Baa3 Prudential Financial, Inc., Floating Rate Note, 3/15/44 $ 1,399,062 --------------------------------------------------------------------------------------------------------- Multi-line Insurance -- 0.2% 5,100,000 6.46 BBB-/Baa1 AXA SA, Floating Rate Note, 12/29/49 (Perpetual) (144A) $ 5,138,250 --------------------------------------------------------------------------------------------------------- Property & Casualty Insurance -- 0.4% 8,535,000 7.51 BB+/Ba2 Sirius International Group, Ltd., Floating Rate Note, 5/29/49 (Perpetual) (144A) $ 9,034,007 --------------------------------------------------------------------------------------------------------- Reinsurance -- 1.6% 450,000 8.15 BB-/NR Atlas Reinsurance VII, Ltd., Floating Rate Note, 1/7/16 (Cat Bond) (144A) $ 461,340 250,000 6.12 BB+/NR Blue Danube, Ltd., Floating Rate Note, 4/10/15 (Cat Bond) (144A) 260,875 250,000 14.00 B-/NR Blue Fin, Ltd., Floating Rate Note, 5/28/13 (Cat Bond) (144A) 251,750 1,250,000 17.75 NR/NR Combine Re, Ltd., Floating Rate Note, 1/7/15 (Cat Bond) (144A) 1,411,375 750,000 10.00 NR/Ba2 Combine Re, Ltd., Floating Rate Note, 1/7/15 (Cat Bond) (144A) 809,475 1,950,000 5.00 BB+/NR Foundation Re III, Ltd., Floating Rate Note, 2/25/15 (Cat Bond) 2,014,545 2,000,000 5.75 BB/NR Foundation Re III, Ltd., Floating Rate Note, 2/3/14 (Cat Bond) (144A) 2,013,800 2,500,000 12.00 B/NR Mystic Re, Ltd., Floating Rate Note, 3/12/15 (Cat Bond) (144A) 2,668,500 800,000 8.71 B+/NR Mythen Re, Ltd. Series 2012-2 Class A, Floating Rate Note, 1/5/17 (Cat Bond) (144A) 825,680 650,000 11.94 B-/NR Mythen Re, Ltd. Series 2012-2 Class A, Floating Rate Note, 11/10/16 (Cat Bond) (144A) 638,105 2,800,000 11.22 NR/B2 Mythen, Ltd., Floating Rate Note, 5/7/15 (Cat Bond) (144A) 3,041,640 The accompanying notes are an integral part of these financial statements. 40 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Reinsurance -- (coninued) 750,000 13.75 NR/NR Pelican Re, Ltd., Floating Rate Note, 4/13/15 (Cat Bond) (144A) $ 801,150 300,000 10.35 B/NR Queen Street VI Re, Ltd., Floating Rate Note, 4/9/15 (Cat Bond) (144A) 312,120 750,000 8.60 B/NR Queen Street VII Re, Ltd., Floating Rate Note, 4/8/16 (Cat Bond) (144A) 753,075 1,800,000 12.75 NR/NR Residential Reinsurance 2012, Ltd., Floating Rate Note, 12/6/16 (Cat Bond) (144A) 1,866,240 450,000 5.75 BB/NR Residential Reinsurance 2012, Ltd., Floating Rate Note, 12/6/16 (Cat Bond) (144A) 461,880 950,000 19.00 NR/NR Residential Reinsurance 2012, Ltd., Floating Rate Note, 12/6/16 (Cat Bond) (144A) 989,425 1,100,000 10.00 BB-/NR Residential Reinsurance 2012, Ltd., Floating Rate Note, 6/6/16 (Cat Bond) (144A) 1,210,990 1,000,000 8.00 BB/NR Residential Reinsurance 2012, Ltd., Floating Rate Note, 6/6/16 (Cat Bond) (144A) 1,079,300 1,850,000 22.00 NR/NR Residential Reinsurance 2012, Ltd., Floating Rate Note, 6/6/16 (Cat Bond) (144A) 1,938,985 1,125,000 14.68 B-/NR Successor X, Ltd. Class III-S3, Floating Rate Note, 1/7/14 (Cat Bond) (144A) 1,123,988 4,000,000 13.00 NR/NR Successor X, Ltd. Class IV-AL3, Floating Rate Note, 2/25/14 (Cat Bond) (144A) 4,040,400 875,000 16.50 NR/NR Successor X, Ltd., Floating Rate Note, 1/27/15 (Cat Bond) (144A) 906,150 2,600,000 16.18 NR/NR Successor X, Ltd., Floating Rate Note, 1/7/14 (Cat Bond) (144A) 2,570,360 375,000 11.25 B-/NR Successor X, Ltd., Floating Rate Note, 11/10/15 (Cat Bond) (144A) 378,112 -------------- $ 32,829,260 -------------- Total Insurance $ 78,345,873 --------------------------------------------------------------------------------------------------------- REAL ESTATE -- 1.1% Diversified Real Estate Activities -- 0.4% 8,000,000 BB/Ba1 BR Malls International Finance, Ltd., 8.5%, 1/29/49 (Perpetual) (144A) $ 8,719,002 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 41 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Real Estate Operating Companies -- 0.7% 6,750,000 B-/NR Alto Palermo SA, 7.875%, 5/11/17 (144A) $ 6,007,500 8,405,000 B-/NR IRSA Inversiones y Representaciones SA, 8.5%, 2/2/17 (144A) 7,774,625 -------------- $ 13,782,125 -------------- Total Real Estate $ 22,501,127 --------------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 1.2% Data Processing & Outsourced Services -- 0.3% 3,597,000 B-/Caa1 First Data Corp., 12.625%, 1/15/21 $ 3,902,745 2,395,000 BB-/Ba3 NeuStar, Inc., 4.5%, 1/15/23 (144A) 2,323,150 -------------- $ 6,225,895 --------------------------------------------------------------------------------------------------------- Application Software -- 0.2% 7,044,000 CCC-/Caa2 Allen Systems Group, Inc., 10.5%, 11/15/16 (144A) $ 4,472,940 --------------------------------------------------------------------------------------------------------- Systems Software -- 0.7% 15,622,996 NR/NR Pegasus Solutions, Inc., 13.0%, 4/15/14 (144A) (PIK) $ 14,998,076 -------------- Total Software & Services $ 25,696,911 --------------------------------------------------------------------------------------------------------- TECHNOLOGY HARDWARE & EQUIPMENT -- 0.5% Electronic Equipment Manufacturers -- 0.3% 6,150,000 BB-/B1 Viasystems, Inc., 7.875%, 5/1/19 (144A) $ 6,565,125 --------------------------------------------------------------------------------------------------------- Electronic Manufacturing Services -- 0.2% 1,395,000 BB+/Ba1 Flextronics International, Ltd., 4.625%, 2/15/20 (144A) $ 1,426,388 2,320,000 BB+/Ba1 Flextronics International, Ltd., 5.0%, 2/15/23 (144A) 2,366,400 -------------- $ 3,792,788 -------------- Total Technology Hardware & Equipment $ 10,357,913 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 42 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.2% Semiconductor Equipment -- 0.2% 3,200,000 B+/Caa1 MEMC Electronic Materials, Inc., 7.75%, 4/1/19 $ 2,976,000 --------------------------------------------------------------------------------------------------------- Semiconductors -- 0.0%+ CNY 14,000,000 BB-/NR LDK Solar Co., Ltd., 10.0%, 2/28/14 $ 825,033 -------------- Total Semiconductors & Semiconductor Equipment $ 3,801,033 --------------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 4.8% Integrated Telecommunication Services -- 3.5% 6,477,000 B/B1 Cincinnati Bell, Inc., 8.25%, 10/15/17 $ 6,930,390 5,790,000 B/B1 Cincinnati Bell, Inc., 8.375%, 10/15/20 6,209,775 8,378,000 CCC+/B3 Cincinnati Bell, Inc., 8.75%, 3/15/18 8,545,560 5,200,000 BB-/Ba2 Frontier Communications Corp., 7.125%, 1/15/23 5,382,000 2,940,000 BB-/Ba2 Frontier Communications Corp., 8.5%, 4/15/20 3,381,000 10,345,000 BB-/Ba2 Frontier Communications Corp., 8.75%, 4/15/22 11,638,125 EURO 1,600,000 B+/B1 Telenet Finance V Luxembourg SCA, 6.25%, 8/15/22 (144A) 2,189,491 5,260,000 NR/B1 Windstream Corp., 6.375%, 8/1/23 5,444,100 6,285,000 B/B1 Windstream Corp., 7.5%, 6/1/22 6,929,212 2,300,000 B/B1 Windstream Corp., 7.75%, 10/1/21 2,541,500 6,765,000 B/B1 Windstream Corp., 7.75%, 10/15/20 7,424,588 7,345,000 B/B1 Windstream Corp., 8.125%, 9/1/18 8,079,500 -------------- $ 74,695,241 --------------------------------------------------------------------------------------------------------- Wireless Telecommunication Services -- 1.3% 1,000,000 NR/Caa1 Digicel Group, Ltd., 10.5%, 4/15/18 (144A) $ 1,107,500 3,600,000 NR/Caa1 Digicel Group, Ltd., 8.25%, 9/30/20 (144A) 3,852,000 2,300,000 NR/NR Richland Towers Funding LLC, 7.87%, 3/15/16 (144A) 2,486,854 7,800,000 BB/Ba3 Vimpel Communications Via VIP Finance Ireland, Ltd., OJSC, 7.748%, 2/2/21 (144A) 8,921,250 5,375,000 BB/Ba3 VimpelCom Holdings BV, 7.504%, 3/1/22 (144A) 6,073,750 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 43 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Wireless Telecommunication Services -- (continued) RUB 130,000,000 BB/Ba3 VimpelCom Holdings BV, 9.0%, 2/13/18 (144A) $ 4,374,447 -------------- $ 26,815,801 -------------- Total Telecommunication Services $ 101,511,042 --------------------------------------------------------------------------------------------------------- UTILITIES -- 2.1% Electric Utilities -- 0.9% 12,081,000 CCC/NR Cia de Transporte de Energia Electrica en Alta Tension Transener SA, 9.75%, 8/15/21 (144A) $ 5,255,235 7,150,000 5.25 BBB+/A3 Electricite de France SA, Floating Rate Note, 1/29/49 (Perpetual) (144A) 7,191,970 5,256,000 B-/Caa1 Empresa Distribuidora Y Comercializadora Norte, 9.75%, 10/25/22 (144A) 2,444,040 627,013 B/Ba2 FPL Energy National Wind Portfolio LLC, 6.125%, 3/25/19 (144A) 553,587 598,995 B/Ba2 FPL Energy Wind Funding LLC, 6.876%, 6/27/17 (144A) 515,136 2,695,000 CCC/Caa3 Texas Competitive Electric Holdings Co., LLC, 11.5%, 10/1/20 (144A) 2,122,312 -------------- $ 18,082,280 --------------------------------------------------------------------------------------------------------- Gas Utilities -- 0.4% 2,437,000 B-/B2 Star Gas Partners LP, 8.875%, 12/1/17 $ 2,522,295 7,966,000 B-/B3 Transportadora de Gas del Sur SA, 7.875%, 5/14/17 (144A) 6,890,590 -------------- $ 9,412,885 --------------------------------------------------------------------------------------------------------- Multi-Utilities -- 0.3% 6,474,795 NR/NR Ormat Funding Corp., 8.25%, 12/30/20 $ 6,021,559 --------------------------------------------------------------------------------------------------------- Independent Power Producers & Energy Traders -- 0.5% 1,500,000 6.65 BB/NR East Lane Re, Ltd., Floating Rate Note, 3/13/15 (Cat Bond) (144A) $ 1,561,050 940,000 NR/Baa3 Instituto Costarricense de Electricidad, 6.95%, 11/10/21 (144A) 1,073,950 2,800,000 B/B1 InterGen NV, 9.0%, 6/30/17 (144A) 2,835,000 244,150 NR/NR Juniper Generation LLC, 6.79%, 12/31/14 (144A) 231,336 2,170,000 BB-/B1 NRG Energy, Inc., 7.625%, 1/15/18 2,514,488 2,200,000 BB-/B1 NRG Energy, Inc., 8.5%, 6/15/19 2,431,000 357,000 BB+/Ba1 NSG Holdings LLC, 7.75%, 12/15/25 (144A) 383,775 -------------- $ 11,030,599 -------------- Total Utilities $ 44,547,323 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 44 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- GOVERNMENT -- 0.4% 5,250,000 BBB/NR Brazil Minas SPE via State of Minas Gerais, 5.333%, 2/15/28 (144A) $ 5,943,000 TRY 4,200,000 AAA/NR European Bank for Reconstruction & Development, 0.5%, 2/26/15 2,166,001 -------------- $ 8,109,001 -------------- Total Government $ 8,109,001 --------------------------------------------------------------------------------------------------------- TOTAL CORPORATE BONDS (Cost $1,534,131,514) $1,523,313,986 --------------------------------------------------------------------------------------------------------- FOREIGN GOVERNMENT BONDS -- 6.6% BRL 2,950,000 BBB/Baa2 Brazilian Government International Bond, 10.25%, 1/10/28 $ 1,838,913 13,000,000 B-/Caa1 City of Buenos Aires Argentina, 12.5%, 4/6/15 (144A) 12,740,000 COP 6,986,000,000 BBB/Baa3 Colombia Government International Bond, 12.0%, 10/22/15 4,575,080 COP 1,626,000,000 NR/Ba1 Empresa de Telecomunicaciones de Bogota, 7.0%, 1/17/23 (144A) 944,608 GHS 3,660,000 NR/NR Ghana Government Bond, 21.0%, 10/26/15 1,946,686 IDR 53,000,000,000 NR/Baa3 Indonesia Treasury Bond, 7.0%, 5/15/22 6,048,847 IDR 101,459,000,000 NR/Baa3 Indonesia Treasury Bond, 8.25%, 6/15/32 12,513,607 EURO 4,040,000 NR/Baa2 Italy Buoni Poliennali Del Tesoro, 4.5%, 5/1/23 5,577,371 MXN 4,800,000 A-/Baa1 Mexican Bonos, 7.5%, 6/3/27 504,844 MXN 218,733,240 A-/Baa1 Mexican Udibonos, 2.0%, 6/9/22 19,489,575 MXN 10,190,981 A-/Baa1 Mexican Udibonos, 3.5%, 12/14/17 940,574 NGN 760,000,000 NR/NR Nigeria Government Bond, 16.0%, 6/29/19 5,612,937 NGN 634,000,000 NR/NR Nigeria Treasury Bill, 2/6/14 3,693,491 NGN 585,000,000 NR/NR Nigeria Treasury Bill, 3/6/14 3,380,115 NGN 531,000,000 NR/NR Nigeria Treasury Bill, 4/10/14 3,043,941 NGN 520,000,000 NR/NR Nigeria Treasury Bill, 4/24/14 2,936,508 PHP 261,965,000 NR/Ba1 Philippine Government Bond, 5.875%, 3/1/32 8,110,812 4,600,000 B-/NR Province of Salta Argentina, 9.5%, 3/16/22 (144A) 4,095,334 7,425,000 B-/Caa1 Provincia de Buenos Aires Argentina, 10.875%, 1/26/21 (144A) 5,271,750 2,125,000 B-/Caa1 Provincia de Buenos Aires Argentina, 11.75%, 10/5/15 (144A) 1,806,250 2,522,000 B-/NR Provincia de Neuquen Argentina, 7.875%, 4/26/21 (144A) 2,219,360 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 45 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Foreign Government Bonds -- (continued) RON 24,770,000 NR/NR Romania Government Bond, 5.85%, 4/26/23 $ 7,855,296 RON 8,880,000 NR/NR Romania Government Bond, 5.9%, 7/26/17 2,797,189 RUB 143,000,000 BBB+/Baa1 Russian Federal Bond -- OFZ, 7.5%, 3/15/18 4,898,127 2,000,000 B/NR Rwanda International Government Bond, 6.625%, 5/2/23 (144A) 1,957,201 TRY 2,500,000 NR/NR Turkey Government Bond, 10.5%, 1/15/20 1,733,343 575,000 B/B3 Ukraine Government International Bond, 6.75%, 11/14/17 (144A) 566,375 3,500,000 B/B3 Ukraine Government International Bond, 7.8%, 11/28/22 (144A) 3,486,525 9,000,000 B/B3 Ukraine Government International Bond, 9.25%, 7/24/17 (144A) 9,607,500 -------------- $ 140,192,159 --------------------------------------------------------------------------------------------------------- TOTAL FOREIGN GOVERNMENT BONDS (Cost $139,031,799) $ 140,192,159 --------------------------------------------------------------------------------------------------------- MUNICIPAL BONDS -- 0.3% Municipal Development -- 0.0%+ 15,000 7.00 B/B2 New Jersey Economic Development Authority, Floating Rate Note, 11/15/30 $ 15,056 --------------------------------------------------------------------------------------------------------- Municipal General -- 0.3% 8,875,000 0.00 NR/NR Non-Profit Preferred Funding Trust I, Floating Rate Note, 9/15/37 (144A) $ 5,225,156 --------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (Cost $8,873,639) $ 5,240,212 --------------------------------------------------------------------------------------------------------- SENIOR FLOATING RATE LOAN INTERESTS -- 6.6%** ENERGY -- 0.6% Oil & Gas Equipment & Services -- 0.3% 6,215,076 8.50 CCC+/B3 FTS International Services LLC, Term Loan, 5/6/16 $ 6,142,049 --------------------------------------------------------------------------------------------------------- Coal & Consumable Fuels -- 0.3% 6,000,000 0.00 NR/NR Bumi Resources Tbk PT, Term Loan, 8/15/13 $ 5,868,000 -------------- Total Energy $ 12,010,049 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 46 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- MATERIALS -- 0.5% Metal & Glass Containers -- 0.0%+ 289,275 4.50 B/B1 BWAY Holding Co., Initial Term Loan, 8/31/17 $ 293,614 --------------------------------------------------------------------------------------------------------- Paper Packaging -- 0.1% 2,351,598 6.50 B/B2 Exopack Holding Corp., Term Loan B, 5/6/17 $ 2,386,872 --------------------------------------------------------------------------------------------------------- Diversified Metals & Mining -- 0.4% 7,845,688 9.00 B+/B2 Preferred Sands Holding Co., LLC, Term B Loan, 12/15/16 $ 7,453,403 -------------- Total Materials $ 10,133,889 --------------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.6% Aerospace & Defense -- 0.5% 3,837,245 6.25 B-/B2 DAE Aviation Holdings, Inc., Tranche B-1 Loan, 10/18/18 $ 3,878,016 1,739,556 6.25 B/B2 DAE Aviation Holdings, Inc., Tranche B-2 Loan, 10/18/18 1,758,038 3,091,611 6.54 BB/B1 Hunter Defense Technologies, Inc., Series 1 New Term Loan, 8/22/14 2,967,946 1,607,155 3.54 B+/B2 Hunter Defense Technologies, Inc., Term Loan, 8/22/14 1,538,851 -------------- $ 10,142,851 --------------------------------------------------------------------------------------------------------- Building Products -- 0.1% 1,716,375 5.75 B/B1 CPG International I, Inc., Term Loan, 9/21/19 $ 1,734,254 --------------------------------------------------------------------------------------------------------- Industrial Conglomerates -- 0.0%+ 1,467,116 5.00 B+/B2 Pro Mach, Inc., Term Loan, 7/16/17 $ 1,483,621 -------------- Total Capital Goods $ 13,360,726 --------------------------------------------------------------------------------------------------------- COMMERCIAL SERVICES & SUPPLIES -- 0.1% Diversified Support Services -- 0.1% 3,253,176 10.00 NR/NR IAP Worldwide Services, Inc., Term Loan (First Lien), 12/31/15 $ 2,537,477 -------------- Total Commercial Services & Supplies $ 2,537,477 --------------------------------------------------------------------------------------------------------- TRANSPORTATION -- 0.2% Air Freight & Logistics -- 0.2% 508,620 5.28 NR/NR CEVA Group Plc, Dollar Tranche B Pre Funded Term Loan, 8/31/16 $ 474,924 794,899 0.00 NR/NR CEVA Group Plc, EGL Tranche B Term Loan, 8/31/16 754,494 779,050 0.00 CC/B3 CEVA Group Plc, US Tranche B Term Loan, 8/31/16 748,537 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 47 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Air Freight & Logistics -- (continued) 1,007,500 8.25 B-/Ba3 Ozburn-Hessey Logistics LLC, Term Loan (First Lien), 4/7/16 $ 1,011,278 -------------- $ 2,989,233 -------------- Total Transportation $ 2,989,233 --------------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 0.5% Auto Parts & Equipment -- 0.1% 5,141 3.21 BB-/Ba3 Allison Transmission, Inc., New Term B-2 Loan, 8/7/17 $ 5,165 3,151,188 5.50 NR/NR TI Group Automotive Systems LLC, Additional Term Loan, 3/27/19 3,206,333 -------------- $ 3,211,498 --------------------------------------------------------------------------------------------------------- Automobile Manufacturers -- 0.4% 8,007,944 6.00 BB/Ba1 Chrysler Group LLC, Tranche B Term Loan, 4/28/17 $ 8,143,590 -------------- Total Automobiles & Components $ 11,355,088 --------------------------------------------------------------------------------------------------------- MEDIA -- 0.1% Advertising -- 0.1% 2,215,794 6.50 B/Ba3 Affinion Group, Inc., Tranche B Term Loan, 10/9/16 $ 2,183,348 --------------------------------------------------------------------------------------------------------- Publishing -- 0.0%+ 765,692 2.70 CCC/Caa2 Cengage Learning Acquisitions, Inc., Original Term Loan, 7/4/14 $ 599,633 -------------- Total Media $ 2,782,981 --------------------------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 0.1% Food Distributors -- 0.1% 1,386,525 5.75 B/B1 AdvancePierre Foods, Term Loan (First Lien), 6/17/17 $ 1,408,189 -------------- Total Food & Staples Retailing $ 1,408,189 --------------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 0.4% Distillers & Vintners -- 0.4% 7,500,000 0.00 NR/NR Constellation Brands, Inc., Bridge Facility Loan, 6/28/20 $ 7,500,000 -------------- Total Food, Beverage & Tobacco $ 7,500,000 --------------------------------------------------------------------------------------------------------- HOUSEHOLD & PERSONAL PRODUCTS -- 0.1% Personal Products -- 0.1% 2,291,837 4.25 B/NR Monotronics International, Inc., Term B Loan, 3/23/18 $ 2,329,080 -------------- Total Household & Personal Products $ 2,329,080 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 48 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 1.0% Health Care Services -- 0.7% 1,117,567 7.25 BB-/Ba3 Alliance HealthCare Services, Inc., Initial Term Loan, 6/1/16 $ 1,128,743 1,406,475 6.75 B+/B1 Ardent Medical Services, Inc., 1st Lien Term Loan, 5/2/18 1,431,088 1,115,878 7.50 B/Ba3 inVentiv Health, Inc., Consolidated Term Loan, 8/4/16 1,108,439 4,998,012 6.50 NR/NR National Mentor Holdings, Inc., Tranche B-1 Term Loan, 2/9/17 5,072,982 4,075,088 8.25 B/B2 National Surgical Hospitals, Inc., Initial Term Loan, 1/4/17 4,075,088 1,920,000 6.00 B/B2 Surgery Center Holdings, Inc., Term Loan (First Lien), 4/11/19 1,934,400 1,441,813 7.75 B+/B1 Virtual Radiologic Corp., Term Loan A, 11/3/16 1,027,291 -------------- $ 15,778,031 --------------------------------------------------------------------------------------------------------- Managed Health Care -- 0.1% 2,200,000 9.75 B+/B2 MMM Holdings, Inc., Term Loan, 10/9/17 $ 2,216,500 --------------------------------------------------------------------------------------------------------- Health Care Technology -- 0.2% 354,592 8.00 B/NR Physician Oncology Services LP, Delayed Draw Term Loan, 1/31/17 $ 354,592 2,918,726 8.00 B/B2 Physician Oncology Services LP, Effective Date Term Loan, 2/10/17 2,918,726 -------------- $ 3,273,318 -------------- Total Health Care Equipment & Services $ 21,267,849 --------------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 0.2% Biotechnology -- 0.1% 3,073,568 5.50 BB/B2 Axcan Intermediate Holdings, Inc., Term B-1 Loan, 1/25/17 $ 3,103,344 --------------------------------------------------------------------------------------------------------- Pharmaceuticals -- 0.1% 1,046,048 5.00 B+/B1 Generic Drug Holdings, Inc., Closing Date Term Loan, 10/4/19 $ 1,057,162 -------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 4,160,506 --------------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.1% Other Diversified Financial Services -- 0.1% 993,485 0.00 NR/NR Long Haul Holdings, Ltd., Facility A Loan, 1/12/14 (c) $ 556,351 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 49 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- Other Diversified Financial Services -- (continued) 792,928 0.00 NR/NR Long Haul Holdings, Ltd., Facility B Loan, 1/12/14 (c) $ 444,040 1,690,228 4.75 B/B1 WideOpenWest Finance LLC, Term B Loan, 3/27/19 1,715,731 -------------- $ 2,716,122 -------------- Total Diversified Financials $ 2,716,122 --------------------------------------------------------------------------------------------------------- INSURANCE -- 0.6% Insurance Brokers -- 0.5% 9,432,427 3.71 B+/B1 HUB International Holdings, Inc., 2017 Initial Term Loan (Extended), 6/13/17 $ 9,544,437 --------------------------------------------------------------------------------------------------------- Multi-line Insurance -- 0.1% 1,900,238 5.00 B-/B1 Alliant Insurance Services, Inc., Initial Term Loan, 12/7/19 $ 1,926,961 -------------- Total Insurance $ 11,471,398 --------------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 0.8% Application Software -- 0.8% 13,436,402 8.50 B-/Ba3 Expert Global Solutions, Inc., Term B Advance (First Lien), 3/13/18 $ 13,643,551 3,500,000 9.75 CCC+/Caa1 Vertafore, Inc., Term Loan (Second Lien), 10/18/17 3,605,000 -------------- $ 17,248,551 -------------- Total Software & Services $ 17,248,551 --------------------------------------------------------------------------------------------------------- TECHNOLOGY HARDWARE & EQUIPMENT -- 0.2% Electronic Components -- 0.2% 3,897,409 5.00 B/B2 Scitor Corp., Term Loan, 1/21/17 $ 3,897,409 -------------- Total Technology Hardware & Equipment $ 3,897,409 --------------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 0.4% Integrated Telecommunication Services -- 0.4% GBP 5,600,000 0.00 NR/NR Virgin Media Investment Plc, New Term Loan B, 2/6/20 $ 8,803,922 -------------- Total Telecommunication Services $ 8,803,922 --------------------------------------------------------------------------------------------------------- UTILITIES -- 0.1% Electric Utilities -- 0.1% 3,202,730 4.73 CCC/Caa3 Texas Competitive Electric Holdings Co., LLC, 2017 Term Loan (Extending), 10/10/17 $ 2,360,412 -------------- Total Utilities $ 2,360,412 --------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 50 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value --------------------------------------------------------------------------------------------------------- TOTAL SENIOR FLOATING RATE LOAN INTERESTS (Cost $138,714,703) $ 138,332,881 --------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------- Shares --------------------------------------------------------------------------------------------------------- RIGHTS / WARRANTS -- 0.0%+ ENERGY -- 0.0%+ Oil & Gas Equipment & Services -- 0.0%+ 2,275 Green Field Energy Services, Inc. (144A) $ 125,125 --------------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 0.0%+ 592,529 Norse Energy Corp., ASA, 6/16/15 $ 10,267 -------------- Total Energy $ 135,392 --------------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 0.0%+ Auto Parts & Equipment -- 0.0%+ 990 Lear Corp., 11/9/14 $ 113,504 -------------- Total Automobiles & Components $ 113,504 --------------------------------------------------------------------------------------------------------- TOTAL RIGHTS / WARRANTS (Cost $144,461) $ 248,896 --------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------- Principal Amount ($) --------------------------------------------------------------------------------------------------------- TEMPORARY CASH INVESTMENTS -- 1.2% Repurchase Agreements -- 1.2% 12,885,000 RBC Capital Markets Corp., 0.18%, dated 4/30/13, repurchase price of $12,885,000 plus accrued interest on 5/1/13 collateralized by $13,142,701 Federal National Mortgage Association, 2.5-5.0%, 10/1/27-9/1/41 $ 12,885,000 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 51 Schedule of Investments | 4/30/13 (unaudited) (continued) --------------------------------------------------------------------------------------------------------- Principal Amount ($) Value --------------------------------------------------------------------------------------------------------- Repurchase Agreements -- (continued) 12,885,000 Bank of Nova Scotia, Inc., 0.19%, dated 4/30/13, repurchase price of $12,885,000 plus accrued interest on 5/1/13 collateralized by $13,142,781 U.S. Treasury Notes, 0.625%, 8/31/17 $ 12,885,000 -------------- TOTAL TEMPORARY CASH INVESTMENTS (Cost $12,885,000) $ 25,770,000 --------------------------------------------------------------------------------------------------------- TOTAL INVESTMENT IN SECURITIES -- 97.5% (Cost $2,066,785,413) (a) (g) $2,057,124,733 --------------------------------------------------------------------------------------------------------- OTHER ASSETS & LIABILITIES -- 2.5% $ 52,896,845 --------------------------------------------------------------------------------------------------------- TOTAL NET ASSETS -- 100.0% $2,110,021,578 --------------------------------------------------------------------------------------------------------- --------------------------------------------------------------------------------------------------------- Notional Unrealized Principal Swap Counterparty/Referenced Obligation Appreciation --------------------------------------------------------------------------------------------------------- 4,100,000 JPMorgan Chase & Co., Index : Markit CDX.NA.HY.17, 5.0%, 9/20/17 $ 310,026 -------------- TOTAL CREDIT DEFAULT SWAP AGREEMENT (Cost $(153,750)) $ 310,026 -------------- (A.D.R.) American Depositary Receipt. (G.D.R.) Global Depositary Receipt. * Non-income producing security. + Amount rounds to less than 0.1%. WR Security rating withdrawn by either S&P or Moody's. NR Not rated by either S&P or Moody's. (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. REIT Real Estate Investment Trust. PIK Represents a pay in kind security. (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 April 30, 2013, the value of these securities amounted to $1,136,405,767 or 53.9% 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. The accompanying notes are an integral part of these financial statements. 52 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 ** 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 April 30, 2013, the net unrealized loss on investments based on cost for federal income tax purposes of $2,074,307,135 was as follows: Aggregate gross unrealized gain for all investments in which there is an excess of value over tax cost $ 123,628,663 Aggregate gross unrealized loss for all investments in which there is an excess of tax cost over value (140,811,065) ------------- Net unrealized loss $ (17,182,402) ============= (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 is valued using fair value methods (other than prices supplied by independent pricing services). See Notes To Financial Statements -- Note 1A. (e) Security issued with a zero coupon. Income is earned through accretion of discount. (f) Security represents the interest only portion of payments on a pool of underlying mortgages or mortgage backed securities. (g) Distributions of investments by country of issue (excluding temporary cash investments) as a percentage of total investment in securities, is as follows: United States 50.5% Luxembourg 5.4 Cayman Islands 4.7 Netherlands 4.0 Mexico 3.9 Argentina 3.8 Ireland 3.6 United Kingdom 2.5 Brazil 1.8 Canada 1.5 China 1.4 Bermuda 1.3 Peru 1.2 Singapore 1.2 Australia 1.1 Indonesia 1.1 Other (individually less than 1%) 11.0% ------- 100.0% ======= The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 53 Schedule of Investments | 4/30/13 (unaudited) (continued) NOTE: Principal amounts are denominated in U.S. Dollars unless otherwise noted: NOK Norwegian Krone EURO Euro BRL Brazilian Real CAD Canadian Dollar TRY Turkish Lira CNY New Chinese Yuan GBP British Pound Sterling IDR Indonesian Rupiah PHP Philippine Peso RUB Russian Ruble GHS Ghana Cedi NGN Nigerian Naira RON Romanian New Leu MXN Mexican Peso COP Columbian Peso Purchases and sales of securities (excluding temporary cash investments) for the six months ended April 30, 2013 aggregated $417,170,973 and $282,783,733, 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) are categorized as Level 3. See Notes to Financial Statements -- Note 1A. The accompanying notes are an integral part of these financial statements. 54 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 The following is a summary of the inputs used as of April 30, 2013, in valuing the Fund's assets: -------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------- Asset Backed Securities $ -- $ 30,111,290 $ -- $ 30,111,290 Collateralized Mortgage Obligations -- 24,743,761 -- 24,743,761 Corporate Bonds -- 1,517,562,736 5,751,250 1,523,313,986 Convertible Corporate -- 122,563,074 -- 122,563,074 Bond Preferred Stocks 18,908,014 4,490,785 4,521,600 27,920,399 Municipal Bonds -- 5,240,212 -- 5,240,212 Foreign Government Bonds -- 140,192,159 -- 140,192,159 Senior Floating Rate Loan Interests -- 138,332,881 -- 138,332,881 Common Stocks 12,814,116 493,713 4,792,957 18,100,786 Convertible Preferred 587,289 -- -- 587,289 Stocks Repurchase Agreements -- 25,770,000 -- 25,770,000 Rights/Warrants 123,771 125,125 -- 248,896 -------------------------------------------------------------------------------- Total $32,433,190 $2,009,625,736 $15,065,807 $2,059,124,733 ================================================================================ Other Financial Instruments Unrealized appreciation on credit default swaps $ -- $ 310,026 $ -- $ 310,026 Unrealized appreciation on forward foreign currency portfolio hedge contracts -- 582,759 -- 582,759 -------------------------------------------------------------------------------- Total Other Financial Instruments $ -- $ 892,785 $ -- $ 892,785 ================================================================================ The following is a reconciliation of assets valued using significant observable inputs (Level 3): -------------------------------------------------------------------------------- Common Preferred Corporate Stocks Stocks Bonds Total -------------------------------------------------------------------------------- Balance as of 10/31/12 $ 3,499,284 $ -- $ -- $ 3,499,284 Realized gain (loss) -- -- -- -- Change in unrealized appreciation (depreciation)(1) (2,056,327) 21,600 201,250 (1,833,477) Net purchases (sales) 3,350,000 4,500,000 5,550,000 13,400,000 Transfers in and out of Level 3 -- -- -- -- -------------------------------------------------------------------------------- Balance as of 4/30/13 $ 4,792,957 $4,521,600 $5,751,250 $15,065,807 ================================================================================ 1 Realized gain (loss) on these securities is included in the net realized gain (loss) from investments in the Statement of Operations. 