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, Amundi Pioneer Asset 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, 2016 through October 31, 2017 Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles. A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. ss. 3507. ITEM 1. REPORTS TO STOCKHOLDERS. Pioneer Global Multisector Income Fund -------------------------------------------------------------------------------- Annual Report | October 31, 2017 -------------------------------------------------------------------------------- Ticker Symbols: Class A PGABX Class C PGCBX Class Y PGYBX [LOGO] Amundi Pioneer ============== ASSET MANAGEMENT visit us: www.amundipioneer.com Table of Contents President's Letter 2 Portfolio Management Discussion 4 Portfolio Summary 10 Prices and Distributions 11 Performance Update 12 Comparing Ongoing Fund Expenses 15 Schedule of Investments 17 Financial Statements 43 Notes to Financial Statements 50 Report of Independent Registered Public Accounting Firm 67 Additional Information 68 Trustees, Officers and Service Providers 71 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 1 President's Letter Robust, synchronized global economic growth and rising corporate profits have continued to drive strong performance in both the credit and equity markets for most of 2017. U.S. stocks, as measured by the Standard & Poor's 500 Index, returned 14.23% through the end of the third quarter. Fixed-income markets, while not generating the same dazzling returns as equities, held their own, led by high-yield securities, which produced a return of 7.05% in the U.S., as measured by the Bank of America Merrill Lynch U.S. High Yield Index. Meanwhile, the Bloomberg Barclays U.S. Aggregate Bond Index returned 3.14% over the first three quarters of the calendar year. Continued strong employment numbers and higher consumer confidence, together with solid global economic growth and a depreciating U.S. dollar contributed to better-than-expected U.S. gross domestic product (GDP) growth of more than 3% in both the second and third quarters. Outside the U.S., economic growth in the second quarter also surprised to the upside across the Euro zone, China, and Japan. Meanwhile, despite higher oil and commodities prices, inflation continued to be moderate, both in the U.S. and globally, enabling major non-U.S. central banks to maintain their easy monetary policies. As expected, however, the U.S. Federal Reserve System (the Fed) recently announced that it would commence tapering its balance sheet this October. The Fed also appears primed to raise interest rates one more time before the end of this year, which would be the fourth rate increase since December of 2016. As we move into the final months of 2017, we believe the U.S. economy will experience modest growth in the short term, depending on the mix of economic policies enacted as the country moves away from monetary stimulus (driven by the Fed) and toward fiscal stimulus (potentially including tax reform) as well as lighter regulatory burdens. Meanwhile, corporate earnings remain solid and we think they will improve even further, despite the possibility of some pressure from wage increases. In addition, it is our view that the economy will continue to grow and that we may begin to see a modest upturn in inflation. In that scenario, we anticipate that the Fed will continue to raise interest rates. While economic and market conditions appear solid, there are always risks to consider that could dampen the outlook. Geopolitical concerns, such as increased tensions with North Korea, and continued political gridlock in Washington are just some of the risks that could lead to increased market volatility. 2 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 It is for those reasons that we at Amundi Pioneer continue to believe that investors can benefit from the experience and tenure of our investment teams who make active and informed decisions across our funds. As always, and particularly during times of market uncertainty, we encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short- and long-term goals, and to implement such a plan in a disciplined manner. We greatly appreciate the trust you have placed in us and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones Head of the Americas, President and CEO of U.S. Amundi Pioneer Asset Management USA, Inc. October 31, 2017 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. Past performance is no guarantee of future results. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 3 Portfolio Management Discussion | 10/31/17 Domestic and global economic growth trends remained solid, while inflationary pressures stayed largely under control during the 12 months ended October 31, 2017, providing a firm investment foundation for credit-linked debt in world fixed-income markets. At the same time, the bull market for the U.S. dollar (USD) ended its four-year run due to growing expectations of a convergence of monetary policy among the world's major central banks, with some, including the European Central Bank (ECB), the Bank of Japan, and the Bank of England beginning to tighten monetary policy and/or taper their quantitative easing efforts. In the following interview, Charles Melchreit, Andrew Feltus, and Paresh Upadhyaya discuss the factors that affected the performance of Pioneer Global Multisector Income Fund during the 12-month period. Mr. Melchreit, Deputy Head of Fixed Income, Director of Multisector Fixed Income, a senior vice president, and a portfolio manager at Amundi Pioneer Asset Management, Inc. ("Amundi Pioneer"), Mr. Feltus, Co-Director of High Yield, a senior vice president, and a portfolio manager at Amundi Pioneer, and Mr. Upadhyaya, Director of Currency Strategy, a senior vice president, and a portfolio manager at Amundi Pioneer, are responsible for the day-to -day management of the Fund, along with Kenneth J. Taubes, Executive Vice President, Director of U.S. Investment Management, Head of Fixed Income, and a portfolio manager at Amundi Pioneer. Q How did the Fund perform during the 12-month period ended October 31, 2017? A Pioneer Global Multisector Income Fund's Class A shares returned 3.75% at net asset value during the 12-month period ended October 31, 2017, while the Fund's benchmark, the Bloomberg Barclays Global Aggregate Bond Index (the Bloomberg Barclays Index), returned 1.18%. During the same period, the average return of the 206 mutual funds in Lipper's Global Income Funds category was 2.80%, and the average return of the 312 mutual funds in Morningstar's World Bond Funds category was 3.12%. Q How would you describe the investment environment for fixed-income securities during the 12 months ended October 31, 2017? A The period was marked by generally uninterrupted optimism about economic growth, highly accommodative financial conditions, and the prospects for continued corporate earnings gains, both globally and in the United States. High-yield corporates, emerging markets debt, and other sectors with higher credit risk continued to outperform groups more sensitive to interest-rate changes, such as U.S. Treasuries and other higher-quality debt instruments. The sustained rally in credit-sensitive debt 4 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 actually began after the high-yield market bottomed in February 2016, seven months before the start of the period. In the subsequent, extended rally, U.S. and international high-yield corporate bonds, emerging markets debt, and other asset classes that tend to be more affected by the state of the global economy performed well. Although the market surge did experience brief pauses and even temporary reversals, most often related to political uncertainties in the United States or in Europe, the positive environment generally continued unabated as investors maintained an optimistic outlook for both the domestic and global economies. In the United States, after a slow start in the first calendar quarter of 2017, the economy generally expanded at an impressive, above-trend growth rate of 3% or higher in the second and third quarters, and the nation's unemployment rate fell from 4.8% to 4.1% between October 2016 and October 2017. The election of Republican Donald Trump as U.S. president in November 2016 only briefly interrupted a rally in the credit market as investors ultimately came to interpret the results as a victory for pro-growth economic policies. In Europe, despite some evidence of increasing political nationalism and anti-European Union sentiment in advance of national elections in several countries, the eventual election results seemed to calm worries about anti-global trends. The European economy, meanwhile, continued to improve over the full 12-month period, while the euro, too, strengthened on currency markets. While European corporate high-yield bonds performed similarly to U.S. high-yield corporates during the period, emerging markets securities performed even better, helped significantly by rallies in commodity markets spurred by increased worldwide demand. U.S. monetary policy continued to tighten during the period, but the Federal Reserve (the Fed) acted cautiously, raising short-term interest rates three times over the 12 months, while carefully assessing economic trends. The rate increases were widely expected, and their gradual implementation showed no evidence of dampening the improvements in global economic growth. Late in the period, the Fed began reducing the rather large balance sheet it had accumulated through its multiple quantitative easing bond-buying programs from 2008 through 2014, but also at a gradual pace. In fact, U.S. financial conditions are easier now than at the start of the Fed's tightening cycle - a highly unusual event. In addition, other major G-4 central banks began the gradual process of moving away from their very accommodative monetary policies. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 5 Q What were the principal factors that either contributed to or detracted from the Fund's benchmark-relative returns during the 12-month period ended October 31, 2017? A Sector allocations made a substantial contribution to the Fund's performance relative to the Bloomberg Barclays Index during the period, while security selection also aided relative returns, especially in the emerging markets and in financials and industrial corporate bonds, where we tended to emphasize lower-rated, higher-yielding debt. With regard to sector allocations, the portfolio's underweighting of Treasuries and the sovereign debt of other major industrial nations lent significant support to the Fund's benchmark-relative performance. Another group that fared particularly well for the Fund was an allocation to the subordinated debt of several European banking institutions, which outperformed during the period as the European economy continued to gain momentum. A sector allocation that did not help the Fund's benchmark-relative returns, however, was the portfolio's small, out-of-benchmark exposure to so-called "catastrophe" bonds, which are insurance-linked securities. The allocation to catastrophe bonds held back the Fund's performance as late in the fiscal year three severe hurricanes hit the U.S. mainland or its territories, while two major earthquakes shook western Mexico. In addition, California suffered through its worst period of forest fires on record. Those events resulted in a 12-year high in natural-disaster-related property damage claims in the global insurance industry, thus eroding the values of catastrophe bonds in general. The Fund maintained a short-duration position relative to the Bloomberg Barclays Index during the 12 months, and the short-duration position helped benchmark-relative performance when interest rates began to rise, partly due to the moves by major central banks to tighten their monetary policies. (Duration is a measure of the sensitivity of the price, or the value of principal, of a fixed-income investment to a change in interest rates, expressed as a number of years. Shorter-duration portfolios tend to be less sensitive to changes in interest rates than longer-duration portfolios.) As of October 31, 2017, the average effective duration of the Fund's portfolio was 5.66 years. The one significant detractor from the Fund's benchmark-relative returns during the period was the portfolio's overweight USD currency positioning, as the USD lagged the euro and the Japanese yen. That negative was offset in part by the portfolio's long exposures to some euro-linked currencies, including the currencies of Sweden, Norway, and the Czech Republic, all of which held up well against the USD, although they 6 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 did underperform the euro. The Fund's Mexican peso position also detracted from relative performance. At first, the election of Donald Trump as U.S. President resulted in a weakening of the peso, as he had campaigned against undocumented immigration from Mexico as well as the North American Free Trade Agreement (NAFTA). But the peso subsequently rebounded after the Mexican central bank raised interest rates to combat inflation and rolled out an aggressive currency intervention program to prop up the country's softening currency. In addition, President Trump signaled that no anti-trade steps were likely to occur in the short run. As the peso strengthened, the Fund's underweight to the peso hurt relative results. At the end of the fiscal year, the Fund's portfolio had just over 51% exposure to the USD, and just over 48% in foreign-exchange exposure. This represents a sharp reduction in the Fund's USD position compared with one year ago. Q Did the Fund invest in any derivative securities during the 12-month period ended October 31, 2017? If so, did the derivatives have a material impact on benchmark-relative performance? A The Fund invested in three types of derivatives during the 12 months: forward foreign currency transactions (forwards), Treasury futures, and credit default swaps. We invested in the forwards to help manage the risks to the portfolio of changes in relative currency values. The forwards had a slight negative effect on relative performance. We invested in the Treasury futures to help manage interest-rate risk. The Treasury futures helped performance significantly, as the Fund's short-duration stance contributed to relative returns at a time when Treasury yields rose and prices were pressured. The Fund had only a very small exposure to credit default swaps, and they did not have a material impact on results. Q Were there any changes in the Fund's distributions to shareholders during the 12-month period ended October 31, 2017? A The Fund's distributions to shareholders rose during the second half of the fiscal year, due to increases in the yields of Treasury and government- related securities. Q What is your investment outlook, and how is the Fund positioned as of period end? A We think economic fundamentals, such as stronger global growth and continued easy financial conditions, should support the high-yield market. In an environment where corporations have the financial health to pay their bond obligations, we believe default rates should remain low. Nevertheless, Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 7 we are somewhat concerned about the elevated pricing levels to which sovereign and high-yield bonds have risen, and so we are maintaining a cautious outlook. The Fund now has a small overweight currency position in the USD, as we anticipate that we may see some near-term dollar strengthening, especially if the Fed tightens monetary policy more than the market currently anticipates. However, beyond the near term, we think the USD may weaken, and so we have been reducing, gradually, the Fund's long-USD exposure in anticipation that the ECB and other foreign central banks may begin raising interest rates, potentially weakening the relative attractiveness of the USD. We continue to position the Fund for rising interest rates in the U.S., and solid, if modest, economic growth. As time goes on, we will carefully evaluate the relative values offered by different asset classes and sectors. For example, after the recent outperformance of mortgage-backed securities, we have begun to favor owning investment-grade corporates in the portfolio, but on a highly selective basis. As noted earlier, the Fund continues to be overweight to the USD relative to the benchmark Bloomberg Barclays Index, although we recently have increased the Fund's euro and Japanese yen exposures. Overall, we may look to continue to reduce the portfolio's modest USD overweight. Geographically, North America remains the Fund's leading country/regional allocation, while the portfolio is significantly underweight to the low-yielding euro-based market, and is also underweight in developed Asian nations. Based on recent strong performance, we have modestly reduced the Fund's exposure to the emerging markets. By sector, the portfolio remains significantly underweight to U.S. Treasuries and developed government bonds, and is overweight to corporates and securitized issues. Please refer to the Schedule of Investments on pages 17-42 for a full listing of Fund securities. All investments are subject to risk, including the possible loss of principal. In the past several years, financial markets have experienced increased volatility, depressed valuations, decreased liquidity and heightened uncertainty. These conditions may continue, recur, worsen or spread. Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates, and economic and political conditions. 8 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 When interest rates rise, the prices of fixed income securities in the Fund will generally fall. Conversely, when interest rates fall, the prices of fixed income securities in the Fund will generally rise. Investments in the Fund are subject to possible loss due to the financial failure of issuers of underlying securities and their inability to meet their debt obligations. Investments in high-yield or lower rated securities are subject to greater-than-average price volatility, illiquidity and possibility of default. Prepayment risk is the chance that an issuer may exercise its right to prepay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income and lose the opportunity for additional price appreciation. The Fund may invest in mortgage-backed securities, which during times of fluctu- ating interest rates may increase or decrease more than other fixed-income securities. Mortgage-backed securities are also subject to pre-payments. The securities issued by U.S. Government-sponsored entities (e.g., FNMA, Freddie Mac) are neither guaranteed nor issued by the U.S. Government. Floating rate loans and similar instruments may be illiquid or less liquid than other instruments, and the value of any collateral can decline or be insufficient to meet the issuer's obligations. The value of municipal securities can be adversely affected by changes in financial condition of municipal issuers, lower revenues, and regulatory and political developments. The Fund is subject to currency risk, meaning that the Fund could experience losses based on changes in the exchange rate between non-U.S. currencies and the U.S. dollar. The Fund may use derivatives, such as options, futures, inverse floating rate obligations, swaps, and others, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on Fund performance. Derivatives may have a leveraging effect on the Fund. These risks may increase share price volatility. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Amundi Pioneer Asset Management, Inc., for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is no guarantee of future results. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 9 Portfolio Summary | 10/31/17 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 37.2% U.S. Government and Agency Obligations 17.8% International Corporate Bonds 17.7% U.S. Corporate Bonds 15.2% Collateralized Mortgage Obligations 4.8% Senior Secured Floating Rate Loan Interests 3.2% Closed End Fund 1.5% Asset Backed Securities 1.0% Municipal Bonds 1.0% Convertible Preferred Stocks 0.5% Convertible Corporate Bond 0.1% U.S. Preferred Stock 0.0%+ * Includes investments in Insurance Linked Securities totaling 0.2% of total investment portfolio. + Amount rounds to less than 0.1%. Geographical Distribution -------------------------------------------------------------------------------- (As a percentage of long-term holdings based on country of domicile) [THE FOLLOWING DATA WAS REPRESENTED AS A BAR CHART IN THE PRINTED MATERIAL] United States 43.5% United Kingdom 6.4% Canada 5.7% Netherlands 4.0% Argentina 3.9% Australia 3.7% New Zealand 3.6% Japan 3.2% Germany 3.1% Egypt 2.2% France 2.0% Norway 1.5% Mexico 1.4% Nigeria 1.4% Cote D'Ivoire 1.2% Luxembourg 1.1% Italy 1.1% Other (individually less than 1%) 11.0% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)** 1. New Zealand Government Bond, 5.5%, 4/15/23 3.56% -------------------------------------------------------------------------------- 2. Australia Government Bond, 4.75%, 4/21/27 3.30 -------------------------------------------------------------------------------- 3. Bundesrepublik Deutschland, 0.25%, 2/15/27 3.08 -------------------------------------------------------------------------------- 4. International Finance Corp., 6.3%, 11/25/24 2.70 -------------------------------------------------------------------------------- 5. Canadian Government Bond, 2.25%, 6/1/25 2.54 -------------------------------------------------------------------------------- 6. Canadian Government Bond, 1.75%, 9/1/19 2.48 -------------------------------------------------------------------------------- 7. Japan Government Ten Year Bond, 0.1%, 9/20/26 2.25 -------------------------------------------------------------------------------- 8. United Kingdom Gilt, 3.5%, 1/22/45 1.69 -------------------------------------------------------------------------------- 9. Norway Government Bond, 4.5%, 5/22/19 (144A) 1.52 -------------------------------------------------------------------------------- 10. Pioneer ILS Interval Fund (l) 1.48 -------------------------------------------------------------------------------- ** 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 securities listed. (l) Affiliated fund managed by Amundi Pioneer Asset Management, Inc., formerly Pioneer Investment Management, Inc. (the Adviser). 10 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Prices and Distributions | 10/31/17 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 10/31/17 10/31/16 -------------------------------------------------------------------------------- A $10.70 $10.60 -------------------------------------------------------------------------------- C $10.73 $10.63 -------------------------------------------------------------------------------- Y $10.80 $10.69 -------------------------------------------------------------------------------- Distributions per Share: 11/1/16-10/31/17 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Tax Return Class Income Capital Gains Capital Gains of Capital -------------------------------------------------------------------------------- A $0.1939 $0.0246 $0.0328 $0.0387 -------------------------------------------------------------------------------- C $0.1061 $0.0246 $0.0328 $0.0387 -------------------------------------------------------------------------------- Y $0.2231 $0.0246 $0.0328 $0.0387 -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Bloomberg 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 12-14. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 11 Performance Update | 10/31/17 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer Global Multisector Income Fund at public offering price during the periods shown, compared to that of the Bloomberg Barclays Global Aggregate Bond Index. Average Annual Total Returns (As of October 31, 2017) -------------------------------------------------------------------------------- Bloomberg Barclays Net Public Global Asset Offering Aggregate Value Price Bond Period (NAV) (POP) Index -------------------------------------------------------------------------------- Life of Class (12/27/2007) 4.25% 3.76% 2.99% 5 years 2.18 1.25 0.43 1 year 3.75 -0.92 1.18 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2017) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.69% 1.02% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Global Bloomberg Barclays Global Multisector Income Fund Aggregate Bond Index 12/07 $ 9,550 $10,000 10/08 $ 9,100 $ 9,589 10/09 $11,064 $11,354 10/10 $11,861 $12,136 10/11 $12,243 $12,630 10/12 $12,975 $13,078 10/13 $12,918 $12,876 10/14 $13,326 $12,905 10/15 $13,193 $12,508 10/16 $13,931 $13,207 10/17 $14,453 $13,363 Call 1-800-225-6292 or visit www.amundipioneer.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. POP returns reflect deduction of maximum 4.50% sales charge. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through March 1, 2018, for Class A shares. There can be no assurance that Amundi Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Please refer to the financial highlights for a more current expense ratio. 12 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Performance Update | 10/31/17 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C shares of Pioneer Global Multisector Income Fund during the periods shown, compared to that of the Bloomberg Barclays Global Aggregate Bond Index. Average Annual Total Returns (As of October 31, 2017) -------------------------------------------------------------------------------- Bloomberg Barclays Global Aggregate If If Bond Period Held Redeemed Index -------------------------------------------------------------------------------- Life of Class (12/27/2007) 3.37% 3.37% 2.99% 5 years 1.30 1.30 0.43 1 year 2.88 2.88 1.18 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2017) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.55% 1.92% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Global Bloomberg Barclays Global Multisector Income Fund Aggregate Bond Index 12/07 $10,000 $10,000 10/08 $ 9,452 $ 9,589 10/09 $11,395 $11,354 10/10 $12,130 $12,136 10/11 $12,420 $12,630 10/12 $13,053 $13,078 10/13 $12,891 $12,876 10/14 $13,179 $12,905 10/15 $12,932 $12,508 10/16 $13,536 $13,207 10/17 $13,926 $13,363 Call 1-800-225-6292 or visit www.amundipioneer.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through March 1, 2018, for Class C shares. There can be no assurance that Amundi Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Please refer to the financial highlights for a more current expense ratio. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 13 Performance Update | 10/31/17 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer Global Multisector Income Fund during the periods shown, compared to that of the Bloomberg Barclays Global Aggregate Bond Index. Average Annual Total Returns (As of October 31, 2017) -------------------------------------------------------------------------------- Bloomberg Barclays Net Global Asset Aggregate Value Bond Period (NAV) Index -------------------------------------------------------------------------------- Life of Class (12/27/2007) 4.50% 2.99% 5 years 2.44 0.43 1 year 4.10 1.18 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2017) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.43% 0.77% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer Global Bloomberg Barclays Global Multisector Income Fund Aggregate Bond Index 12/07 $5,000,000 $5,000,000 10/08 $4,767,893 $4,794,284 10/09 $5,801,982 $5,677,007 10/10 $6,235,980 $6,067,959 10/11 $6,464,208 $6,315,241 10/12 $6,867,704 $6,538,878 10/13 $6,850,412 $6,438,144 10/14 $7,084,387 $6,452,339 10/15 $7,040,336 $6,253,991 10/16 $7,444,084 $6,603,621 10/17 $7,748,921 $6,681,289 Call 1-800-225-6292 or visit www.amundipioneer.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects the contractual expense limitation currently in effect through March 1, 2018, for Class Y shares. There can be no assurance that Amundi Pioneer will extend the expense limitation beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Please refer to the financial highlights for a more current expense ratio. 14 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 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 Multisector Income Fund Based on actual returns from May 1, 2017, through October 31, 2017. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account Value on 5/1/17 $1,000.00 $1,000.00 $1,000.00 -------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,027.94 $1,023.68 $1,030.08 on 10/31/17 -------------------------------------------------------------------------------- Expenses Paid During Period* $ 5.11 $ 9.23 $ 3.84 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.00%, 1.81% and 0.75% for Class A, Class C and Class Y shares respectively, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 15 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads) that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer Global Multisector Income Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from May 1, 2017, through October 31, 2017. ----------------------------------------------------------------------------------- Share Class A C Y ----------------------------------------------------------------------------------- Beginning Account Value on 5/1/17 $1,000.00 $1,000.00 $1,000.00 ----------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,020.16 $1,016.08 $1,021.42 on 10/31/17 ----------------------------------------------------------------------------------- Expenses Paid During Period* $ 5.09 $ 9.20 $ 3.82 ----------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.00%, 1.81% and 0.75% for Class A, Class C and Class Y shares respectively, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). 16 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Schedule of Investments | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- UNAFFILIATED ISSUERS -- 96.9% CONVERTIBLE CORPORATE BOND -- 0.0%+ of Net Assets CAPITAL GOODS -- 0.0%+ Electrical Components & Equipment -- 0.0%+ 31,000(a) General Cable Corp., 4.5%, 11/15/29 $ 29,779 -------------- Total Capital Goods $ 29,779 ----------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE CORPORATE BOND (Cost $30,802) $ 29,779 ----------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------- Shares ----------------------------------------------------------------------------------------------------- PREFERRED STOCK -- 0.0%+ of Net Assets DIVERSIFIED FINANCIALS -- 0.0%+ Consumer Finance -- 0.0%+ 231(b) GMAC Capital Trust I, 7.1% (3 Month USD LIBOR + 579 bps), 2/15/40 $ 6,066 -------------- Total Diversified Financials $ 6,066 ----------------------------------------------------------------------------------------------------- TOTAL PREFERRED STOCK (Cost $4,505) $ 6,066 ----------------------------------------------------------------------------------------------------- CONVERTIBLE PREFERRED STOCKS -- 0.5% of Net Assets BANKS -- 0.5% Diversified Banks -- 0.5% 94(c) Bank of America Corp., 7.25% $ 121,914 95(c) Wells Fargo & Co., 7.5% 124,450 -------------- Total Banks $ 246,364 ----------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE PREFERRED STOCKS (Cost $220,127) $ 246,364 ----------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) ----------------------------------------------------------------------------------------------------- ASSET BACKED SECURITIES -- 0.9% of Net Assets BANKS -- 0.8% Thrifts & Mortgage Finance -- 0.8% 6,172(b) New Century Home Equity Loan Trust, Series 2005-1, Class A2C, 1.938% (1 Month USD LIBOR + 70 bps), 3/25/35 $ 6,178 100,000 Progress Residential Trust, Series 2017-SFR1, Class E, 4.261%, 8/17/34 (144A) 100,775 95,821(a) RCO Mortgage LLC, Series 2017-1, Class A1, 3.375%, 8/25/22 (144A) 96,246 381(a) Structured Asset Securities Corp., Series 2004-19XS, Class A6B, 5.052%, 10/25/34 390 18,067(a) Terwin Mortgage Trust, Series 2005-16HE, Class AF2, 4.761%, 9/25/36 18,178 121,153(d) Towd Point Mortgage Trust, Series 2017-4, Class A1, 2.75%, 6/25/57 (144A) 121,446 The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 17 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 62,686(a) VOLT LVIII LLC, Series 2017-NPL5, Class A1, 3.375%, 5/28/47 (144A) $ 63,112 -------------- Total Banks $ 406,325 ----------------------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 0.1% Food Retail -- 0.1% 44,491 CKE Restaurant Holdings, Inc., Series 2013-1A, Class A2, 4.474%, 3/20/43 (144A) $ 44,818 -------------- Total Food & Staples Retailing $ 44,818 ----------------------------------------------------------------------------------------------------- TOTAL ASSET BACKED SECURITIES (Cost $448,992) $ 451,143 ----------------------------------------------------------------------------------------------------- COLLATERALIZED MORTGAGE OBLIGATIONS -- 4.8% of Net Assets BANKS -- 4.5% Thrifts & Mortgage Finance -- 4.5% 53,454(d) Agate Bay Mortgage Trust, Series 2015-1, Class A13, 3.5%, 1/25/45 (144A) $ 54,083 43,192(d) Agate Bay Mortgage Trust, Series 2015-5, Class A3, 3.5%, 7/25/45 (144A) 43,943 1,676(b) Alternative Loan Trust, Series 2003-14T1, Class A9, 1.688% (1 Month USD LIBOR + 45 bps), 8/25/18 1,268 100,000(b) Arbor Realty Commercial Real Estate Notes, Ltd., Series 2017-FL1, Class B, 3.739% (1 Month USD LIBOR + 250 bps), 4/15/27 (144A) 100,500 100,000(b) BAMLL Commercial Mortgage Securities Trust, Series 2014-FL1, Class B, 3.439% (1 Month USD LIBOR + 220 bps), 12/15/31 (144A) 100,193 80,000 BANK, Series 2017-BNK5, Class AS, 3.624%, 6/15/60 81,369 50,000 BANK, Series 2017-BNK4, Class B, 3.931%, 11/15/50 51,496 70,908(a)(e) Bayview Commercial Asset Trust, Series 2007-2A, Class IO, 7/25/37 (144A) -- 3,394(d) CHL Mortgage Pass-Through Trust, Series 2003-56, Class 4A2, 3.646%, 12/25/33 3,454 100,000 Citigroup Commercial Mortgage Trust, Series 2015-GC27, Class A5, 3.137%, 2/10/48 101,277 75,000(d) Citigroup Commercial Mortgage Trust, Series 2014-GC25, Class B, 4.345%, 10/10/47 78,260 100,000(d) Citigroup Commercial Mortgage Trust, Series 2014-GC19, Class B, 4.805%, 3/10/47 106,793 100,000(b) CLNS Trust, Series 2017-IKPR, Class C, 2.337% (1 Month USD LIBOR + 110 bps), 6/11/32 (144A) 100,000 100,000(b) Cold Storage Trust, Series 2017-ICE3, Class C, 2.584% (1 Month USD LIBOR + 135 bps), 4/15/36 (144A) 100,407 50,000 COMM Mortgage Trust, Series 2013-LC6, Class A4, 2.941%, 1/10/46 50,851 100,000(d) COMM Mortgage Trust, Series 2015-CR25, Class B, 4.546%, 8/10/48 106,660 The accompanying notes are an integral part of these financial statements. 