2 Unrealized appreciation (depreciation) on these securities is included in the change in unrealized gain (loss) on investments in the Statement of Operations. * Transfers are calculated on the beginning of period values. Net change in unrealized appreciation (depreciation) of investments still held as of 4/30/13 $(1,833,477) ------------ The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 55 Statement of Assets and Liabilities | 4/30/13 (Consolidated) (unaudited) ASSETS: Investment in securities (cost $2,066,785,413) $2,057,124,733 Cash 8,851,112 Foreign currencies, at value (cost $42,009,496) 42,248,157 Receivables -- Investment securities sold 7,993,390 Fund shares sold 6,113,290 Dividends 135,287 Interest 37,478,956 Unrealized appreciation on forward foreign currency portfolio hedge contracts 582,759 Unrealized appreciation on credit default swaps 310,026 Other 683,037 ---------------------------------------------------------------------------------------- Total assets $2,161,520,747 ======================================================================================== LIABILITIES: Payables -- Investment securities purchased $ 39,974,859 Fund shares repurchased 8,680,618 Dividends 1,703,674 Credit default swaps, premiums received 153,750 Due to affiliates 723,714 Accrued expenses 262,554 ---------------------------------------------------------------------------------------- Total liabilities $ 51,499,169 ======================================================================================== NET ASSETS: Paid-in capital $2,385,652,692 Distributions in excess of net investment income (9,041,443) Accumulated net realized loss on investments and foreign currency transactions (257,928,691) Net unrealized depreciation on investments (9,660,680) Net unrealized appreciation on credit default swaps 310,026 Net unrealized appreciation on forward foreign currency contracts and other assets and liabilities denominated in foreign currencies 689,674 ---------------------------------------------------------------------------------------- Total net assets $2,110,021,578 ======================================================================================== NET ASSET VALUE PER SHARE: No par value (unlimited number of shares authorized) Class A (based on $601,873,606/57,637,374 shares) $ 10.44 Class B (based on $32,445,623/3,105,625 shares) $ 10.45 Class C (based on $479,745,130/46,083,645 shares) $ 10.41 Class Y (based on $986,140,843/96,080,136 shares) $ 10.26 Class Z (based on $9,816,376/913,872 shares) $ 10.74 MAXIMUM OFFERING PRICE: Class A ($10.44 (divided by) 95.5%) $ 10.93 ======================================================================================== The accompanying notes are an integral part of these financial statements. 56 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Statement of Operations (Consolidated) (unaudited) For the Six Months Ended 4/30/13 INVESTMENT INCOME: Interest (net of foreign taxes withheld of $187,844) $ 83,890,678 Dividends (net of foreign taxes withheld of $7,181) 676,467 ------------------------------------------------------------------------------------------------- Total investment income $ 84,567,145 ------------------------------------------------------------------------------------------------- EXPENSES: Management fees $ 6,441,627 Transfer agent fees Class A 208,399 Class B 18,707 Class C 88,051 Class Y 29,383 Class Z 2,142 Distribution fees Class A 754,425 Class B 175,826 Class C 2,365,765 Shareholder communication expense 1,194,333 Administrative reimbursements 306,549 Custodian fees 64,400 Registration fees 63,823 Professional fees 51,621 Printing expense 27,191 Fees and expenses of nonaffiliated Trustees 36,537 Miscellaneous 95,180 ------------------------------------------------------------------------------------------------- Total expenses $ 11,923,959 ------------------------------------------------------------------------------------------------- Net investment income $ 72,643,186 ------------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, CLASS ACTION, CREDIT DEFAULT SWAPS AND FOREIGN CURRENCY TRANSACTIONS: Net realized gain (loss) on: Investments $ (15,849,893) Class action 1,566,055 Credit default swaps 79,153 Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (1,258,288) $ (15,462,973) ------------------------------------------------------------------------------------------------- Change in net unrealized appreciation (depreciation) on: Investments $ 77,428,656 Credit default swaps 284,824 Unfunded corporate loans (68,403) Forward foreign currency contracts and other assets and liabilities denominated in foregin currencies 550,409 $ 78,195,486 ------------------------------------------------------------------------------------------------- Net gain on investments $ 62,732,513 ------------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 135,375,699 ================================================================================================= The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 57 Statements of Changes in Net Assets -------------------------------------------------------------------------------------------------- Six Months Ended 4/30/13 Year Ended (Consolidated) 10/31/12 (unaudited) (Consolidated) -------------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $ 72,643,186 $ 183,739,611 Net realized loss on investments, class actions, credit default swaps and foreign currency transactions (15,462,973) (9,094,478) Change in net unrealized appreciation (depreciation) on investments, credit default swaps, unfunded corporate loans and foreign currency transactions 78,195,486 76,792,978 -------------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 135,375,699 $ 251,438,111 -------------------------------------------------------------------------------------------------- DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.36 and $0.81 per share, respectively) $ (21,001,261) $ (52,710,619) Class B ($0.31 and $0.73 per share, respectively) (1,085,251) (3,259,655) Class C ($0.32 and $0.74 per share, respectively) (14,864,444) (34,509,782) Class Y ($0.37 and $0.83 per share, respectively) (35,180,989) (106,055,951) Class Z ($0.38 and $0.86 per share, respectively) (366,143) (742,618) -------------------------------------------------------------------------------------------------- Total distributions to shareowners $ (72,498,088) $ (197,278,625) -------------------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS: Net proceeds from sale or exchange of shares $ 416,895,516 $ 943,301,630 Reinvestment of distributions 62,010,823 170,311,348 Cost of shares repurchased (498,230,672) (1,633,158,248) -------------------------------------------------------------------------------------------------- Net decrease in net assets resulting from Fund share transactions $ (19,324,334) $ (519,545,270) -------------------------------------------------------------------------------------------------- Net increase (decrease) in net assets $ 43,553,277 $ (465,385,784) NET ASSETS: Beginning of period 2,066,468,301 2,531,854,085 -------------------------------------------------------------------------------------------------- End of period $2,110,021,578 $ 2,066,468,301 -------------------------------------------------------------------------------------------------- Distributions in excess of net investment income $ (9,041,443) $ (9,186,541) ================================================================================================== The accompanying notes are an integral part of these financial statements. 58 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 ------------------------------------------------------------------------------------------------ '13 Shares '13 Amount (unaudited) (unaudited) '12 Shares '12 Amount ------------------------------------------------------------------------------------------------ Class A Shares sold 7,795,269 $ 101,333,255 23,366,717 $ 250,593,230 Reinvestment of distributions 1,774,072 18,324,714 4,597,616 45,052,236 Less shares repurchased (11,407,608) (117,680,282) (34,506,225) (336,282,546) ------------------------------------------------------------------------------------------------ Net increase (decrease) (1,838,267) $ 1,977,687 (6,541,892) $ (40,637,080) ================================================================================================ Class B Shares sold or exchanged 24,908 $ 1,762,731 143,609 $ 2,916,301 Reinvestment of distributions 86,920 897,545 269,832 2,642,789 Less shares repurchased (850,006) (8,755,454) (1,706,616) (16,757,590) ------------------------------------------------------------------------------------------------ Net decrease (738,178) $ (6,095,178) (1,293,175) $ (11,198,500) ================================================================================================ Class C Shares sold 4,094,319 $ 56,633,315 7,882,302 $ 91,982,625 Reinvestment of distributions 1,063,893 10,952,816 2,402,034 23,480,616 Less shares repurchased (5,496,027) (56,487,031) (10,848,907) (105,965,981) ------------------------------------------------------------------------------------------------ Net increase (decrease) (337,815) $ 11,099,100 (564,571) $ 9,497,260 ================================================================================================ Class Y Shares sold 20,954,372 $ 254,885,812 53,936,699 $ 590,959,930 Reinvestment of distributions 3,101,665 31,488,596 10,250,504 98,636,819 Less shares repurchased (22,951,032) (233,158,735) (113,454,287) (1,089,953,263) ------------------------------------------------------------------------------------------------ Net increase (decrease) 1,105,005 $ 53,215,673 (49,267,084) $ (400,356,514) ================================================================================================ Class Z Shares sold 216,117 $ 2,280,403 677,620 $ 6,849,544 Reinvestment of distributions 32,667 347,152 49,395 498,888 Less shares repurchased (300,663) (82,149,170) (510,913) (84,198,868) ------------------------------------------------------------------------------------------------ Net increase (decrease) (51,879) $ (79,521,615) 216,102 $ (76,850,436) ================================================================================================ The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 59 Financial Highlights ------------------------------------------------------------------------------------------------------------------------------------ Six Months Ended 4/30/13 Year Ended Year Ended Year Year Year (Consolidated) 10/31/12 10/31/11 Ended Ended Ended (unaudited) (Consolidated) (Consolidated) 10/31/10 10/31/09 10/31/08 ------------------------------------------------------------------------------------------------------------------------------------ Class A Net asset value, beginning of period $ 10.13 $ 9.83 $ 10.53 $ 9.39 $ 7.56 $ 12.30 ------------------------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income $ 0.36 $ 0.76 $ 0.77 $ 0.80 $ 0.90 $ 1.03 Net realized and unrealized gain (loss) on investments and foreign currency transactions 0.31 0.35 (0.70) 1.11 1.98 (4.59) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.67 $ 1.11 $ 0.07 $ 1.91 $ 2.88 $ (3.56) ------------------------------------------------------------------------------------------------------------------------------------ Distributions to shareowners: Net investment income $ (0.36) $ (0.81) $ (0.77) $ (0.77) $ (1.05) $ (1.07) Net realized gain -- -- -- -- -- (0.11) ------------------------------------------------------------------------------------------------------------------------------------ Total distributions $ (0.36) $ (0.81) $ (0.77) $ (0.77) $ (1.05) $ (1.18) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ 0.31 $ 0.30 $ (0.70) $ 1.14 $ 1.83 $ (4.74) ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 10.44 $ 10.13 $ 9.83 $ 10.53 $ 9.39 $ 7.56 ==================================================================================================================================== Total return* 6.66% 11.89% 0.49% 21.16% 43.56% (31.45)% Ratio of net expenses to average net assets+ 1.10%** 1.10% 1.09% 1.10% 1.10% 1.10% Ratio of net investment income to average net assets+ 7.01%** 7.74% 7.37% 8.08% 11.68% 9.25% Portfolio turnover rate 28% 33% 52% 49% 33% 25% Net assets, end of period (in thousands) $601,874 $602,568 $648,746 $1,117,231 $1,018,040 $759,925 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses 1.10%** 1.10% 1.09% 1.15% 1.32% 1.18% Net investment income 7.01%** 7.74% 7.37% 8.02% 11.46% 9.17% Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 1.10%** 1.10% 1.09% 1.10% 1.10% 1.10% Net investment income 7.01%** 7.74% 7.37% 8.07% 11.68% 9.25% ==================================================================================================================================== * 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. + Ratios with no reduction for fees paid indirectly. ** Annualized. The accompanying notes are an integral part of these financial statements. 60 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 ------------------------------------------------------------------------------------------------------------------------------------ Six Months Ended 4/30/13 Year Ended Year Ended Year Year Year (Consolidated) 10/31/12 10/31/11 Ended Ended Ended (unaudited) (Consolidated) (Consolidated) 10/31/10 10/31/09 10/31/08 ------------------------------------------------------------------------------------------------------------------------------------ Class B Net asset value, beginning of period $ 10.14 $ 9.83 $ 10.53 $ 9.37 $ 7.54 $ 12.27 ------------------------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income $ 0.30 $ 0.68 $ 0.68 $ 0.70 $ 0.81 $ 0.93 Net realized and unrealized gain (loss) on investments and foreign currency transactions 0.32 0.36 (0.69) 1.15 2.01 (4.57) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.62 $ 1.04 $ (0.01) $ 1.85 $ 2.82 $ (3.64) ------------------------------------------------------------------------------------------------------------------------------------ Distributions to shareowners: Net investment income $ (0.31) $ (0.73) $ (0.69) $ (0.69) $ (0.99) $ (0.98) Net realized gain -- -- -- -- -- (0.11) ------------------------------------------------------------------------------------------------------------------------------------ Total distributions $ (0.31) $ (0.73) $ (0.69) $ (0.69) $ (0.99) $ (1.09) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ 0.31 $ 0.31 $ (0.70) $ 1.16 $ 1.83 $ (4.73) ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 10.45 $ 10.14 $ 9.83 $ 10.53 $ 9.37 $ 7.54 ==================================================================================================================================== Total return* 6.23% 11.10% (0.32)% 20.40% 42.42% (32.02)% Ratio of net expenses to average net assets+ 1.95%** 1.91% 1.90% 1.92% 2.00% 1.92% Ratio of net investment income to average net assets+ 6.16%** 6.94% 6.59% 7.27% 10.88% 8.47% Portfolio turnover rate 28% 33% 52% 49% 33% 25% Net assets, end of period (in thousands) $32,446 $38,965 $50,509 $80,100 $96,411 $83,412 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses 1.95%** 1.91% 1.90% 1.92% 2.08% 1.92% Net investment income 6.16%** 6.94% 6.56% 7.27% 10.80% 8.47% Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 1.95%** 1.91% 1.90% 1.92% 2.00% 1.92% Net investment income 6.16%** 6.94% 6.59% 7.27% 10.88% 8.47% ==================================================================================================================================== * 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. + Ratios with no reduction for fees paid indirectly. ** Annualized. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 61 The accompanying notes are an integral part of these financial statements. Financial Highlights (continued) ------------------------------------------------------------------------------------------------------------------------------------ Six Months Ended 4/30/13 Year Ended Year Ended Year Year Year (Consolidated) 10/31/12 10/31/11 Ended Ended Ended (unaudited) (Consolidated) (Consolidated) 10/31/10 10/31/09 10/31/08 ------------------------------------------------------------------------------------------------------------------------------------ Class C Net asset value, beginning of period $ 10.10 $ 9.80 $ 10.49 $ 9.34 $ 7.51 $ 12.24 ------------------------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income $ 0.32 $ 0.69 $ 0.70 $ 0.73 $ 0.82 $ 0.93 Net realized and unrealized gain (loss) on investments and foreign currency transactions 0.31 0.35 (0.69) 1.11 1.99 (4.57) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.63 $ 1.04 $ 0.01 $ 1.84 $ 2.81 $ (3.64) ------------------------------------------------------------------------------------------------------------------------------------ Distributions to shareowners: Net investment income $ (0.32) $ (0.74) $ (0.70) $ (0.69) $ (0.98) $ (0.98) Net realized gain -- -- -- -- -- (0.11) ------------------------------------------------------------------------------------------------------------------------------------ Total distributions $ (0.32) $ (0.74) $ (0.70) $ (0.69) $ (0.98) $ (1.09) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ 0.31 $ 0.30 $ (0.69) $ 1.15 $ 1.83 $ (4.73) ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 10.41 $ 10.10 $ 9.80 $ 10.49 $ 9.34 $ 7.51 ==================================================================================================================================== Total return* 6.32% 11.17% (0.13)% 20.43% 42.56% (32.08)% Ratio of net expenses to average net assets+ 1.81%** 1.78% 1.78% 1.82% 1.98% 1.85% Ratio of net investment income to average net assets+ 6.29%** 7.08% 6.72% 7.37% 10.78% 8.55% Portfolio turnover rate 28% 33% 52% 49% 33% 25% Net assets, end of period (in thousands) $479,745 $468,920 $460,476 $524,448 $461,644 $347,459 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses 1.81%** 1.78% 1.78% 1.82% 1.98% 1.85% Net investment income 6.29%** 7.08% 6.72% 7.37% 10.78% 8.55% Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 1.81%** 1.78% 1.78% 1.82% 1.98% 1.85% Net investment income 6.29%** 7.08% 6.72% 7.37% 10.78% 8.55% ==================================================================================================================================== * 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. + Ratios with no reduction for fees paid indirectly. ** Annualized. The accompanying notes are an integral part of these financial statements. 62 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 ------------------------------------------------------------------------------------------------------------------------------------ Six Months Ended 4/30/13 Year Ended Year Ended Year Year Year (Consolidated) 10/31/12 10/31/11 Ended Ended Ended (unaudited) (Consolidated) (Consolidated) 10/31/10 10/31/09 10/31/08 ------------------------------------------------------------------------------------------------------------------------------------ Class Y Net asset value, beginning of period $ 9.96 $ 9.66 $ 10.35 $ 9.25 $ 7.46 $ 12.10 ------------------------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income $ 0.37 $ 0.76 $ 0.81 $ 0.86 $ 0.94 $ 1.05 Net realized and unrealized gain (loss) on investments and foreign currency transactions 0.30 0.37 (0.70) 1.03 1.91 (4.48) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.67 $ 1.13 $ 0.11 $ 1.89 $ 2.85 $ (3.43) ------------------------------------------------------------------------------------------------------------------------------------ Distributions to shareowners: Net investment income $ (0.37) $ (0.83) (0.80) (0.79) (1.06) (1.10) Net realized gain -- -- -- -- -- (0.11) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ 0.30 $ 0.30 $ (0.69) $ 1.10 $ 1.79 $ (4.64) ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 10.26 $ 9.96 $ 9.66 $ 10.35 $ 9.25 $ 7.46 ==================================================================================================================================== Total return* 6.77% 12.35% 0.85% 21.35% 43.78% (30.96)% Ratio of net expenses to average net assets+ 0.81%** 0.80% 0.74% 0.73% 0.78% 0.74% Ratio of net investment income to average net assets+ 7.30%** 8.03% 7.72% 8.42% 11.43% 9.82% Portfolio turnover rate 28% 33% 52% 49% 33% 25% Net assets, end of period (in thousands) $986,141 $945,946 $1,364,543 $958,596 $215,614 $50,477 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses 0.81%** 0.80% 0.74% 0.73% 0.79% 0.74% Net investment income 7.30%** 8.03% 7.72% 8.42% 11.43% 9.82% Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 0.81%** 0.80% 0.74% 0.73% 0.78% 0.74% Net investment income 7.30%** 8.03% 7.72% 8.42% 11.43% 9.82% ==================================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions and the complete redemption of the investment at net asset value at the end of each period. + Ratios with no reduction for fees paid indirectly. ** Annualized. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 63 The accompanying notes are an integral part of these financial statements. Financial Highlights (continued) ------------------------------------------------------------------------------------------------------------------------------------ Six Months Ended 4/30/13 Year Ended Year Ended Year Year Year (Consolidated) 10/31/12 10/31/11 Ended Ended Ended (unaudited) (Consolidated) (Consolidated) 10/31/10 10/31/09 10/31/08 ------------------------------------------------------------------------------------------------------------------------------------ Class Z Net asset value, beginning of period $ 10.43 $ 10.11 $ 10.86 $ 9.67 $ 7.79 $ 12.31 ------------------------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income $ 0.38 $ 0.82 $ 0.85 $ 0.87 $ 1.00 $ 1.07 Net realized and unrealized gain (loss) on investments and foreign currency transactions 0.31 0.36 (0.77) 1.13 1.98 (4.37) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.69 $ 1.18 $ 0.08 $ 2.00 $ 2.98 $ (3.30) ------------------------------------------------------------------------------------------------------------------------------------ Distributions to shareowners: Net investment income $ (0.38) $ (0.86) (0.83) (0.81) (1.10) (1.11) Net realized gain -- -- -- -- -- (0.11) ------------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ (0.38) $ (0.86) $ (0.75) $ 1.19 $ 1.88 $ (4.52) ------------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 10.74 $ 10.43 $ 10.11 $10.86 $ 9.67 $ 7.79 ==================================================================================================================================== Total return* 6.70% 12.30% 0.53% 21.58% 43.69% (29.21)% Ratio of net expenses to average net assets+ 0.87%** 0.88% 0.76% 0.90% 0.90% 0.90% Ratio of net investment income to average net assets+ 7.22%** 7.99% 7.67% 8.26% 11.46% 9.85% Portfolio turnover rate 28% 33% 52% 49% 33% 25% Net assets, end of period (in thousands) $ 9,817 $10,069 $ 7,580 $7,416 $4,283 $ 2,366 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses 0.87%** 0.88% 0.76% 0.91% 1.23% 1.11% Net investment income 7.22%** 7.99% 7.67% 8.25% 11.13% 9.64% Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 0.87%** 0.88% 0.76% 0.90% 0.90% 0.90% Net investment income 7.22%** 7.99% 7.67% 8.26% 11.46% 9.85% ==================================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions and the complete redemption of the investment at net asset value at the end of each period. ** Annualized. + Ratios with no reduction for fees paid indirectly. The accompanying notes are an integral part of these financial statements. 64 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Notes to Financial Statements | 4/30/13 (Consolidated) (unaudited) 1. Organization and Significant Accounting Policies Pioneer Global High Yield Fund (the Fund) is a series of Pioneer Series Trust VII, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The investment objective of the Fund is to maximize total return through a combination of income and capital appreciation. The Fund offers five classes of shares designated as Class A, Class B, Class C, Class Y and Class Z shares. Class Y shares were first publicly offered on December 28, 2005. Class Z shares were first publicly offered on July 6, 2007. Effective as of the close of business on December 31, 2009, Class B shares are no longer offered to new or existing shareholders, except that dividends and/or capital gain distributions may continue to be reinvested in Class B shares, and shareholders may exchange their Class B shares for Class B shares of other Pioneer funds, as permitted by existing exchange privileges. 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 or Class Z shares. Class B shares convert to Class A shares approximately eight years after the date of purchase. 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 year. Actual results could differ from those estimates. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 65 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. 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. Senior loans for which no reliable price quotes are available will be valued by Loan Pricing Corporation through the use of pricing matrices to determine valuations. Fixed income securities with remaining maturity of more than sixty days 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. Credit default swaps are valued by an independent pricing service based upon valuation models incorporating default probabilities, estimated recovery rates, actual reported transactions, and other available market data. 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. Short-term fixed income securities with remaining maturities of sixty days or less generally are valued at amortized cost. Shares of money market mutual funds are valued at such funds' net asset value. 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. 66 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Securities or senior loans for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by or at the direction or with the approval of the Valuation Committee using fair value methods pursuant to procedures adopted by the Board of Trustees. The Valuation Committee is comprised of certain members of the Board of Trustees. The Trust 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 Trust'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 Trust's securities may differ significantly from exchange prices and such differences could be material. Pioneer Investment Management, Inc. (PIM) 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. At April 31, 2012, 6 securities were valued using fair value methods (in addition to securities valued using prices supplied by independent pricing services) representing 0.7% of net assets. 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. 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, including interest on income bearing cash accounts, is recorded on the accrual basis, 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. B. 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 Global High Yield Fund | Semiannual Report | 4/30/13 67 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 market price of those securities but are included with the net realized and unrealized gain or loss on investments. C. 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 gains or losses are recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a portfolio hedge 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 8). D. 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 April 30, 2013, the Fund did not have any interest and penalties related to uncertain tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax years for the prior three fiscal years remain subject to examination by federal and state tax authorities. The amounts and characterizations of distributions to shareowners for financial reporting purposes are determined in accordance with federal income tax rules. Therefore, the sources of the Fund's distributions may be shown in the accompanying financial statements as from or in excess of net investment income or as from net realized gain on investment transactions, or as from paid-in capital, depending on the type of book/tax differences that may exist. The tax character of current year distributions payable will be determined at the end of the current taxable year. The tax character of distributions paid during the year ended October 31, 2012 was as follows: 68 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 ---------------------------------------------------------------------------- 2012 ---------------------------------------------------------------------------- Distributions paid from: Ordinary income $197,278,625 ---------------------------------------------------------------------------- Total $197,278,625 ============================================================================ The following shows the components of distributable earnings on a federal income tax basis at October 31, 2012: ---------------------------------------------------------------------------- 2012 ---------------------------------------------------------------------------- Distributable earnings: Capital loss carryforward $(242,085,543) Current year dividend payable (2,109,680) Unrealized depreciation (94,313,502) ---------------------------------------------------------------------------- Total $(338,508,725) ============================================================================ The difference between book basis and tax basis unrealized depreciation is attributable to the tax deferral of losses on wash sales, the mark-to-market of foreign currency contracts, adjustments relating to catastrophe bonds, credit default swaps, partnerships, interest on defaulted bonds, and interest accruals on preferred stock. E. 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 $105,636 in underwriting commissions on the sale of Class A shares during the six months ended April 30, 2013. F. 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, Class B and Class C shares of the Fund, respectively (see Note 5). Class Y and Class Z 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). Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 69 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 B, Class C, Class Y and Class Z shares can reflect different transfer agent and distribution expense rates. G. 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 investments in foreign markets and countries with limited developing markets may subject the Fund to a greater degree of risk than in a developed market. These risks include disruptive political or economic conditions and the imposition of adverse governmental laws or currency exchange restrictions. 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. The Fund invests in below investment grade (high yield) debt securities and preferred stocks. Some of these high yield securities may be convertible into equity securities of the issuer. Debt securities rated below investment grade are commonly referred to as "junk bonds" and are considered speculative. These securities involve greater risk of loss, are subject to greater price volatility, and are less liquid, especially during periods of economic uncertainty or change, than higher rated debt securities. H. 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. The Fund's investment adviser, Pioneer Investment Management, Inc. (PIM), is responsible for determining that the value of the collateral remains at least equal to the repurchase price. 70 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 I. 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 increase the Fund's income, to add leverage to the portfolio or to hedge the risk of default on portfolio securities. 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, one party, 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 received by the Fund, as the protection seller, is recorded as a liability in the Fund's records. An upfront payment made by the Fund, as the protection buyer, is recorded as an asset in the Fund's records. Periodic payments received or paid by the Fund are recorded as realized gains or losses. The 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 gain or loss. 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. 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. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 71 During the six months ended April 30, 2013, the Fund opened one credit default swap, with a notional principal of $4,100,000, which was still open at period end. Credit default swap contracts outstanding at year end are listed at the end of the Fund's schedule of investments. 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, the Fund's investment adviser, manages the Fund's portfolio. Management fees are calculated daily at the annual rate of 0.70% of the Fund's average daily net assets up to $500 million; 0.65% of the next $500 million; 0.60% of the next $500 million; 0.55% of the next $500 million; and 0.45% on assets over $2 billion. For the six months ended April 30, 2013, the effective management fee (excluding waivers and/or assumption of expenses) was equivalent to 0.60% of the Fund's average daily net assets. PIM contractually agreed to limit ordinary operating expenses to the extent required to reduce Fund expenses to 1.10%, 2.00%, 2.00% and 0.90% of the average daily net assets attributable to Class A, Class B, Class C and Class Z shares, respectively. Class Y shares do not have an expense limitation. These expense limitations were in effect through March 1, 2013. 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 $174,904 in management fees, administrative costs and certain other reimbursements payable to PIM at April 30, 2013. Effective March 5, 2012, PIM has retained Brown Brothers Harriman & Co. to provide certain sub-administration and accounting services to the Fund. 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 April 30, 2013, such out-of-pocket expenses by class of shares were as follows: 72 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 -------------------------------------------------------------------------------- Shareholder Communications: -------------------------------------------------------------------------------- Class A $ 301,802 Class B 29,271 Class C 230,795 Class Y 624,760 Class Z 7,705 -------------------------------------------------------------------------------- Total $1,194,333 ================================================================================ Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $476,499 in transfer agent fees and out-of-pocket reimbursements payable to PIMSS at April 30, 2013. 4. Basis for Consolidation of the Financial Statements The consolidated financial statements of the Fund include the accounts of the Subsidiary. All intercompany accounts and transactions have been eliminated in consolidation. The Subsidiary, a Delaware corporation, was incorporated on February 10, 2011 and is wholly-owned and controlled by the Fund. It is intended that the Fund will remain the sole shareholder of, and will continue to control, the Subsidiary. The Subsidiary acts as an investment vehicle for the Fund's interest in Blaze Recycling and Metals LLC, Class A Units. As of April 30, 2013, the Subsidiary represented approximately $727,757 or approximately 0.03% of the net assets of the Fund. 5. 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, Class B 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 B and Class C shares. The fee for Class B and 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 B and Class C shares. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $72,311 in distribution fees payable to PFD at April 30, 2013. In addition, redemptions of each class of shares (except Class Y and Class Z 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. Class B shares that are redeemed within five years of purchase are subject to a CDSC at declining rates beginning at 4.00%, based on the lower of cost or market value of shares being Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 73 redeemed. Redemptions of Class C shares within one year 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 or Class Z shares. Proceeds from the CDSCs are paid to PFD. For the six months ended April 30, 2013, CDSCs in the amount of $23,109 were paid to PFD. 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 15, 2012 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% 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 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 April 30, 2013, the Fund had no borrowings under the credit facility. 7. 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 April 30, 2013, the Fund's expenses were not reduced under such arrangements. 8. Forward Foreign Currency Contracts At April 30, 2013, 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 portfolio hedge contracts open during the six months ended April 30, 2013 was $74,984,460. 74 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Open portfolio hedges at April 30, 2013 were as follows: ------------------------------------------------------------------------------------------------- Net Unrealized Net Contracts In Exchange Settlement Appreciation Currency to Deliver For Date Value (Depreciation) ------------------------------------------------------------------------------------------------- GBP (British Pounds) (800,000) $ (1,242,050) 8/15/13 $ (1,241,600) $ 451 GBP (British Pounds) (3,846,000) (6,211,790) 5/15/13 (5,972,096) 239,694 EURO (European Euro) (6,168,265) (8,012,481) 5/22/13 (8,117,239) (104,757) EURO (European Euro) (6,167,462) (8,012,481) 5/22/13 (8,116,181) (103,700) EURO (European Euro) (15,000,000) (20,367,600) 5/6/13 (19,737,439) 630,161 INR (Indian Rupee) 271,000,000 4,822,922 9/16/13 4,917,284 94,362 KES (Kenyan Shilling) (47,785,714) (557,268) 5/14/13 (568,710) (11,442) KES (Kenyan Shilling) 47,785,714 535,714 5/14/13 568,710 32,996 NGN (Nigerian Naira) 342,000,000 2,117,533 6/19/13 2,136,632 19,099 RUB (Russian Ruble) 78,000,000 2,480,324 7/8/13 2,479,112 (1,212) KRW (South Korean Won) 15,050,000,000 13,206,968 5/15/13 13,655,420 448,452 JPY (Japanese Yen) 757,500,000 8,012,481 5/22/13 7,769,943 (242,539) JPY (Japanese Yen) 757,500,000 8,012,481 5/22/13 7,769,943 (242,539) JPY (Japanese Yen) (1,515,500,000) (15,368,749) 5/22/13 (15,545,014) (176,266) ------------------------------------------------------------------------------------------------- Total $ 582,759 ================================================================================================= 9. Additional Disclosures about Derivative Instruments and Hedging Activities: Values of derivative instruments as of April 30, 2013 were as follows: -------------------------------------------------------------------------------------- Derivatives Not Accounted for as Asset Derivatives 2013 Liabilities Derivatives 2013 Hedging Instruments --------------------------- ----------------------------- Under Accounting Statement of Assets Statement of Assets Standards Codification and Liabilities and Liabilities (ASC) 815 Location Value Location Value -------------------------------------------------------------------------------------- Forward Foreign Unrealized Unrealized Currency Portfolio appreciation depreciation Hedge Contracts on forward on forward foreign currency foreign currency portfolio hedge portfolio hedge contracts $582,759 contracts $ -- Credit Default Swaps Unrealized Unrealized appreciation on depreciation on credit default credit default swaps $310,026 swaps $ -- -------------------------------------------------------------------------------------- Total $892,785 $ -- ====================================================================================== Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 75 The effect of derivative instruments on the Statement of Operations for the six months ended April 30, 2013 was as follows: ------------------------------------------------------------------------------------------------ Change in Unrealized Derivatives Not Appreciation Accounted for as Realized Gain or Hedging Instruments or (Loss) (Depreciation) Under Accounting on Derivatives on Derivatives Standards Codification Location of Gain or (Loss) on Recognized Recognized (ASC) 815 Derivatives Recognized in Income in Income in Income ------------------------------------------------------------------------------------------------ Forward Foreign Net realized gain (loss) on forward $(1,602,859) Currency Portfolio foreign currency contracts and Hedge Contracts other assets and liabilities denominated in foreign currencies Forward Foreign Change in unrealized appreciation $696,883 Currency Portfolio (depreciation) on forward foreign Hedge Contracts currency contracts and other assets and liabilities denominated in foreign currencies Credit Default Swaps Net realized gain (loss) on credit default swaps $ 79,153 Credit Default Swaps Change in unrealized appreciation (depreciation) on credit default swaps $284,824 76 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Approval of Investment Advisory Agreement Pioneer Investment Management, Inc. (PIM) serves as the investment adviser to Pioneer Global High Yield 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 March 2012 as the Trustees of the Fund agreed on, among other things, an overall approach and timeline for the process. In July 2012, the Trustees approved the format of the contract review materials and submitted their formal request to PIM to furnish information necessary to evaluate the terms of the investment advisory agreement. The contract review materials were provided to the Trustees in July 2012 and September 2012. After reviewing and discussing the materials, the Trustees submitted a request for additional information to PIM, and materials were provided in response to this request. Meetings of the Independent Trustees of the Fund were held in July, September, October, and November, 2012 to review and discuss the contract review materials. In addition, the Trustees took into account the information related to the Fund provided to the Trustees at each regularly scheduled meeting. At a meeting held on November 13, 2012, 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. 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, its research process and its process for trade execution. The Trustees considered the resources of PIM and the personnel of PIM who provide investment management services to 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 also considered the substantial attention and high priority given by PIM's senior management to the Pioneer fund complex. In addition, the Trustees considered PIM's plans to increase resources in its investment management function and other enhancements to PIM's advisory capabilities. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 77 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 The Trustees considered the performance results of the Fund over various time periods. They reviewed information comparing the Fund's performance with the performance of its peer group of funds as classified by Morningstar, Inc. (Morningstar), an independent provider of investment company data, and with the performance of the Fund's benchmark index. The Trustees considered that the Fund's annualized total return was in the fifth quintile of its Morningstar category for the one and five year periods ended June 30, 2012, and in the first quintile of its Morningstar category for the three year period ended June 30, 2012. (In all quintile rankings referred to throughout this disclosure, first quintile is most favorable to the Fund's shareowners. Thus, highest relative performance would be first quintile and lowest relative expenses would also be first quintile.) The Trustees also considered that the Fund's twelve month average gross portfolio yield (using month end 30 day effective yields) exceeded the twelve month average yield of the Fund's benchmark index. The Trustees discussed the Fund's performance record. They indicated that they were satisfied with the discussions with PIM with respect to the Fund's performance. 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 Trust 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, 2012 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 noted that the assets of the Fund were currently in excess of the last breakpoint in the Fund's management fee schedule. The Trustees 78 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 considered information that showed that the current fee schedule for the Fund would remain competitive at higher asset levels. The Trustees considered that the expense ratio of Class A shares of the Fund for the twelve months ended June 30, 2012 was in the fifth quintile relative to its Strategic Insight peer group for the comparable period, and that the expense ratio of Class Y shares of the Fund for the twelve months ended June 30, 2012 was in in the fourth quintile relative to its Strategic Insight peer group for the comparable period. The Trustees noted that the expense ratio of Class A shares of the Fund was approximately ten basis points higher than the median expense ratio of its Strategic Insight peer group and that the expense ratio of Class Y shares of the Fund was approximately four basis points higher than the median expense ratio of its Strategic Insight peer group. The Trustees considered that the expense ratio of each of Class A and Class Y shares of the Fund for the twelve months ended June 30, 2012 was in the third quintile relative to the Fund's Morningstar category. The Trustees reviewed management fees charged by PIM and PIM's affiliate, Pioneer Institutional Asset Management, Inc. (together with PIM, "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. 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 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 79 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, rarely identifiable on a Fund-by-Fund basis, 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 Funds. 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 particularly, for example during the recent difficult periods for financial markets, as the level of services was maintained notwithstanding a significant decline in PIM's fee revenues from the Funds. Accordingly, the Trustees concluded that economies of scale, if any, were being appropriately shared with the Fund. 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. The Trustees considered the intangible benefits to PIM by virtue of its relationship with the Fund and the other Pioneer funds. The Trustees concluded that the receipt of these benefits was reasonable in the context of the overall relationship between PIM and the Fund. 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. 80 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 Trustees, Officers and Service Providers Trustees Officers Thomas J. Perna, Chairman John F. Cogan, Jr., President* David R. Bock Daniel K. Kingsbury, Executive John F. Cogan, Jr. Vice President Benjamin M. Friedman Mark E. Bradley, Treasurer** Margaret B.W. Graham Christopher J. Kelley, Secretary Daniel K. Kingsbury Marguerite A. Piret Stephen K. West Investment Adviser and Administrator Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Bingham McCutchen 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. * Chief Executive Officer of the Fund. ** Chief Financial and Accounting Officer of the Fund. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 81 This page for your notes. 82 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 This page for your notes. Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 83 This page for your notes. 84 Pioneer Global High Yield Fund | Semiannual Report | 4/30/13 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) 2013 Pioneer Investments 19382-07-0613 Pioneer Global Aggregate Bond Fund -------------------------------------------------------------------------------- Semiannual Report | April 30, 2013 -------------------------------------------------------------------------------- Ticker Symbols: Class A PGABX Class C PGCBX Class Y PGYBX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents Letter to Shareowners 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 43 Notes to Financial Statements 50 Approval of Investment Advisory Agreement 61 Trustees, Officers and Service Providers 65 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 1 President's Letter Dear Shareowner, Pioneer continues to see only modest economic growth in the U.S. Employment continues to rise, albeit slowly, and we believe it will continue to do so in 2013, barring a negative shock to the system. The housing and auto sectors continue to recover, benefiting from record-low interest rates. Banks' willingness to lend to consumers and businesses also continues to rise, broad measures of inflation remain subdued, and, if the weather cooperates in 2013, food prices should come back down. And, while corporate profit growth has slowed, profits remain high and many U.S. companies continue to both pay and increase dividends*. Offsetting some of these positives are the continued contraction of fiscal policy in Washington and a recessionary Europe. The Federal Reserve's aggressive monetary policy has driven Treasury yields to generational lows and supported investments in all financial assets, including equities and high-yield corporate bonds. For example, the Standard & Poor's 500 Index (the S&P 500), a broad measure of the U.S. stock market, returned 15.99% for the full calendar year ended December 31, 2012, and the Bank of America Merrill Lynch High Yield Master II Index (the High Yield Index), which measures the performance of high-yield corporate bonds, returned 15.59% for the same 12-month period. On the other hand, the Barclays Aggregate Bond Index (the Aggregate Index), which tracks the performance of a higher-quality bond universe, gained 4.22% for the 12 months ended December 31, 2012; the safer-still Barclays Government Credit Index (the Government/Credit Index) returned 4.82%; and 3-month Treasury bills, generally regarded as essentially "risk free" by the markets, returned just 0.09% in 2012. "Risky" assets outperformed again in the first quarter of 2013, as the S&P 500 returned 10.60% and the High Yield Index returned 2.89%. In contrast, the Aggregate Index returned -0.12% in the first quarter, the Government Credit Index returned -0.16%, and Treasury bills returned 0.02%. Despite generally improving economic conditions and a rising stock market, global economies and investors still face daunting challenges as 2013 moves forward, although we remain cautiously optimistic. U.S. fiscal policy remains unsettled, and we feel the U.S. government could be at risk of credit rating downgrades from one or more of the major ratings agencies if the uncertainties persist. The Federal Reserve continues to provide extraordinary support to the U.S. economy and the bond market, but will not do so indefinitely. Europe has made progress, but has not yet resolved its sovereign-debt/banking problem, nor has the region been able to exit recession. Japan recently has unveiled aggressive and unconventional monetary and fiscal policies, but the country * Dividends are not guaranteed. 2 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 continues to face issues such as high levels of debt as well as an aging population. China and other emerging economies, while generally in better shape than most "developed" markets, also face a range of challenges. While most of the risks outlined here are widely recognized and may already be "priced in" to the market, we believe investors should continue to expect market volatility. At Pioneer, we have long advocated the benefits of staying diversified and investing for the long term. And while diversification does not assure a profit or protect against loss in a declining market, we believe there are still opportunities for prudent investors to earn attractive returns. Our advice, as always, is to work closely with a trusted financial advisor to discuss your goals and work together to develop an investment strategy that meets your individual needs, keeping in mind that there is no single best strategy that works for every investor. Pioneer's investment teams have, since 1928, sought out attractive opportunities in global equity and bond markets, using in-depth research to identify undervalued individual securities, and using thoughtful risk management to construct portfolios which balance potential risks and reward in an ever-changing world. We encourage you to learn more about Pioneer and our time-tested approach to investing by consulting with your financial advisor or visiting us online at us.pioneerinvestments.com. We greatly appreciate your trust in us, and we thank you for investing with Pioneer. Sincerely, /s/ Daniel K. Kingsbury Daniel K. Kingsbury 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 Aggregate Bond Fund | Semiannual Report | 4/30/13 3 Portfolio Management Discussion | 4/30/13 Global fixed-income markets generally produced modest results over the six months ended April 30, 2013, against a backdrop of sluggish economic growth and continued worries about sovereign-debt problems and recession in Europe as well as weakened growth in China. In the following interview, Charles Melchreit discusses the market environment and the performance of Pioneer Global Aggregate Bond Fund during the six-month period. Mr. Melchreit, a senior vice president and portfolio manager at Pioneer, is responsible for the daily management of the Fund, along with Mr. Tanguy Le Saout, Head of European Fixed-Income Portfolio Management and European Fixed-Income Research at Pioneer. Q How did the Fund perform during the six months ended April 30, 2013? A Pioneer Global Aggregate Bond Fund's Class A shares returned 2.36% at net asset value during the six months ended April 30, 2013, while the Fund's benchmark, the Barclays Global Aggregate Bond Index (the Barclays Index), returned -1.07%. During the same period, the average return of the 184 mutual funds in Lipper's Global Income Funds category was 1.95%. Q How would you describe the investment environment for global fixed-income securities during the six months ended April 30, 2013? A Investment conditions varied by country and region during the six-month period. The U.S. market, which accounts for almost half of the benchmark Barclays Index, was buoyed somewhat by positive, but unimpressive, economic growth trends, although political disagreements over fiscal policy late in 2012 unsettled investors and created volatility before the markets quieted down again. More credit-sensitive bond investments, such as corporate bonds, significantly outperformed low-yielding U.S. Treasuries and other government securities during the period. In Europe, however, the situation was more varied and more challenging. Investors' attitudes about the debt problems of peripheral European countries actually improved in light of the temporary solutions engineered by the European Central Bank. Nevertheless, concerns still existed during the period, most notably over the recession that had slowed down most European markets. While industrial production gains in some northern European regions offered some positive news for the markets, investors remained concerned about the lack of a long-term solution to the region's sovereign-debt problems, weak housing markets in several nations, and the vulnerability of European exports to the strength of the euro. The euro had 4 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 surprised many observers by gaining on world currency markets, as the higher yields related to the region's sovereign-debt problems had attracted the attention of some investors. The downside, however, was that the strengthened euro currency made European exports less cost-competitive. Economic growth in China, when compared with other regions, remained relatively robust, but it still weakened during the six-month period. In response, Chinese authorities have adopted a more accommodative monetary policy and eased controls on capital in order to encourage a pickup in growth; The new Chinese government also assured the markets it was committed to continued economic reform. China, however, still remained vulnerable to the economic problems in Europe, which is the country's largest export market. The biggest surprises during the six-month period occurred in Japan, where a new national government and a new governor of the nation's central bank (the Bank of Japan) both came on the scene. Japanese authorities engineered a 30% drop in the value of the yen on currency markets, which was widely seen as having added value to Japanese assets, and the Japanese stock market shot up on the prospects of economic improvement after a prolonged slump in the national economy. In the emerging economies, assets flowed into several markets, most notably in many countries in Southeast Asia, which appeared attractive to investors because of their growing economies, emerging middle classes, and moderating political risks. The six-month period also saw two additional emerging nations - Mexico and the Philippines - enjoy upgrades of their credit ratings from high-yield to investment-grade. Q What were your principal investment strategies, and how did they affect the Fund's performance during the six months ended April 30, 2013? A The biggest factor in the Fund's good benchmark-relative performance during the period was currency positioning. We had a positive view of the prospects for the U.S. dollar (USD) in the currency markets, and so we significantly overweighted the portfolio to the USD relative to the Barclays Index. The Fund's overweight to the USD helped relative performance, as did the portfolio's exposures to some emerging market currencies, including those of Mexico, Brazil and Poland. We generally de-emphasized most non-U.S developed market currencies during the period. While the Fund's underweight to the Japanese yen helped relative performance, the de-emphasis of the euro in the portfolio detracted from relative performance. Consistent with this theme, the Fund's underweighting of European government bonds had a negative impact on relative performance. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 5 Broken down by sector, we favored owning corporate bonds over sovereign debt in the portfolio, and that allocation supported the Fund's results during the period, as credit-linked securities generally outperformed government debt. As of April 30, 2013, approximately 30% of the Fund's assets were invested in corporate bonds, compared with a 17% weighting to corporates in the Barclays Index. Among the Fund's corporate holdings, performance was helped during the period by exposures to industrials and U.S. financial institutions. At period end, about 41% of the Fund's assets were invested in government bonds, compared with a 67% weighting in the Barclays Index. The Fund's government-debt investments generally focused on opportunities outside the major non-U.S. developed markets. The portfolio did own some forward currency contracts - a type of derivative security - during the period, but they did not have a noteworthy effect on the Fund's results. Q What is your investment outlook? A We think the economy in the United States should continue to grow, but at a lackluster pace. In China, economic expansion is likely to remain more vigorous than in the rest of the world, but should also be slower than in the recent past. We expect that the Chinese government will maintain its reform efforts to transform the national economy into one that is driven more by domestic demand, rather than export demand. The situation in Europe, meanwhile, probably will remain unchanged until after the German elections this coming September. The most interesting questions center on Japan, where fiscal and monetary policy makers appear intent on increasing inflation, freeing up savings, raising consumption and devaluing the yen. Such policies may stimulate greater growth, especially in the export industries; however, the domestic economy remains highly regulated and inefficient, and it remains to be seen whether further reforms are put in place to change the situation. We are very positive about the relative strength of the USD, which is receiving added support from an unexpected increase in domestic energy production. Outside the USD, we feel the best investment opportunities in currencies may be in the growing emerging markets, and particularly in those nations that are not dependent on exporting commodities. Emerging market countries, in general, continue to offer investors both attractive yields and improving risk profiles. 6 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 Note to Shareholders: The Board of Trustees of Pioneer Global Aggregate Bond Fund has approved certain changes to the Fund's investment objective, strategies and portfolio management. As part of the changes, the Fund will be able to invest to a greater extent in below-investment-grade securities, and a team of four Pioneer portfolio managers--Kenneth Taubes, Charles Melchreit, Andrew Feltus and Paresh Upadhyaya--will be responsible for the day-to-day management of the Fund. In addition, the Fund will be renamed Pioneer Global Multisector Income Fund. The changes are effective as of August 1, 2013. Please see the Fund's prospectus for more details. Please refer to the Schedule of Investments on pages 15-42 for a full listing of Fund securities. 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 portfolio may invest in derivative securities, which may include futures and options. These types of instruments can increase price fluctuation. 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 risk. Investing in foreign and/or emerging market securities involves risks relating to interest rates, currency exchange rates, economic, and political conditions. The securities issued by U.S. government sponsored entities (i.e., FNMA, Freddie Mac) are neither guaranteed nor issued by the U.S. government. These risks may increase share price volatility. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. 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. These statements should not be relied upon for any other purposes. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 7 Portfolio Summary | 4/30/13 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 35.1% U.S. Corporate Bonds 24.8% Collateralized Mortgage Obligations 15.0% International Corporate Bonds 8.5% U.S. Government Securities 4.1% Asset Backed Securities 3.9% Municipal Bonds 3.4% Convertible Corporate Bonds 1.8% U.S. Preferred Stocks 1.4% International Preferred Stocks 0.9% Senior Secured Loans 0.6% Convertible Preferred Stock 0.5% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)* 1. Indonesia Treasury Bond, 9.0%, 9/15/13 2.12% -------------------------------------------------------------------------------- 2. Indonesia Treasury Bond, 7.375%, 9/15/16 1.89 -------------------------------------------------------------------------------- 3. Japan Government Ten Year Bond, 1.0%, 12/20/21 1.68 -------------------------------------------------------------------------------- 4. Poland Government Bond, 5.25%, 10/25/17 1.66 -------------------------------------------------------------------------------- 5. Finland Government Bond, 4.375%, 7/4/19 1.63 -------------------------------------------------------------------------------- 6. Russian Federal Bond - OFZ, 8.15%, 2/3/27 1.11 -------------------------------------------------------------------------------- 7. Japan Government Ten Year Bond, 1.7%, 9/20/16 1.10 -------------------------------------------------------------------------------- 8. Japan Government Twenty Year Bond, 1.5%, 3/20/19 1.00 -------------------------------------------------------------------------------- 9. Malaysia Government Bond, 3.418%, 8/15/22 0.99 -------------------------------------------------------------------------------- 10. Fannie Mae, 3.5%, 9/1/42 0.95 -------------------------------------------------------------------------------- * 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 Aggregate Bond Fund | Semiannual Report | 4/30/13 Prices and Distributions | 4/30/13 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 4/30/13 10/31/12 -------------------------------------------------------------------------------- A $11.48 $11.49 -------------------------------------------------------------------------------- C $11.50 $11.51 -------------------------------------------------------------------------------- Y $11.57 $11.59 -------------------------------------------------------------------------------- Distributions per Share: 11/1/12-4/30/13 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.1800 $0.0408 $0.0554 -------------------------------------------------------------------------------- C $0.1292 $0.0408 $0.0554 -------------------------------------------------------------------------------- Y $0.1956 $0.0408 $0.0554 -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Barclays Global Aggregate Bond Index is an unmanaged index that provides a broad-based measure of the global investment-grade fixed-income markets. 