18 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- (continued) 90,000 Commercial Mortgage Pass Through Certificates, Series 2012-CR3, Class A3, 2.822%, 10/15/45 $ 91,173 100,000 CSAIL Commercial Mortgage Trust, Series 2016-C7, Class A5, 3.502%, 11/15/49 103,444 50,000(d) CSAIL Commercial Mortgage Trust, Series 2016-C5, Class C, 4.536%, 11/15/48 51,162 25,000 GS Mortgage Securities Corp. II, Series 2013-GC10, Class B, 3.682%, 2/10/46 (144A) 25,531 150,000(d) GS Mortgage Securities RE-Remic Trust, Series 2015-FRR1, Class K3A, 3.496%, 6/27/41 149,259 100,000(b) IMT Trust, Series 2017-APTS, Class BFL, 2.189% (1 Month USD LIBOR + 95 bps), 6/15/34 (144A) 100,000 61,793(b) Interstar Millennium Trust, Series 2003-3G, Class A2, 1.83% (3 Month USD LIBOR + 50 bps), 9/27/35 58,831 75,000 JP Morgan Chase Commercial Mortgage Securities Trust, Series 2012-LC9, Class A5, 2.84%, 12/15/47 76,067 28,985 JP Morgan Chase Commercial Mortgage Securities Trust, Series 2011-C5, Class A3, 4.171%, 8/15/46 30,567 84,360(d) JP Morgan Mortgage Trust, Series 2016-3, Class 2A1, 3.0%, 10/25/46 (144A) 85,441 50,000 JPMBB Commercial Mortgage Securities Trust, Series 2014-C22, Class A4, 3.801%, 9/15/47 52,751 35,895(d) NRP Mortgage Trust, Series 2013-1, Class A1, 3.25%, 7/25/43 (144A) 36,062 GBP 38,736(b) Paragon Secured Finance No. 1 Plc, Series PSF 1A, Class A, 0.68% (3 Month GBP LIBOR + 40 bps), 11/15/35 51,180 23,971(d) Sequoia Mortgage Trust, Series 2013-4, Class A2, 2.5%, 4/25/43 23,362 85,615(d) Sequoia Mortgage Trust, Series 2012-3, Class A1, 3.5%, 7/25/42 87,337 -------------- Total Banks $ 2,102,721 ----------------------------------------------------------------------------------------------------- GOVERNMENT -- 0.3% Government -- 0.3% 6,335 Fannie Mae REMICS, Series 2009-36, Class HX, 4.5%, 6/25/29 $ 6,709 45,000(d) FREMF Mortgage Trust, Series 2010-K9, Class B, 5.206%, 9/25/45 (144A) 48,043 50,000(d) FREMF Mortgage Trust, Series 2015-K51, Class B, 3.953%, 10/25/48 (144A) 51,357 18,915 Government National Mortgage Association, Series 2005-61, Class UZ, 5.25%, 8/16/35 20,577 23,548 Government National Mortgage Association, Series 2009-83, Class EB, 4.5%, 9/20/39 25,179 -------------- Total Government $ 151,865 ----------------------------------------------------------------------------------------------------- TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $2,273,908) $ 2,254,586 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 19 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- CORPORATE BONDS -- 32.2% of Net Assets AUTOMOBILES & COMPONENTS -- 0.2% Automobile Manufacturers -- 0.2% 35,000 Ford Motor Co., 4.346%, 12/8/26 $ 36,472 35,000 General Motors Co., 6.6%, 4/1/36 41,884 -------------- Total Automobiles & Components $ 78,356 ----------------------------------------------------------------------------------------------------- BANKS -- 7.6% Diversified Banks -- 7.2% 200,000 Access Bank Plc, 10.5%, 10/19/21 (144A) $ 226,044 INR 2,160,000 Asian Development Bank, 5.9%, 12/20/22 33,230 INR 2,100,000 Asian Development Bank, 6.2%, 10/6/26 32,654 INR 1,740,000 Asian Development Bank, 6.45%, 8/8/21 27,438 EUR 200,000(d) Barclays Plc, 2.625% (5 Year EUR Swap Rate + 245 bps), 11/11/25 242,628 EUR 150,000 BNP Paribas SA, 2.375%, 2/17/25 186,591 EUR 200,000 BPCE SA, 2.875%, 4/22/26 257,290 75,000 Cooperatieve Rabobank UA, 3.875%, 2/8/22 79,610 EUR 200,000(c)(d) Erste Group Bank AG, 8.875% (5 Year EUR Swap Rate + 902 bps) 288,920 ARS 1,280,000(f) European Bank for Reconstruction & Development, 2/1/19 57,910 INR 11,500,000 European Bank for Reconstruction & Development, 6.0%, 5/4/20 179,568 200,000 Finansbank AS, 4.875%, 5/19/22 (144A) 197,282 EUR 200,000(d) ING Groep NV, 3.0% (5 Year EUR Swap Rate + 285 bps), 4/11/28 256,309 NZD 505,000 International Bank for Reconstruction & Development, 3.5%, 1/22/21 354,476 NZD 45,000 International Bank for Reconstruction & Development, 4.625%, 10/6/21 32,879 AUD 185,000 International Bank for Reconstruction & Development, 5.75%, 10/21/19 151,688 INR 1,350,000 International Bank for Reconstruction & Development, 5.75%, 10/28/19 20,936 EUR 200,000(c)(d) Lloyds Banking Group Plc, 6.375% (5 Year EUR Swap Rate + 529 bps) 258,873 100,000 Macquarie Bank, Ltd., 6.625%, 4/7/21 (144A) 112,034 200,000(c)(d) Royal Bank of Scotland Group Plc, 8.0% (5 Year USD Swap Rate + 572 bps) 228,640 EUR 200,000 UBS Group Funding Switzerland AG, 1.75%, 11/16/22 247,696 -------------- $ 3,472,696 ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- 0.4% GBP 125,000 Nationwide Building Society, 3.0%, 5/6/26 $ 176,807 -------------- Total Banks $ 3,649,503 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 20 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.8% Aerospace & Defense -- 0.5% 50,000 Embraer Netherlands Finance BV, 5.4%, 2/1/27 $ 53,575 65,000 Rockwell Collins, Inc., 3.2%, 3/15/24 66,265 EUR 100,000 TA MFG., Ltd., 3.625%, 4/15/23 (144A) 120,318 -------------- $ 240,158 ----------------------------------------------------------------------------------------------------- Building Products -- 0.3% 30,000 Masco Corp., 4.375%, 4/1/26 $ 31,899 19,000 Masco Corp., 5.95%, 3/15/22 21,314 35,000 Owens Corning, 3.4%, 8/15/26 34,404 35,000 Owens Corning, 4.2%, 12/1/24 36,809 30,000 Standard Industries, Inc., 5.375%, 11/15/24 (144A) 31,647 -------------- $ 156,073 -------------- Total Capital Goods $ 396,231 ----------------------------------------------------------------------------------------------------- CONSUMER SERVICES -- 0.4% Casinos & Gaming -- 0.1% 50,000 Scientific Games International, Inc., 10.0%, 12/1/22 $ 55,309 ----------------------------------------------------------------------------------------------------- Education Services -- 0.3% 25,000 Massachusetts Institute of Technology, 5.6%, 7/1/11 $ 33,524 75,000 Tufts University, 5.017%, 4/15/12 84,332 -------------- $ 117,856 -------------- Total Consumer Services $ 173,165 ----------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 6.1% Consumer Finance -- 3.5% 40,000 Capital One Financial Corp., 3.75%, 7/28/26 $ 39,777 INR 81,420,000 International Finance Corp., 6.3%, 11/25/24 1,273,992 INR 20,750,000 International Finance Corp., 8.25%, 6/10/21 344,497 -------------- $ 1,658,266 ----------------------------------------------------------------------------------------------------- Diversified Capital Markets -- 0.6% EUR 200,000(c)(d) Intesa Sanpaolo S.p.A., 7.75% (5 Year EUR Swap Rate + 719 bps) $ 282,925 10,000 Macquarie Group, Ltd., 6.0%, 1/14/20 (144A) 10,768 -------------- $ 293,693 ----------------------------------------------------------------------------------------------------- Investment Banking & Brokerage -- 0.3% 75,000 Morgan Stanley, 4.1%, 5/22/23 $ 78,961 50,000 Morgan Stanley, 4.875%, 11/1/22 54,144 -------------- $ 133,105 ----------------------------------------------------------------------------------------------------- Other Diversified Financial Services -- 0.5% IDR 2,440,000,000 European Investment Bank, 7.2%, 7/9/19 (144A) $ 181,586 NZD 100,000 JPMorgan Chase & Co., 4.25%, 11/2/18 69,505 -------------- $ 251,091 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 21 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Specialized Finance -- 1.2% 56,000 Cantor Fitzgerald LP, 7.875%, 10/15/19 (144A) $ 61,216 200,000 Gerdau Trade, Inc., 4.875%, 10/24/27 (144A) 200,650 EUR 100,000 Holcim Finance Luxembourg SA, 2.25%, 5/26/28 125,841 200,000 MassMutual Global Funding II, 2.75%, 6/22/24 (144A) 199,042 -------------- $ 586,749 -------------- Total Diversified Financials $ 2,922,904 ----------------------------------------------------------------------------------------------------- ENERGY -- 5.7% Integrated Oil & Gas -- 2.6% EUR 175,000 BP Capital Markets Plc, 1.373%, 3/3/22 $ 215,121 240,000 Petrobras Global Finance BV, 5.299%, 1/27/25 (144A) 240,780 240,000 Petrobras Global Finance BV, 5.375%, 1/27/21 252,300 155,000 Petroleos Mexicanos, 3.5%, 1/30/23 151,327 EUR 200,000(d) Repsol International Finance BV, 4.5% (EUR Swap Rate + 420 bps), 3/25/75 259,769 ARS 2,154,200 YPF SA, 16.5%, 5/9/22 (144A) 114,809 -------------- $ 1,234,106 ----------------------------------------------------------------------------------------------------- Oil & Gas Drilling -- 0.3% 35,000 Freeport-McMoRan, Inc., 6.75%, 2/1/22 $ 36,400 100,000 Rowan Cos., Inc., 4.75%, 1/15/24 88,750 -------------- $ 125,150 ----------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 0.7% 75,000 Antero Resources Corp., 5.625%, 6/1/23 $ 78,562 35,000 Canadian Natural Resources, Ltd., 6.25%, 3/15/38 43,269 100,000 Hilcorp Energy I LP / Hilcorp Finance Co., 5.75%, 10/1/25 (144A) 102,375 100,000 Range Resources Corp., 5.0%, 3/15/23 98,998 -------------- $ 323,204 ----------------------------------------------------------------------------------------------------- Oil & Gas Refining & Marketing -- 0.4% 125,000 Phillips 66 Partners LP, 3.75%, 3/1/28 $ 125,475 29,000 Valero Energy Corp., 6.625%, 6/15/37 37,225 21,000 Valero Energy Corp., 9.375%, 3/15/19 23,035 -------------- $ 185,735 ----------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation -- 1.7% 50,000 Boardwalk Pipelines LP, 4.95%, 12/15/24 $ 53,341 55,000 Cheniere Energy Partners LP, 5.25%, 10/1/25 (144A) 56,650 25,000 DCP Midstream Operating LP, 9.75%, 3/15/19 (144A) 27,250 75,000 Enable Midstream Partners LP, 3.9%, 5/15/24 75,617 100,000 Energy Transfer Equity LP, 5.875%, 1/15/24 108,500 125,000 Kinder Morgan, Inc., 5.55%, 6/1/45 135,862 40,000 MPLX LP, 4.875%, 12/1/24 43,502 75,000 Plains All American Pipeline LP / PAA Finance Corp., 4.65%, 10/15/25 77,720 The accompanying notes are an integral part of these financial statements. 22 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation -- (continued) 60,000 Sabine Pass Liquefaction LLC, 5.0%, 3/15/27 $ 64,553 10,000 Spectra Energy Capital LLC, 6.75%, 7/15/18 10,309 60,000 Sunoco Logistics Partners Operations LP, 6.1%, 2/15/42 64,340 75,000 Williams Cos., Inc., 5.75%, 6/24/44 79,500 13,000 Williams Cos., Inc., 7.75%, 6/15/31 15,860 15,000 Williams Partners LP, 5.1%, 9/15/45 16,070 -------------- $ 829,074 -------------- Total Energy $ 2,697,269 ----------------------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 0.1% Drug Retail -- 0.0%+ 12,186 CVS Pass-Through Trust, 5.773%, 1/10/33 (144A) $ 13,656 ----------------------------------------------------------------------------------------------------- Food Retail -- 0.1% 40,000 Alimentation Couche-Tard, Inc., 3.55%, 7/26/27 (144A) $ 40,135 -------------- Total Food & Staples Retailing $ 53,791 ----------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 1.0% Packaged Foods & Meats -- 1.0% GBP 100,000 Boparan Finance Plc, 5.5%, 7/15/21 (144A) $ 125,693 70,000 Kraft Heinz Foods Co., 3.95%, 7/15/25 72,635 200,000 Marfrig Holdings Europe BV, 8.0%, 6/8/23 (144A) 209,000 90,000 Post Holdings, Inc., 5.0%, 8/15/26 (144A) 90,450 -------------- Total Food, Beverage & Tobacco $ 497,778 ----------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 0.7% Health Care Distributors -- 0.1% 41,000 Cardinal Health, Inc., 3.079%, 6/15/24 $ 40,729 ----------------------------------------------------------------------------------------------------- Health Care Facilities -- 0.2% 70,000 CHS/Community Health Systems, Inc., 6.875%, 2/1/22 $ 50,662 50,000 Kindred Healthcare, Inc., 6.375%, 4/15/22 46,275 -------------- $ 96,937 ----------------------------------------------------------------------------------------------------- Health Care Technology -- 0.2% EUR 100,000 Quintiles IMS, Inc., 2.875%, 9/15/25 (144A) $ 118,248 ----------------------------------------------------------------------------------------------------- Managed Health Care -- 0.2% 30,000 Centene Corp., 5.625%, 2/15/21 $ 31,125 25,000 Centene Corp., 6.125%, 2/15/24 26,875 20,000 Humana, Inc., 3.95%, 3/15/27 20,655 -------------- $ 78,655 -------------- Total Health Care Equipment & Services $ 334,569 ----------------------------------------------------------------------------------------------------- INSURANCE -- 1.0% Insurance Brokers -- 0.2% 100,000 Brown & Brown, Inc., 4.2%, 9/15/24 $ 105,103 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 23 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Life & Health Insurance -- 0.1% 45,000 Protective Life Corp., 7.375%, 10/15/19 $ 49,334 ----------------------------------------------------------------------------------------------------- Multi-line Insurance -- 0.2% 60,000 AXA SA, 8.6%, 12/15/30 $ 86,400 ----------------------------------------------------------------------------------------------------- Property & Casualty Insurance -- 0.3% 35,000 Delphi Financial Group, Inc., 7.875%, 1/31/20 $ 38,982 100,000(d) Farmers Insurance Exchange, 4.747% (3 Month USD LIBOR + 323 bps), 11/1/57 (144A) 100,200 -------------- $ 139,182 ----------------------------------------------------------------------------------------------------- Reinsurance -- 0.2% 30,000+(g)(h) Gullane Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 11/30/20 $ 654 30,000+(g)(h) Gullane Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 11/30/21 29,406 30,000+(g)(h) Lorenz Re, Ltd. (Prime, Ltd.), Variable Rate Notes, 3/31/19 1,680 30,000+(g)(h) Lorenz Re, Ltd. (Prime, Ltd.), Variable Rate Notes, 3/31/20 27,027 30,000+(g)(h) Pangaea Re Segregated Account (Artex SAC, Ltd.), Series 2015-2, Variable Rate Notes, 7/1/19 312 30,000+(g)(h) Pangaea Re Segregated Account (Artex SAC, Ltd.), Series 2016-1, Variable Rate Notes, 2/1/20 1,983 50,000+(g)(h) Pangaea Re Segregated Account (Artex SAC, Ltd.), Series 2017-1, Variable Rate Notes, 11/30/21 41,960 -------------- $ 103,022 -------------- Total Insurance $ 483,041 ----------------------------------------------------------------------------------------------------- MATERIALS -- 1.1% Construction Materials -- 0.3% EUR 125,000 CRH Finance, DAC, 3.125%, 4/3/23 $ 166,546 ----------------------------------------------------------------------------------------------------- Diversified Chemicals -- 0.2% 85,000 CF Industries, Inc., 3.45%, 6/1/23 $ 83,938 ----------------------------------------------------------------------------------------------------- Fertilizers & Agricultural Chemicals -- 0.2% 85,000 Agrium, Inc., 5.25%, 1/15/45 $ 98,144 ----------------------------------------------------------------------------------------------------- Paper Packaging -- 0.4% 50,000 International Paper Co., 4.8%, 6/15/44 $ 54,466 5,000 International Paper Co., 6.0%, 11/15/41 6,230 EUR 100,000 SIG Combibloc Holdings SCA, 7.75%, 2/15/23 (144A) 122,907 -------------- $ 183,603 -------------- Total Materials $ 532,231 ----------------------------------------------------------------------------------------------------- MEDIA -- 1.0% Cable & Satellite -- 0.7% 100,000 Charter Communications Operating LLC / Charter Communications Operating Capital, 6.384%, 10/23/35 $ 115,248 60,000 Cox Communications, Inc., 3.35%, 9/15/26 (144A) 58,883 EUR 150,000 Sky Plc, 1.5%, 9/15/21 182,722 -------------- $ 356,853 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 24 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Movies & Entertainment -- 0.3% EUR 100,000 WMG Acquisition Corp., 4.125%, 11/1/24 (144A) $ 123,537 -------------- Total Media $ 480,390 ----------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 0.4% Biotechnology -- 0.2% 80,000 AbbVie, Inc., 3.2%, 5/14/26 $ 79,445 ----------------------------------------------------------------------------------------------------- Pharmaceuticals -- 0.2% EUR 100,000 Valeant Pharmaceuticals International, Inc, 4.5%, 5/15/23 $ 98,956 -------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 178,401 ----------------------------------------------------------------------------------------------------- REAL ESTATE -- 1.0% Diversified REITs -- 0.4% EUR 100,000(c)(d) ATF Netherlands BV, 3.75% (5 Year EUR Swap Rate + 438 bps) $ 123,257 55,000 Essex Portfolio LP, 3.625%, 5/1/27 55,426 -------------- $ 178,683 ----------------------------------------------------------------------------------------------------- Health Care REIT -- 0.1% 60,000 Healthcare Trust of America Holdings LP, 3.75%, 7/1/27 $ 60,013 ----------------------------------------------------------------------------------------------------- Office REITs -- 0.2% 25,000 Alexandria Real Estate Equities, Inc., 3.9%, 6/15/23 $ 25,904 40,000 Alexandria Real Estate Equities, Inc., 4.6%, 4/1/22 42,671 35,000 Highwoods Realty LP, 3.625%, 1/15/23 35,489 -------------- $ 104,064 ----------------------------------------------------------------------------------------------------- Residential REIT -- 0.1% 50,000 UDR, Inc., 4.0%, 10/1/25 $ 52,124 ----------------------------------------------------------------------------------------------------- Specialized REIT -- 0.2% 100,000 Uniti Group LP / Uniti Group Finance, Inc. / CSL Capital LLC, 6.0%, 4/15/23 (144A) $ 100,125 -------------- Total Real Estate $ 495,009 ----------------------------------------------------------------------------------------------------- RETAILING -- 0.1% Internet & Direct Marketing Retail -- 0.1% 50,000 Expedia, Inc., 3.8%, 2/15/28 (144A) $ 48,645 15,000 Priceline Group, Inc., 3.55%, 3/15/28 15,120 -------------- Total Retailing $ 63,765 ----------------------------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 0.1% Semiconductor Equipment -- 0.0%+ 25,000 Entegris, Inc., 6.0%, 4/1/22 (144A) $ 26,125 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 25 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Semiconductors -- 0.1% 25,000 Broadcom Corp. / Broadcom Cayman Finance, Ltd., 3.125%, 1/15/25 (144A) $ 24,792 15,000 Broadcom Corp. / Broadcom Cayman Finance, Ltd., 3.625%, 1/15/24 (144A) 15,492 -------------- $ 40,284 -------------- Total Semiconductors & Semiconductor Equipment $ 66,409 ----------------------------------------------------------------------------------------------------- TECHNOLOGY HARDWARE & EQUIPMENT -- 0.5% Electronic Components -- 0.3% 41,000 Amphenol Corp., 3.2%, 4/1/24 $ 41,322 EUR 100,000 Belden, Inc., 2.875%, 9/15/25 (144A) 116,787 -------------- $ 158,109 ----------------------------------------------------------------------------------------------------- Electronic Manufacturing Services -- 0.2% 100,000 Flex, Ltd., 4.625%, 2/15/20 $ 104,352 -------------- Total Technology Hardware & Equipment $ 262,461 ----------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 2.0% Integrated Telecommunication Services -- 0.8% 40,000 Frontier Communications Corp., 7.125%, 1/15/23 $ 30,712 7,000 Frontier Communications Corp., 8.5%, 4/15/20 6,921 GBP 100,000 Koninklijke KPN NV, 5.0%, 11/18/26 156,999 EUR 125,000(c)(d) Orange SA, 5.0% (5 Year EUR Swap Rate + 399 bps) 171,911 25,000 Unison Ground Lease Funding LLC, 2.981%, 3/15/20 (144A) 24,550 -------------- $ 391,093 ----------------------------------------------------------------------------------------------------- Wireless Telecommunication Services -- 1.2% 30,000 Crown Castle Towers LLC, 4.883%, 8/15/20 (144A) $ 31,678 200,000 Digicel, Ltd., 6.0%, 4/15/21 (144A) 196,732 200,000 MTN Mauritius Investment, Ltd., 6.5%, 10/13/26 (144A) 216,000 50,000 SBA Tower Trust, 2.877%, 7/9/21 (144A) 49,625 50,000 Sprint Corp., 7.25%, 9/15/21 54,500 -------------- $ 548,535 -------------- Total Telecommunication Services $ 939,628 ----------------------------------------------------------------------------------------------------- TRANSPORTATION -- 0.0%+ Airlines -- 0.0% + 6,114 Delta Air Lines 2010-2 Class A Pass Through Trust, 4.95%, 5/23/19 $ 6,304 15,000 Delta Air Lines, Inc., 2.875%, 3/13/20 15,148 -------------- Total Transportation $ 21,452 ----------------------------------------------------------------------------------------------------- UTILITIES -- 2.4% Electric Utilities -- 1.8% EUR 100,000 EDP Finance BV, 1.875%, 9/29/23 $ 124,802 EUR 100,000(c)(d) Electricite de France SA, 4.25% (EUR Swap Rate + 302 bps) 124,224 100,000 Electricite de France SA, 6.0%, 1/22/14 (144A) 111,154 The accompanying notes are an integral part of these financial statements. 