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 10-12. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 9 Performance Update | 4/30/13 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Global Aggregate Bond Fund at public offering price, compared to that of the Barclays Global Aggregate Bond Index. Average Semiannual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- Net Asset Public Offering Period Value (NAV) Price (POP) -------------------------------------------------------------------------------- Life-of-Class (12/27/07) 6.27% 5.36% 5 Year 5.88 4.90 1 Year 6.17 1.40 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2013) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.65% 1.00% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Global Barclays Global Aggregate Bond Fund Aggregate Bond Index 12/31/2007 $ 9,550 $ 10,000 4/30/2008 $ 9,982 $ 10,460 4/30/2009 $ 9,646 $ 10,229 4/30/2010 $ 11,020 $ 11,176 4/30/2011 $ 12,140 $ 12,345 4/30/2012 $ 12,509 $ 12,752 4/30/2013 $ 13,281 $ 12,937 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 contractual expense limitations currently in effect through March 1, 2014, for Class A shares. There can be no assurance that Pioneer will extend the expense limitations 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 Aggregate Bond Fund | Semiannual Report | 4/30/13 Performance Update | 4/30/13 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Global Aggregate Bond Fund, compared to that of the Barclays Global Aggregate Bond Index. Average Semiannual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- Life-of-Class (12/27/07) 5.39% 5.39% 5 Year 4.98 4.98 1 Year 5.22 5.22 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2013) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.39% 1.90% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Global Barclays Global Aggregate Bond Fund Aggregate Bond Index 12/31/2007 $ 10,000 $ 10,000 4/30/2008 $ 10,429 $ 10,460 4/30/2009 $ 9,976 $ 10,229 4/30/2010 $ 11,309 $ 11,176 4/30/2011 $ 12,370 $ 12,345 4/30/2012 $ 12,640 $ 12,752 4/30/2013 $ 13,301 $ 12,937 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 contractual expense limitations currently in effect through March 1, 2014, for Class C shares. There can be no assurance that Pioneer will extend the expense limitations 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 Aggregate Bond Fund | Semiannual Report | 4/30/13 11 Performance Update | 4/30/13 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Pioneer Global Aggregate Bond Fund, compared to that of the Barclays Global Aggregate Bond Index. Average Semiannual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- Life-of-Class (12/27/07) 6.49% 6.49% 5 Year 6.11 6.11 1 Year 6.38 6.38 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2013) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.18% 0.75% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer Global Barclays Global Aggregate Bond Fund Aggregate Bond Index 12/31/2007 $5,000,000 $5,000,000 4/30/2008 $5,227,750 $5,229,772 4/30/2009 $5,054,129 $5,114,537 4/30/2010 $5,790,645 $5,588,203 4/30/2011 $6,382,956 $6,172,351 4/30/2012 $6,610,228 $6,375,830 4/30/2013 $7,031,849 $6,468,690 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 contractual expense limitations currently in effect through March 1, 2014, for Class Y shares. There can be no assurance that Pioneer will extend the expense limitations 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 Global Aggregate Bond Fund | Semiannual Report | 4/30/13 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. 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 Aggregate Bond Fund Based on actual returns from November 1, 2012, through April 30, 2013. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account Value on 11/1/12 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) on 4/30/13 $1,023.60 $1,019.00 $1,023.90 -------------------------------------------------------------------------------- Expenses Paid During Period* $5.02 $9.46 $3.76 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.00%, 1.89% and 0.75% for Class A, Class C, and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 181/365. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 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 Global Aggregate Bond Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from November 1, 2012, through April 30, 2013. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account Value on 11/1/12 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) on 4/30/13 $1,019.84 $1,015.42 $1,021.08 -------------------------------------------------------------------------------- Expenses Paid During Period* $5.01 $9.44 $3.76 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.00%, 1.89% and 0.75% for Class A, Class C, and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 181/365. 14 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 Schedule of Investments | 4/30/13 (unaudited) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- CONVERTIBLE CORPORATE BONDS -- 1.8% CAPITAL GOODS -- 0.2% Electrical Components & Equipment -- 0.2% 56,000 B/B2 General Cable Corp., 4.5%, 11/15/29 (Step) $ 68,145 ------------- Total Capital Goods $ 68,145 ----------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 0.2% Homebuilding -- 0.2% 50,000 B/B2 KB Home, Inc., 1.375%, 2/1/19 $ 57,969 ------------- Total Consumer Durables & Apparel $ 57,969 ----------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 0.8% Health Care Equipment -- 0.3% 75,000 B+/NR Hologic, Inc., 2.0%, 12/15/37 (Step) $ 85,688 ----------------------------------------------------------------------------------------------------- Managed Health Care -- 0.5% 125,000 A-/NR WellPoint, Inc., 2.75%, 10/15/42 (144A) $ 149,062 ------------- Total Health Care Equipment & Services $ 234,750 ----------------------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.6% Semiconductor Equipment -- 0.3% 75,000 BBB-/Baa1 Lam Research Corp., 1.25%, 5/15/18 $ 85,500 ----------------------------------------------------------------------------------------------------- Semiconductors -- 0.3% 85,000 A-/NR Intel Corp., 2.95%, 12/15/35 $ 94,828 ------------- Total Semiconductors & Semiconductor Equipment $ 180,328 ----------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE CORPORATE BONDS (Cost $469,843) $ 541,192 ----------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------- Shares ----------------------------------------------------------------------------------------------------- PREFERRED STOCKS -- 1.6% BANKS -- 0.5% Diversified Banks -- 0.3% 4,000 6.00 A-/Baa1 US Bancorp, Floating Rate Note (Perpetual) $ 112,240 ----------------------------------------------------------------------------------------------------- Regional Banks -- 0.2% 500 6.25 A-/NR CoBank ACB, Floating Rate Note (Perpetual) (144A) $ 53,750 ------------- Total Banks $ 165,990 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 15 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Floating S&P/Moody's Shares Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.7% Other Diversified Financial Services -- 0.7% 6,527 7.88 BB/Ba2 Citigroup Capital XIII, Floating Rate Note, 10/30/40 $ 184,322 850 8.12 CCC+/B3 GMAC Capital Trust I, Floating Rate Note, 2/15/40 23,282 ------------- $ 207,604 ------------- Total Diversified Financials $ 207,604 ----------------------------------------------------------------------------------------------------- INSURANCE -- 0.4% Property & Casualty Insurance -- 0.2% 2,225 5.10 BBB/Baa1 The Allstate Corp., Floating Rate Note, 1/15/53 $ 59,185 ----------------------------------------------------------------------------------------------------- Reinsurance -- 0.2% 50,000 0.00 NR/NR Altair RE, Floating Rate Note, 4/30/16 $ 50,240 ------------- Total Insurance $ 109,425 ----------------------------------------------------------------------------------------------------- TOTAL PREFERRED STOCKS (Cost $441,575) $ 483,019 ----------------------------------------------------------------------------------------------------- CONVERTIBLE PREFERRED STOCK -- 0.6% BANKS -- 0.6% Diversified Banks -- 0.6% 130 BBB+/Ba1 Wells Fargo & Co., 7.5% (Perpetual) $ 171,568 ----------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE PREFERRED STOCK (Cost $136,282) $ 171,568 ----------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------- Principal Amount ($) ----------------------------------------------------------------------------------------------------- ASSET BACKED SECURITIES -- 3.9% MATERIALS -- 0.9% Diversified Metals & Mining -- 0.0% 16,291 NR/A1 BCMSC Trust 1998-A, 6.65%, 4/15/28 $ 16,909 ----------------------------------------------------------------------------------------------------- Steel -- 0.6% 42,209 0.60 AA+/Aa2 First NLC Trust 2005-2, Floating Rate Note, 9/25/35 $ 41,109 18,215 NR/Baa1 Irwin Home Equity Loan Trust 2005-1, 5.32%, 6/25/35 (Step) 17,777 The accompanying notes are an integral part of these financial statements. 16 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Steel -- (continued) 2,762 0.26 CCC/Ca Morgan Stanley ABS Capital I, Inc., Trust 2007-HE3, Floating Rate Note, 12/25/36 $ 1,520 9,559 0.55 AAA/Aaa New Century Home Equity Loan Trust Series 2005-1, Floating Rate Note, 3/25/35 9,302 24,976 0.46 AA+/Aa3 Option One Mortgage Loan Trust 2005-4 Asset-Backed Certificates Series 2005-4, Floating Rate Note, 11/25/35 24,540 11,806 0.64 AA+/A1 RASC Series 2005-KS7 Trust, Floating Rate Note, 8/25/35 11,519 64,907 AA-/A2 Terwin Mortgage Trust Series TMTS 2005-16HE, 4.308%, 9/25/36 (Step) 66,599 ------------- $ 172,366 ----------------------------------------------------------------------------------------------------- Paper Products -- 0.3% GBP 50,000 0.70 AAA/Aaa Chester Asset Receivables Dealings 2004-1 Plc, Floating Rate Note, 4/15/16 $ 77,527 ------------- Total Materials $ 266,802 ----------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 0.5% Auto Parts & Equipment -- 0.4% CAD 56,912 AAA/NR Ford Auto Securitization Trust Series 2011-R1 Asset-Backed Notes, 2.431%, 11/15/14 (144A) $ 57,279 CAD 74,653 NR/Aaa Ford Auto Securitization Trust, 1.485%, 12/15/14 (144A) 74,054 ------------- $ 131,333 ----------------------------------------------------------------------------------------------------- Automobile Manufacturers -- 0.1% 30,000 A/A1 Santander Drive Auto Receivables Trust 2012-1, 3.78%, 11/15/17 $ 31,380 ------------- Total Automobiles & Components $ 162,713 ----------------------------------------------------------------------------------------------------- RETAILING -- 0.1% Automotive Retail -- 0.1% EURO 12,861 1.37 AAA/Aaa E-CARAT SA, Floating Rate Note, 10/18/18 $ 16,941 ------------- Total Retailing $ 16,941 ----------------------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 0.2% Food Retail -- 0.2% 50,000 BBB-/NR CKE Restaurant Holdings, Inc., 4.474%, 3/20/43 (144A) $ 52,989 ------------- Total Food & Staples Retailing $ 52,989 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 17 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- BANKS -- 1.3% Diversified Banks -- 0.0% 5,478 0.29 NR/Aa1 Wells Fargo Home Equity Asset-Backed Securities 2007-2 Trust, Floating Rate Note, 4/25/37 $ 5,436 ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- 1.3% 92,087 NR/Ba3 Bear Stearns Asset Backed Securities Trust, 8.41%, 10/25/29 (Step) $ 90,958 68,909 BB/B2 Citicorp Residential Mortgage Trust Series 2006-1, 5.836%, 7/25/36 (Step) 68,661 52,785 B-/B1 Citicorp Residential Mortgage Trust Series 2006-3, 5.703%, 11/25/36 (Step) 52,662 10,214 0.57 AA+/A2 Countrywide Asset-Backed Certificates, Floating Rate Note, 1/25/36 10,177 23,689 4.46 BB+/Ba1 Countrywide Asset-Backed Certificates, Floating Rate Note, 10/25/35 23,776 24,280 5.07 BB+/B2 Countrywide Asset-Backed Certificates, Floating Rate Note, 2/25/36 24,593 7,299 0.31 BBB-/Ba3 Countrywide Asset-Backed Certificates, Floating Rate Note, 5/25/37 7,278 25,000 A/NR First Investors Auto Owner Trust 2013-1, 2.02%, 1/15/19 (144A) 25,058 4,492 0.85 A/A2 GSAMP Trust 2005-HE2, Floating Rate Note, 3/25/35 4,401 1,056 0.58 AA+/Aa1 GSAMP Trust 2005-WMC1, Floating Rate Note, 9/25/35 1,055 15,633 5.91 AA/A3 Origen Manufactured Housing Contract Trust 2004-A, Floating Rate Note, 1/15/35 16,792 50,000 A/NR SNAAC Auto Receivables Trust, 3.11%, 6/15/17 (144A) 50,788 14,166 A+/Baa2 Structured Asset Securities Corp., 4.77%, 10/25/34 (Step) 14,474 ------------- $ 390,673 ------------- Total Banks $ 396,109 ----------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.9% Other Diversified Financial Services -- 0.5% 50,000 A/A1 Capital Auto Receivables Asset Trust 2013-1, 1.74%, 10/22/18 $ 50,246 100,000 A/NR Springleaf Funding Trust 2013-A, 2.58%, 9/15/21 (144A) 100,000 ------------- $ 150,246 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 18 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Specialized Finance -- 0.4% 98,125 BBB+/Baa1 Domino's Pizza Master Issuer LLC, 5.216%, 1/25/42 (144A) $ 110,281 ------------- Total Diversified Financials $ 260,527 ----------------------------------------------------------------------------------------------------- TOTAL ASSET BACKED SECURITIES (Cost $1,133,458) $ 1,156,081 ----------------------------------------------------------------------------------------------------- COLLATERALIZED MORTGAGE OBLIGATIONS -- 15.0% BANKS -- 9.4% Thrifts & Mortgage Finance -- 9.4% 12,162 0.65 CCC/NR Alternative Loan Trust 2003-14T1, Floating Rate Note, 8/25/18 $ 11,416 105,000 BBB+/Ba3 Alternative Loan Trust 2004-12CB, 5.0%, 7/25/19 109,387 17,478 B-/NR Alternative Loan Trust 2004-14T2, 5.5%, 8/25/34 17,294 8,518 CCC/B2 Alternative Loan Trust 2004-28CB, 5.5%, 1/25/35 8,666 28,755 BB+/Ba2 Alternative Loan Trust 2004-4CB, 4.25%, 4/25/34 28,926 17,064 0.65 NR/A1 Banc of America Alternative Loan Trust 2003-10, Floating Rate Note, 12/25/33 16,384 24,882 A+/Baa2 Banc of America Alternative Loan Trust 2003-2, 5.75%, 4/25/33 26,995 61,061 NR/Baa2 Banc of America Alternative Loan Trust 2003-7, 5.5%, 9/25/33 62,147 26,422 NR/B1 Banc of America Alternative Loan Trust 2004-10, 5.5%, 11/25/19 26,759 17,202 NR/Ba2 Banc of America Alternative Loan Trust 2004-2, 6.0%, 3/25/34 17,742 18,281 NR/Ba3 Banc of America Alternative Loan Trust 2004-6, 5.0%, 7/25/19 18,654 36,099 CCC/NR Banc of America Funding 2005-8 Trust, 5.5%, 1/25/36 36,326 92,587 NR/Caa2 Bayview Commercial Asset Trust, 3.89%, 9/25/37 (Step) (144A) 8,527 143,193 4.70 NR/Caa2 Bayview Commercial Asset Trust, Floating Rate Note, 7/25/37 (144A) 7,374 17,351 4.79 A+/Ba1 CHL Mortgage Pass-Through Trust 2003-56, Floating Rate Note, 12/25/33 17,352 100,000 5.03 NR/Aaa Citigroup Commercial Mortgage Trust 2005-EMG, Floating Rate Note, 9/20/51 (144A) 101,173 50,000 0.37 AA/Aaa Citigroup Commercial Mortgage Trust 2007-FL3A, Floating Rate Note, 4/15/22 (144A) 49,263 The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 19 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 29,863 NR/Baa1 Citigroup Mortgage Loan Trust, Inc., 6.75%, 8/25/34 $ 31,817 100,000 4.65 AA-/A1 City Center Trust 2011-CCHP, Floating Rate Note, 7/15/28 (144A) 100,392 100,000 NR/Aaa COMM 2012-LC4 Mortgage Trust, 4.063%, 12/10/44 110,046 50,000 AAA/Aaa COMM 2013-LC6 Mortgage Trust, 2.941%, 1/10/46 51,525 3,125 CCC/NR First Horizon Mortgage Pass-Through Trust 2006-1, 6.0%, 5/25/36 3,126 25,000 AA-/NR GS Mortgage Securities Corp., II, 3.682%, 2/10/46 (144A) 25,915 100,000 1.95 NR/A3 GS Mortgage Securities Corp., II, Floating Rate Note, 11/8/29 (144A) 100,404 50,000 NR/Aaa GS Mortgage Securities Corp., II, 3.377%, 5/10/45 53,744 50,000 NR/Aaa GS Mortgage Securities Corp., II, 5.56%, 11/10/39 56,890 93,566 2.50 A+/NR GSR Mortgage Loan Trust 2003-9, Floating Rate Note, 8/25/33 94,380 100,000 2.57 A/A2 JP Morgan Chase Commercial Mortgage Securities Corp., Floating Rate Note, 10/15/25 (144A) 101,318 48,158 0.56 NR/Ba1 JP Morgan Chase Commercial Mortgage Securities Trust 2006-FL2, Floating Rate Note, 11/15/18 (144A) 45,388 35,000 NR/Aaa JP Morgan Chase Commercial Mortgage Securities Trust 2011-C5, 4.171%, 8/15/46 39,600 13,744 4.86 AA+/Baa1 JP Morgan Mortgage Trust 2004-A1, Floating Rate Note, 2/25/34 13,995 150,132 2.80 A+/NR JP Morgan Mortgage Trust 2004-A2, Floating Rate Note, 5/25/34 151,530 32,671 5.62 BBB+/NR LB-UBS Commercial Mortgage Trust 2002-C4, Floating Rate Note, 10/15/35 (144A) 32,626 1,223 5.41 AAA/Aaa Lehman Brothers Small Balance Commercial Mortgage Trust 2006-3, Floating Rate Note, 12/25/36 (144A) 1,232 25,000 1.30 A+/B1 MASTR Adjustable Rate Mortgages Trust 2004-11, Floating Rate Note, 11/25/34 22,177 7,997 BB+/NR MASTR Alternative Loan Trust 2004-10, 5.5%, 10/25/19 8,220 3,687 AAA/NR MASTR Alternative Loan Trust 2004-13, 4.5%, 1/25/15 3,694 The accompanying notes are an integral part of these financial statements. 20 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 48,700 B-/NR MASTR Alternative Loan Trust 2004-6, 6.0%, 7/25/34 $ 49,687 18,870 A+/NR MASTR Alternative Loan Trust 2005-1, 5.5%, 2/25/35 18,839 60,770 6.60 A-/NR MASTR Seasoned Securitization Trust 2005-1, Floating Rate Note, 9/25/32 63,696 18,352 0.66 A+/A3 Merrill Lynch Mortgage Investors Trust Series MLCC 2004-A, Floating Rate Note, 4/25/29 17,920 27,955 0.66 AA+/Ba3 Merrill Lynch Mortgage Investors Trust Series MLCC 2005-A, Floating Rate Note, 3/25/30 26,564 100,000 NR/NR Morgan Stanley Re-REMIC Trust 2010-R9, 5.0%, 11/26/36 (144A) 106,185 GBP 95,807 0.91 AA+/NR Paragon Secured Finance Plc, Floating Rate Note, 11/15/35 144,668 6,153 BB+/B2 RAAC Series 2004-SP2 Trust, 6.0%, 1/25/32 6,277 EURO 59,581 0.63 AAA/A1 Rams Mortgage Securities Pty, Ltd., Floating Rate Note, 7/21/35 76,106 AUD 47,665 3.75 AAA/A1 Rams Mortgage Securities Pty, Ltd., Floating Rate Note, 7/21/35 49,091 31,761 1.60 B-/Ba1 RESI Finance LP, Floating Rate Note, 9/10/35 (144A) 27,659 13,119 B-/NR Residential Asset Securitization Trust 2004-A10, 5.5%, 2/25/35 13,395 28,343 B/NR Residential Asset Securitization Trust 2004-A9, 5.75%, 12/25/34 28,995 18,934 CCC/NR Residential Asset Securitization Trust 2005-A9, 5.5%, 7/25/35 19,079 71,383 CCC/NR RFMSI Series 2005-S6 Trust, 5.25%, 8/25/35 73,384 25,503 0.42 BBB+/Ba3 Sequoia Mortgage Trust 2005-2, Floating Rate Note, 3/20/35 23,738 56,790 2.69 A+/Baa3 Structured Asset Securities Corp., Mortgage Certificates Series 2003-31A, Floating Rate Note, 10/25/33 57,784 50,000 AAA/Aa1 Timberstar Trust, 5.668%, 10/15/36 (144A) 57,111 5,178,003 0.14 AAA/Aaa Wachovia Bank Commercial Mortgage Trust Series 2006-C26, Floating Rate Note, 6/15/45 601 81,083 2.44 BBB+/NR WaMu Mortgage Pass-Through Certificates, Floating Rate Note, 1/25/35 81,295 84,059 NR/Aaa Wells Fargo Commercial Mortgage Trust, 3.349%, 11/15/43 (144A) 90,407 The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 21 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 17,826 BB+/Ba2 Wells Fargo Mortgage Backed Securities 2005-9 Trust, 5.5%, 10/25/35 $ 18,179 11,883 AA+/A1 Wells Fargo Mortgage Backed Securities 2006-16 Trust, 5.0%, 11/25/36 12,298 39,718 NR/Caa1 Wells Fargo Mortgage Backed Securities 2006-2 Trust, 5.75%, 3/25/36 40,112 50,000 AA-/NR WFDB Commercial Mortgage Trust, 5.914%, 7/5/24 (144A) 51,427 ------------- $ 2,766,901 ------------- Total Banks $ 2,766,901 ----------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 3.5% Other Diversified Financial Services -- 1.9% 12,192 3.00 AA+/NR Banc of America Mortgage 2004-E Trust, Floating Rate Note, 6/25/34 $ 12,183 8,330 5.07 BBB+/NR Banc of America Mortgage 2005-H Trust, Floating Rate Note, 9/25/35 8,335 22,052 A+/NR Banc of America Mortgage Trust 2004-11, 5.75%, 1/25/35 22,601 15,054 A+/NR Banc of America Mortgage Trust 2004-9, 5.5%, 11/25/34 15,702 4,673 NR/B1 Citicorp Mortgage Securities Trust Series 2006-1, 5.0%, 2/25/36 4,948 100,000 5.58 NR/Aa2 DBUBS 2011-LC3 Mortgage Trust, Floating Rate Note, 8/10/44 (144A) 118,581 GBP 47,006 0.74 A+/Aaa Epic Ayton Plc, Floating Rate Note, 10/28/16 72,852 27,187 B+/Baa3 JP Morgan Mortgage Trust 2004-S1, 5.0%, 9/25/34 28,045 19,290 B-/Ba2 JP Morgan Mortgage Trust 2004-S1, 6.0%, 9/25/34 19,804 23,327 0.75 NR/Baa3 RALI Series 2002-QS16 Trust, Floating Rate Note, 10/25/17 22,086 67,898 BBB+/Ba1 RALI Series 2004-QS1 Trust, 4.25%, 1/25/34 68,593 12,031 0.75 BBB+/Ba1 RALI Series 2004-QS1 Trust, Floating Rate Note, 1/25/34 11,620 35,285 NR/B1 RALI Series 2004-QS13 Trust, 5.0%, 9/25/19 36,275 11,557 NR/B3 RALI Series 2004-QS16 Trust, 5.5%, 12/25/34 11,885 119,523 BBB+/NR RALI Series 2004-QS4 Trust, 4.0%, 3/25/34 121,791 ------------- $ 575,301 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 22 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Specialized Finance -- 1.6% 600 AAA/NR COBALT CMBS Commercial Mortgage Trust 2006-C1, 5.174%, 8/15/48 $ 601 CAD 250,000 4.74 NR/Aaa Merrill Lynch Financial Assets, Inc., Floating Rate Note, 1/12/40 269,920 CAD 57,640 4.71 AAA/Aaa Merrill Lynch Financial Assets, Inc., Floating Rate Note, 3/12/49 60,793 EURO 100,000 1.46 AAA/Aaa Permanent Master Issuer Plc, Floating Rate Note, 7/15/42 133,934 ------------- $ 465,248 ------------- Total Diversified Financials $ 1,040,549 ----------------------------------------------------------------------------------------------------- REAL ESTATE -- 1.1% Mortgage REIT -- 1.1% 6,929 1.55 AA+/A3 Credit Suisse First Boston Mortgage Securities Corp., Floating Rate Note, 12/25/33 $ 6,820 50,000 6.45 D/Caa2 Credit Suisse First Boston Mortgage Securities Corp., Floating Rate Note, 9/15/34 (144A) 23,854 25,000 4.29 A-/NR FREMF Mortgage Trust Class B, Floating Rate Note, 7/25/48 (144A) 27,073 25,000 4.35 NR/A3 FREMF Mortgage Trust, Floating Rate Note, 1/25/46 (144A) 27,132 25,000 4.77 NR/A3 FREMF Mortgage Trust, Floating Rate Note, 4/25/44 (144A) 27,664 50,000 4.89 NR/A3 FREMF Mortgage Trust, Floating Rate Note, 7/25/44 (144A) 56,074 100,000 4.16 NR/Baa2 FREMF Mortgage Trust, Floating Rate Note, 9/25/44 (144A) 104,043 45,000 5.16 NR/NR FREMF Mortgage Trust, Floating Rate Note, 9/25/45 (144A) 51,376 ------------- $ 324,036 ------------- Total Real Estate $ 324,036 ----------------------------------------------------------------------------------------------------- GOVERNMENT -- 1.0% 20,000 NR/NR Fannie Mae REMICS, 4.5%, 6/25/29 $ 22,249 66,252 NR/NR Fannie Mae REMICS, 6.0%, 3/25/35 69,741 27,548 NR/NR Freddie Mac REMICS, 5.0%, 6/15/34 28,405 1,849 NR/NR Freddie Mac REMICS, 5.5%, 2/15/33 1,849 50,000 NR/NR Government National Mortgage Association, 4.5%, 9/20/39 56,821 14,942 NR/NR Government National Mortgage Association, 5.25%, 8/16/35 17,674 647,366 0.56 NR/NR Government National Mortgage Association, Floating Rate Note, 11/16/51 24,817 The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 23 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Government -- (continued) 246,562 1.03 NR/NR Government National Mortgage Association, Floating Rate Note, 2/16/53 $ 21,529 295,211 1.10 NR/NR Government National Mortgage Association, Floating Rate Note, 8/16/52 23,002 344,776 1.07 NR/NR Government National Mortgage Association, Floating Rate Note, 9/16/52 31,699 ------------- $ 297,786 ------------- Total Government $ 297,786 ----------------------------------------------------------------------------------------------------- TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $4,306,810) $ 4,429,272 ----------------------------------------------------------------------------------------------------- CORPORATE BONDS -- 33.2% ENERGY -- 4.0% Oil & Gas Drilling -- 0.1% 25,000 BBB+/Baa1 Pride International, Inc., 6.875%, 8/15/20 $ 31,773 ----------------------------------------------------------------------------------------------------- Oil & Gas Equipment & Services -- 0.2% 25,000 BBB-/Baa2 Weatherford International, Ltd., Bermuda, 5.95%, 4/15/42 $ 27,365 25,000 BBB-/Baa2 Weatherford International, Ltd., Bermuda, 9.625%, 3/1/19 33,057 ------------- $ 60,422 ----------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 1.6% 50,000 B-/B3 Carrizo Oil & Gas, Inc., 8.625%, 10/15/18 $ 55,375 50,000 B/B2 EP Energy LLC, 9.375%, 5/1/20 58,250 90,000 B/B2 Linn Energy LLC, 6.25%, 11/1/19 (144A) 94,050 51,000 B/B2 Linn Energy LLC, 8.625%, 4/15/20 56,992 23,000 BBB/Baa2 Marathon Oil Corp., 5.9%, 3/15/18 27,484 70,000 B/B1 Plains Exploration & Production Co., 6.75%, 2/1/22 79,100 100,000 BB/Ba3 Range Resources Corp., 5.0%, 3/15/23 (144A) 106,500 ------------- $ 477,751 ----------------------------------------------------------------------------------------------------- Oil & Gas Refining & Marketing -- 0.4% 40,000 A/A2 Motiva Enterprises LLC, 5.75%, 1/15/20 (144A) $ 48,508 25,000 BBB/Baa2 Spectra Energy Capital LLC, 6.2%, 4/15/18 30,255 21,000 BBB/Baa2 Valero Energy Corp., 9.375%, 3/15/19 28,862 ------------- $ 107,625 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 24 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation -- 1.2% 25,000 BBB-/Baa3 Buckeye Partners LP, 6.05%, 1/15/18 $ 28,462 25,000 BBB/Baa2 DCP Midstream LLC, 9.75%, 3/15/19 (144A) 33,020 65,000 7.00 BBB-/Baa2 Enterprise Products Operating LLC, Floating Rate Note, 6/1/67 70,200 70,000 BBB/Baa2 Kinder Morgan Energy Partners LP, 4.15%, 3/1/22 76,285 10,000 BBB/Baa2 Kinder Morgan Energy Partners LP, 5.95%, 2/15/18 12,006 25,000 BBB/Baa2 Plains All American Pipeline LP, 6.125%, 1/15/17 29,345 10,000 A/A3 Questar Pipeline Co., 5.83%, 2/1/18 11,687 10,000 BBB/Baa2 Spectra Energy Capital LLC, 6.75%, 7/15/18 11,778 60,000 BBB-/Baa3 Sunoco Logistics Partners Operations LP 6.1%, 2/15/42 69,988 13,000 BBB-/Baa3 The Williams Companies, Inc., 7.75%, 6/15/31 16,586 ------------- $ 359,357 ----------------------------------------------------------------------------------------------------- Coal & Consumable Fuels -- 0.5% 45,000 B+/B2 Alpha Natural Resources, Inc., 6.0%, 6/1/19 $ 42,075 25,000 BB-/B1 Berau Coal Energy Tbk PT, 7.25%, 3/13/17 (144A) 24,812 75,000 B-/B2 Penn Virginia Resource Partners LP, 8.375%, 6/1/20 81,094 ------------- $ 147,981 ------------- Total Energy $ 1,184,909 ----------------------------------------------------------------------------------------------------- MATERIALS -- 1.9% Diversified Chemicals -- 0.1% 20,000 BBB/Baa2 Eastman Chemical Co., 4.8%, 9/1/42 $ 21,740 ----------------------------------------------------------------------------------------------------- Construction Materials -- 0.6% 150,000 B/NR Cemex SAB de CV, 5.875%, 3/25/19 (144A) $ 152,625 30,000 BBB/Baa2 Holcim US Finance Sarl & Cie SCS, 6.0%, 12/30/19 (144A) 35,240 ------------- $ 187,865 ----------------------------------------------------------------------------------------------------- Aluminum -- 0.1% 25,000 BBB-/Baa3 Alcoa, Inc., 6.15%, 8/15/20 $ 27,252 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 25 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Diversified Metals & Mining -- 0.4% 50,000 BBB-/Baa2 AngloGold Ashanti Holdings Plc, 5.125%, 8/1/22 $ 50,362 35,000 BBB-/Baa2 AngloGold Ashanti Holdings Plc, 5.375%, 4/15/20 36,692 45,000 BBB/Baa3 Freeport-McMoRan Copper & Gold, Inc., 3.875%, 3/15/23 (144A) 45,359 ------------- $ 132,413 ----------------------------------------------------------------------------------------------------- Gold -- 0.1% 35,000 BBB+/Baa2 Goldcorp, Inc., 3.7%, 3/15/23 $ 35,302 ----------------------------------------------------------------------------------------------------- Steel -- 0.6% 30,000 BB+/Ba1 ArcelorMittal SA, 6.125%, 6/1/18 $ 32,862 25,000 BB+/Ba2 Commercial Metals Co., 7.35%, 8/15/18 27,625 100,000 NR/B3 Metinvest BV, 10.25%, 5/20/15 (144A) 106,750 ------------- $ 167,237 ------------- Total Materials $ 571,809 ----------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 1.5% Aerospace & Defense -- 0.2% 50,000 BB/Ba2 Bombardier, Inc., 4.25%, 1/15/16 (144A) $ 52,188 ----------------------------------------------------------------------------------------------------- Building Products -- 0.4% 25,000 BBB-/Ba3 Masco Corp., 5.95%, 3/15/22 $ 28,295 85,000 BBB-/Ba3 Masco Corp., 7.125%, 3/15/20 99,003 ------------- $ 127,298 ----------------------------------------------------------------------------------------------------- Electrical Components & Equipment -- 0.1% 25,000 B/B3 WireCo WorldGroup, Inc., 9.5%, 5/15/17 $ 25,875 ----------------------------------------------------------------------------------------------------- Construction & Farm Machinery & Heavy Trucks -- 0.3% 60,000 A/A3 Cummins, Inc., 5.65%, 3/1/98 $ 63,650 10,000 A/A3 Cummins, Inc., 6.75%, 2/15/27 12,738 ------------- $ 76,388 ----------------------------------------------------------------------------------------------------- Industrial Machinery -- 0.1% 15,000 BBB+/Baa1 Ingersoll-Rand Global Holding Co., Ltd., 9.5%, 4/15/14 $ 16,201 20,000 BBB-/Baa3 Valmont Industries, Inc., 6.625%, 4/20/20 23,867 ------------- $ 40,068 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 26 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Trading Companies & Distributors -- 0.4% 55,000 BB+/NR Aviation Capital Group Corp., 6.75%, 4/6/21 (144A) $ 61,407 40,000 BBB/Baa2 GATX Corp., 6.0%, 2/15/18 46,414 ------------- $ 107,821 ------------- Total Capital Goods $ 429,638 ----------------------------------------------------------------------------------------------------- TRANSPORTATION -- 1.1% Air Freight & Logistics -- 0.3% 75,000 CC/B3 CEVA Group Plc, 8.375%, 12/1/17 (144A) $ 74,812 ----------------------------------------------------------------------------------------------------- Airlines -- 0.7% 100,000 NR/Baa3 Air Canada 2013-1 Class A Pass Through Trust, 4.125%, 5/15/25 (144A) $ 102,000 13,040 A-/Baa2 Delta Air Lines 2010-2 Class A Pass Through Trust, 4.95%, 5/23/19 14,311 100,000 BBB/Ba1 US Airways 2013-1 Class A Pass Through Trust, 3.95%, 11/15/25 100,500 ------------- $ 216,811 ----------------------------------------------------------------------------------------------------- Railroads -- 0.1% 25,000 BBB+/A3 Burlington Northern Santa Fe LLC, 5.75%, 3/15/18 $ 30,062 ------------- Total Transportation $ 321,685 ----------------------------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 0.7% Auto Parts & Equipment -- 0.4% 100,000 B+/B2 Pittsburgh Glass Works LLC, 8.5%, 4/15/16 (144A) $ 103,000 12,000 B+/B1 Tower Automotive Holdings USA LLC, 10.625%, 9/1/17 (144A) 12,765 ------------- $ 115,765 ----------------------------------------------------------------------------------------------------- Automobile Manufacturers -- 0.3% AUD 100,000 A/A2 BMW Australia Finance, Ltd., 6.5%, 2/28/14 $ 106,040 ------------- Total Automobiles & Components $ 221,805 ----------------------------------------------------------------------------------------------------- Consumer Durables & Apparel -- 0.1% Home Furnishings -- 0.1% 25,000 BBB-/Ba1 Mohawk Industries, Inc., 3.85%, 2/1/23 $ 26,102 ------------- Total Consumer Durables & Apparel $ 26,102 ----------------------------------------------------------------------------------------------------- CONSUMER SERVICES -- 0.7% Casinos & Gaming -- 0.1% 25,000 BBB/Baa2 International Game Technology Co., 7.5%, 6/15/19 $ 29,993 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 27 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Education Services -- 0.6% 25,000 NR/Aa2 Bowdoin College, 4.693%, 7/1/12 $ 23,941 25,000 AAA/Aaa Massachusetts Institute of Technology, 5.6%, 7/1/11 35,106 75,000 AA-/Aa2 Tufts University, 5.017%, 4/15/12 84,394 37,000 AAA/Aaa Yale University, 2.9%, 10/15/14 38,396 ------------- $ 181,837 ------------- Total Consumer Services $ 211,830 ----------------------------------------------------------------------------------------------------- MEDIA -- 0.3% Broadcasting -- 0.2% 50,000 B-/B3 Telesat Canada, Inc. 12.5%, 11/1/17 $ 53,188 ----------------------------------------------------------------------------------------------------- Cable & Satellite -- 0.1% 25,000 BBB+/Baa1 British Sky Broadcasting Group Plc, 6.1%, 2/15/18 (144A) $ 29,834 10,000 BBB/Baa2 Time Warner Cable, Inc., 8.25%, 4/1/19 13,123 5,000 BBB/Baa2 Time Warner Cable, Inc., 8.75%, 2/14/19 6,685 ------------- $ 49,642 ------------- Total Media $ 102,830 ----------------------------------------------------------------------------------------------------- RETAILING -- 0.2% Internet Retail -- 0.2% 50,000 BBB-/Ba1 Expedia, Inc., 5.95%, 8/15/20 $ 56,020 ------------- Total Retailing $ 56,020 ----------------------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 0.1% Drug Retail -- 0.1% 14,186 BBB+/Baa2 CVS Pass-Through Trust, 5.773%, 1/10/33 (144A) $ 16,882 ------------- Total Food & Staples Retailing $ 16,882 ----------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 1.3% Brewers -- 0.1% 20,000 A/A3 Anheuser-Busch InBev Worldwide, Inc., 7.75%, 1/15/19 $ 26,383 ----------------------------------------------------------------------------------------------------- Agricultural Products -- 0.2% 50,000 BBB/Baa2 Viterra, Inc., 5.95%, 8/1/20 (144A) $ 54,549 ----------------------------------------------------------------------------------------------------- Packaged Foods & Meats -- 1.0% 70,000 BBB/Baa2 Kraft Foods Group, Inc., 3.5%, 6/6/22 $ 74,632 45,000 BBB-/Baa2 Mondelez International, Inc., 6.5%, 2/9/40 60,806 150,000 B+/B1 Post Holdings, Inc., 7.375%, 2/15/22 166,500 ------------- $ 301,938 ------------- Total Food, Beverage & Tobacco $ 382,870 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 28 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 0.8% Health Care Equipment -- 0.3% 100,000 BB/B2 Hologic, Inc., 6.25%, 8/1/20 $ 108,000 ----------------------------------------------------------------------------------------------------- Health Care Services -- 0.2% 50,000 AA-/Aa3 Catholic Health Initiatives, 4.35%, 11/1/42 $ 51,074 ----------------------------------------------------------------------------------------------------- Health Care Technology -- 0.3% 75,000 B-/B3 MedAssets, Inc., 8.0%, 11/15/18 $ 82,688 ------------- Total Health Care Equipment & Services $ 241,762 ----------------------------------------------------------------------------------------------------- BANKS -- 6.3% Diversified Banks -- 5.0% NOK 250,000 AAA/Aaa Asian Development Bank, Ltd., 3.375%, 5/20/14 $ 44,078 EURO 50,000 NR/Aaa AXA Bank Europe SCF, 3.5%, 11/5/20 75,261 AUD 100,000 AA-/Aa2 Cooperatieve Centrale Raiffeisen-Boerenleenbank BA Australia, 6.0%, 10/29/15 108,796 75,000 AA-/Aa2 Cooperatieve Centrale Raiffeisen-Boerenleenbank BA Netherlands, 3.875%, 2/8/22 81,457 TRY 40,000 AA-/Aa2 Cooperatieve Centrale Raiffeisen-Boerenleenbank BA Netherlands, 3/3/15 20,275 EURO 50,000 NR/Aaa Cooperatieve Centrale Raiffeisen-Boerenleenbank BA Netherlands, 6.875%, 3/19/20 74,428 IDR 850,000,000 NR/Aaa Inter-American Development Bank, Ltd., 4.5%, 2/4/16 88,499 AUD 50,000 AAA/Aaa Inter-American Development Bank, Ltd., 6.5%, 8/20/19 59,801 NOK 1,500,000 AAA/Aaa International Bank for Reconstruction & Development, Ltd., 3.25%, 4/14/14 263,575 AUD 185,000 AAA/Aaa International Bank for Reconstruction & Development, Ltd., 5.75%, 10/21/19 213,649 BRL 400,000 AAA/Aaa International Finance Corp., 5.0%, 12/21/15 194,838 BRL 200,000 NR/NR International Finance Corp., 7.45%, 8/14/14 100,170 100,000 BBB+/Baa2 Intesa Sanpaolo S.p.A., 6.5%, 2/24/21 (144A) 108,836 50,000 4.50 NR/Baa3 Scotiabank Peru SA, Floating Rate Note, 12/13/27 (144A) 49,500 ------------- $ 1,483,163 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 29 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Regional Banks -- 1.1% 25,000 A/A1 Mellon Funding Corp., 5.5%, 11/15/18 $ 29,550 75,000 BBB/Baa1 SunTrust Banks, Inc., 3.5%, 1/20/17 80,516 65,000 8.25 BBB/Baa3 The PNC Financial Services Group, Inc., Floating Rate Note, 5/29/49 (Perpetual) 65,131 115,000 6.75 BBB/Baa3 The PNC Financial Services Group, Inc., Floating Rate Note, 7/29/49 (Perpetual) 132,077 20,000 A+/A1 Wachovia Bank NA, 6.0%, 11/15/17 23,961 ------------- $ 331,235 ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- 0.2% 50,000 BBB-/Baa2 Astoria Financial Corp., 5.0%, 6/19/17 $ 53,687 ------------- Total Banks $ 1,868,085 ----------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 4.8% Other Diversified Financial Services -- 1.8% 25,000 A-/NR Carlyle Holdings Finance LLC, 3.875%, 2/1/23 (144A) $ 26,072 TRY 65,000 AAA/Aaa European Investment Bank, Ltd., 0.0%, 3/2/15 (c) 33,426 100,000 7.12 AA-/Baa1 General Electric Capital Corp., Floating Rate Note, 12/29/49 (Perpetual) 117,064 NZD 100,000 A/A2 JPMorgan Chase & Co., 4.25%, 11/2/18 85,202 25,000 A/A2 JPMorgan Chase & Co., 6.0%, 1/15/18 29,801 100,000 7.90 BBB/Ba1 JPMorgan Chase & Co., Floating Rate Note (Perpetual) 116,466 100,000 A-/NR KKR Group Finance Co., II LLC, 5.5%, 2/1/43 (144A) 99,526 25,000 NR/NR Unison Ground Lease Funding LLC, 2.981%, 3/15/20 (144A) 25,037 ------------- $ 532,594 ----------------------------------------------------------------------------------------------------- Specialized Finance -- 0.3% 91,000 BBB-/WR Cantor Fitzgerald LP, 7.875%, 10/15/19 (144A) $ 94,937 10,000 A+/A1 National Rural Utilities Cooperative Finance Corp., 5.45%, 2/1/18 11,920 ------------- $ 106,857 ----------------------------------------------------------------------------------------------------- Consumer Finance -- 0.3% 35,000 A+/A1 American Honda Finance Corp., 6.7%, 10/1/13 (144A) $ 35,885 25,000 A/A2 Caterpillar Financial Services Corp., 7.05%, 10/1/18 32,098 30,000 CCC+/Caa1 Springleaf Finance Corp., 6.9%, 12/15/17 31,219 ------------- $ 99,202 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 30 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Asset Management & Custody Banks -- 0.3% 25,000 A-/A3 Eaton Vance Corp., 6.5%, 10/2/17 $ 30,131 50,000 BBB/NR Prospect Capital Corp., 5.875%, 3/15/23 50,182 ------------- $ 80,313 ----------------------------------------------------------------------------------------------------- Investment Banking & Brokerage -- 2.1% 110,000 4.00 BB+/Ba2 Goldman Sachs Capital II, Floating Rate Note, 6/1/43 $ 93,830 35,000 BBB/Baa3 Jefferies Group LLC, 5.125%, 4/13/18 38,773 50,000 BBB/Baa3 Jefferies Group LLC, 6.875%, 4/15/21 59,666 25,000 BBB/Baa3 Jefferies Group LLC, 8.5%, 7/15/19 31,739 10,000 BBB/A3 Macquarie Group, Ltd., 6.0%, 1/14/20 (144A) 11,169 100,000 BBB+/Baa3 Merrill Lynch & Co., Inc., 7.75%, 5/14/38 135,434 50,000 BBB+/Baa2 Morgan Stanley Co., 4.875%, 11/1/22 53,899 10,000 A-/Baa1 Morgan Stanley Co., 5.5%, 1/26/20 11,635 45,000 A-/Baa1 Morgan Stanley Co., 6.625%, 4/1/18 53,947 25,000 BBB/Baa2 Raymond James Financial, Inc., 4.25%, 4/15/16 26,643 90,000 NR/Baa3 Scottrade Financial Services, Inc., 6.125%, 7/11/21 (144A) 93,510 ------------- $ 610,245 ------------- Total Diversified Financials $ 1,429,211 ----------------------------------------------------------------------------------------------------- INSURANCE -- 3.3% Life & Health Insurance -- 1.1% 35,000 BBB/WR Delphi Financial Group, Inc., 7.875%, 1/31/20 $ 43,705 15,000 A-/Baa2 Lincoln National Corp., 8.75%, 7/1/19 20,437 25,000 6.05 BBB/Ba1 Lincoln National Corp., Floating Rate Note, 4/20/67 25,312 35,000 BBB/Baa2 MetLife, Inc., 10.75%, 8/1/39 55,650 45,000 A-/Baa2 Protective Life Corp., 7.375%, 10/15/19 56,533 100,000 5.88 BBB+/Baa3 Prudential Financial, Inc., Floating Rate Note, 9/15/42 108,062 25,000 5.88 NR/NR Wilton Re Finance LLC, Floating Rate Note, 3/30/33 (144A) 25,659 ------------- $ 335,358 ----------------------------------------------------------------------------------------------------- Multi-line Insurance -- 0.4% 60,000 BBB/A3 AXA SA, 8.6%, 12/15/30 $ 77,343 40,000 BBB-/Baa3 Genworth Holdings, Inc., 7.2%, 2/15/21 48,295 ------------- $ 125,638 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 31 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Property & Casualty Insurance -- 1.3% 20,000 BBB-/Baa2 OneBeacon US Holdings, Inc., 4.6%, 11/9/22 $ 21,161 95,000 7.51 BB+/Ba2 Sirius International Group, Ltd., Floating Rate Note, 5/29/49 (Perpetual) (144A) 100,554 110,000 6.50 BBB/Baa1 The Allstate Corp., Floating Rate Note, 5/15/57 122,870 50,000 BBB-/Baa3 The Hanover Insurance Group, Inc., 7.5%, 3/1/20 59,360 50,000 BBB-/Baa3 The Hanover Insurance Group, Inc., 7.625%, 10/15/25 62,452 ------------- $ 366,397 ----------------------------------------------------------------------------------------------------- Reinsurance -- 0.5% 50,000 BBB/NR Montpelier Re Holdings, Ltd., 4.7%, 10/15/22 $ 52,230 40,000 BBB/NR Platinum Underwriters Finance, Inc., 7.5%, 6/1/17 46,313 35,000 6.75 BBB-/Baa3 Reinsurance Group of America, Inc., Floating Rate Note, 12/15/65 35,612 ------------- $ 134,155 ------------- Total Insurance $ 961,548 ----------------------------------------------------------------------------------------------------- REAL ESTATE -- 1.3% Diversified REIT -- 0.1% 20,000 BBB/Baa2 Digital Realty Trust LP, 4.5%, 7/15/15 $ 21,333 10,000 BBB/Baa2 Digital Realty Trust LP, 5.875%, 2/1/20 11,693 ------------- $ 33,026 ----------------------------------------------------------------------------------------------------- Office REIT -- 0.4% 40,000 BBB-/Baa2 Alexandria Real Estate Equities, Inc., 4.6%, 4/1/22 $ 44,128 35,000 BBB-/Baa3 Highwoods Realty LP, 3.625%, 1/15/23 35,110 25,000 BBB/Baa2 Mack-Cali Realty LP, 5.125%, 2/15/14 25,751 ------------- $ 104,989 ----------------------------------------------------------------------------------------------------- Retail REIT -- 0.1% 35,000 BBB-/Baa3 DDR Corp., 7.5%, 4/1/17 $ 42,019 ----------------------------------------------------------------------------------------------------- Specialized REIT -- 0.6% 10,000 BBB/Baa2 Health Care Real Estate Investment Trust, Inc., 6.2%, 6/1/16 $ 11,471 25,000 BBB-/Baa3 Healthcare Realty Trust, Inc., 6.5%, 1/17/17 28,845 40,000 BBB-/Baa2 Hospitality Properties Trust, 5.0%, 8/15/22 43,445 25,000 BBB-/Baa2 Hospitality Properties Trust, 7.875%, 8/15/14 26,264 The accompanying notes are an integral part of these financial statements. 32 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- Specialized REIT -- (continued) 45,000 BBB-/Baa3 Senior Housing Properties Trust, 6.75%, 4/15/20 $ 52,320 ------------- $ 162,345 ----------------------------------------------------------------------------------------------------- Diversified Real Estate Activities -- 0.1% 35,000 A-/A2 WEA Finance LLC, 7.125%, 4/15/18 (144A) $ 43,510 ------------- Total Real Estate $ 385,889 ----------------------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.1% Semiconductor Equipment -- 0.1% 25,000 BBB/Baa1 KLA-Tencor Corp., 6.9%, 5/1/18 $ 30,098 ------------- Total Semiconductors & Semiconductor Equipment $ 30,098 ----------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 2.3% Integrated Telecommunication Services -- 1.2% CHF 40,000 BBB+/Baa1 Deutsche Telekom AG, 3.75%, 4/22/14 $ 44,481 30,000 BB-/Ba2 Frontier Communications Corp., 8.5%, 4/15/20 34,500 45,000 NR/A2 GTP Acquisition Partners I LLC, 4.347%, 6/15/16 (144A) 47,840 45,000 NR/A2 GTP Towers Issuer LLC, 4.436%, 2/15/15 (144A) 47,003 20,000 A/A2 Qtel International Finance, Ltd., 6.5%, 6/10/14 (144A) 21,150 EURO 50,000 BBB/Baa2 Telefonica Emisiones SAU, 5.496%, 4/1/16 73,090 75,000 BBB/Baa2 Telefonica Emisiones SAU, 6.221%, 7/3/17 85,566 ------------- $ 353,630 ----------------------------------------------------------------------------------------------------- Wireless Telecommunication Services -- 1.1% 35,000 B+/Ba2 Cricket Communications, Inc., 7.75%, 5/15/16 $ 36,400 30,000 NR/A2 Crown Castle Towers LLC, 4.883%, 8/15/20 (144A) 34,624 75,000 B/Ba3 MetroPCS Wireless, Inc., 6.625%, 11/15/20 81,188 RUB 5,000,000 BB/Ba3 VimpelCom Holdings BV, 9.0%, 2/13/18 (144A) 168,248 ------------- $ 320,460 ------------- Total Telecommunication Services $ 674,090 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 33 Schedule of Investments | 4/30/13 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- UTILITIES -- 1.3% Electric Utilities -- 1.1% 10,000 A-/A3 Commonwealth Edison Co., 6.15%, 9/15/17 $ 12,096 25,000 BBB/Baa2 Commonwealth Edison Co., 6.95%, 7/15/18 30,765 100,000 5.25 BBB+/A3 Electricite de France SA, Floating Rate Note, 1/29/49 (Perpetual) (144A) 100,587 10,000 6.70 BB+/Ba1 PPL Capital Funding, Inc., Floating Rate Note, 3/30/67 10,625 70,000 BBB/Baa3 Public Service Co. of New Mexico, 7.95%, 5/15/18 87,493 50,000 6.25 BBB-/Baa2 Southern California Edison Co., Floating Rate Note, 8/1/49 (Perpetual) 55,804 10,000 BBB+/A3 West Penn Power Co., 5.95%, 12/15/17 (144A) 11,768 ------------- $ 309,138 ----------------------------------------------------------------------------------------------------- Multi-Utilities -- 0.1% 25,000 BBB+/Baa1 New York State Electric & Gas Corp., 6.15%, 12/15/17 (144A) $ 28,166 ----------------------------------------------------------------------------------------------------- Independent Power Producers & Energy Traders -- 0.1% 36,457 BBB-/Baa3 Panoche Energy Center LLC, 6.885%, 7/31/29 (144A) $ 37,587 ------------- Total Utilities $ 374,891 ----------------------------------------------------------------------------------------------------- GOVERNMENT -- 1.1% 200,000 BBB/NR Brazil Minas SPE via State of Minas Gerais, 5.333%, 2/15/28 (144A) $ 226,400 TRY 50,000 AAA/NR European Bank for Reconstruction & Development, 0.5%, 2/26/15 25,786 GBP 50,000 AAA/NR European Bank for Reconstruction & Development, 1.875%, 12/10/13 78,309 ------------- $ 330,495 ------------- Total Government $ 330,495 ----------------------------------------------------------------------------------------------------- TOTAL CORPORATE BONDS (Cost $8,907,238) $ 9,822,449 ----------------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- 4.1% 260,911 AAA/Aaa Fannie Mae, 3.5%, 9/1/42 $ 279,399 46,180 AAA/Aaa Fannie Mae, 4.5%, 4/1/41 49,863 48,665 AAA/Aaa Fannie Mae, 5.0%, 6/1/40 53,425 250,150 AAA/Aaa Federal Home Loan Mortgage Corp., 5.0%, 9/1/38-10/1/38 268,545 The accompanying notes are an integral part of these financial statements. 34 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 ----------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value ----------------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 78,619 AAA/Aaa Federal Home Loan Mortgage Corp., 6.0%, 8/1/37 $ 87,412 187,431 AAA/Aaa Federal Home Loan Mortgage Corp., 6.5%, 1/1/38-4/1/38 213,647 106,774 AAA/Aaa Government National Mortgage Association II, 4.5%, 9/20/41 118,221 60,000 AA+/Aaa U.S. Treasury Bonds, 4.5%, 2/15/36 78,975 60,000 AA+/Aaa U.S. Treasury Bonds, 4.5%, 8/15/39 79,650 ------------- $ 1,229,137 ----------------------------------------------------------------------------------------------------- TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS (Cost $1,152,686) $ 1,229,137 ----------------------------------------------------------------------------------------------------- FOREIGN GOVERNMENT BONDS -- 34.9% AUD 100,000 NR/Aaa Australia Government Bond, 5.75%, 5/15/21 $ 123,745 AUD 200,000 NR/Aaa Australia Government Bond, 6.5%, 5/15/13 207,506 EURO 50,000 AA+/Aaa Austria Government Bond, 4.15%, 3/15/37 (144A) 87,238 EURO 50,000 AA+/Aaa Austria Government Bond, 4.35%, 3/15/19 (144A) 79,266 EURO 25,000 NR/Aa3 Belgium Government Bond, 5.5%, 3/28/28 45,551 EURO 100,000 NR/Aaa Bundesrepublik Deutschland, 3.25%, 1/4/20 154,503 EURO 125,000 NR/Aaa Bundesrepublik Deutschland, 6.5%, 7/4/27 265,385 CAD 10,000 AAA/Aaa Canada Housing Trust No. 1, 3.35%, 12/15/20 (144A) 10,958 CAD 100,000 AAA/Aaa Canada Housing Trust No. 1, 3.8%, 6/15/21 (144A) 113,000 200,000 BB+/Ba1 Croatia Government International Bond, 5.5%, 4/4/23 (144A) 212,430 CZK 500,000 AA/A1 Czech Republic Government Bond, 3.7%, 6/16/13 25,606 DKK 250,000 AAA/Aaa Denmark Government Bond, 4.5%, 11/15/39 67,096 COP 124,000,000 NR/Ba1 Empresa de Telecomunicaciones de Bogota, 7.0%, 1/17/23 (144A) 72,037 EURO 300,000 AAA/Aaa Finland Government Bond, 4.375%, 7/4/19 480,665 GHS 10,000 NR/NR Ghana Government Bond, 16.9%, 3/7/16 4,908 GHS 380,000 NR/NR Ghana Government Bond, 21.0%, 10/26/15 202,115 IDR 200,000,000 BB+/NR Indonesia Recapitalization Bond, 14.25%, 6/15/13 20,834 The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 35 Schedule of Investments | 4/30/13 (unaudited) (continued) -------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value -------------------------------------------------------------------------------------------------------- Foreign Government Bonds -- (continued) IDR 100,000,000 BB+/NR Indonesia Recapitalization Bond, 14.275%, 12/15/13 $ 10,922 IDR 222,000,000 NR/Baa3 Indonesia Treasury Bond, 6.125%, 5/15/28 22,840 IDR 200,000,000 NR/Baa3 Indonesia Treasury Bond, 7.0%, 5/15/27 22,232 IDR 5,000,000,000 NR/Baa3 Indonesia Treasury Bond, 7.375%, 9/15/16 557,517 IDR 1,210,000,000 NR/Baa3 Indonesia Treasury Bond, 8.25%, 6/15/32 149,237 IDR 25,000,000 NR/Baa3 Indonesia Treasury Bond, 9.0%, 9/15/13 2,617 EURO 90,000 BBB+/Ba1 Ireland Government Bond, 4.5%, 4/18/20 128,400 EURO 35,000 BBB+/Ba1 Ireland Government Bond, 5.0%, 10/18/20 51,418 EURO 75,000 NR/Baa2 Italy Buoni Poliennali Del Tesoro, 2.25%, 11/1/13 99,534 EURO 50,000 NR/Baa2 Italy Buoni Poliennali Del Tesoro, 3.75%, 8/1/16 69,303 EURO 100,000 NR/Baa2 Italy Buoni Poliennali Del Tesoro, 4.75%, 8/1/23 141,356 EURO 25,000 NR/Baa2 Italy Buoni Poliennali Del Tesoro, 6.5%, 11/1/27 40,531 JPY 46,500,000 NR/Aa3 Japan Government Ten Year Bond, 1.0%, 12/20/21 495,698 JPY 30,000,000 NR/Aa3 Japan Government Ten Year Bond, 1.7%, 9/20/16 323,320 JPY 5,000,000 NR/Aa3 Japan Government Thirty Year Bond, 2.3%, 12/20/36 58,966 JPY 27,000,000 NR/Aa3 Japan Government Twenty Year Bond, 1.5%, 3/20/19 296,126 MYR 885,000 NR/NR Malaysia Government Bond, 3.418%, 8/15/22 291,224 MXN 1,290,000 A-/Baa1 Mexican Bonos, 6.5%, 6/9/22 122,192 MXN 100,000 A-/Baa1 Mexican Bonos, 7.5%, 6/3/27 10,518 MXN 250,000 A-/Baa1 Mexican Bonos, 9.5%, 12/18/14 22,388 MXN 2,386,181 A-/Baa1 Mexican Udibonos, 2.0%, 6/9/22 212,614 MXN 1,988,484 A-/Baa1 Mexican Udibonos, 3.5%, 12/14/17 183,527 EURO 150,000 NR/Aaa Netherlands Government Bond, 4.0%, 7/15/16 (144A) 220,877 EURO 91,000 NR/Aaa Netherlands Government Bond, 5.5%, 1/15/28 (144A) 173,394 NGN 19,000,000 NR/NR Nigeria Government Bond, 16.0%, 6/29/19 140,323 NGN 7,000,000 NR/NR Nigeria Treasury Bill, 2/6/14 40,780 NGN 15,000,000 NR/NR Nigeria Treasury Bill, 3/6/14 86,670 NGN 25,000,000 NR/NR Nigeria Treasury Bill, 4/10/14 143,312 NGN 15,000,000 NR/NR Nigeria Treasury Bill, 4/24/14 84,707 The accompanying notes are an integral part of these financial statements. 36 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 -------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value -------------------------------------------------------------------------------------------------------- Foreign Government Bonds -- (continued) NOK 365,000 AAA/Aaa Norway Government Bond, 4.25%, 5/19/17 $ 70,611 NOK 240,000 AAA/Aaa Norway Government Bond, 4.5%, 5/22/19 48,734 NOK 875,000 AAA/Aaa Norway Government Bond, 5.0%, 5/15/15 163,133 PHP 6,480,000 NR/Ba1 Philippine Government Bond, 5.875%, 3/1/32 200,630 PHP 3,570,000 NR/Ba1 Philippine Government Bond, 7.625%, 9/29/36 137,062 PHP 800,000 NR/Ba1 Philippine Government Bond, 8.0%, 7/19/31 30,195 PLN 1,400,000 A/A2 Poland Government Bond, 5.25%, 10/25/17 489,615 NZD 250,000 AA-/Aa2 Province of Ontario Canada, 6.25%, 6/16/15 227,245 AUD 100,000 AA+/Aa1 Queensland Treasury Corp., 5.75%, 7/22/24 116,257 AUD 120,000 AA+/Aa1 Queensland Treasury Corp., 6.0%, 7/21/22 141,805 RON 770,000 NR/NR Romania Government Bond, 5.85%, 4/26/23 244,190 RON 200,000 NR/NR Romania Government Bond, 5.9%, 7/26/17 63,000 RUB 4,200,000 BBB+/Baa1 Russian Federal Bond -- OFZ, 7.5%, 3/15/18 143,861 RUB 9,000,000 BBB+/Baa1 Russian Federal Bond -- OFZ, 8.15%, 2/3/27 327,523 200,000 BBB/Baa1 Russian Foreign Bond -- Eurobond, 4.5%, 4/4/22 (144A) 224,300 200,000 B/NR Rwanda International Government Bond, 6.625%, 5/2/23 (144A) 195,720 ZAR 500,000 NR/Baa1 South Africa Government Bond, 6.75%, 3/31/21 58,158 ZAR 250,000 A-/Baa1 South Africa Government Bond, 7.5%, 1/15/14 28,308 ZAR 300,000 A-/Baa1 South Africa Government Bond, 8.0%, 12/21/18 36,947 EURO 100,000 BBB-/Baa3 Spain Government Bond, 4.1%, 7/30/18 138,593 TRY 230,000 NR/NR Turkey Government Bond, 10.5%, 1/15/20 159,468 200,000 B/B3 Ukraine Government International Bond, 7.5%, 4/17/23 (144A) 193,000 The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 37 Schedule of Investments | 4/30/13 (unaudited) (continued) -------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value -------------------------------------------------------------------------------------------------------- Foreign Government Bonds -- (continued) GBP 50,000 NR/Aa1 United Kingdom Gilt, 4.0%, 9/7/16 $ 87,046 GBP 60,000 NR/Aa1 United Kingdom Gilt, 4.25%, 12/7/27 115,945 GBP 70,000 NR/Aa1 United Kingdom Gilt, 4.25%, 9/7/39 134,376 GBP 75,000 NR/Aa1 United Kingdom Gilt, 8.75%, 8/25/17 157,332 -------------- $ 10,308,440 -------------------------------------------------------------------------------------------------------- TOTAL FOREIGN GOVERNMENT BONDS (Cost $9,938,938) $ 10,308,440 -------------------------------------------------------------------------------------------------------- MUNICIPAL BONDS -- 3.5% Municipal Airport -- 0.1% 20,000 BBB/Baa1 Indianapolis Airport Authority, 5.1%, 1/15/17 $ 22,652 -------------------------------------------------------------------------------------------------------- Municipal Development -- 0.2% 50,000 AA-/Aa3 California Statewide Communities Development Authority, 6.0%, 8/15/42 $ 60,989 -------------------------------------------------------------------------------------------------------- Municipal General -- 0.3% 70,000 AA/A2 JobsOhio Beverage System, 3.985%, 1/1/29 $ 73,048 20,000 AA/A2 JobsOhio Beverage System, 4.532%, 1/1/35 21,349 -------------- $ 94,397 -------------------------------------------------------------------------------------------------------- Higher Municipal Education -- 1.9% 25,000 A+/NR Baylor University, 4.313%, 3/1/42 $ 26,265 50,000 AAA/Aaa Connecticut State Health & Educational Facility Authority, 5.0%, 7/1/40 57,384 25,000 AAA/Aaa Connecticut State Health & Educational Facility Authority, 5.0%, 7/1/42 27,735 50,000 AAA/Aaa Houston Higher Education Finance Corp., 4.5%, 11/15/37 54,022 25,000 AA/Aa1 Illinois Finance Authority, 5.0%, 10/1/51 27,771 70,000 AAA/Aaa Massachusetts Health & Educational Facilities Authority, 5.5%, 11/15/36 83,531 25,000 AAA/Aaa Massachusetts Health & Educational Facilities Authority, 5.5%, 7/1/32 35,560 10,000 AAA/Aaa Massachusetts Health & Educational Facilities Authority, 5.5%, 7/1/36 11,802 30,000 AAA/Aaa Missouri State Health & Educational Facilities Authority, 5.0%, 11/15/39 35,513 50,000 AA/Aa1 New York State Dormitory Authority Series A, 5.0%, 7/1/40 57,554 The accompanying notes are an integral part of these financial statements. 38 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 -------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value -------------------------------------------------------------------------------------------------------- Higher Municipal Education -- (continued) 50,000 AAA/Aaa New York State Dormitory Authority, 5.0%, 7/1/38 $ 57,650 20,000 AAA/Aaa Permanent University Fund, 5.0%, 7/1/30 24,743 50,000 AA/Aa1 University of California, 3.38%, 5/15/28 52,162 -------------- $ 551,692 -------------------------------------------------------------------------------------------------------- Municipal Medical -- 0.1% 25,000 AA-/A1 Massachusetts Development Finance Agency, 5.25%, 4/1/37 $ 28,335 -------------------------------------------------------------------------------------------------------- Municipal Transportation -- 0.2% 50,000 AA/Aa2 Harris County Metropolitan Transit Authority, 5.0%, 11/1/41 $ 56,813 -------------------------------------------------------------------------------------------------------- Municipal Utilities -- 0.1% 25,000 AA-/Aa3 South Carolina State Public Service Authority, 5.0%, 12/1/43 $ 28,270 -------------------------------------------------------------------------------------------------------- Municipal Water -- 0.4% 45,000 AAA/Aa1 City of Charleston South Carolina Waterworks & Sewer System Revenue, 5.0%, 1/1/41 $ 51,488 20,000 AAA/Aa2 Hampton Roads Sanitation District, 5.0%, 4/1/38 22,583 45,000 AAA/NR Tarrant Regional Water District, 5.0%, 3/1/52 50,199 -------------- $ 124,270 -------------------------------------------------------------------------------------------------------- Municipal Obligation -- 0.2% 50,000 AA+/Aa1 State of Washington, 5.0%, 8/1/39 $ 57,378 -------------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (Cost $928,020) $ 1,024,796 -------------------------------------------------------------------------------------------------------- SENIOR FLOATING RATE LOAN INTERESTS -- 0.7% FOOD, BEVERAGE & TOBACCO -- 0.5% Distillers & Vintners -- 0.5% 150,000 0.00 NR/NR Constellation Brands, Inc., Bridge Facility Loan, 6/28/20 $ 150,000 -------------- Total Food, Beverage & Tobacco $ 150,000 -------------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 39 Schedule of Investments | 4/30/13 (unaudited) (continued) -------------------------------------------------------------------------------------------------------- Principal Floating S&P/Moody's Amount ($) Rate (b) Ratings Value -------------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 0.2% Integrated Telecommunication Services -- 0.2% 49,553 0.00 B+/Ba3 West Corp., Term B-8 Loan, 6/30/18 $ 50,414 -------------- Total Telecommunication Services $ 50,414 -------------------------------------------------------------------------------------------------------- TOTAL SENIOR FLOATING RATE LOAN INTERESTS (Cost $200,448) $ 200,414 -------------------------------------------------------------------------------------------------------- TOTAL INVESTMENT IN SECURITIES -- 99.3% (Cost $27,615,297) (a) $ 29,366,368 -------------------------------------------------------------------------------------------------------- OTHER ASSETS & LIABILITIES -- 0.7% $ 200,729 -------------------------------------------------------------------------------------------------------- TOTAL NET ASSETS -- 100.0% $ 29,567,097 ======================================================================================================== * Non-income producing security. NR Not rated by either S&P or Moody's. WR Rating withdrawn by either S&P or Moody's. PIK Represents a pay in kind security. (Step) Bond issued with an initial coupon rate which converts to a higher rate at a later date. REIT Real Estate Investment Trust. (Perpetual) Security with no stated maturity date. (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 April 30, 2013, the value of these securities amounted to $6,189,549 or 20.9% of total net assets. (a) At April 30, 2013, the net unrealized gain on investments based on cost for federal income tax purposes of $27,615,904 was as follows: Aggregate gross unrealized gain for all investments in which there is an excess of value over tax cost $ 2,098,994 Aggregate gross unrealized loss for all investments in which there is an excess of tax cost over value (348,530) ------------ Net unrealized gain $ 1,750,464 ============ (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. The accompanying notes are an integral part of these financial statements. 40 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 Principal amounts are denominated in U.S. Dollars unless otherwise noted: AUD Australian Dollar BRL Brazilian Real CAD Canadian Dollar CHF Swiss Franc CZK Czech Krona DKK Danish Kroner EURO Euro GBP British Pound Sterling HUF Hungarian Forint IDR Indonesian Rupiah JPY Japanese Yen MXN Mexican Peso MYR Malaysian Ringgit NOK Norwegian Krone NZD New Zealand Dollar PHP Philippine Peso PLN New Polish Zloty SEK Swedish Krone TRY Turkish Lira ZAR South African Rand Purchases and sales of securities (excluding temporary cash investments) for the six months ended April 30, 2013 aggregated $6,991,257 and $5,537,946, 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) are categorized as Level 3. See Notes to Financial Statements -- Note 1A. The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 41 The following is a summary of the inputs used as of April 30, 2013, in valuing the Fund's assets: ------------------------------------------------------------------------------------------------ Level 1 Level 2 Level 3 Total ------------------------------------------------------------------------------------------------ Convertible Corporate Bonds $ - $ 541,192 $ - $ 541,192 Preferred Stocks 379,029 53,750 50,240 483,019 Convertible Preferred Stocks 171,568 - - 171,568 Asset Backed Securities - 1,156,081 - 1,156,081 Collateralized Mortgage Obligations - 4,429,272 - 4,429,272 Corporate Bonds - 9,822,449 - 9,822,449 U.S. Government Agency Obligations - 1,229,137 - 1,229,137 Foreign Government Bonds - 10,308,440 - 10,308,440 Municipal Bonds - 1,024,796 - 1,024,796 Senior Floating Rate Loan Interests - 200,414 - 200,414 ------------------------------------------------------------------------------------------------ Total $550,597 $28,765,531 $50,240 $29,366,368 ================================================================================================ Other Financial Instruments Unrealized appreciation on futures contracts $ 15,133 $ - $ - $ 15,133 Unrealized depreciation on forward foreign currency settlement hedge contracts - (13,254) - (13,254) Unrealized depreciation on forward foreign currency portfolio hedge contracts - (1,766) - (1,766) ------------------------------------------------------------------------------------------------ Total Other Financial Instruments $ 15,133 $ (15,020) $ - $ 113 ================================================================================================ The following is a reconciliation of assets valued using significant observable inputs (Level 3): ------------------------------------------------------------------------------------------------ Preferred Stocks ------------------------------------------------------------------------------------------------ Balance as of 10/31/12 $ - Realized gain (loss) - Change in unrealized appreciation (depreciation)1 240 Net purchases 50,000 Transfers in and out of Level 3 - ------------------------------------------------------------------------------------------------ Balance as of 4/30/13 $50,240 ================================================================================================ 1 Realized gain (loss) on these securities is included in the net realized gain (loss) from investments in the Statement of Operations. 