26 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Electric Utilities -- (continued) 200,000(d) Enel S.p.A., 8.75% (5 Year USD Swap Rate + 588 bps), 9/24/73 (144A) $ 247,000 GBP 75,000 innogy Finance BV, 5.625%, 12/6/23 120,425 85,000 NextEra Energy Capital Holdings, Inc., 3.55%, 5/1/27 87,547 50,000(c)(d) Southern California Edison Co., 6.25% (3 Month USD LIBOR + 420 bps) 56,437 10,000 West Penn Power Co., 5.95%, 12/15/17 (144A) 10,048 -------------- $ 881,637 ----------------------------------------------------------------------------------------------------- Gas Utilities -- 0.6% 15,000 Boston Gas Co., 3.15%, 8/1/27 (144A) $ 14,989 GBP 125,000 Cadent Finance Plc, 2.125%, 9/22/28 160,284 83,420 Nakilat, Inc., 6.267%, 12/31/33 (144A) 97,602 -------------- $ 272,875 -------------- Total Utilities $ 1,154,512 ----------------------------------------------------------------------------------------------------- TOTAL CORPORATE BONDS (Cost $14,502,088) $ 15,480,865 ----------------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- 17.5% of Net Assets 25,680 Fannie Mae, 3.0%, 5/1/31 $ 26,385 45,068 Fannie Mae, 3.0%, 2/1/43 45,387 28,856 Fannie Mae, 3.0%, 3/1/43 29,061 33,601 Fannie Mae, 3.0%, 5/1/43 33,801 29,535 Fannie Mae, 3.0%, 5/1/43 29,773 32,891 Fannie Mae, 3.0%, 6/1/45 33,058 23,259 Fannie Mae, 3.0%, 9/1/46 23,285 46,699 Fannie Mae, 3.0%, 10/1/46 46,752 65,903 Fannie Mae, 3.0%, 11/1/46 65,978 47,504 Fannie Mae, 3.0%, 1/1/47 47,762 34,512 Fannie Mae, 3.0%, 3/1/47 34,551 31,573 Fannie Mae, 3.5%, 2/1/29 32,812 52,581 Fannie Mae, 3.5%, 6/1/42 54,415 143,778 Fannie Mae, 3.5%, 9/1/42 148,480 150,140 Fannie Mae, 3.5%, 5/1/44 155,037 91,661 Fannie Mae, 3.5%, 2/1/45 95,034 34,691 Fannie Mae, 3.5%, 2/1/45 35,902 23,327 Fannie Mae, 3.5%, 6/1/45 24,065 46,997 Fannie Mae, 3.5%, 8/1/45 48,346 20,442 Fannie Mae, 3.5%, 8/1/45 21,029 67,244 Fannie Mae, 3.5%, 9/1/45 69,246 22,090 Fannie Mae, 3.5%, 9/1/45 22,873 103,630 Fannie Mae, 3.5%, 10/1/45 106,902 23,482 Fannie Mae, 3.5%, 1/1/46 24,156 25,491 Fannie Mae, 3.5%, 7/1/46 26,222 The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 27 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 37,828 Fannie Mae, 3.5%, 9/1/46 $ 38,913 71,380 Fannie Mae, 3.5%, 12/1/46 73,429 49,001 Fannie Mae, 3.5%, 1/1/47 50,407 48,066 Fannie Mae, 3.5%, 1/1/47 49,743 38,131 Fannie Mae, 3.5%, 1/1/47 39,342 119,362 Fannie Mae, 3.5%, 2/1/47 122,788 92,730 Fannie Mae, 3.5%, 5/1/47 95,392 86,352 Fannie Mae, 3.5%, 5/1/47 88,831 72,667 Fannie Mae, 3.5%, 7/1/47 74,753 44,469 Fannie Mae, 3.5%, 7/1/47 45,745 141,570 Fannie Mae, 3.5%, 8/1/47 145,633 234,115 Fannie Mae, 3.5%, 10/1/47 240,835 40,877 Fannie Mae, 4.0%, 10/1/40 43,684 88,132 Fannie Mae, 4.0%, 1/1/42 92,877 16,672 Fannie Mae, 4.0%, 2/1/42 17,569 130,872 Fannie Mae, 4.0%, 10/1/43 138,503 44,736 Fannie Mae, 4.0%, 11/1/43 47,444 19,869 Fannie Mae, 4.0%, 10/1/44 20,878 95,155 Fannie Mae, 4.0%, 11/1/44 99,958 79,750 Fannie Mae, 4.0%, 10/1/45 83,734 108,908 Fannie Mae, 4.0%, 11/1/45 115,558 57,216 Fannie Mae, 4.0%, 12/1/45 60,070 44,744 Fannie Mae, 4.0%, 6/1/46 46,976 43,166 Fannie Mae, 4.0%, 8/1/46 45,324 24,533 Fannie Mae, 4.0%, 11/1/46 25,766 22,559 Fannie Mae, 4.0%, 11/1/46 23,696 163,651 Fannie Mae, 4.0%, 1/1/47 171,978 42,395 Fannie Mae, 4.0%, 4/1/47 44,774 38,823 Fannie Mae, 4.0%, 4/1/47 40,805 24,038 Fannie Mae, 4.0%, 4/1/47 25,391 72,982 Fannie Mae, 4.0%, 6/1/47 76,723 24,857 Fannie Mae, 4.0%, 6/1/47 26,130 23,544 Fannie Mae, 4.0%, 7/1/47 24,744 40,831 Fannie Mae, 4.0%, 8/1/47 42,937 25,000 Fannie Mae, 4.0%, 11/1/47 (TBA) 26,240 7,702 Fannie Mae, 4.5%, 11/1/40 8,326 15,724 Fannie Mae, 4.5%, 12/1/40 17,004 15,189 Fannie Mae, 4.5%, 4/1/41 16,346 10,779 Fannie Mae, 4.5%, 5/1/41 11,706 36,365 Fannie Mae, 4.5%, 11/1/43 38,940 47,946 Fannie Mae, 4.5%, 2/1/44 51,324 39,501 Fannie Mae, 4.5%, 2/1/44 42,294 40,534 Fannie Mae, 4.5%, 5/1/46 43,348 The accompanying notes are an integral part of these financial statements. 28 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 42,803 Fannie Mae, 4.5%, 2/1/47 $ 45,780 40,546 Fannie Mae, 5.0%, 8/1/31 44,051 16,881 Fannie Mae, 5.0%, 6/1/40 18,344 11,405 Fannie Mae, 5.5%, 10/1/35 12,663 14,567 Federal Home Loan Mortgage Corp., 3.0%, 9/1/42 14,666 16,791 Federal Home Loan Mortgage Corp., 3.0%, 1/1/43 16,905 32,790 Federal Home Loan Mortgage Corp., 3.0%, 2/1/43 33,015 62,980 Federal Home Loan Mortgage Corp., 3.0%, 4/1/43 63,411 38,332 Federal Home Loan Mortgage Corp., 3.0%, 4/1/43 38,592 18,049 Federal Home Loan Mortgage Corp., 3.0%, 5/1/43 18,158 23,620 Federal Home Loan Mortgage Corp., 3.0%, 9/1/46 23,678 24,627 Federal Home Loan Mortgage Corp., 3.0%, 12/1/46 24,681 69,843 Federal Home Loan Mortgage Corp., 3.0%, 2/1/47 70,004 18,348 Federal Home Loan Mortgage Corp., 3.5%, 10/1/42 18,986 95,859 Federal Home Loan Mortgage Corp., 3.5%, 6/1/45 99,222 116,229 Federal Home Loan Mortgage Corp., 3.5%, 11/1/45 119,849 20,109 Federal Home Loan Mortgage Corp., 3.5%, 3/1/46 20,687 83,963 Federal Home Loan Mortgage Corp., 3.5%, 7/1/46 87,059 117,167 Federal Home Loan Mortgage Corp., 3.5%, 8/1/46 121,241 94,371 Federal Home Loan Mortgage Corp., 3.5%, 8/1/46 97,490 36,046 Federal Home Loan Mortgage Corp., 3.5%, 8/1/46 37,233 70,208 Federal Home Loan Mortgage Corp., 3.5%, 12/1/46 72,650 24,849 Federal Home Loan Mortgage Corp., 3.5%, 6/1/47 25,563 59,085 Federal Home Loan Mortgage Corp., 3.5%, 7/1/47 60,781 58,914 Federal Home Loan Mortgage Corp., 3.5%, 8/1/47 60,605 115,990 Federal Home Loan Mortgage Corp., 4.0%, 1/1/44 121,898 34,779 Federal Home Loan Mortgage Corp., 4.0%, 2/1/44 36,833 199,604 Federal Home Loan Mortgage Corp., 4.0%, 5/1/44 209,585 13,509 Federal Home Loan Mortgage Corp., 4.0%, 12/1/44 14,179 22,107 Federal Home Loan Mortgage Corp., 4.0%, 1/1/46 23,205 37,772 Federal Home Loan Mortgage Corp., 4.0%, 2/1/46 39,648 111,890 Federal Home Loan Mortgage Corp., 4.0%, 4/1/47 117,446 48,545 Federal Home Loan Mortgage Corp., 4.0%, 4/1/47 51,309 48,582 Federal Home Loan Mortgage Corp., 4.0%, 4/1/47 50,994 24,752 Federal Home Loan Mortgage Corp., 4.0%, 4/1/47 26,161 24,378 Federal Home Loan Mortgage Corp., 4.0%, 4/1/47 25,766 119,855 Federal Home Loan Mortgage Corp., 4.0%, 5/1/47 125,806 224,249 Federal Home Loan Mortgage Corp., 4.0%, 10/1/47 235,384 45,383 Federal Home Loan Mortgage Corp., 4.5%, 6/1/41 48,658 80,860 Federal Home Loan Mortgage Corp., 4.5%, 5/1/47 86,380 23,973 Federal Home Loan Mortgage Corp., 5.0%, 9/1/38 26,172 27,892 Federal Home Loan Mortgage Corp., 5.0%, 10/1/38 30,451 4,376 Federal Home Loan Mortgage Corp., 5.0%, 5/1/39 4,805 The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 29 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- (continued) 7,211 Federal Home Loan Mortgage Corp., 5.0%, 12/1/39 $ 7,929 18,192 Federal Home Loan Mortgage Corp., 6.0%, 8/1/37 20,645 16,106 Federal Home Loan Mortgage Corp., 6.5%, 1/1/38 18,320 35,965 Federal Home Loan Mortgage Corp., 6.5%, 4/1/38 39,931 59,388 Government National Mortgage Association I, 3.5%, 11/15/41 61,846 10,547 Government National Mortgage Association I, 3.5%, 10/15/42 11,003 33,953 Government National Mortgage Association I, 3.5%, 8/15/46 35,304 44,088 Government National Mortgage Association I, 4.0%, 4/15/45 46,380 62,576 Government National Mortgage Association I, 4.0%, 6/15/45 65,806 30,243 Government National Mortgage Association I, 4.5%, 1/15/40 32,692 24,509 Government National Mortgage Association I, 4.5%, 9/15/40 26,451 12,059 Government National Mortgage Association I, 4.5%, 10/15/40 12,903 21,935 Government National Mortgage Association I, 4.5%, 7/15/41 23,596 36,678 Government National Mortgage Association II, 3.0%, 9/20/46 37,146 35,108 Government National Mortgage Association II, 4.5%, 9/20/41 37,743 23,366 Government National Mortgage Association II, 4.5%, 10/20/44 24,796 50,099 Government National Mortgage Association II, 4.5%, 11/20/44 53,163 172,000 Government National Mortgage Association II, 4.5%, 10/20/47 182,868 300,000(f) U.S. Treasury Bill, 11/24/17 299,814 427,478 U.S. Treasury Inflation Indexed Bonds, 0.75%, 2/15/45 408,677 203,418 U.S. Treasury Inflation Indexed Bonds, 0.875%, 2/15/47 200,793 233,143 U.S. Treasury Inflation Indexed Bonds, 1.0%, 2/15/46 237,015 75,000 U.S. Treasury Note, 2.25%, 8/15/27 74,174 -------------- $ 8,396,159 ----------------------------------------------------------------------------------------------------- TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS (Cost $8,346,112) $ 8,396,159 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 30 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- FOREIGN GOVERNMENT BONDS -- 36.8% of Net Assets Argentina -- 3.6% 100,000 Argentine Republic Government International Bond, 6.875%, 1/26/27 $ 109,000 300,000 Argentine Republic Government International Bond, 7.5%, 4/22/26 339,000 250,000 City of Buenos Aires Argentina, 7.5%, 6/1/27 (144A) 279,283 ARS 1,349,000(f) Letras del Banco Central de la Republica Argentina, 4/18/18 67,583 300,000 Provincia de Buenos Aires, 9.125%, 3/16/24 (144A) 349,500 300,000 Provincia de Buenos Aires, 9.95%, 6/9/21 (144A) 348,795 210,000 Provincia de Entre Rios Argentina, 8.75%, 2/8/25 (144A) 227,325 -------------- $ 1,720,486 ----------------------------------------------------------------------------------------------------- Australia -- 3.2% AUD 1,725,000 Australia Government Bond, 4.75%, 4/21/27 $ 1,553,625 ----------------------------------------------------------------------------------------------------- Austria -- 0.2% EUR 50,000 Republic of Austria Government Bond, 4.15%, 3/15/37 (144A) $ 88,682 ----------------------------------------------------------------------------------------------------- Bahrain -- 0.4% 200,000 Bahrain Government International Bond, 7.0%, 10/12/28 (144A) $ 205,512 ----------------------------------------------------------------------------------------------------- Brazil -- 0.5% 228,000 Brazil Minas SPE via State of Minas Gerais, 5.333%, 2/15/28 (144A) $ 231,990 ----------------------------------------------------------------------------------------------------- Canada -- 4.9% CAD 1,500,000 Canadian Government Bond, 1.75%, 9/1/19 $ 1,171,185 CAD 1,500,000 Canadian Government Bond, 2.25%, 6/1/25 1,197,755 -------------- $ 2,368,940 ----------------------------------------------------------------------------------------------------- Cote D'Ivoire -- 1.2% EUR 100,000 Ivory Coast Government International Bond, 5.125%, 6/15/25 (144A) $ 123,056 415,000 Ivory Coast Government International Bond, 6.375%, 3/3/28 (144A) 430,893 -------------- $ 553,949 ----------------------------------------------------------------------------------------------------- Ecuador -- 0.7% 200,000 Ecuador Government International Bond, 8.875%, 10/23/27 (144A) $ 204,622 105,263(b) EP PetroEcuador via Noble Sovereign Funding I, Ltd., 6.961% (3 Month USD LIBOR + 563 bps), 9/24/19 107,158 -------------- $ 311,780 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 31 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Egypt -- 2.2% 220,000 Egypt Government International Bond, 7.5%, 1/31/27 (144A) $ 243,890 EGP 10,750,000(f) Egypt Treasury Bills, 3/6/18 573,103 EGP 4,700,000(f) Egypt Treasury Bills, 5/15/18 242,510 -------------- $ 1,059,503 ----------------------------------------------------------------------------------------------------- Gabon -- 0.8% 400,000 Gabon Government International Bond, 6.375%, 12/12/24 (144A) $ 392,064 ----------------------------------------------------------------------------------------------------- Germany -- 3.0% EUR 1,250,000 Bundesrepublik Deutschland, 0.25%, 2/15/27 $ 1,451,299 ----------------------------------------------------------------------------------------------------- Honduras -- 0.7% 315,000 Honduras Government International Bond, 6.25%, 1/19/27 (144A) $ 339,687 ----------------------------------------------------------------------------------------------------- Japan -- 3.2% JPY 120,000,000 Japan Government Ten Year Bond, 0.1%, 9/20/26 $ 1,061,557 JPY 50,000,000 Japan Government Ten Year Bond, 1.0%, 12/20/21 459,725 -------------- $ 1,521,282 ----------------------------------------------------------------------------------------------------- Mexico -- 1.1% MXN 3,830,000 Mexican Bonos, 4.75%, 6/14/18 $ 196,961 MXN 2,400,000 Mexican Bonos, 6.5%, 6/9/22 122,616 MXN 300,000 Mexican Bonos, 7.5%, 6/3/27 15,893 MXN 3,353,592 Mexican Udibonos, 2.0%, 6/9/22 165,905 -------------- $ 501,375 ----------------------------------------------------------------------------------------------------- New Zealand -- 3.5% NZD 2,125,000 New Zealand Government Bond, 5.5%, 4/15/23 $ 1,678,476 ----------------------------------------------------------------------------------------------------- Nigeria -- 0.9% 408,000 Africa Finance Corp., 4.375%, 4/29/20 (144A) $ 421,891 ----------------------------------------------------------------------------------------------------- Norway -- 1.5% NOK 5,500,000 Norway Government Bond, 4.5%, 5/22/19 (144A) $ 714,162 ----------------------------------------------------------------------------------------------------- Oman -- 0.4% 200,000 Oman Government International Bond, 5.375%, 3/8/27 (144A) $ 205,277 ----------------------------------------------------------------------------------------------------- Paraguay -- 0.4% 200,000 Paraguay Government International Bond, 4.7%, 3/27/27 (144A) $ 210,000 ----------------------------------------------------------------------------------------------------- Senegal -- 0.4% 200,000 Senegal Government International Bond, 6.25%, 5/23/33 (144A) $ 206,730 ----------------------------------------------------------------------------------------------------- Sri Lanka -- 0.5% 200,000 Sri Lanka Government International Bond, 6.2%, 5/11/27 (144A) $ 212,550 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 32 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Sweden -- 0.7% SEK 2,300,000 Sweden Government Bond, 2.5%, 5/12/25 $ 318,978 ----------------------------------------------------------------------------------------------------- Turkey -- 0.3% 140,000 Hazine Mustesarligi Varlik Kiralama AS, 5.004%, 4/6/23 (144A) $ 142,552 ----------------------------------------------------------------------------------------------------- United Kingdom -- 2.3% GBP 450,000 United Kingdom Gilt, 3.5%, 1/22/45 $ 794,317 GBP 150,000 United Kingdom Gilt, 4.25%, 9/7/39 282,632 -------------- $ 1,076,949 ----------------------------------------------------------------------------------------------------- Uruguay -- 0.2% UYU 2,910,000 Uruguay Government International Bond, 9.875%, 6/20/22 (144A) $ 105,939 ----------------------------------------------------------------------------------------------------- TOTAL FOREIGN GOVERNMENT BONDS (Cost $17,706,800) $ 17,593,678 ----------------------------------------------------------------------------------------------------- MUNICIPAL BONDS -- 1.0% of Net Assets (i) Municipal Higher Education -- 0.2% 25,000 Baylor University, Series A, 4.313%, 3/1/42 $ 26,029 25,000 California Educational Facilities Authority, Stanford University, Series U-7, 5.0%, 6/1/46 33,500 15,000 Massachusetts Development Finance Agency, Harvard University, Series A, 5.0%, 7/15/40 19,797 50,000 University of Virginia, Refunding General Green, Series A-2, 5.0%, 4/1/45 57,570 -------------- $ 136,896 ----------------------------------------------------------------------------------------------------- Municipal General -- 0.4% 70,000 JobsOhio Beverage System, Series B, 3.985%, 1/1/29 $ 74,297 20,000 JobsOhio Beverage System, Series B, 4.532%, 1/1/35 21,920 30,000 Virginia Commonwealth Transportation Board, Transportation Capital Projects, 4.0%, 5/15/31 32,416 30,000 Virginia Commonwealth Transportation Board, Transportation Capital Projects, 4.0%, 5/15/32 32,229 -------------- $ 160,862 ----------------------------------------------------------------------------------------------------- Municipal Obligation -- 0.2% 50,000(j) State of Texas, Transportation Commission Mobility Fund, Series A, 4.0%, 10/1/44 $ 52,812 50,000(j) State of Washington, Series R-2015D, 5.0%, 7/1/30 59,304 -------------- $ 112,116 ----------------------------------------------------------------------------------------------------- Municipal School District -- 0.2% 25,000(j) Frisco Independent School District, 4.0%, 8/15/40 $ 26,440 25,000(j) Frisco Independent School District, 4.0%, 8/15/45 $ 26,323 -------------- $ 52,763 ----------------------------------------------------------------------------------------------------- TOTAL MUNICIPAL BONDS (Cost $447,887) $ 462,637 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 33 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- SENIOR SECURED FLOATING RATE LOAN INTERESTS -- 3.2% of Net Assets*(b) AUTOMOBILES & COMPONENTS -- 0.2% Auto Parts & Equipment -- 0.2% 49,375 American Axle & Manufacturing, Inc., Tranche B Term Loan, 3.556% (LIBOR + 225 bps), 4/6/24 $ 49,463 49,389 Electrical Components International, Inc., Term Loan, 6.085% (LIBOR + 475 bps), 5/28/21 49,806 -------------- Total Automobiles & Components $ 99,269 ----------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.2% Aerospace & Defense -- 0.1% 50,000(k) MacDonald, Dettwiler and Associates, Ltd., Initial Term B Loan, 10/4/24 $ 50,357 ----------------------------------------------------------------------------------------------------- Industrial Conglomerates -- 0.1% 49,625 Milacron LLC, Term B Loan, 4.242% (LIBOR + 300 bps), 9/28/23 $ 49,956 -------------- Total Capital Goods $ 100,313 ----------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 0.1% Footwear -- 0.1% 49,750 Regal Cinemas Corp., New Term Loan, 3.242% (LIBOR + 200 bps), 4/1/22 $ 49,795 -------------- Total Consumer Durables & Apparel $ 49,795 ----------------------------------------------------------------------------------------------------- CONSUMER SERVICES -- 0.1% Specialized Consumer Services -- 0.1% 49,624 KUEHG Corp. (fka KC MergerSub, Inc.), Term B-2 Loan, 5.083% (LIBOR + 375 bps), 8/12/22 $ 49,847 -------------- Total Consumer Services $ 49,847 ----------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.6% Other Diversified Financial Services -- 0.5% 235,000 Commonwealth of The Bahamas, First Lien Term Loan, 5.266% (LIBOR + 375 bps), 9/30/19 $ 235,000 ----------------------------------------------------------------------------------------------------- Specialized Finance -- 0.1% 49,646 1011778 BC Unlimited Liability Co. (New Red Finance, Inc.) (aka Burger King/Tim Hortons), Term B-3 Loan, 3.528% (LIBOR + 225 bps), 2/16/24 $ 49,718 -------------- Total Diversified Financials $ 284,718 ----------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 0.1% Packaged Foods & Meats -- 0.1% 25,000 Give and Go Prepared Foods Corp., First Lien 2017 Term Loan, 5.564% (LIBOR + 425 bps), 7/29/23 $ 25,336 -------------- Total Food, Beverage & Tobacco $ 25,336 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 34 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 0.2% Health Care Facilities -- 0.1% 49,112 Kindred Healthcare, Inc., New Term Loan, 4.875% (LIBOR + 350 bps), 4/9/21 $ 49,348 ----------------------------------------------------------------------------------------------------- Health Care Technology -- 0.1% 24,875 Change Healthcare Holdings, Inc. (fka Emdeon, Inc.), Closing Date Term Loan, 3.992% (LIBOR + 275 bps), 3/1/24 $ 25,037 -------------- Total Health Care Equipment & Services $ 74,385 ----------------------------------------------------------------------------------------------------- HOUSEHOLD & PERSONAL PRODUCTS -- 0.2% Personal Products -- 0.2% 99,497 Revlon Consumer Products Corp., Initial Term Loan B, 4.742% (LIBOR + 350 bps), 9/7/23 $ 86,252 -------------- Total Household & Personal Products $ 86,252 ----------------------------------------------------------------------------------------------------- INSURANCE -- 0.1% Life & Health Insurance -- 0.1% 49,873 Integro Parent, Inc., First Lien Initial Term Loan, 7.113% (LIBOR + 575 bps), 10/31/22 $ 49,873 -------------- Total Insurance $ 49,873 ----------------------------------------------------------------------------------------------------- MATERIALS -- 0.1% Steel -- 0.1% 49,625 Zekelman Industries, Inc. (fka JMC Steel Group, Inc.), Term Loan, 4.073% (LIBOR + 275 bps), 6/14/21 $ 49,953 -------------- Total Materials $ 49,953 ----------------------------------------------------------------------------------------------------- MEDIA -- 0.1% Cable & Satellite -- 0.1% 49,000(k) UPC Financing Partnership, Facility AR, 1/15/26 $ 49,221 -------------- Total Media $ 49,221 ----------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 0.3% Pharmaceuticals -- 0.3% 99,750 Endo Luxembourg Finance Company I S.a.r.l., Initial Term Loan, 5.5% (LIBOR + 425 bps), 4/29/24 $ 101,172 49,598 RPI Finance Trust, Initial Term Loan B-6, 3.333% (LIBOR + 200 bps), 3/27/23 49,843 -------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 151,015 ----------------------------------------------------------------------------------------------------- REAL ESTATE -- 0.2% Retail REIT -- 0.2% 98,987 DTZ US Borrower LLC, First Lien 2015-1 Additional Term Loan, 4.586% (LIBOR + 325 bps), 11/4/21 $ 99,621 -------------- Total Real Estate $ 99,621 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 35 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- RETAILING -- 0.2% Automotive Retail -- 0.1% 49,625 CWGS Group LLC, Term Loan, 4.238% (LIBOR + 300-375 bps), 11/8/23 $ 50,131 ----------------------------------------------------------------------------------------------------- Specialty Stores -- 0.1% 50,000 Staples, Inc., Closing Date Term Loan, 5.31% (LIBOR + 400 bps), 9/12/24 $ 47,290 -------------- Total Retailing $ 97,421 ----------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 0.2% Internet Software & Services -- 0.0%+ 24,875 Rackspace Hosting, Inc., First Lien 2017 Refinancing Term B Loan, 4.311% (LIBOR + 300 bps), 11/3/23 $ 24,873 ----------------------------------------------------------------------------------------------------- IT Consulting & Other Services -- 0.1% 24,911 Go Daddy Operating Co., LLC (GD Finance Co., Inc.), Initial Term Loan, 3.742% (LIBOR + 250 bps), 2/15/24 $ 25,049 ----------------------------------------------------------------------------------------------------- Systems Software -- 0.1% 6,000 MA FinanceCo., LLC (aka Micro Focus International Plc), Tranche B-3 Term Loan, 3.989% (LIBOR + 275 bps), 6/21/24 $ 6,012 44,000 Seattle Spinco, Inc. (aka Micro Focus International Plc), Initial Term Loan, 3.988% (LIBOR + 275 bps), 6/21/24 44,091 -------------- $ 50,103 -------------- Total Software & Services $ 100,025 ----------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICE -- 0.3% Integrated Telecommunication Services -- 0.2% 100,000 CenturyLink, Inc., Initial Term B Loan, 2.75% (Ticking Fee + 275 bps), 1/31/25 $ 98,802 ----------------------------------------------------------------------------------------------------- Wireless Telecommunication Services -- 0.1% 49,750 Sprint Communications, Inc., Initial Term Loan, 3.75% (LIBOR + 250 bps), 2/2/24 $ 49,954 -------------- Total Telecommunication Service $ 148,756 ----------------------------------------------------------------------------------------------------- TOTAL SENIOR SECURED FLOATING RATE LOAN INTERESTS (Cost $1,518,496) $ 1,515,800 ----------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS IN UNAFFILIATED ISSUERS -- 96.9% (Cost $45,499,717) $ 46,437,077 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 36 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Net Change in Net Realized Unrealized Gain Appreciation Shares Income (Loss) (Depreciation) Value ----------------------------------------------------------------------------------------------------- AFFILIATED ISSUER -- 1.5% CLOSED-END FUND -- 1.5% of Net Assets INSURANCE -- 1.5% Property & Casualty Insurance -- 1.5% 72,732 Pioneer ILS Interval Fund(l) 46,809 (338) (80,092) $ 699,686 -------------- Total Insurance $ 699,686 ----------------------------------------------------------------------------------------------------- TOTAL CLOSED-END FUND (Cost $758,052) $ 699,686 ----------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS IN AFFILIATED ISSUER -- 1.5% (Cost -- $758,052) $ 699,686 ----------------------------------------------------------------------------------------------------- OTHER ASSETS AND LIABILITIES -- 1.6% $ 784,038 ----------------------------------------------------------------------------------------------------- NET ASSETS -- 100.0% $ 47,920,801 ===================================================================================================== BPS Basis Point. LIBOR London Interbank Offered Rate. REIT Real Estate Investment Trust. REMICS Real Estate Mortgage Investment Conduits. FREMF Freddie Mac Multifamily Fixed-Rate Mortgage Loans. (TBA) "To Be Announced" Securities. (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 October 31, 2017, the value of these securities amounted to $11,172,861, or 23.3% of total net assets. + Amount rounds to less than 0.1%. * Senior secured 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, (ii) the prime rate offered by one or more major United States banks, (iii) the rate of a certificate of deposit or (iv) other base lending rates used by commercial lenders. The interest rate shown is the rate accruing at October 31, 2017. + Securities that used significant unobservable inputs to determine their value. (a) Debt obligation initially issued at one coupon which converts to a higher coupon at a specific date. The rate shown is the rate at October 31, 2017. (b) Floating rate note. The Coupon rate, reference index and spread shown at October 31, 2017. (c) Security is perpetual in nature and has no stated maturity date. The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 37 Schedule of Investments | 10/31/17 (continued) (d) The interest rate is subject to change periodically. The interest rate, reference index and spread shown at October 31, 2017. (e) Security represents the interest-only portion payments on a pool of underlying mortgages or mortgage-backed securities. (f) Security issued with a zero coupon. Income is recognized through accretion of discount. (g) Structured reinsurance investment. At October 31, 2017, the value of these securities amounted to $103,022, or 0.2% of total net assets. See Notes to Financial Statements -- Note 1I. (h) Rate to be determined. (i) Consists of Revenue Bonds unless otherwise indicated. (j) Represents a General Obligation Bond. (k) This term loan will settle after October 31, 2017, at which time the interest rate will be determined. (l) Affiliated fund managed by Amundi Pioneer Asset Management, Inc., formerly Pioneer Investment Management, Inc. (the "Adviser"). The accompanying notes are an integral part of these financial statements. 38 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 SWAP CONTRACTS CENTRALLY CLEARED DEFAULT SWAP CONTRACT - SELL PROTECTION ---------------------------------------------------------------------------------------------------------------- Obligation Annual Notional Reference/ Pay/ Fixed Expiration Premiums Unrealized Market Amount ($)(1) Index Receive(2) Rate Date Paid Appreciation Value ---------------------------------------------------------------------------------------------------------------- 336,253 Markit CDX North Pay 5.00% 12/20/19 $18,246 $5,411 $23,657 America High Yield Index Series 23 ---------------------------------------------------------------------------------------------------------------- CREDIT DEFAULT SWAP CONTRACT - SELL PROTECTION OVER THE COUNTER (OTC) ---------------------------------------------------------------------------------------------------------------------------- Obligation Annual Notional Reference/ Pay/ Fixed Expiration Premiums Unrealized Market Amount ($)(1) Counterparty Index Receive(2) Rate Date (Received) Appreciation Value ---------------------------------------------------------------------------------------------------------------------------- 50,000 Morgan Stanley Diamond Pay 1.00% 12/20/19 $(1,873) $2,605 $ 732 Capital Offshore Services LLC Drilling, Inc. ---------------------------------------------------------------------------------------------------------------------------- TOTAL SWAP CONTRACTS $16,373 $8,016 $ 24,389 ============================================================================================================================ (1) The notional amount is the maximum amount that a seller of credit protection would be obligated to pay upon occurrence of a credit event. (2) Pays Quarterly FUTURES CONTRACTS FIXED INCOME INDEX FUTURES CONTRACTS ---------------------------------------------------------------------------------------------------------------------------- Number of Net Unrealized Contracts Expiration Notional Market Appreciation Long Description Date Amount Value (Depreciation) ---------------------------------------------------------------------------------------------------------------------------- 2 Euro-Bund 12/07/2017 $ 378,369 $ 379,208 $ 839 5 Euro BUXL 12/07/2017 968,698 967,649 (1,049) 30 Year Bond 2 U.S. 2 Year 12/29/2017 432,500 430,719 (1,781) Note (CBT) 10 U.S. Ultra 12/19/2017 1,662,890 1,647,813 (15,077) Bond (CBT) ---------------------------------------------------------------------------------------------------------------------------- $ 3,442,457 $ 3,425,389 $ (17,068) ============================================================================================================================ ---------------------------------------------------------------------------------------------------------------------------- Number of Net Unrealized Contracts Expiration Notional Market Appreciation (Short) Description Date Amount Value (Depreciation) ---------------------------------------------------------------------------------------------------------------------------- 17 Euro-BOBL 12/07/2017 $ 2,608,120 $ 2,609,903 $ (1,783) 22 U.S. 5 Year 12/29/2017 2,603,237 2,578,125 25,112 Note (CBT) 43 U.S. 10 Year 12/19/2017 5,444,165 5,372,312 71,853 Note (CBT) 2 U.S. 10 Year Ultra 12/19/2017 271,995 267,844 4,151 ---------------------------------------------------------------------------------------------------------------------------- $ 10,927,517 $10,828,184 $ 99,333 ---------------------------------------------------------------------------------------------------------------------------- TOTAL FUTURES CONTRACTS $ 7,485,060 $ 7,402,795 $ 82,265 ============================================================================================================================ The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 39 Schedule of Investments | 10/31/17 (continued) FORWARD FOREIGN CURRENCY CONTRACTS -------------------------------------------------------------------------------------------------------------- Net Unrealized Currency Currency Settlement Appreciation Purchased In Exchange for Sold Deliver Counterparty Date (Depreciation) -------------------------------------------------------------------------------------------------------------- USD 346,369 INR 22,302,702 Bank of America NA 11/09/17 $ 2,245 USD 475,172 NZD 677,035 Bank of America NA 11/24/17 12,148 IDR 1,481,876,069 USD 110,107 Bank of America NA 11/09/17 (905) CZK 12,685,636 EUR 492,447 Citibank NA 11/20/17 2,051 JPY 272,076,654 NZD 3,390,000 Citibank NA 11/17/17 75,623 EUR 755,582 USD 890,883 Citibank NA 11/21/17 (9,718) EUR 1,334,197 USD 1,570,586 Citibank NA 11/21/17 (14,635) NOK 3,000,000 USD 377,134 Citibank NA 11/20/17 (9,856) USD 262,388 ZAR 3,572,651 Citibank NA 11/13/17 10,314 CHF 525,000 EUR 455,974 Goldman Sachs 11/20/17 (5,051) International JPY 290,296,853 KRW 2,963,945,790 Goldman Sachs 11/10/17 (96,513) International BRL 1,580,501 USD 477,926 Goldman Sachs 1/31/18 (549) International PHP 12,715,000 USD 251,384 Goldman Sachs 11/03/17 (4,964) International USD 1,710,882 AUD 2,187,278 JP Morgan Chase 11/06/17 36,586 Bank NA USD 249,045 PHP 12,715,000 JP Morgan Chase 11/03/17 2,626 Bank NA IDR 6,382,915,845 THB 15,839,000 JP Morgan Chase 11/27/17 (7,118) Bank NA EUR 1,400,000 USD 1,692,031 JP Morgan Chase 12/11/17 (57,363) Bank NA USD 1,205,090 CAD 1,527,315 State Street Bank 11/10/17 20,538 & Trust Co. GBP 175,000 EUR 196,139 State Street Bank 11/20/17 3,847 & Trust Co. SEK 8,644,563 EUR 898,723 State Street Bank 11/13/17 (13,946) & Trust Co. EUR 100,268 GBP 89,565 State Street Bank 11/20/17 (2,104) & Trust Co. USD 236,435 GBP 179,138 State Street Bank 11/21/17 (1,644) & Trust Co. USD 582,819 HUF 152,026,473 State Street Bank 1/25/18 11,518 & Trust Co. USD 156,582 NZD 218,968 State Street Bank 11/06/17 6,777 & Trust Co. USD 194,272 NZD 270,521 State Street Bank 11/17/17 9,237 & Trust Co. EUR 207,000 USD 240,358 State Street Bank 11/30/17 1,170 & Trust Co. GBP 425,000 USD 560,693 State Street Bank 11/21/17 4,143 & Trust Co. SEK 10,429,816 USD 1,247,280 State Street Bank 11/30/17 1,109 & Trust Co. ZAR 3,575,155 USD 251,792 State Street Bank 11/13/17 459 & Trust Co. -------------------------------------------------------------------------------------------------------------- TOTAL FORWARD FOREIGN CURRENCY CONTRACTS $(23,975) ============================================================================================================== The accompanying notes are an integral part of these financial statements. 