2 Unrealized appreciation (depreciation) on these securities is included in the change in unrealized gain (loss) on investments in the Statement of Operations. * Transfers are calculated on the beginning of period values. Net change in unrealized appreciation (depreciation) of investments still held as of 4/30/13 $ 240 -------- During the six months ended April 30, 2013, there were no transfers between levels 1 and 2. The accompanying notes are an integral part of these financial statements. 42 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 Statement of Assets and Liabilities | 4/30/13 (unaudited) ASSETS: Investment in securities, at value (cost $27,615,297) $29,366,368 Futures collateral 9,100 Foreign currencies, at value (cost $114,602) 114,803 Receivables -- Investment securities sold 470,033 Fund shares sold 8,295 Interest 334,607 Due from Pioneer Investment Management, Inc. 50,431 Prepaid expenses 24,557 ----------------------------------------------------------------------------------------- Total assets $30,378,194 ========================================================================================= LIABILITIES: Payables -- Investment securities purchased $ 550,269 Fund shares repurchased 21,008 Dividends 54,499 Due to custodian 94,460 Variation margin 781 Unrealized depreciation on forward foreign currency portfolio hedge contracts 13,254 Unrealized depreciation on forward foreign currency settlement hedge contracts 1,766 Due to affiliates 17,700 Accrued expenses 57,360 ----------------------------------------------------------------------------------------- Total liabilities $ 811,097 ========================================================================================= NET ASSETS: Paid-in capital $27,743,528 Undistributed net investment income 14,723 Accumulated net realized gain on investments and foreign currency transactions 54,832 Net unrealized appreciation on investments 1,751,071 Net unrealized appreciation on futures contracts 15,133 Net unrealized depreciation on forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (12,190) ----------------------------------------------------------------------------------------- Total net assets $29,567,097 ========================================================================================= NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $8,122,700/707,811 shares) $ 11.48 Class C (based on $4,363,672/379,420 shares) $ 11.50 Class Y (based on $17,080,725/1,475,895 shares) $ 11.57 MAXIMUM OFFERING PRICE: Class A ($11.48 (divided by) 95.5%) $ 12.02 ========================================================================================= The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 43 Statement of Operations (unaudited) For the Six Months Ended 4/30/13 (unaudited) INVESTMENT INCOME: Interest (net of foreign taxes withheld of $7,840) $ 608,055 Dividends 17,448 ---------------------------------------------------------------------------------------- Total investment income $ 625,503 ---------------------------------------------------------------------------------------- EXPENSES: Management fees $ 70,809 Transfer agent fees and expenses Class A 6,500 Class C 2,511 Class Y 275 Distribution fees Class A 9,941 Class C 21,219 Shareholder communications expense 969 Administrative reimbursements 18,865 Custodian fees 19,284 Registration fees 18,716 Professional fees 23,813 Printing expense 10,218 Fees and expenses of nonaffiliated trustees 2,340 Miscellaneous 55,184 ---------------------------------------------------------------------------------------- Total expenses $ 260,644 Less fees waived and expenses reimbursed by Pioneer Investment Management, Inc. (120,614) ---------------------------------------------------------------------------------------- Net expenses $ 140,030 ---------------------------------------------------------------------------------------- Net investment income $ 485,473 ---------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS, FUTURES CONTRACTS AND FOREIGN CURRENCY TRANSACTIONS: Net realized gain on: Investments $ 69,658 Futures contracts (4,288) Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (12,747) $ 52,623 ---------------------------------------------------------------------------------------- Change in net unrealized appreciation (depreciation) on: Investments $ 119,923 Futures contracts 17,680 Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (11,291) $ 126,312 ---------------------------------------------------------------------------------------- Net gain on investments, futures contracts and foreign currency transactions $ 178,935 ---------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 664,408 ======================================================================================== The accompanying notes are an integral part of these financial statements. 44 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 Statements of Changes in Net Assets -------------------------------------------------------------------------------------------------- Six Months Ended 4/30/13 Year Ended (unaudited) 10/31/12 -------------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $ 485,473 $ 952,874 Net realized gain on investments, futures contracts and foreign currency transactions 52,623 215,985 Change in net unrealized appreciation (depreciation) on investments, futures contracts and foreign currency transactions 126,312 563,347 -------------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 664,408 $ 1,732,206 -------------------------------------------------------------------------------------------------- DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.18 and $0.36 per share, respectively) $ (126,608) $ (386,138) Class C ($0.13 and $0.26 per share, respectively) (48,448) (86,797) Class Y ($0.20 and $0.38 per share, respectively) (276,349) (463,695) Net realized gain: Class A ($0.10 and $0.02 per share, respectively) $ (66,829) $ (27,154) Class C ($0.10 and $0.02 per share, respectively) (34,802) (7,524) Class Y ($0.10 and $0.02 per share, respectively) (127,457) (23,478) -------------------------------------------------------------------------------------------------- Total distributions to shareowners $ (680,493) $ (994,786) -------------------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS: Net proceeds from sale of shares $ 3,749,391 $ 7,636,227 Reinvestment of distributions 196,243 347,577 Cost of shares repurchased (2,931,943) (9,696,973) -------------------------------------------------------------------------------------------------- Net increase (decrease) in net assets resulting from Fund share transactions $ 1,013,691 $ (1,713,169) -------------------------------------------------------------------------------------------------- Net increase (decrease) in net assets $ 997,606 $ (975,749) NET ASSETS: Beginning of period 28,569,491 29,545,240 -------------------------------------------------------------------------------------------------- End of period $29,567,097 $ 28,569,491 -------------------------------------------------------------------------------------------------- Undistributed (distributions in excess of) net investment income $ 14,723 $ (19,345) -------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 45 Statements of Changes in Net Assets (continued) ------------------------------------------------------------------------------------------------ '13 Shares '13 Amount (unaudited) (unaudited) '12 Shares '12 Amount ------------------------------------------------------------------------------------------------ Class A Shares sold 117,146 $ 1,334,718 250,541 $ 2,789,945 Reinvestment of distributions 12,965 147,671 26,618 297,724 Less shares repurchased (216,730) (2,478,450) (803,862) (9,004,913) ------------------------------------------------------------------------------------------------ Net decrease (86,619) $ (996,061) (526,703) $ (5,917,244) ================================================================================================ Class C Shares sold 44,841 $ 511,377 83,899 $ 940,484 Reinvestment of distributions 4,213 48,098 4,423 49,724 Less shares repurchased (29,570) (336,952) (44,926) (507,374) ------------------------------------------------------------------------------------------------ Net increase 19,484 $ 222,523 43,396 $ 482,834 ================================================================================================ CLASS Y Shares sold 165,628 $ 1,903,296 349,184 $ 3,905,798 Reinvestment of distributions 41 474 11 129 Less shares repurchased (10,148) (116,541) (16,526) (184,686) ------------------------------------------------------------------------------------------------ Net increase 155,521 $ 1,787,229 332,669 $ 3,721,241 ================================================================================================ The accompanying notes are an integral part of these financial statements. 46 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 Financial Highlights --------------------------------------------------------------------------------------------------------------------------------- Six Months 12/28/07 (a) Ended Year Year Year Year (Commencement 4/30/13 Ended Ended Ended Ended of Operations) (unaudited) 10/31/12 10/31/11 10/31/10 10/31/09 to 10/31/08 --------------------------------------------------------------------------------------------------------------------------------- Class A Net asset value, beginning of period $ 11.49 $11.22 $ 11.19 $10.84 $ 9.25 $ 10.00 --------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income $ 0.19 $ 0.36 $ 0.34 $ 0.35 $ 0.39 $ 0.25 Net realized and unrealized gain (loss) on investments 0.08 0.29 0.01 0.41 1.57 (0.75) --------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net assets from investment operations $ 0.27 $ 0.65 $ 0.35 $ 0.76 $ 1.96 $ (0.50) --------------------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income (0.18) (0.36) (0.32) (0.40) (0.37) (0.18) Net realized gain (0.10) (0.02) -- (0.01) -- (0.02) Tax return of capital -- -- -- -- -- (0.05) --------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.01) $ 0.27 $ 0.03 $ 0.35 $ 1.59 $ (0.75) --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 11.48 $11.49 $ 11.22 $11.19 $10.84 $ 9.25 ================================================================================================================================= Total return* 2.36% 5.98% 3.22% 7.21% 21.58% (5.18)%*** Ratio of net expenses to average net assets 1.00%** 1.00% 1.00% 1.00% 1.00% 1.00%** Ratio of net investment income to average net assets 3.42%** 3.26% 2.94% 3.26% 3.83% 3.23%** Portfolio turnover rate 40% 29% 34% 27% 28% 46%*** Net assets, end of period (in thousands) $ 8,123 $9,128 $14,830 $6,235 $5,434 $ 3,628 Ratios with no waiver of fees and assumption of expenses by the Adviser: Total expenses 1.97%** 1.65% 2.07% 2.35% 2.90% 3.16%** Net investment income 2.45%** 2.60% 1.86% 1.91% 1.93% 1.07%** ================================================================================================================================= (a) Class A shares were first publicly offered on December 28, 2007. * Assumes initial investment at net asset value at the beginning of the period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of the 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 Global Aggregate Bond Fund | Semiannual Report | 4/30/13 47 Financial Highlights (continued) --------------------------------------------------------------------------------------------------------------------------------- Six Months 12/28/07 (a) Ended Year Year Year Year (Commencement 4/30/13 Ended Ended Ended Ended of Operations) (unaudited) 10/31/12 10/31/11 10/31/10 10/31/09 to 10/31/08 --------------------------------------------------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 11.51 $11.23 $11.19 $10.82 $ 9.23 $ 10.00 --------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income $ 0.14 $ 0.26 $ 0.24 $ 0.25 $ 0.29 $ 0.18 Net realized and unrealized gain (loss) on investments 0.08 0.30 0.02 0.43 1.58 (0.76) --------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net assets from investment operations $ 0.22 $ 0.56 $ 0.26 $ 0.68 $ 1.87 $ (0.58) --------------------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income (0.13) (0.26) (0.22) (0.30) (0.28) (0.12) Net realized gain (0.10) (0.02) -- (0.01) -- (0.02) Tax return of capital -- -- -- -- -- (0.05) --------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.01) $ 0.28 $ 0.04 $ 0.37 $ 1.59 $ (0.77) --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 11.50 $11.51 $11.23 $11.19 $10.82 $ 9.23 ================================================================================================================================= Total return* 1.90% 5.09% 2.39% 6.45% 20.55% (5.95)%*** Ratio of net expenses to average net assets 1.89%** 1.90% 1.90% 1.90% 1.89% 1.90%** Ratio of net investment income to average net assets 2.53%** 2.33% 2.15% 2.37% 2.94% 2.29%** Portfolio turnover rate 40% 29% 34% 27% 28% 46%*** Net assets, end of period (in thousands) $ 4,364 $4,414 $3,555 $3,264 $3,281 $ 2,471 Ratios with no waiver of fees and assumption of expenses by the Adviser: Total expenses 2.69% 2.39% 2.94% 3.00% 3.57% 3.84%** Net investment income 1.73% 1.84% 1.11% 1.27% 1.26% 0.35%** ================================================================================================================================= (a) Class C shares were first publicly offered on December 28, 2007. * Assumes initial investment at net asset value at the beginning of the period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of the 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. 48 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 --------------------------------------------------------------------------------------------------------------------------------- Six Months 12/28/07 (a) Ended Year Year Year Year (Commencement 4/30/13 Ended Ended Ended Ended of Operations) (unaudited) 10/31/12 10/31/11 10/31/10 10/31/09 to 10/31/08 --------------------------------------------------------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 11.59 $ 11.30 $ 11.22 $10.85 $ 9.25 $ 10.00 --------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income $ 0.21 $ 0.39 $ 0.35 $ 0.34 $ 0.38 $ 0.27 Net realized and unrealized gain (loss) on investments 0.07 0.30 0.05 0.45 1.59 (0.77) --------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net assets from investment operations $ 0.28 $ 0.69 $ 0.40 $ 0.79 $ 1.97 $ (0.50) --------------------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income (0.20) (0.38) (0.32) (0.41) (0.37) (0.18) Net realized gain (0.10) (0.02) -- (0.01) -- (0.02) Tax return of capital -- -- -- -- -- (0.05) --------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (0.02) $ 0.29 $ 0.08 $ 0.37 $ 1.60 $ (0.75) --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 11.57 $ 11.59 $ 11.30 $11.22 $10.85 $ 9.25 ================================================================================================================================= Total return* 2.39% 6.24% 3.66% 7.48% 21.69% (5.12)%*** Ratio of net expenses to average net assets 0.75%** 0.79% 0.82% 0.94% 1.00% 0.89%** Ratio of net investment income to average net assets 3.67%** 3.42% 3.01% 3.31% 3.83% 3.22%** Portfolio turnover rate 40% 29% 34% 27% 28% 46%*** Net assets, end of period (in thousands) $17,081 $15,297 $11,160 $4,205 $1,809 $ 1,542 Ratios with no waiver of fees and assumption of expenses by the Adviser: Total expenses 1.56%** 1.18% 1.55% 1.86% 2.48% 2.82%** Net investment income 2.86%** 3.04% 2.28% 2.38% 2.35% 1.29%** ================================================================================================================================= (a) Class Y shares were first publicly offered on December 28, 2007. * Assumes initial investment at net asset value at the beginning of the period, reinvestment of all distributions and the complete redemption of the investment at net asset value at the end of the period. ** Annualized. *** Not annualized. The accompanying notes are an integral part of these financial statements. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 49 Notes to Financial Statements | 4/30/13 (unaudited) 1. Organization and Significant Accounting Policies Pioneer Global Aggregate Bond Fund (the Fund) is a series of Pioneer Series Trust VII, a Delaware statutory trust. The Fund is registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The investment objective of the Fund is to provide current income from an investment grade portfolio with due regard to preservation of capital and prudent investment risk. 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 were first publicly offered on December 28, 2007. 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: 50 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 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 with remaining maturity of more than sixty days 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. Short-term fixed income securities with remaining maturities of sixty days or less generally are valued at amortized cost. Securities or senior loans for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by or at the direction or with the approval of the Valuation Committee using fair value methods pursuant to procedures adopted by the Board of Trustees. The Valuation Committee is comprised of certain members of the Board of Trustees. The Trust 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 Trust'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 Trust's securities may differ significantly from exchange prices and such differences could be material. Pioneer Investment Management, Inc. (PIM) 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. At April 30, 2013, there were no securities that were valued using fair value methods (other than securities valued using prices supplied by independent pricing services). 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. 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. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 51 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, including interest on income bearing cash accounts, 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. B. 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 market price of those securities but are included with the net realized and unrealized gain or loss on investments. C. 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 gains or losses are recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a portfolio hedge 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). D. 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 April 30, 2013, the Fund did not have any interest and penalties related to 52 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 uncertain tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax years for the prior three fiscal years are 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 paid during the year ended October 31, 2012 was as follows: ---------------------------------------------------------------------------- 2012 ---------------------------------------------------------------------------- Distributions paid from: Ordinary income $949,306 Long-term capital gain 45,480 ---------------------------------------------------------------------------- Total $994,786 ============================================================================ The following shows the components of distributable earnings on a federal income tax basis at October 31, 2012: ---------------------------------------------------------------------------- 2012 ---------------------------------------------------------------------------- Distributable earnings: Undistributed ordinary income $ 136,491 Undistributed long-term gain 131,789 Current year dividend payable (58,473) Unrealized appreciation 1,629,847 ---------------------------------------------------------------------------- Total $1,839,654 ============================================================================ The difference between book-basis and tax-basis net unrealized appreciation is attributable to the mark to market on forward foreign currency and futures contracts and interest accruals on preferred stock. E. 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 $2,091 in underwriting commissions on the sale of Class A shares during the six months ended April 30, 2013. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 53 F. 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. G. 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 investments in foreign markets and countries with limited developing markets may subject the Fund to a greater degree of risk than investments in a developed market. These risks include disruptive political or economic conditions and the imposition of adverse governmental laws or currency exchange restrictions. 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. The Fund invests in below investment grade (high yield) debt securities and preferred stocks. Some of these high yield securities may be convertible into equity securities of the issuer. Debt securities rated below investment grade are commonly referred to as "junk bonds" and are considered speculative. These securities involve greater risk of loss, are subject to greater price volatility, and are less liquid, especially during periods of economic uncertainty or change, than higher rated debt securities. 54 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 H. Futures Contracts The Fund may enter into futures transactions 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 April 30, 2013 was $9,100. 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 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. Futures contracts are subject to market risk, interest rate risk and currency exchange rate risk. 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. With futures, there is minimal counterparty credit risk to the Fund since futures are exchange-traded and the exchange's clearinghouse, as counterparty to all exchange-traded futures, guarantees the futures against default. During the six months ended April 30, 2013, the Fund had 7 outstanding futures contracts. At April 30, 2013, open futures contracts were as follows ---------------------------------------------------------------------------- Number of Contracts Settlement Unrealized Type Long/(Short) Month Value Appreciation ---------------------------------------------------------------------------- US 10 Yr Note (CBT) 6 6/13 $800,156 $10,875 US Long Bond (CBT) 1 6/13 $148,375 $ 4,258 ---------------------------------------------------------------------------- Total 7 $948,531 $15,133 ============================================================================ I. 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. The Fund's investment adviser, Pioneer Investment Management, Inc. (PIM), is responsible for determining that the value of the collateral remains at least equal to the repurchase price. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 55 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 of 0.50% 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 1.00%, 1.90% and 0.75% 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 April 30, 2013 are reflected on the Statement of Operations. These expense limitations are in effect through March 1, 2014. 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 $14,459 in management fees, administrative costs and certain other reimbursements payable to PIM at April 30, 2013. Effective March 5, 2012, PIM has retained Brown Brothers Harriman & Co. to provide certain sub-administration and accounting services to the Fund. 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 April 30, 2013, such out-of-pocket expenses by class of shares were as follows: -------------------------------------------------------------------------------- Shareholder Communications: -------------------------------------------------------------------------------- Class A $468 Class C 474 Class Y 27 -------------------------------------------------------------------------------- Total: $969 -------------------------------------------------------------------------------- Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $2,541 in transfer agent fees and out-of-pocket reimbursements payable to PIMSS at April 30, 2013. 56 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 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 April 30, 2013. 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 one year of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchases 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 April 30, 2013, CDSCs in the amount of $66 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 April 30, 2013, the Fund's expenses were not reduced under such arrangements. 6. Forward Foreign Currency Contracts At April 30, 2013, 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. At April 30, 2013, the Fund's gross forward currency settlement contracts receivable and payable were $325,968 and $324,202, respectively, resulting in a net payable of $1,766. The average value of settlement contracts open during the six months ended April 30, 2013 was $86,970. The average value of portfolio contracts open during the six months ended April 30, 2013 was $1,839,642. Open portfolio hedges at April 30, 2013 were as follows: Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 57 ------------------------------------------------------------------------------------- Net Net Unrealized Contracts to In Exchange Settlement Appreciation Currency deliver For USD Date Value (Depreciation) ------------------------------------------------------------------------------------- AUD (Australian (416,513) $(431,057) 5/31/13 $(430,524) Dollar) $ 533 AUD (Australian (125,000) (131,643) 5/15/13 (129,373) Dollar) 2,270 EURO (European (400,000) (520,791) 5/24/13 (526,395) Euro) (5,604) EURO (European (114,001) (148,085) 5/22/13 (150,022) Euro) (1,936) EURO (European (113,986) (148,085) 5/22/13 (150,002) Euro) (1,917) EURO (European (90,000) (118,463) 6/17/13 (118,458) Euro) 5 INR (Indian 3,900,000 69,407 9/16/13 70,765 Rupee) 1,358 KES (Kenyan (1,269,308) (14,802) 5/14/13 (15,106) Shilling) (304) KES (Kenyan 1,269,308 14,230 5/14/13 15,106 Shilling) 876 MYR (Malaysian 440,000 140,607 5/9/13 144,542 Ringgit) 3,935 NGN (Nigerian 10,000,000 61,916 6/19/13 62,475 Naira) 558 NZD (New (95,000) (80,416) 5/23/13 (81,244) Zealand Dollar) (829) NOK (Norwegian 1,034,343 175,882 5/2/13 179,231 Krone) 3,349 RUB (Russian 4,400,000 139,916 7/8/13 139,847 Ruble) (68) KRW (South 460,000,000 403,668 5/15/13 417,375 Korea Won) 13,707 SEK (Swedish (1,162,000) (175,882) 5/2/13 (179,169) Krona) (3,287) SEK (Swedish (447,000) (70,476) 5/15/13 (68,903) Krona) 1,573 JPY (Japanese 41,000,000 431,057 5/31/13 420,573 Yen) (10,484) JPY (Japanese (69,000,000) (699,732) 5/22/13 (707,757) Yen) (8,025) JPY (Japanese 14,000,000 148,085 5/22/13 143,603 Yen) (4,483) JPY (Japanese 14,000,000 148,085 5/22/13 143,603 Yen) (4,483) ------------------------------------------------------------------------------------- Total $ (13,254) ------------------------------------------------------------------------------------- 58 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 7. Additional Disclosures about Derivative Instruments and Hedging Activities Values of derivative instruments as of April 30, 2013 were as follows: ----------------------------------------------------------------------------------------------------- Derivatives not accounted for as Asset Derivatives 2013 Liabilities Derivatives 2013 hedging instruments ---------------------------------------------------------------------- under Accounting Statement of Assets Statement of Assets Standards Codification and Liabilities and Liabilities (ASC) 815 Location Value Location Value ----------------------------------------------------------------------------------------------------- Forward Foreign Currency Portfolio Hedge Contracts Unrealized Unrealized appreciation on depreciation on forward foreign forward foreign currency portfolio currency portfolio hedge contracts $ -- hedge contracts $13,254 Forward Foreign Currency Settlement Hedge Contracts Unrealized Net unrealized appreciation on depreciation on forward foreign forward foreign currency currency settlement hedge settlement hedge contracts $ -- contracts $ 1,766 Interest Rate Futures* Net unrealized Net unrealized appreciation on depreciation on futures contracts $15,133 futures contracts $ -- ----------------------------------------------------------------------------------------------------- Total $15,133 $15,020 ===================================================================================================== * Reflects unrealized appreciation/depreciation on futures contracts (See Note 1I). The current day's variation margin is separately disclosed on the Statement of Assets and Liabilities. The effect of derivative instruments on the Statement of Operations for the six months ended April 30, 2013 was as follows: ----------------------------------------------------------------------------------------------------- Change in Derivatives not Realized Unrealized accounted for as Gain Appreciation hedging instruments (Loss) on (Depreciation) under Accounting Location of Gain or (Loss) Derivatives on Derivatives Standards Codification On Derivatives Recognized Recognized Recognized (ASC) 185 in Income in Income in Income ----------------------------------------------------------------------------------------------------- Interest Rate Futures Net realized gain (loss) on futures contracts $ (4,288) Interest Rate Futures Change in net unrealized appreciation (depreciation) on futures contracts $ 17,680 Forward Foreign Net realized gain (loss) on forward Currency Portfolio foreign currency contracts and Hedge Contracts other assets and liabilities denominated in foreign currencies $ 13,338 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 59 ----------------------------------------------------------------------------------------------------- Change in Derivatives not Realized Unrealized accounted for as Gain Appreciation hedging instruments (Loss) on (Depreciation) under Accounting Location of Gain or (Loss) Derivatives on Derivatives Standards Codification On Derivatives Recognized Recognized Recognized (ASC) 185 in Income in Income in Income ----------------------------------------------------------------------------------------------------- Forward Foreign Change in unrealized appreciation Currency Portfolio (depreciation) on forward foreign Hedge Contracts currency contracts and other assets and liabilities denominated in foreign currencies $(14,800) Forward Foreign Change in unrealized appreciation Currency Settlement (depreciation) loss on forward foreign Hedge Contracts currency contracts and other assets and liabilities denominated in foreign currencies $ (1,766) 8. 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 15, 2012 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% 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 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 April 30, 2013, the Fund had no borrowings under the credit facility. 60 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 Approval of Investment Advisory Agreement Pioneer Investment Management, Inc. (PIM) serves as the investment adviser to Pioneer Global Aggregate 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 March 2012 as the Trustees of the Fund agreed on, among other things, an overall approach and timeline for the process. In July 2012, the Trustees approved the format of the contract review materials and submitted their formal request to PIM to furnish information necessary to evaluate the terms of the investment advisory agreement. The contract review materials were provided to the Trustees in July 2012 and September 2012. After reviewing and discussing the materials, the Trustees submitted a request for additional information to PIM, and materials were provided in response to this request. Meetings of the Independent Trustees of the Fund were held in July, September, October, and November, 2012 to review and discuss the contract review materials. In addition, the Trustees took into account the information related to the Fund provided to the Trustees at each regularly scheduled meeting. At a meeting held on November 13, 2012, 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. 