40 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Principal amounts are denominated in U.S. dollars unless otherwise noted. ARS Argentine Peso AUD Australian Dollar BRL Brazilian Real CAD Canadian Dollar CHF Swiss Franc CZK Czech Koruna EGP Egyptian Pound EUR Euro GBP Great British Pound HUF Hungarian Forint IDR Indonesian Rupiah INR Indian Rupee JPY Japanese Yen KRW South Korean Won MXN Mexican Peso NOK Norwegian Krone NZD New Zealand Dollar PHP Philippine Peso SEK Swedish Krona THB Thai Baht UYU Uruguayan Peso ZAR South African Rand At October 31, 2017, the net unrealized appreciation on investments based on cost for federal tax purposes of $46,346,307 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $ 2,247,195 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (1,374,060) ----------- Net unrealized appreciation $ 873,135 =========== Purchases and sales of securities (excluding temporary cash investments) for the year ended October 31, 2017 were as follows: -------------------------------------------------------------------------------- Purchases Sales -------------------------------------------------------------------------------- Long-Term U.S. Government $15,664,288 $11,093,098 Other Long-Term Securities $35,311,090 $18,893,503 The Fund is permitted to engage in purchase and sale transactions (cross trades) with certain funds and accounts for which the Adviser serves as the investment adviser, as set forth in Rule 17a-7 under the Investment Company Act of 1940, pursuant to procedures adopted by the Board of Trustees. Under these procedures, cross trades are effected at current market prices. During the year ended October 31, 2017, the Fund engaged in purchases and sales pursuant to these procedures amounting to $0 and $51,082, respectively, which resulted in a net realized gain of $3,645. Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels 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 risks, 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. The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 41 Schedule of Investments | 10/31/17 (continued) The following is a summary of the inputs used as of October 31, 2017, in valuing the Fund's investments. ------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total ------------------------------------------------------------------------------------- Convertible Corporate Bond $ -- $ 29,779 $ -- $ 29,779 Preferred Stock 6,066 -- -- 6,066 Convertible Preferred Stocks 246,364 -- -- 246,364 Asset Backed Securities -- 451,143 -- 451,143 Collateralized Mortgage Obligations -- 2,254,586 -- 2,254,586 Corporate Bonds Insurance Reinsurance -- -- 103,022 103,022 All Other Corporate Bonds -- 15,377,843 -- 15,377,843 U.S. Government and Agency Obligations -- 8,396,159 -- 8,396,159 Foreign Government Bonds -- 17,593,678 -- 17,593,678 Municipal Bonds -- 462,637 -- 462,637 Senior Secured Floating Rate Loan Interests -- 1,515,800 -- 1,515,800 Closed-End Fund 699,686 -- -- 699,686 ------------------------------------------------------------------------------------ Total Investments in Securities $952,116 $46,081,625 $103,022 $47,136,763 ==================================================================================== -------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------------------- Other Financial Instruments Net unrealized appreciation on futures contracts $ 82,265 $ -- $ -- $ 82,265 Net unrealized depreciation on forward foreign currency contracts -- (23,975) -- (23,975) Swap contracts, at value -- $ 24,389 -- $ 24,389 -------------------------------------------------------------------------------------------- Total Other Financial Instruments $ 82,265 $ 414 $ -- $ 82,679 ============================================================================================ The following is a reconciliation of assets valued using significant unobservable inputs (Level 3): -------------------------------------------------------------------------------- Corporate Bonds -------------------------------------------------------------------------------- Balance as of 10/31/16 $ 126,790 Realized gain (loss)(1) 2,747 Change In unrealized appreciation (depreciation)(2) (23,409) Accrued discounts/premiums (79) Purchases 110,000 Sales (113,027) Transfers in to Level 3* -- Transfers out of Level 3* -- -------------------------------------------------------------------------------- Balance as of 10/31/17 $ 103,022 ================================================================================ (1) Realized gain (loss) on these securities is included in net realized gain (loss) on investments in the Statement of Operations. (2) Unrealized appreciation (depreciation) on these securities is included in change in unrealized appreciation (depreciation) on investments in the Statement of Operations. * Transfers are calculated on the beginning of period values. During the year ended October 31, 2017, there were no transfers between Levels 1, 2 and 3. Net change in unrealized depreciation of Level 3 investments still held and considered Level 3 at October 31, 2017: $(17,253) -------- The accompanying notes are an integral part of these financial statements. 42 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Statement of Assets and Liabilities | 10/31/17 ASSETS: Investment in unaffiliated issuers, at value (cost $45,499,717) $46,437,077 Investment in affiliated issuers, at value (cost $758,052) 699,686 Cash 26,478 Foreign currencies, at value (cost $445,430) 436,742 Swap contracts, at value (net premiums paid $16,373) 24,389 Variation margin for centrally cleared swap contracts 185 Variation margin for futures contracts 12,225 Swaps collateral 25,084 Futures collateral 161,550 Net unrealized appreciation on futures contracts 82,265 Receivables -- Investment securities sold 296,815 Fund shares sold 27,041 Interest 403,540 Due from the Adviser 29,458 Other assets 27,975 -------------------------------------------------------------------------------- Total assets $48,690,510 ================================================================================ LIABILITIES: Payables -- Investment securities purchased $ 367,562 Fund shares repurchased 67,902 Distributions 71,961 Professional fees 46,626 Transfer Agent fees 49,063 Trustees' fees 650 Due to broker for futures 82,371 Due to broker for swaps 23,936 Net unrealized depreciation on forward foreign currency contracts 23,975 Due to affiliates 6,460 Accrued expenses 29,203 -------------------------------------------------------------------------------- Total liabilities $ 769,709 ================================================================================ NET ASSETS: Paid-in capital $47,126,509 Distributions in excess of net investment income (61,861) Accumulated net realized gain on investments (82,265) Net unrealized appreciation on investments 938,418 -------------------------------------------------------------------------------- Net assets $47,920,801 ================================================================================ NET ASSET VALUE PER SHARE: No par value (unlimited number of shares authorized) Class A (based on $23,251,698/2,173,349 shares) $ 10.70 Class C (based on $10,024,476/934,101 shares) $ 10.73 Class Y (based on $14,644,627/1,356,169 shares) $ 10.80 MAXIMUM OFFERING PRICE: Class A ($10.70 (divided by) 95.5%) $ 11.20 ================================================================================ The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 43 Statement of Operations For the Year Ended 10/31/17 INVESTMENT INCOME: Interest from unaffiliated issuers $1,662,231 Dividends from unaffiliated issuers 11,680 Dividends from affiliated issuers 46,809 ----------------------------------------------------------------------------------------------- Total investment income $1,720,720 ----------------------------------------------------------------------------------------------- EXPENSES: Management fees $ 210,356 Administrative expense 33,678 Transfer agent fees Class A 151,896 Class C 3,627 Class Y 2,175 Distribution fees Class A 53,317 Class C 85,090 Shareholder communications expense 6,016 Custodian fees 63,402 Registration fees 52,588 Professional fees 56,361 Printing expense 36,274 Pricing expense 38,371 Trustees' fees 7,175 Miscellaneous 18,311 ----------------------------------------------------------------------------------------------- Total expenses $ 818,637 Less fees waived and expenses reimbursed by the Adviser (338,112) ----------------------------------------------------------------------------------------------- Net expenses $ 480,525 ----------------------------------------------------------------------------------------------- Net investment income $1,240,195 ----------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS: Net realized gain (loss) on: Investments in unaffiliated issuers $ (498,259) Investments in affiliated issuers (338) Futures contracts 46,453 Swap contracts 11,816 Forward foreign currency contracts 239,485 Other assets and liabilities denominated in foreign currencies 33,414 $ (167,429) ----------------------------------------------------------------------------------------------- Change in net unrealized appreciation (depreciation) on: Investments in unaffiliated issuers $1,153,278 Investments in affiliated issuers (80,092) Futures contracts 54,777 Swap contracts 4,146 Forward foreign currency contracts (115,907) Other assets and liabilities denominated in foreign currencies (2,807) $1,013,395 ----------------------------------------------------------------------------------------------- Net realized and unrealized gain on investments $ 845,966 ----------------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $2,086,161 =============================================================================================== The accompanying notes are an integral part of these financial statements. 44 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Statements of Changes in Net Assets ---------------------------------------------------------------------------------------- Year Ended Year Ended 10/31/17 10/31/16* ---------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $ 1,240,195 $ 847,139 Net realized (loss) on investments (167,429) (526,527) Change in net unrealized appreciation on investments 1,013,395 1,196,933 ---------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 2,086,161 $ 1,517,545 ======================================================================================== DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.19 and $0.28 per share, respectively) $ (379,152) (353,498) Class C ($0.10 and $0.19 per share, respectively) (77,730) (80,543) Class Y ($0.22 and $0.31 per share, respectively) (311,287) (343,125) Tax return of capital: Class A ($0.04 and $0.08 per share, respectively) (83,787) (104,457) Class C ($0.04 and $0.08 per share, respectively) (34,110) (34,504) Class Y ($0.04 and $0.08 per share, respectively) (58,205) (88,241) Net realized gain: Class A ($0.06 and $0.00 per share, respectively) (124,161) -- Class C ($0.06 and $0.00 per share, respectively) (52,182) -- Class Y ($0.06 and $0.00 per share, respectively) (82,869) -- ---------------------------------------------------------------------------------------- Total distributions to shareowners $ (1,203,483) $ (1,004,368) ======================================================================================== FROM TRUST SHARE TRANSACTIONS: Net proceeds from sales of shares $ 32,624,032 $ 4,445,955 Reinvestment of distributions 425,141 501,412 Cost of shares repurchased (14,727,405) (5,772,331) ---------------------------------------------------------------------------------------- Net increase (decrease) in net assets resulting from Fund share transactions $ 18,321,768 $ (824,964) ---------------------------------------------------------------------------------------- Net increase (decrease) in net assets $ 19,204,446 $ (311,787) NET ASSETS: Beginning of year $ 28,716,355 $ 29,028,142 ---------------------------------------------------------------------------------------- End of year $ 47,920,801 $ 28,716,355 ---------------------------------------------------------------------------------------- Distributions in excess of net investment income $ (61,861) $ (136,437) ======================================================================================== * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 45 Statements of Changes in Net Assets (continued) ------------------------------------------------------------------------------------- Year Ended Year Ended Year Ended Year Ended 10/31/17 10/31/17 10/31/16* 10/31/16* Shares Amount Shares Amount ------------------------------------------------------------------------------------- Class A Shares sold 1,332,849 $13,903,813 252,692 $ 2,632,483 Reinvestment of distributions 30,403 321,073 38,692 401,821 Less shares repurchased (471,394) (4,975,818) (234,361) (2,430,066) ------------------------------------------------------------------------------------- Net increase 891,858 $ 9,249,068 57,023 $ 604,238 ===================================================================================== Class C Shares sold 621,101 $ 6,507,819 112,725 $ 1,164,736 Reinvestment of distributions 5,130 54,428 6,441 67,019 Less shares repurchased (103,349) (1,099,330) (102,171) (1,056,421) ------------------------------------------------------------------------------------- Net increase 522,882 $ 5,462,917 16,995 $ 175,334 ===================================================================================== Class Y Shares sold 1,159,480 $12,212,400 62,209 $ 648,736 Reinvestment of distributions 4,636 49,640 3,104 32,572 Less shares repurchased (815,102) (8,652,257) (218,162) (2,285,844) ------------------------------------------------------------------------------------- Net increase (decrease) 349,014 $ 3,609,783 (152,849) $ (1,604,536) ===================================================================================== * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. The accompanying notes are an integral part of these financial statements. 46 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Financial Highlights ----------------------------------------------------------------------------------------------------------------------- Year Year Year Year Year Ended Ended Ended Ended Ended 10/31/17 10/31/16* 10/31/15* 10/31/14* 10/31/13 ----------------------------------------------------------------------------------------------------------------------- Class A Net asset value, beginning of period $ 10.60 $ 10.40 $ 10.91 $ 10.98 $ 11.49 ----------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.30(a) $ 0.31(a) $ 0.31(a) $ 0.38 $ 0.30 Net realized and unrealized gain (loss) on investments 0.09 0.25 (0.41) (0.04) (0.35) ----------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.39 $ 0.56 $ (0.10) $ 0.34 $ (0.05) ----------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income $ (0.19) $ (0.28) $ (0.31) $ (0.35) $ (0.29) Net realized gain (0.06) -- (0.10) (0.06) (0.17) Tax return of capital (0.04) (0.08) -- -- -- ----------------------------------------------------------------------------------------------------------------------- Total distributions $ (0.29) $ (0.36) $ (0.41) $ (0.41) $ (0.46) ----------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ 0.10 $ 0.20 $ (0.51) $ (0.07) $ (0.51) ----------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 10.70 $ 10.60 $ 10.40 $ 10.91 $ 10.98 ======================================================================================================================= Total return(b) 3.75% 5.59% (1.00)% 3.16% (0.45)% Ratio of net expenses to average net assets (c) 1.00% 1.00% 1.00% 1.01% 1.00% Ratio of net investment income (loss) to average net assets 2.83% 2.99% 2.87% 3.57% 3.36% Portfolio turnover rate 70% 37% 34% 51% 33% Net assets, end of period (in thousands) $23,252 $13,579 $12,737 $11,601 $ 6,888 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets (c) 2.13% 2.67% 2.67% 2.52% 2.05% Net investment income (loss) to average net assets 1.70% 1.32% 1.20% 2.06% 2.31% ======================================================================================================================= * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. (a) The per share data presented above is based on the average shares outstanding for the period presented. (b) 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. (c) Includes interest expense of 0.00%, 0.00%, 0.00%, 0.00% and 0.01%, respectively. The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 47 Financial Highlights (continued) ----------------------------------------------------------------------------------------------------------------------- Year Year Year Year Year Ended Ended Ended Ended Ended 10/31/17 10/31/16* 10/31/15* 10/31/14* 10/31/13 ----------------------------------------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 10.63 $ 10.43 $ 10.94 $ 11.01 $ 11.51 ----------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.21(a) $ 0.22(a) $ 0.21(a) $ 0.29 $ 0.20 Net realized and unrealized gain (loss) on investments 0.09 0.25 (0.41) (0.05) (0.34) ----------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.30 $ 0.47 $ (0.20) $ 0.24 $ (0.14) ----------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income $ (0.10) $ (0.19) $ (0.21) $ (0.25) $ (0.19) Net realized gain (0.06) -- (0.10) (0.06) (0.17) Tax return of capital (0.04) (0.08) -- -- -- ----------------------------------------------------------------------------------------------------------------------- Total distributions $ (0.20) $ (0.27) $ (0.31) $ (0.31) $ (0.36) ----------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ 0.10 $ 0.20 $ (0.51) $ (0.07) $ (0.50) ----------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 10.73 $ 10.63 $ 10.43 $ 10.94 $ 11.01 ======================================================================================================================= Total return (b) 2.88% 4.67% (1.87)% 2.24% (1.24)% Ratio of net expenses to average net assets (c) 1.81% 1.90% 1.90% 1.91% 1.90% Ratio of net investment income (loss) to average net assets 2.00% 2.10% 1.96% 2.67% 2.46% Portfolio turnover rate 70% 37% 34% 51% 33% Net assets, end of period (in thousands) $10,024 $ 4,370 $ 4,113 $ 4,156 $ 3,847 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets (c) 2.21% 2.53% 2.56% 2.71% 2.75% Net investment income (loss) to average net assets 1.60% 1.46% 1.30% 1.87% 1.61% ======================================================================================================================= * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. (a) The per share data presented above is based on the average shares outstanding for the period presented. (b) 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. (c) Includes interest expense of 0.00%, 0.00%, 0.00%, 0.00% and 0.01%, respectively. The accompanying notes are an integral part of these financial statements. 48 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------------------------- Year Year Year Year Year Ended Ended Ended Ended Ended 10/31/17 10/31/16* 10/31/15* 10/31/14* 10/31/13 ----------------------------------------------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 10.69 $ 10.50 $ 11.00 $ 11.07 $ 11.59 ----------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.33(a) $ 0.34(a) $ 0.33(a) $ 0.42 $ 0.33 Net realized and unrealized gain (loss) on investments 0.10 0.24 (0.39) (0.05) (0.36) ----------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.43 $ 0.58 $ (0.06) $ 0.37 $ (0.03) ----------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income $ (0.22) $ (0.31) $ (0.34) $ (0.38) $ (0.32) Net realized gain (0.06) -- (0.10) (0.06) (0.17) Tax return of capital (0.04) (0.08) -- -- -- ----------------------------------------------------------------------------------------------------------------------- Total distributions $ (0.32) $ (0.39) $ (0.44) $ (0.44) $ (0.49) ----------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ 0.11 $ 0.19 $ (0.50) $ (0.07) $ (0.52) ----------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 10.80 $ 10.69 $ 10.50 $ 11.00 $ 11.07 ======================================================================================================================= Total return (b) 4.10% 5.73% (0.62)% 3.42% (0.25)% Ratio of net expenses to average net assets (c) 0.75% 0.75% 0.75% 0.76% 0.75% Ratio of net investment income (loss) to average net assets 3.10% 3.24% 3.12% 3.81% 3.58% Portfolio turnover rate 70% 37% 34% 51% 33% Net assets, end of period (in thousands) $14,645 $10,767 $12,178 $12,525 $17,438 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Total expenses to average net assets (c) 1.17% 1.41% 1.39% 1.50% 1.57% Net investment income (loss) to average net assets 2.68% 2.59% 2.48% 3.07% 2.76% ======================================================================================================================= * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. (a) The per share data presented above is based on the average shares outstanding for the period presented. (b) 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. (c) Includes interest expense of 0.00%, 0.00%, 0.00%, 0.00% and 0.01%, respectively. The accompanying notes are an integral part of these financial statements. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 49 Notes to Financial Statements | 10/31/17 1. Organization and Significant Accounting Policies Pioneer Global Multisector Income 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 a high level of current income. The Fund offers three classes of shares designated as Class A, Class C, and Class Y shares. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board of Trustees 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. On July 3, 2017, Amundi acquired Pioneer Investments, a group of asset management companies located throughout the world. Amundi, one of the world's largest asset managers, is headquartered in Paris, France. As a result of the transaction, Pioneer Investment Management, Inc., the Fund's investment adviser, became an indirect wholly owned subsidiary of Amundi and Amundi's wholly owned subsidiary, Amundi USA, Inc. Prior to July 3, 2017, Pioneer Investments was owned by Pioneer Global Asset Management S.p.A., a wholly owned subsidiary of UniCredit S.p.A. In connection with the transaction, the names of the Fund's investment adviser and principal underwriter changed. Effective July 3, 2017, the name of Pioneer Investment Management, Inc. changed to Amundi Pioneer Asset Management, Inc. (the "Adviser") and the name of Pioneer Funds Distributor, Inc. changed to Amundi Pioneer Distributor, Inc. (the "Distributor"). 50 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 In October 2016, the Securities and Exchange Commission (SEC) released its Final Rule on Investment Company Reporting Modernization. In addition to introducing two new regulatory reporting forms (Form N-PORT and Form N-CEN), the Final Rule amends Regulation S-X, which impacts financial statement presentation, particularly related to the presentation of derivative investments. The Fund's financial statements were prepared in compliance with the amendments to Regulation S-X. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles (U.S. GAAP) that require the management of the Fund to 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 Fund is an investment company and follows investment company accounting and reporting guidance under U.S. GAAP. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements: A. Security Valuation The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. Fixed-income securities are valued by using 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, or may use a pricing matrix or other fair value methods or techniques to provide an estimated value of the security or instrument. A pricing matrix is a means of valuing a debt security on the basis of current market prices for other debt securities, historical trading patterns in the market for fixed income securities and/or other factors. Non-U.S. debt securities that are listed on an exchange will be valued at the bid price obtained from an independent third party pricing service. When independent market quotations are considered to be unreliable, the value of that security may be determined using quotations from one or more broker-dealers. The value of foreign securities is translated into U.S. dollars based on foreign currency exchange rate quotations supplied by a third party pricing source. Trading in non-U.S. equity securities is substantially completed each day at various times prior to the close of the NYSE. The values of such securities Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 51 used in computing the net asset value of the Fund's shares are determined as of such times. The fund may use a fair value model developed by an independent pricing service to value non-U.S. equity securities. Loan interests 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 third party pricing service. If price information is not available from Loan Pricing Corporation, or if the price information is deemed to be unreliable, price information will be obtained from an alternative loan interest pricing service. If no reliable price quotes are available from either the primary or alternative pricing service, broker quotes will be solicited. Event-linked bonds or catastrophe bonds are valued at the bid price obtained from an independent third party pricing service. Other insurance linked securities (including sidecars, collateralized reinsurance and industry loss warranties) may be valued at the bid price obtained from an independent pricing service, or through a third party using a pricing matrix, insurance industry valuation models, or other fair value methods or techniques to provide an estimated value of the instrument. Equity securities that have traded on an exchange are valued by using 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 or, if both last bid and asked prices are not available, at the last quoted bid price. Last sale and bid and asked prices are provided by independent third party pricing services. In the case of equity securities not traded on an exchange, prices are typically determined by independent third party pricing services using a variety of techniques and methods. Swap contracts, including interest rate swaps, caps and floors (other than centrally cleared swap contracts) are valued at the dealer quotations obtained from reputable International Swap Dealers Association members. Centrally cleared swaps are valued at the daily settlement price provided by the central clearing counterparty. Futures contracts are generally valued at the closing settlement price established by the exchange on which they are traded. Forward foreign currency exchange contracts are valued daily using the foreign exchange rate or, for longer term forward contract positions, the spot currency rate and the forward points on a daily basis, in each case provided by a third party pricing service. Contracts whose forward settlement date falls between two quoted days are valued by interpolation. 52 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Securities or loan interests for which independent pricing services or broker dealers are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of the Adviser, pursuant to procedures adopted by the Fund's Board of Trustees. The Adviser's fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. The Adviser's fair valuation team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. At October 31, 2017, no securities were valued using fair value methods (other than securities valued using prices supplied by independent pricing services, broker-dealers or using a third party insurance industry pricing model). B. Investment Income and Transactions Dividend income is recorded on the ex-dividend date, except that certain dividends from foreign securities where the ex-dividend date may have passed are recorded as soon as the Fund becomes aware of the ex-dividend data in the exercise of reasonable diligence. Interest income, including interest on income-bearing cash accounts, is recorded on the accrual basis, net of unrecoverable foreign taxes withheld at the applicable country rates and net of income accrued on defaulted securities. Interest and dividend income payable by delivery of additional shares is reclassified as PIK (payment-in-kind) income upon receipt and is included in interest and dividend income, respectively. Principal amounts of mortgage-backed securities are adjusted for monthly paydowns. Premiums and discounts related to certain mortgage-backed securities are amortized or accreted in proportion to the monthly paydowns. All discounts/premiums on purchase prices of debt securities are accreted/amortized for financial reporting purposes over the life of the respective securities, and such accretion/amortization is included in interest income. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 53 Security transactions are recorded as of trade date. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. C. Foreign Currency Translation The books and records of the Fund are maintained in U.S. dollars. Amounts denominated in foreign currencies are translated into U.S. dollars using current exchange rates. Net realized gains and losses on foreign currency transactions, if any, represent, among other things, the net realized gains and losses on foreign currency contracts, disposition of foreign currencies and the difference between the amount of income accrued and the U.S. dollars actually received. Further, the effects of changes in foreign currency exchange rates on investments are not segregated in the statement of operations from the effects of changes in the market prices of those securities but are included with the net realized and unrealized gain or loss on investments. D. Forward Foreign Currency Contracts The Fund may enter into forward foreign currency contracts (contracts) for the purchase or sale of a specific foreign currency at a fixed price on a future date. All contracts are marked to market daily at the applicable exchange rates, and any resulting unrealized appreciation or depreciation is recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a contract is offset by entry into a closing transaction or extinguished by delivery of the currency. Risks may arise upon entering into these contracts from the potential inability of counterparties to meet the terms of the contract and from unanticipated movements in the value of foreign currencies relative to the U.S. dollar. At October 31, 2017, the Fund had entered into various forward foreign currency contracts that obligate the Fund to deliver or take delivery of currencies at specified future maturity dates. Alternatively, prior to the settlement date of a forward foreign currency contract, the Fund may close out such contract by entering into an offsetting contract. The average value of forward foreign currency contracts open during the year ended October 31, 2017 was $(4,409,568). Forward foreign currency contracts outstanding at October 31, 2017, are listed in the Schedule of Investments. 54 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 E. 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 net taxable income and net realized capital gains, if any, to its shareowners. Therefore, no provision for federal income taxes is required. As of October 31, 2017, the Fund did not accrue any interest or penalties with respect to uncertain tax positions, which, if applicable, would be recorded as an income tax expense in the Statement of Operations. Tax returns filed within the prior three years remain subject to examination by federal and state tax authorities. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. GAAP. Distributions in excess of net investment income or net realized gains are temporary over distributions 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. At October 31, 2017, the Fund reclassified $397,450 to increase distributions in excess of net investment income and $397,450 to increase accumulated net realized gain on investments to reflect permanent book/tax differences. These adjustments have no impact on net assets or the results of operations. During the year ended October 31, 2017, a capital loss carryforward of $25,586 was utilized to offset net realized gains by the Fund. The tax character of distributions paid during the years ended October 31, 2017 and October 31, 2016, were as follows: --------------------------------------------------------------------------- 2017 2016 --------------------------------------------------------------------------- Distributions paid from: Ordinary income $ 881,209 $ 777,166 Long-term capital gain 146,172 -- Return of capital 176,102 227,202 --------------------------------------------------------------------------- Total $1,203,483 $1,004,368 =========================================================================== Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 55 The following shows the components of distributable earnings on a federal income tax basis at October 31, 2017: --------------------------------------------------------------------------- 2017 --------------------------------------------------------------------------- Distributable earnings: Current year dividend payable $ (71,961) Unrealized appreciation 866,253 --------------------------------------------------------------------------- Total $ 794,292 =========================================================================== The difference between book-basis and tax-basis net unrealized appreciation is attributable to the adjustments related to sidecars, the mark-to-market of forward, swaps and futures contracts, and interest accruals on preferred stock. F. Fund Shares The Fund records sales and repurchases of its shares as of trade date. The Distributor, the principal underwriter for the Fund and a wholly-owned indirect subsidiary of UniCredit, earned $4,818 in underwriting commissions on the sale of Class A shares during the year ended October 31, 2017. G. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Distribution fees are calculated based on the average daily net asset value attributable to Class A and Class C shares of the Fund, respectively (see Note 4). Class Y shares do not pay distribution fees. All expenses and fees paid to the Fund's transfer agent, 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. H. Risks The value of securities held by the fund may go up or down, sometimes rapidly or unpredictably, due to general market conditions, such as real or perceived adverse economic, political or regulatory conditions, inflation, changes in interest rates, lack of liquidity in the bond markets or adverse 56 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 investor sentiment. In the past several years, financial markets have experienced increased volatility, depressed valuations, decreased liquidity and heightened uncertainty. These conditions may continue, recur, worsen or spread. 