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, its research process and its process for trade execution. The Trustees considered the resources of PIM and the personnel of PIM who provide investment management services to 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 also considered the substantial attention and high priority given by PIM's senior management to the Pioneer fund complex. In addition, the Trustees considered PIM's plans to increase resources in its investment management function and other enhancements to PIM's advisory capabilities. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 61 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 The Trustees considered the performance results of the Fund over various time periods. They reviewed information comparing the Fund's performance with the performance of its peer group of funds as classified by Morningstar, Inc. (Morningstar), an independent provider of investment company data, and with the performance of the Fund's benchmark index. The Trustees considered that the Fund's annualized total return was in the second quintile of its Morningstar category for the one year period ended June 30, 2012 and in the third quintile of its Morningstar category for the three year period ended June 30, 2012. (In all quintile rankings referred to throughout this disclosure, first quintile is most favorable to the Fund's shareowners. Thus, highest relative performance would be first quintile and lowest relative expenses would also be first quintile.) The Trustees considered that the Fund's twelve month average gross portfolio yield (using month end 30 day effective yields) exceeded the twelve month average yield of the Fund's benchmark index. The Trustees concluded that the investment performance of the Fund was satisfactory. 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 Trust 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, 2012 was in the first 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 Class Y shares of the Fund for the twelve months ended June 30, 2012 was in the fourth quintile relative both to the Fund's Morningstar category and its Strategic Insight peer group for the comparable period. The Trustees noted that the expense ratio of 62 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 Class A shares of the Fund for the period ended June 30, 2012 was in the second quintile relative both to its Morningstar category and its Strategic Insight peer group for the comparable period. The Trustees considered the small asset size of the Fund compared to the median asset size of its Strategic Insight peer group. The Trustees considered that non-management fee operating expenses and transfer agency expenses generally are spread over a smaller asset base than the other funds in the peer group, which results in these fees being significantly higher as a percentage of assets. The Trustees also noted that the expense ratio of Class Y shares was only 3.5 basis points higher than the median expense ratio of its Strategic Insight peer group. 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 reviewed management fees charged by PIM and PIM's affiliate, Pioneer Institutional Asset Management, Inc. (together with PIM, "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. 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 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 63 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, rarely identifiable on a Fund-by-Fund basis, 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 Funds. 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 particularly, for example during the recent difficult periods for financial markets, as the level of services was maintained notwithstanding a significant decline in PIM's fee revenues from the Funds. Accordingly, the Trustees concluded that economies of scale, if any, were being appropriately shared with the Fund. 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. The Trustees considered the intangible benefits to PIM by virtue of its relationship with the Fund and the other Pioneer funds. The Trustees concluded that the receipt of these benefits was reasonable in the context of the overall relationship between PIM and the Fund. 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. 64 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 Trustees, Officers and Service Providers Trustees Officers Thomas J. Perna, Chairman John F. Cogan, Jr., President* David R. Bock Daniel K. Kingsbury, Executive John F. Cogan, Jr. Vice President Benjamin M. Friedman Mark E. Bradley, Treasurer** Margaret B.W. Graham Christopher J. Kelley, Secretary Daniel K. Kingsbury Marguerite A. Piret Stephen K. West Investment Adviser and Administrator Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Bingham McCutchen 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. * Chief Executive Officer of the Fund. ** Chief Financial and Accounting Officer of the Fund. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 65 This page for your notes. 66 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 This page for your notes. Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 67 This page for your notes. 68 Pioneer Global Aggregate Bond Fund | Semiannual Report | 4/30/13 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) 2013 Pioneer Investments 21910-05-0613 Pioneer Emerging Markets Local Currency Debt Fund -------------------------------------------------------------------------------- Semiannual Report | April 30, 2013 -------------------------------------------------------------------------------- Ticker Symbols: Class A LCEMX* Class C LCECX* Class Y LCYEX* * Class A, C, and Y shares were first publicly offered on February 5, 2013. [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents Letter to Shareowners 2 Portfolio Management Discussion 4 Portfolio Summary 9 Prices and Distributions 10 Performance Update 11 Comparing Ongoing Fund Expenses 14 Schedule of Investments 16 Financial Statements 21 Notes to Financial Statements 28 Approval of Investment Advisory Agreement 34 Trustees, Officers and Service Providers 36 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 1 President's Letter Dear Shareowner, Pioneer continues to see only modest economic growth in the U.S. Employment continues to rise, albeit slowly, and we believe it will continue to do so in 2013, barring a negative shock to the system. The housing and auto sectors continue to recover, benefiting from record-low interest rates. Banks' willingness to lend to consumers and businesses also continues to rise, broad measures of inflation remain subdued, and, if the weather cooperates in 2013, food prices should come back down. And, while corporate profit growth has slowed, profits remain high and many U.S. companies continue to both pay and increase dividends*. Offsetting some of these positives are the continued contraction of fiscal policy in Washington and a recessionary Europe. The Federal Reserve's aggressive monetary policy has driven Treasury yields to generational lows and supported investments in all financial assets, including equities and high-yield corporate bonds. For example, the Standard & Poor's 500 Index (the S&P 500), a broad measure of the U.S. stock market, returned 15.99% for the full calendar year ended December 31, 2012, and the Bank of America Merrill Lynch High Yield Master II Index (the High Yield Index), which measures the performance of high-yield corporate bonds, returned 15.59% for the same 12-month period. On the other hand, the Barclays Aggregate Bond Index (the Aggregate Index), which tracks the performance of a higher-quality bond universe, gained 4.22% for the 12 months ended December 31, 2012; the safer-still Barclays Government Credit Index (the Government/Credit Index) returned 4.82%; and 3-month Treasury bills, generally regarded as essentially "risk free" by the markets, returned just 0.09% in 2012. "Risky" assets outperformed again in the first quarter of 2013, as the S&P 500 returned 10.60% and the High Yield Index returned 2.89%. In contrast, the Aggregate Index returned -0.12% in the first quarter, the Government Credit Index returned -0.16%, and Treasury bills returned 0.02%. Despite generally improving economic conditions and a rising stock market, global economies and investors still face daunting challenges as 2013 moves forward, although we remain cautiously optimistic. U.S. fiscal policy remains unsettled, and we feel the U.S. government could be at risk of credit rating downgrades from one or more of the major ratings agencies if the uncertainties persist. The Federal Reserve continues to provide extraordinary support to the U.S. economy and the bond market, but will not do so indefinitely. Europe has made progress, but has not yet resolved its sovereign-debt/banking problem, nor has the region been able to exit recession. Japan recently has unveiled aggressive and unconventional monetary and fiscal policies, but the country * Dividends are not guaranteed. 2 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 continues to face issues such as high levels of debt as well as an aging population. China and other emerging economies, while generally in better shape than most "developed" markets, also face a range of challenges. While most of the risks outlined here are widely recognized and may already be "priced in" to the market, we believe investors should continue to expect market volatility. At Pioneer, we have long advocated the benefits of staying diversified and investing for the long term. And while diversification does not assure a profit or protect against loss in a declining market, we believe there are still opportunities for prudent investors to earn attractive returns. Our advice, as always, is to work closely with a trusted financial advisor to discuss your goals and work together to develop an investment strategy that meets your individual needs, keeping in mind that there is no single best strategy that works for every investor. Pioneer's investment teams have, since 1928, sought out attractive opportunities in global equity and bond markets, using in-depth research to identify undervalued individual securities, and using thoughtful risk management to construct portfolios which balance potential risks and reward in an ever-changing world. We encourage you to learn more about Pioneer and our time-tested approach to investing by consulting with your financial advisor or visiting us online at us.pioneerinvestments.com. We greatly appreciate your trust in us, and we thank you for investing with Pioneer. Sincerely, /s/ Daniel K. Kingsbury Daniel K. Kingsbury 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 Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 3 Portfolio Management Discussion | 4/30/13 In the following discussion, Greg Saichin and Hakan Aksoy review recent market events and describe the factors that affected the Fund's performance during the abbreviated semiannual reporting period between February 4, 2013, and April 30, 2013. Mr. Saichin, Head of High-Yield and Global Emerging Markets, Fixed Income, and a portfolio manager at Pioneer, and Mr. Aksoy, a portfolio manager at Pioneer, are responsible for the day-to-day management of the Fund. Q Pioneer Emerging Market Local Currency Debt Fund commenced operations in early February of 2013. Could you discuss the Fund's investment strategy? A In managing the Fund, we use a multifaceted approach to gain portfolio exposure to the local currency emerging debt markets via bonds issued by government, quasi-government, and corporate entities. We combine a top-down strategy that analyzes countries and sectors with a bottom-up approach highlighted by rigorous individual security analysis. We have the flexibility to invest the Fund across the full range of the local currency emerging bond markets, which gives us the ability to adjust the portfolio's allocations as market conditions and economic cycles change. We focus on investments in local currency debt for four reasons: o Yields of local currency debt instruments tend to be higher than those of U.S. dollar-denominated debt, which increases the total return potential of the asset class over time. o We believe emerging market currencies have the latitude for longer-term appreciation against developed market currencies, due to superior growth rates in the emerging markets. o While local currency debt has tended to be more volatile than U.S. dollar-denominated bonds in the past, local currency markets have been exhibiting greater stability today, thanks to higher trading volumes and increased participation by domestic investors. o We believe that a mutual fund denominated entirely in foreign currencies provides an important source of diversification* for investors who have the majority of their assets in U.S. dollars. * Diversification does not assure a profit nor protect against loss in a declining market. 4 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 Q How did the Fund perform during the period between February 4, 2013, and April 30, 2013? A From its inception on February 4, 2013, through the end of the reporting period on April 30, 2013, the Fund's Class A shares returned 0.90% at net asset value, while the Fund's benchmark, the JP Morgan Government Bond Index-Emerging Markets Global Diversified Index (the JP Morgan Index), returned 2.90%. In addition, during the three-month period between February 1, 2013, and April 30, 2013, the average return of the 88 mutual funds in Lipper's Emerging Markets Local Currency Debt Fund category was 2.04%. Q Since the Fund's inception, where have you been finding the best investment opportunities? A As of April 30, 2013, the Fund had 42% of its assets in corporate bonds, which represented a significant overweight relative to the JP Morgan Index. Government debt and cash represented the remainder of the Fund's investments as of period end. The portfolio's large weighting in emerging market corporates reflects our belief that the asset class offers a compelling combination of risk and return potential. Emerging market corporates are one of the highest-yielding areas within the global fixed-income market, yet in many cases the risks do not appear exceptionally high. Emerging companies have been strengthening their profit margins and improving the quality of their balance sheets; that, in turn, should lead to fewer defaults. Further, many emerging market corporate balance sheets are cash-rich, as several companies have tapped into the capital markets simply to establish a history of borrowing. Many corporations also have been benefiting from favorable locations, for as the sovereign debt (government debt) of certain countries receives upgrades from the major rating agencies due to favorable economic and budgetary conditions, the corporate bonds of companies located in those countries also experience in-kind price appreciation. Finally, emerging market corporate debt issuance has increased dramatically over the last decade, creating improved liquidity conditions for investors. With regard to specific regions, we have been finding the best opportunities in Latin America and have tilted the portfolio away from emerging Europe and Africa. We are not finding compelling values among the major European issuers right now, as we believe the euro zone's sovereign-debt Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 5 crisis could continue to pressure the broader regional economy. However, the Fund does hold an overweight in Russia, based in part on our view that an improvement in China's economy in the second half of the year would benefit commodity-exporting countries around the world. We have a more positive outlook on Latin America, which helps to underpin the Fund's above-benchmark weightings in Brazil and Mexico as well as slight overweights in Peru and Chile. Another notable aspect of the Fund's positioning is that we have been maintaining a duration - or interest-rate sensitivity of the portfolio - below that of the JP Morgan Index. Our analysis of the economic cycles in emerging countries reveals that many have reached the point where further interest-rate cuts are unlikely, while some are even likely to enact rate increases before the end of the year. We have therefore reduced the Fund's interest-rate risk to protect against that possibility. This is especially true in Asia, where the Fund holds underweights in Indonesia, Malaysia, Thailand, and the Philippines. Q What factors contributed to the Fund's underperformance of the JP Morgan Index during the abbreviated reporting period between February 4, 2013, and April 30, 2013? A The primary factor in the Fund's short-term underperformance of the benchmark during the period was our decision to maintain less interest- rate sensitivity in the portfolio as compared with the overall market. Yields on longer-term U.S. Treasuries fell sharply during March 2013, on concerns that economic growth was not improving as much as previously thought. In turn, this contributed to falling interest rates on longer-term bonds around the world, including those in the emerging markets. Nevertheless, it's important to keep in mind that we manage the Fund with the goal of outperforming the benchmark over a full market cycle and not in short-term intervals. And, ultimately, we believe our decision to maintain a portfolio duration below that of the benchmark eventually will pay off, given that the cycle of interest-rate cuts by central banks in the emerging markets appears to be drawing close to its conclusion. Q What is your outlook for emerging market debt? A The asset class is always vulnerable to short-term volatility related to shifts in investors' levels of risk-aversion. From a longer-term standpoint, however, emerging market bonds - and local currency debt in particular - continue to offer investors the potential for diversification as well as higher yields than those currently available in the developed markets. As long as central banks in the developed countries continue to pursue policies designed to depress interest rates, the emerging debt markets can continue to benefit from the tailwind of elevated investor demand. 6 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 While the stimulus provided by central banks will end at some point in the future, we believe emerging market bonds will continue to be supported by the same fundamental trends that have driven the performance of the asset class in the past decade: improving government finances, stronger economic growth compared with the developed markets, and financial markets that are becoming increasingly deep and liquid. We believe our active, flexible approach in managing the portfolio, which is highlighted by our ability to invest anywhere in the emerging markets or to move between government and corporate bonds, can enable the Fund to navigate through changing market conditions in the years ahead. Please refer to the Schedule of Investments on pages 16-20 for a full listing of Fund securities. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 7 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 inverse floating-rate obligations (a type of derivative instrument), which may have price volatility and involve leverage risk. The portfolio may invest a substantial amount of its assets in issuers located within a specific region, and is, therefore, more susceptible to adverse developments affecting those regions. 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. 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. The portfolio may invest in derivative securities, which may include futures and options. These types of instruments can increase price fluctuation. These risks may increase share price volatility. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. 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. These statements should not be relied upon for any other purposes. 8 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 Portfolio Summary | 4/30/13 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 57.5% U.S. Corporate Bonds 41.8% Temporary Cash Investments 0.7% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total debt holdings)* 1. Thailand Government Bond, 2.8%, 10/10/17 3.17% -------------------------------------------------------------------------------- 2. America Movil SAB de CV, 6.45%, 12/5/22 3.08 -------------------------------------------------------------------------------- 3. Export-Import Bank of Korea, 7.55%, 8/27/15 2.86 -------------------------------------------------------------------------------- 4. Eskom Holdings SOC, Ltd., 10.0%, 1/25/23 2.84 -------------------------------------------------------------------------------- 5. Russian Railways via RZD Capital Plc, 8.3%, 4/2/19 2.79 -------------------------------------------------------------------------------- 6. Federal Grid Co. OJS via Federal Grid Finance, Ltd., 8.446%, 3/13/19 2.71 -------------------------------------------------------------------------------- 7. Gazprombank OJSC Via GPB Eurobond Finance Plc, 8.617%, 12/15/15 2.71 -------------------------------------------------------------------------------- 8. Emgesa SA ESP, 8.75%, 1/25/21 2.56 -------------------------------------------------------------------------------- 9. Itau Unibanco Holding SA, 10.5%, 11/23/15 2.52 -------------------------------------------------------------------------------- 10. Banco Safra SA, 10.25%, 8/8/16 2.52 -------------------------------------------------------------------------------- * 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. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 9 Prices and Distributions | 4/30/13 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 4/30/13 2/5/13 -------------------------------------------------------------------------------- A $10.09 $9.98 -------------------------------------------------------------------------------- C $10.08 $9.97 -------------------------------------------------------------------------------- Y $10.10 $9.98 -------------------------------------------------------------------------------- Distributions per Share: 2/5/13-4/30/13 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $ -- $ -- $ -- -------------------------------------------------------------------------------- C $ -- $ -- $ -- -------------------------------------------------------------------------------- Y $ -- $ -- $ -- -------------------------------------------------------------------------------- JP Morgan Government Bond Index--Emerging Markets Global Diversified Index is an unmanaged, comprehensive, global, local emerging markets index, and consists of regularly traded, liquid-fixed-rate, domestic currency government bonds to which international investors can gain exposure. 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 11-13. 10 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 Performance Update | 4/30/13 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Emerging Markets Local Currency Debt Fund at public offering price, compared to that of the JP Morgan Government Bond Index-Emerging Markets Global Diversified Index. Average Annual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- Net Asset Public Offering Period Value (NAV) Price (POP) -------------------------------------------------------------------------------- Life-of-Class (2/4/2013) 0.90% -3.63% -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 12, 2012) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.61% 1.20% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Emerging Markets Local JPM GBI EM Global Currency Debt Fund Diversified Index 2/28/2013 $ 9,550 $ 10,000 4/30/2013 $ 9,777 $ 10,290 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 contractual expense limitations currently in effect through March 1, 2014, for Class A shares. There can be no assurance that Pioneer will extend the expense limitations 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. 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 Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 11 Performance Update | 4/30/13 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Emerging Markets Local Currency Debt Fund, compared to that of the JP Morgan Government Bond Index-Emerging Markets Global Diversified Index. Average Annual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- Life-of-Class (2/4/2013) 0.80% -0.20% -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 12, 2012) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.36% 2.10% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Emerging Markets Local JPM GBI EM Global Currency Debt Fund Diversified Index 2/28/2013 $ 10,000 $ 10,000 4/30/2013 $ 10,133 $ 10,290 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 contractual expense limitations currently in effect through March 1, 2014, for Class C shares. There can be no assurance that Pioneer will extend the expense limitations 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. 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 Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 Performance Update | 4/30/13 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Pioneer Emerging Markets Local Currency Debt Fund, compared to that of the JP Morgan Government Bond Index-Emerging Markets Global Diversified Index. Average Annual Total Returns (As of April 30, 2013) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- Life-of-Class (2/4/2013) 1.00% 1.00% -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated December 12, 2012) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.35% 0.85% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer Emerging Markets Local JPM GBI EM Global Currency Debt Fund Diversified Index 2/28/2013 $ 5,000,000 $ 5,000,000 4/30/2013 $ 5,121,704 $ 5,144,969 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 contractual expense limitations currently in effect through March 1, 2014, for Class Y shares. There can be no assurance that Pioneer will extend the expense limitations 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. 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 Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 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. 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 Emerging Markets Local Currency Debt Fund Based on actual returns from February 5, 2013, through April 30, 2013. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account Value on 2/5/13 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,009.00 $1,008.00 $1,010.00 on 4/30/13 -------------------------------------------------------------------------------- Expenses Paid During Period* $ 2.57 $ 4.33 $ 1.99 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.10%, 1.85% and 0.85% for Class A, Class C and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 85/365 (to reflect the partial year period). 14 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 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 Emerging Markets Local Currency Debt Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from February 5, 2013, through April 30, 2013. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account Value on 2/5/13 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,009.08 $1,007.34 $1,009.66 on 4/30/13 -------------------------------------------------------------------------------- Expenses Paid During Period* $ 2.57 $ 4.32 $ 1.99 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.10%, 1.85% and 0.85% for Class A, Class C and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 85/365 (to reflect the partial year period). Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 15 Schedule of Investments | 4/30/13 (unaudited) ------------------------------------------------------------------------------------------------ Principal S&P/Moody's Amount ($) Ratings Value ------------------------------------------------------------------------------------------------ CORPORATE BONDS - 40.3% TRANSPORTATION -- 2.7% Railroads -- 2.7% RUB 12,000,000 BBB/Baa1 Russian Railways via RZD Capital Plc, 8.3%, 4/2/19 $ 404,760 --------------- Total Transportation $ 404,760 ------------------------------------------------------------------------------------------------ FOOD, BEVERAGE & TOBACCO -- 1.7% Agricultural Products -- 1.7% BRL 500,000 NR/Ba2 Cosan Luxembourg SA, 9.5%, 3/14/18 $ 259,838 --------------- Total Food, Beverage & Tobacco $ 259,838 ------------------------------------------------------------------------------------------------ BANKS -- 17.3% Diversified Banks -- 17.3% TRY 520,000 NR/Baa2 Akbank TAS, 7.5%, 2/5/18 $ 294,517 BRL 700,000 NR/Baa3 Banco ABC Brasil SA, 8.5%, 3/28/16 345,969 BRL 300,000 BBB/Baa1 Banco Santander Brasil SA Cayman Islands, 8.0%, 3/18/16 152,185 CLP 50,000,000 A/Aa3 Banco Santander Chile, 6.5%, 9/22/20 104,973 RUB 13,000,000 NR/Aa3 Export-Import Bank of Korea, 7.55%, 8/27/15 416,017 RUB 12,000,000 NR/Baa3 Gazprombank OJSC Via GPB Eurobond Finance Plc, 8.617%, 12/15/15 393,606 BRL 680,000 NR/Baa1 Itau Unibanco Holding SA, 10.5%, 11/23/15 365,696 TRY 520,000 NR/NR Turkiye Is Bankasi, 0.0%, 10/9/13 (b) 282,887 TRY 500,000 NR/NR Turkiye Is Bankasi, 0.0%, 8/12/13 (b) 274,232 --------------- $ 2,630,082 --------------- Total Banks $ 2,630,082 ------------------------------------------------------------------------------------------------ DIVERSIFIED FINANCIALS -- 8.5% Other Diversified Financial Services -- 8.5% BRL 700,000 NR/Baa2 Banco Safra SA, 10.25%, 8/8/16 $ 365,522 ZAR 6,600,000 A-/NR Development Bank of Southern Africa, Ltd., 0.0%, 12/31/27 (b) 220,548 PLN 870,000 AAA/Aaa European Investment Bank, 4.25%, 10/25/22 306,019 RUB 12,000,000 BBB/Baa3 Federal Grid Co. OJS via Federal Grid Finance, Ltd., 8.446%, 3/13/19 394,436 --------------- $ 1,286,525 --------------- Total Diversified Financials $ 1,286,525 ------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 16 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 ------------------------------------------------------------------------------------------------ Principal S&P/Moody's Amount ($) Ratings Value ------------------------------------------------------------------------------------------------ TELECOMMUNICATION SERVICES -- 4.0% Integrated Telecommunication Services -- 1.0% BRL 300,000 BBB-/Baa3 Oi SA, 9.75%, 9/15/16 $ 156,277 ------------------------------------------------------------------------------------------------ Wireless Telecommunication Services -- 3.0% MXN 5,000,000 A-/A2 America Movil SAB de CV, 6.45%, 12/5/22 $ 447,892 --------------- Total Telecommunication Services $ 604,169 ------------------------------------------------------------------------------------------------ UTILITIES -- 6.1% Electric Utilities -- 3.7% ZAR 3,000,000 NR/NR Eskom Holdings SOC, Ltd., 10.0%, 1/25/23 $ 412,967 ZAR 2,000,000 BBB/Baa3 Eskom Holdings SOC, Ltd., 12/31/18 144,032 --------------- $ 556,999 ------------------------------------------------------------------------------------------------ Independent Power Producers & Energy Traders -- 2.4% COP 560,000,000 BBB-/NR Emgesa SA ESP, 8.75%, 1/25/21 $ 371,495 --------------- Total Utilities $ 928,494 ------------------------------------------------------------------------------------------------ TOTAL CORPORATE BONDS (Cost $6,137,313) $ 6,113,868 ------------------------------------------------------------------------------------------------ FOREIGN GOVERNMENT BONDS -- 55.5% COP 250,000,000 BBB/Baa3 Colombia Government International Bond, 12.0%, 10/22/15 $ 163,723 HUF 62,000,000 BB/Ba1 Hungary Government Bond, 6.75%, 2/24/17 290,016 HUF 61,000,000 BB/NR Hungary Government Bond, 7.75%, 8/24/15 287,777 IDR 2,400,000,000 BB+/Baa3 Indonesia Treasury Bond, 10.0%, 7/15/17 294,743 IDR 2,200,000,000 NR/Baa3 Indonesia Treasury Bond, 10.0%, 9/15/24 303,471 IDR 2,000,000,000 NR/Baa3 Indonesia Treasury Bond, 11.0%, 9/15/25 293,583 IDR 1,900,000,000 BB+/Baa3 Indonesia Treasury Bond, 12.8%, 6/15/21 289,351 MYR 920,000 A/A3 Malaysia Government Bond, 3.58%, 9/28/18 307,259 MYR 920,000 NR/A3 Malaysia Government Bond, 3.741%, 2/27/15 306,683 MYR 900,000 NR/A3 Malaysia Government Bond, 4.012%, 9/15/17 305,701 The accompanying notes are an integral part of these financial statements. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 17 Schedule of Investments | 4/30/13 (unaudited) (continued) ------------------------------------------------------------------------------------------------ Principal S&P/Moody's Amount ($) Ratings Value ------------------------------------------------------------------------------------------------ Foreign Government Bonds -- (continued) MYR 670,000 NR/A3 Malaysia Government Bond, 4.16%, 7/15/21 $ 232,517 MYR 670,000 NR/A3 Malaysia Government Bond, 4.378%, 11/29/19 233,816 MXN 1,300,000 A-/Baa1 Mexican Bonos, 10.0%, 11/20/36 175,011 MXN 2,000,000 A-/Baa1 Mexican Bonos, 10.0%, 12/5/24 245,554 MXN 3,700,000 A-/Baa1 Mexican Bonos, 6.0%, 6/18/15 317,412 MXN 3,200,000 A-/Baa1 Mexican Bonos, 8.5%, 12/13/18 320,242 MXN 1,750,000 A-/Baa1 Mexican Bonos, 9.5%, 12/18/14 156,719 PEN 330,000 BBB+/Baa2 Peru Government Bond, 7.84%, 8/12/20 156,222 PEN 300,000 BBB+/Baa2 Peru Government Bond, 8.2%, 8/12/26 157,798 PLN 892,010 A/A2 Poland Government Bond, 3.0%, 8/24/16 300,421 PLN 900,000 A/A2 Poland Government Bond, 4.75%, 10/25/16 302,913 PLN 860,000 A/A2 Poland Government Bond, 4.75%, 4/25/17 292,605 PLN 850,000 A/A2 Poland Government Bond, 5.25%, 10/25/17 297,266 ZAR 2,640,814 NR/Baa1 South Africa Government Bond -- CPI Linked, 2.75%, 1/31/22 351,359 ZAR 2,600,000 NR/Baa1 South Africa Government Bond, 6.75%, 3/31/21 302,423 THB 13,600,000 A-/Baa1 Thailand Government Bond, 2.8%, 10/10/17 460,820 THB 8,900,000 NR/Baa1 Thailand Government Bond, 3.45%, 3/8/19 309,219 THB 8,200,000 A-/Baa1 Thailand Government Bond, 5.125%, 3/13/18 306,356 TRY 382,449 NR/NR Turkey Government Bond, 4.5%, 2/11/15 230,621 TRY 464,835 NR/NR Turkey Government Bond, 7.0%, 10/1/14 283,152 TRY 250,000 NR/Ba1 Turkey Government Bond, 9.0%, 3/5/14 143,853 ------------------------------------------------------------------------------------------------ TOTAL FOREIGN GOVERNMENT BONDS (Cost $8,310,848) $ 8,418,606 ------------------------------------------------------------------------------------------------ The accompanying notes are an integral part of these financial statements. 18 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 ------------------------------------------------------------------------------------------------ Principal S&P/Moody's Amount ($) Ratings Value ------------------------------------------------------------------------------------------------ TEMPORARY CASH INVESTMENTS -- 0.7% Commercial Paper -- 0.7% MXN 1,300,000 BB/NR Consubanco SA Institucion de Banca Multiple, 0.0%, 4/16/14 (b) $ 100,026 ------------------------------------------------------------------------------------------------ TOTAL TEMPORARY CASH INVESTMENTS (Cost $99,564) $ 100,026 ------------------------------------------------------------------------------------------------ TOTAL INVESTMENT IN SECURITIES -- 96.5% (Cost $14,547,726) (a) $ 14,632,500 ------------------------------------------------------------------------------------------------ OTHER ASSETS & LIABILITIES -- 3.5% $ 525,138 ------------------------------------------------------------------------------------------------ TOTAL NET ASSETS -- 100.0% $ 15,157,638 ================================================================================================ NR Not rated by either S&P or Moody's. (a) At April 30, 2013, the net unrealized gain on investments based on cost for federal income tax purposes of $14,547,726 was as follows: Aggregate gross unrealized gain for all investments in which there is an excess of value over tax cost $ 232,552 Aggregate gross unrealized loss for all investments in which there is an excess of tax cost over value (147,778) --------------- Net unrealized gain $ 84,774 =============== (b) Security issued with a zero coupon. Income is earned through accretion of discount. Principal amounts are denominated in U.S. Dollars unless otherwise noted: BRL Brazilian Real CLP Chilean Peso COP Columbian Peso HUF Hungarian Forint IDR Indonesian Rupiah MXN Mexican Peso MYR Malaysian Ringgit PEN Peruvian Nuevo Sol PLN New Polish Zloty RUB Russian Ruble THB Thai Baht TRY Turkish Lira ZAR South African Rand Purchases and sales of securities (excluding temporary cash investments) for the six months ended April 30, 2013 aggregated $15,313,597 and $1,079,151, respectively. The accompanying notes are an integral part of these financial statements. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 19 Schedule of Investments | 4/30/13 (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) as Level 3. See Notes to Financial Statements -- Note 1A. The following is a summary of the inputs used as of April 30, 2013, in valuing the Fund's investments: -------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------- Corporate Bonds $ -- $ 6,113,868 $ -- $ 6,113,868 Foreign Government Bonds -- 8,418,606 -- 8,418,606 Commercial Paper -- 100,026 -- 100,026 -------------------------------------------------------------------------------- Total $ -- $14,632,500 $ -- $14,632,500 ================================================================================ During the six months ended April 30, 2013, there were no transfers between Levels 1, 2 and 3. The accompanying notes are an integral part of these financial statements. 20 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 Statement of Assets and Liabilities | 4/30/13 (unaudited) ASSETS: Investment in securities (cost $14,547,726) $14,632,500 Cash 225,098 Foreign currencies, at value (cost $8,108) 8,255 Receivables -- Interest 229,308 Due from Pioneer Investment Management, Inc. 17,571 Due from affiliates 33 Other 55,800 ------------------------------------------------------------------------------- Total assets $15,168,565 =============================================================================== LIABILITIES: Due to affiliates $ 10,927 ------------------------------------------------------------------------------- Total liabilities $ 10,927 =============================================================================== NET ASSETS: Paid-in capital $15,024,300 Undistributed net investment income 118,740 Accumulated net realized loss on investments and foreign currency transactions (70,495) Net unrealized gain on investments 84,774 Net unrealized gain on other assets and liabilities denominated in foreign currencies 319 ------------------------------------------------------------------------------- Total net assets $15,157,638 =============================================================================== NET ASSET VALUE PER SHARE: (a) (No par value, unlimited number of shares authorized) Class A (based on $5,070,864/502,435 shares) $ 10.09 Class C (based on $5,037,501/500,000 shares) $ 10.08 Class Y (based on $5,049,273/500,000 shares) $ 10.10 MAXIMUM OFFERING PRICE: Class A ($10.09 (divided by) 95.5%) $ 10.57 =============================================================================== (a) The Fund commenced operations on February 5, 2013. The accompanying notes are an integral part of these financial statements. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 21 Statement of Operations (unaudited) For the Period Ended 4/30/13 INVESTMENT INCOME: Interest $ 162,599 ------------------------------------------------------------------------------------------- Total investment income $ 162,599 ------------------------------------------------------------------------------------------- EXPENSES: Management fees $ 24,247 Distribution fees Class A 2,888 Class C 11,536 Administrative reimbursement 901 Custodian fees 2,795 Registration fees 14,167 Professional fees 17,660 Printing expense 4,723 Fees and expenses of nonaffiliated Trustees 1,747 Miscellaneous 5,821 ------------------------------------------------------------------------------------------- Total expenses $ 86,485 Less fees waived and expenses reimbursed by Pioneer Investment Management, Inc. (42,626) ------------------------------------------------------------------------------------------- Net expenses $ 43,859 ------------------------------------------------------------------------------------------- Net investment income $ 118,740 ------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS AND FOREIGN CURRENCY TRANSACTIONS: Net realized loss on: Investments $ (47,861) Other assets and liabilities denominated in foreign currencies (22,634) $ (70,495) ------------------------------------------------------------------------------------------- Change in net unrealized gain on: Investments $ 84,774 Other assets and liabilities denominated in foreign currencies 319 $ 85,093 ------------------------------------------------------------------------------------------- Net gain on investments and foreign currency transactions $ 14,598 ------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 133,338 =========================================================================================== The accompanying notes are an integral part of these financial statements. 22 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 Statements of Changes in Net Assets -------------------------------------------------------------------------------------------- 2/5/13 (a) to 4/30/13 (unaudited) -------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $ 118,740 Net realized loss on investments and foreign currency transactions (70,495) Change in net unrealized gain on investments and foreign currency transactions 85,093 -------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 133,338 -------------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS: Net proceeds from sale of shares $15,024,300 Reinvestment of distributions -- Cost of shares repurchased -- -------------------------------------------------------------------------------------------- Net increase in net assets resulting from Fund share transactions $15,024,300 -------------------------------------------------------------------------------------------- Net increase in net assets $15,157,638 NET ASSETS: Beginning of year -- -------------------------------------------------------------------------------------------- End of year $15,157,638 -------------------------------------------------------------------------------------------- Undistributed net investment income $ 118,740 ============================================================================================ (a) The Fund commenced operations on February 5, 2013. The accompanying notes are an integral part of these financial statements. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 23 Statements of Changes in Net Assets (continued) ------------------------------------------------------------------------------- '13 Shares '13 Amount (unaudited) (unaudited) ------------------------------------------------------------------------------- Class A* Shares sold 502,435 $5,024,300 Reinvestment of distributions -- -- Less shares repurchased -- -- ------------------------------------------------------------------------------- Net increase 502,435 $5,024,300 =============================================================================== Class C* Shares sold 500,000 $5,000,000 Reinvestment of distributions -- -- Less shares repurchased -- -- ------------------------------------------------------------------------------- Net increase 500,000 $5,000,000 =============================================================================== Class Y* Shares sold 500,000 $5,000,000 Reinvestment of distributions -- -- Less shares repurchased -- -- ------------------------------------------------------------------------------- Net increase 500,000 $5,000,000 =============================================================================== * The Fund commenced operations on February 5, 2013. The accompanying notes are an integral part of these financial statements. 24 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 Financial Highlights -------------------------------------------------------------------------------- 2/5/13 (a) to 4/30/13 (unaudited) -------------------------------------------------------------------------------- Class A Net asset value, beginning of period $ 9.98 -------------------------------------------------------------------------------- Increase from investment operations: Net investment income $ 0.08 Net realized and unrealized gain on investments 0.03 -------------------------------------------------------------------------------- Net increase in net assets from investment operations $ 0.11 -------------------------------------------------------------------------------- Net asset value, end of period $10.09 ================================================================================ Total return* 0.90% Ratio of net expenses to average net assets+ 1.10%** Ratio of net investment income to average net assets+ 3.59%** Portfolio turnover rate 34%** Net assets, end of period (in thousands) $5,071 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses 2.33%** Net investment income 2.36%** Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 1.10%** Net investment income 3.59%** ================================================================================ * Assumes initial investment at net asset value at the beginning of the period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of the period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. + Ratios with no reduction for fees paid indirectly. (a) Class A shares were first publicly offered on February 5, 2013. The accompanying notes are an integral part of these financial statements. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 25 Financial Highlights (continued) -------------------------------------------------------------------------------- 2/5/13 (a) to 4/30/13 (unaudited) -------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 9.97 -------------------------------------------------------------------------------- Increase from investment operations: Net investment income $ 0.07 Net realized and unrealized gain on investments 0.04 -------------------------------------------------------------------------------- Net increase in net assets from investment operations $ 0.11 -------------------------------------------------------------------------------- Net asset value, end of period $10.08 ================================================================================ Total return* 0.80% Ratio of net expenses to average net assets+ 1.85%** Ratio of net investment income to average net assets+ 2.84%** Portfolio turnover rate 34%** Net assets, end of period (in thousands) $5,038 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses 3.08%** Net investment income 1.61%** Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 1.85%** Net investment income 2.84%** ================================================================================ * Assumes initial investment at net asset value at the beginning of the period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of the period and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized. + Ratios with no reduction for fees paid indirectly. (a) Class C shares were first publicly offered on February 5, 2013. The accompanying notes are an integral part of these financial statements. 26 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 -------------------------------------------------------------------------------- 2/5/13 (a) to 4/30/13 (unaudited) -------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 9.98 -------------------------------------------------------------------------------- Increase from investment operations: Net investment income $ 0.09 Net realized and unrealized gain on investments 0.03 -------------------------------------------------------------------------------- Net increase in net assets from investment operations $ 0.12 -------------------------------------------------------------------------------- Net asset value, end of period $10.10 ================================================================================ Total return* 1.00% Ratio of net expenses to average net assets+ 0.85%** Ratio of net investment income to average net assets+ 3.84%** Portfolio turnover rate 34%** Net assets, end of period (in thousands) $5,049 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses 2.08%** Net investment income 2.61%** Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 0.85%** Net investment income 3.84%** ================================================================================ * Assumes initial investment at net asset value at the beginning of the period, reinvestment of all distributions and the complete redemption of the investment at net asset value at the end of the period. ** Annualized. + Ratios with no reduction for fees paid indirectly. (a) Class Y shares were first publicly offered on February 5, 2013. The accompanying notes are an integral part of these financial statements. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 27 Notes to Financial Statements | 4/30/13 (unaudited) 1. Organization and Significant Accounting Policies Pioneer Emerging Markets Local Currency Debt Fund (the Fund) is a series of Pioneer Series Trust VII, 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 investment objective of the Fund is total return through a combination of income and capital appreciation. 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 were first publicly offered on February 5, 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 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: 28 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 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 with remaining maturity of more than sixty days 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. Short-term fixed income securities with remaining maturities of sixty days or less generally are valued at amortized cost. 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 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 or at the direction or with the approval of the Valuation Committee using fair value methods pursuant to procedures adopted by the Board of Trustees. The Valuation Committee is comprised of certain members of the Board of Trustees. 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. Pioneer Investment Management, Inc. (PIM) 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. At April 30, 2013, there were no securities that were valued using fair value methods (other than securities that were valued using prices supplied by independent pricing services). 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. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 29 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, including interest on income bearing cash accounts, 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. B. 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 market price of those securities but are included with the net realized and unrealized gain or loss on investments. C. 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 gains or losses are recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a portfolio hedge 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. 30 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 D. 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 April 30, 2013, the Fund did not have any interest and penalties related to unrecognized tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax years for the prior three fiscal years are 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 Fund's taxable year. E. 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 no underwriting commissions on the sale of Class A shares during the period ended April 30, 2013. F. 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). Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 31 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. G. 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 investments in foreign markets and countries with limited developing markets may subject the Fund to a greater degree of risk than investments in a developed market. These risks include disruptive political or economic conditions and the imposition of adverse governmental laws or currency exchange restrictions. 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. 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 of 0.70% of the Fund's average daily net assets up to $1 billion and 0.65% on assets over $1 billion. For the period ended April 30, 2013, the effective management fee was equivalent to 0.70% 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 1.20%, 2.10% and 0.85% of the average daily net assets attributable to Class A, Class C and Class Y shares, respectively. Fees waived and expenses reimbursed during the period ended April 30, 2013 are reflected on the Statement of Operations. These expense limitations are in effect through March 1, 2014. 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 $10,239 in management fees, administrative costs and certain other reimbursements payable to PIM at April 30, 2013. 32 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 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 April 30, 2013, there were no out-of-pocket expenses. Included in "Due from affiliates" reflected on the Statement of Assets and Liabilities is $33 in transfer agent fees and out-of-pocket reimbursements payable from PIMSS at April 30, 2013. 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 $688 in distribution fees payable to PFD at April 30, 2013. 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 one year of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchases 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 period ended April 30, 2013, no CDSCs 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 period ended April 30, 2013, the Fund's expenses were not reduced under such arrangements. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 33 Approval of Investment Advisory Agreement Pioneer Investment Management, Inc. (PIM) serves as the investment adviser to Pioneer Emerging Markets Local Currency Debt Fund (the Fund) pursuant to an investment advisory agreement between PIM and the Fund. Based on their evaluation of the information provided by PIM, the Trustees, including the Independent Trustees voting separately, unanimously approved an investment advisory agreement for the Fund. In considering the investment advisory agreement, the Trustees considered various factors that they determined were relevant, including the factors described below. The Trustees did not identify any single factor as the controlling factor in determining to approve the agreement. Nature, Extent and Quality of Services The Trustees considered the nature, extent and quality of the services that would be provided by PIM to the Fund under the investment advisory agreement. The Trustees reviewed PIM's investment approach for the Fund and its research process, and considered the resources of PIM and the personnel of PIM who would provide investment management services to the Fund. The Trustees also considered that, as administrator, PIM would be responsible for the administration of the Fund's business and other affairs. The Trustees considered the quality of such services provided by PIM to the other Pioneer Funds. The Trustees considered the fees to be 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 PIM would provide to the Fund were satisfactory and consistent with the terms of the investment advisory agreement. Performance of the Fund In considering the investment advisory agreement, the Trustees noted that Fund was newly-offered and did not have a performance history. The Trustees considered the performance results provided at regular Board meetings for other Pioneer Funds and the performance results of two Pioneer UCITS with similar investment strategies to those of the Fund, and concluded that the investment performance of such other Pioneer Funds and Pioneer UCITS supported the approval of the investment advisory agreement. Management Fee and Expenses The Trustees considered information compiled by Strategic Insight Simfund, an independent third party, to compare the Fund's proposed management fee and anticipated expense ratio with a peer group of funds included in the 34 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 Morningstar Emerging Markets Bond category. The Trustees considered that the Fund's proposed management fee would rank in the second quintile of the peer group. (In all quintile rankings referred to throughout this disclosure, the first quintile is most favorable to Fund shareowners.) The Trustees also considered that, taking into account the contractual expense limitation agreed to by PIM with respect to the Fund, the Fund's anticipated expense ratio would rank in the third quintile of the peer group. The Trustees concluded that the proposed management fee payable by the Fund to PIM was reasonable in relation to the nature and quality of services to be provided by PIM. Profitability The Trustees did not consider PIM's profitability with respect to the management of the Fund in approving the investment advisory agreement because the Fund was newly-offered and profitability information was not available. 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 concluded that economies of scale, if any, would be appropriately shared with the Fund. Other Benefits The Trustees considered the other potential benefits to PIM from its relationship with the Fund, including the character and amount of fees that would be paid by the Fund, other than under the investment advisory agreement, for services that would be provided by PIM and its affiliates, and the revenues and profitability of PIM's businesses other than the fund business. The Trustees concluded that the receipt of these benefits was reasonable in the context of the overall relationship between PIM and the Fund. 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 investment advisory agreement for the Fund. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 35 Trustees, Officers and Service Providers Trustees Officers Thomas J. Perna, Chairman John F. Cogan, Jr., President* David R. Bock Daniel K. Kingsbury, Executive John F. Cogan, Jr. Vice President Benjamin M. Friedman Mark E. Bradley, Treasurer** Margaret B.W. Graham Christopher J. Kelley, Secretary Daniel K. Kingsbury Marguerite A. Piret Stephen K. West Investment Adviser and Administrator Pioneer Investment Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Bingham McCutchen 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. * Chief Executive Officer of the Fund. ** Chief Financial and Accounting Officer of the Fund. 36 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 This page for your notes. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 37 This page for your notes. 38 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 This page for your notes. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 39 This page for your notes. 40 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 This page for your notes. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 41 This page for your notes. 42 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 This page for your notes. Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 43 This page for your notes. 44 Pioneer Emerging Markets Local Currency Debt Fund | Semiannual Report | 4/30/13 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) 2013 Pioneer Investments 26827-00-0613 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 10(a), 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 accountant's 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 registrant's accountant for services rendered to the registrant, and rendered to the registrant's 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 registrant's audit committee of the board of trustees has considered whether the provision of non-audit services that were rendered to the registrant's 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 registrants 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 I Investments in securities of unaffiliated issuers as of the close of the reporting period as set forth in 210.12- 12 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 registrants portfolio (Portfolio Manager). Also state each Portfolio Managers 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 registrants equity securities that is registered by the registrant pursuant to Section 12 of the Exchange Act (15 U.S.C. 781). Instruction to paragraph (a). Disclose all purchases covered by this Item, including purchases that do not satisfy the conditions of the safe harbor of Rule 10b-18 under the Exchange Act (17 CFR 240.10b-18), made in the period covered by the report. Provide disclosures covering repurchases made on a monthly basis. For example, if the reporting period began on January 16 and ended on July 15, the chart would show repurchases for the months from January 16 through February 15, February 16 through March 15, March 16 through April 15, April 16 through May 15, May 16 through June 15, and June 16 through July 15. 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 registrants board of directors, where those changes were implemented after the registrant last provided disclosure in response to the requirements of Item 7(d)(2)(ii)(G) 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 registrants board of directors since the registrant last provided disclosure in response to the requirements of Item 7(d)(2)(ii)(G) 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 officer or officers and principal financial officer or officers, or persons performing similar functions, about the effectiveness of the registrant's disclosure controls and procedures (as defined in Rule 30a-2(c) under the Act (17 CFR 270.30a-2(c))) based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph. The registrant's principal executive officer and principal financial officer have concluded that the registrant's disclosure controls and procedures are effective based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of this report. (b) Disclose whether or not there were significant changes in the registrant's internal controls or in other factors that could significantly affect these controls subsequent to the date of their evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. 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. File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated. (a) 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. (b) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2 under the Act (17 CFR 270.30a-2). 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 VII By (Signature and Title)* /s/ John F. Cogan, Jr. John F. Cogan, Jr, President Date June 28, 2013 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/ John F. Cogan, Jr. John F. Cogan, Jr., President Date June 28, 2013 By (Signature and Title)* /s/ Mark Bradley Mark Bradley, Treasurer & Chief Accounting & Financial Officer Date June 28, 2013 * Print the name and title of each signing officer under his or her signature.