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. Interest rates in the U.S. recently have been historically low, so the Fund faces a heightened risk that interest rates may rise. A general rise in interest rates may cause investors to move out of fixed income securities on a large scale, which could adversely affect the price and liquidity of fixed income securities and could also result in increased redemptions from the Fund. 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. I. Insurance-Linked Securities (ILS) The Fund invests in event-linked bonds. Event-linked bonds are floating rate debt obligations for which the return of principal and the payment of interest are contingent on the non-occurrence of a pre-defined "trigger" event, such as a hurricane or an earthquake of a specific magnitude. The trigger event's magnitude may be based on losses to a company or industry, industry indexes or readings of scientific instruments, or may be based on specified actual losses. If a trigger event occurs, as defined within the terms of an event-linked bond, the Fund may lose a portion or all of its accrued interest and/or principal invested in such event-linked bond. The Fund is entitled to receive principal and interest payments so long as no trigger event occurs of the description and magnitude specified by the instrument. In addition to the specified trigger events, event-linked bonds may expose the Fund to other risks, including but not limited to issuer (credit) default, adverse regulatory or jurisdictional interpretations and adverse tax consequences. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 57 The Fund's investments in ILS may include special purpose vehicles ("SPVs") or similar instruments structured to comprise a portion of a reinsurer's catastrophe-oriented business, known as quota share instruments (sometimes referred to as reinsurance sidecars), or to provide reinsurance relating to specific risks to insurance or reinsurance companies through a collateralized instrument, known as collateralized reinsurance. Structured reinsurance investments also may include industry loss warranties ("ILWs"). A traditional ILW takes the form of a bilateral reinsurance contract, but there are also products that take the form of derivatives, collateralized structures, or exchange traded instruments. Structured reinsurance investments, including quota share instruments, collateralized reinsurance investments and ILWs, generally are subject to the same risks as event-linked bonds. In addition, where the instruments are based on the performance of underlying reinsurance contracts, the Fund has limited transparency into the individual underlying contracts and therefore must rely upon the risk assessment and sound underwriting practices of the issuer. Accordingly, it may be more difficult for the Adviser to fully evaluate the underlying risk profile of the Fund's structured reinsurance investments, and therefore the Fund's assets are placed at greater risk of loss than if the Adviser had more complete information. Structured reinsurance instruments generally will be considered illiquid securities by the Fund. These securities may be difficult to purchase, sell or unwind. Illiquid securities also may be difficult to value. If the Fund is forced to sell an illiquid asset, the Fund may be forced to sell at a loss. J. Futures Contracts The Fund may enter into futures transactions in order to attempt to hedge against changes in interest rates, securities prices and currency exchange rates or to seek to increase total return. Futures contracts are types of derivatives. All futures contracts entered into by the Fund are traded on a futures exchange. Upon entering into a futures contract, the Fund is required to deposit with a broker an amount of cash or securities equal to the minimum "initial margin" requirements of the associated futures exchange. The amount of cash deposited with the broker as collateral at October 31, 2017, is recorded as "Futures collateral" in the Statement of Assets and Liabilities. Subsequent payments for futures contracts (variation margin) are paid or received by the Fund, depending on the daily fluctuation in the value of the contracts, and are recorded by the Fund as unrealized appreciation or depreciation. When the contract is closed, the Fund realizes a gain or loss equal to the difference between the opening and closing value of the contract as well as any fluctuation in foreign currency exchange rates where applicable. Futures contracts are subject to market risk, interest rate risk and currency exchange rate risk. Changes in value of the contracts may not directly 58 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 correlate to the changes in value of the underlying securities. 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. The average value of contracts open during the year ended October 31, 2017, was $(4,598,307). At October 31, 2017, open futures contracts are listed in the Schedule of Investments. K. Repurchase Agreements Repurchase agreements are arrangements under which the Fund purchases securities from a broker-dealer or a bank, called the counterparty, upon the agreement of the counterparty to repurchase the securities from the Fund at a later date, and at a specific price, which is typically higher than the purchase price paid by the Fund. The securities purchased serve as the Fund's collateral for the obligation of the counterparty to repurchase the securities. The value of the 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 Adviser is responsible for determining that the value of the collateral remains at least equal to the repurchase price. In the event of a default by the counterparty, the Fund is entitled to sell the securities, but the Fund may not be able to sell them for the price at which they were purchased, thus causing a loss to the Fund. Additionally, if the counterparty becomes insolvent, there is some risk that the Fund will not have a right to the securities, or the immediate right to sell the securities. As of and for the year ended October 31, 2017, the Fund had no open repurchase agreements. L. Credit Default Swap Contracts 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 sell or buy credit default swap contracts to seek to increase the Fund's income, or to attempt to hedge the risk of default on portfolio securities. A credit default swap index is used to hedge risk or take a position on a basket of credit entities or indices. As a seller of protection, the Fund would be required to pay the notional (or other agreed-upon) value of the referenced debt obligation to the counterparty in the event of a default by a U.S. or foreign corporate issuer of a debt obligation, which would likely result in a loss to the Fund. In return, the Fund would receive from the counterparty a periodic stream of payments during the term of the contract, provided that no event of default occurred. The maximum exposure of loss to the seller would be the notional value of the credit default swaps outstanding. If no default occurs, Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 59 the Fund would keep the stream of payments and would have no payment obligation. The Fund may also buy credit default swap contracts in order to hedge against the risk of default of debt securities, in which case the Fund would function as the counterparty referenced above. When the Fund enters into a credit default swap contract, the protection buyer makes an upfront or periodic payment to the protection seller in exchange for the right to receive a contingent payment. An upfront payment made by the Fund, as the protection buyer, is recorded as a component of unrealized appreciation/depreciation on open swap contracts in the Statement of Assets and Liabilities. Periodic payments received or paid by the Fund are recorded as realized gains or losses in the Statement of Operations. Credit default swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded within "Swap contracts, at value" line item in the Statement of Assets and Liabilities. Payments received or made as a result of a credit event or upon termination of the contract are recognized, net of the appropriate amount of the upfront payment, as realized gains or losses in the Statement of Operations. Credit default swap contracts involving the sale of protection may involve greater risks than if the Fund had invested in the referenced debt instrument directly. Credit default swap contracts are subject to general market risk, liquidity risk, counterparty risk and credit risk. If the Fund is a protection buyer and no credit event occurs, it will lose its investment. If the Fund is a protection seller and a credit event occurs, the value of the referenced debt instrument received by the Fund, together with the periodic payments received, may be less than the amount the Fund pays to the protection buyer, resulting in a loss to the Fund. Certain swap contracts that are cleared through a central clearinghouse are referred to as centrally cleared swaps. All payments made or received by the Fund are pursuant to a centrally cleared swap contract with the central clearing party rather than the original counterparty. Upon entering into a centrally cleared swap contract, the Fund is required to make an initial margin deposit, either in cash or in securities. The daily change in value on open centrally cleared contracts is recorded as variation margin on centrally cleared swaps in the Statement of Assets and Liabilities. The amount of cash deposited with a broker as collateral at October 31, 2017 is recorded as "Swaps Collateral" in the Statement of Assets and Liabilities. Open credit default swap contracts at October 31, 2017, are listed in the Schedule of Investments. The average value of swap contracts open during the year ended October 31, 2017 was $23,890. 60 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 2. Management Agreement The Adviser 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. The Adviser has contractually agreed to limit ordinary operating expenses (ordinary operating expenses means all fund expenses other than extraordinary expenses, such as litigation, taxes, brokerage commissions and acquired fund fees and 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 year ended October 31, 2017, are reflected on the Statement of Operations. These expense limitations are in effect through March 1, 2018. There can be no assurance that the Adviser 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 from affiliates" reflected on the Statement of Assets and Liabilities is $3,422 in management fees, administrative costs and certain other reimbursements due to the Adviser at October 31, 2017. 3. Transfer Agent Boston Financial Data Services serves as the transfer agent to the Fund at negotiated rates. Transfer agent fees and payables shown on the Statement of Operations and the Statement of Assets and Liabilities, respectively, include sub-transfer agent expenses incurred through the Fund's omnibus relationship contracts. In addition, the Fund reimbursed the transfer agent for out-of-pocket expenses incurred by the transfer agent related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the year ended October 31, 2017, such out-of-pocket expenses by class of shares were as follows: -------------------------------------------------------------------------------- Shareholder Communications: -------------------------------------------------------------------------------- Class A $3,144 Class C 2,194 Class Y 678 -------------------------------------------------------------------------------- Total $6,016 ================================================================================ Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 61 4. Distribution Plan The Fund has adopted a distribution plan (the 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 the Distributor 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 the Distributor 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 $3,038 in distribution fees payable to the Distributor at October 31, 2017. In addition, redemptions of each class of shares (except Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class Y shares. Proceeds from the CDSCs are paid to the Distributor. For the year ended October 31, 2017, CDSCs in the amount of $412 were paid to the Distributor. 5. Assets and Liabilities Offsetting The Fund has entered into an International Swaps and Derivatives Association, Inc. Master Agreement ("ISDA Master Agreement") or similar agreement with substantially all its derivative counterparties. An ISDA Master Agreement is a bilateral agreement between the Fund and a counterparty that governs the trading of certain OTC derivatives and typically contains, among other things, close-out and set-off provisions which apply upon the occurrence of an event of default and/or a termination event as defined under the relevant ISDA Master Agreement. The ISDA Master Agreement may also give a party the right to terminate all transactions traded under such agreement if, among other things, there is deterioration in the credit quality of the other party. Upon an event of default or a termination of the ISDA Master Agreement, the non-defaulting party has the right to close out all transactions under such agreement and to net amounts owed under each transaction to determine one net amount payable by one party to the other. The right to close out and net 62 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 payments across all transactions under the ISDA Master Agreement could result in a reduction of the Fund's credit risk to its counterparty equal to any amounts payable by the Fund under the applicable transactions, if any. However, the Fund's right to setoff may be restricted or prohibited by the bankruptcy or insolvency laws of the particular jurisdiction to which each specific ISDA of each counterparty is subject. The collateral requirements for derivatives transactions under an ISDA Master Agreement are governed by a credit support annex to the ISDA Master Agreement. Collateral requirements are generally determined at the close of business each day and are typically based on changes in market values for each transaction under an ISDA Master Agreement and netted into one amount for such agreement. Generally, the amount of collateral due from or to a counterparty is subject to threshold (a "minimum transfer amount") before a transfer is required, which may vary by counterparty. Collateral pledged for the benefit of the Fund and/or counterparty is held in segregated accounts by the Fund's custodian and cannot be sold, re-pledged, assigned or otherwise used while pledged. Cash that has been segregated to cover the Fund's collateral obligations, if any, will be reported separately in the Statement of Assets and Liabilities as "Swaps collateral." Securities pledged by the Fund as collateral, if any, are identified as such in the Schedule of Investments. Financial instruments subject to an enforceable master netting agreement such as an ISDA Master Agreement have not been offset on the Statement of Assets and Liabilities. The following charts show gross assets and liabilities of the Fund as of October 31, 2017. ------------------------------------------------------------------------------------------ Derivative Assets Subject to Derivatives Non-Cash Cash Net Amount Master Netting Available Collateral Collateral of Derivative Counterparty Agreement for Offset Received (a) Received (a) Assets (b) ------------------------------------------------------------------------------------------ Bank of America $ 14,393 $ (905) $ -- $ -- $ 13,488 Citibank NA 87,988 (34,209) -- -- 53,779 JPMorgan Chase Bank NA 39,212 (39,212) -- -- -- Morgan Stanley & Co. 732 -- -- -- 732 State Street Bank & Trust Co. 58,798 (17,694) -- -- 41,104 ------------------------------------------------------------------------------------------ Total $201,123 $ (92,020) $ -- $ -- $109,103 ========================================================================================== Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 63 ------------------------------------------------------------------------------------------ Derivative Liabilities Subject to Derivatives Non-Cash Cash Net Amount Master Netting Available Collateral Collateral of Derivative Counterparty Agreement for Offset Pledged (a) Pledged (a) Liabilities (c) ------------------------------------------------------------------------------------------ Bank of America $ 905 $ (905) $ -- $ -- $ -- Citibank NA 34,209 (34,209) -- -- -- Goldman Sachs International 107,077 -- -- -- 107,077 JPMorgan Chase Bank NA 64,481 (39,212) -- -- 25,269 State Street Bank & Trust Co. 17,694 (17,694) -- -- -- ------------------------------------------------------------------------------------------ Total $224,366 $(92,020) $ -- $ -- $132,346 ========================================================================================== (a) The amount presented here may be less than the total amount of collateral received/pledged as the net amount of derivative assets and liabilities cannot be less than $0. (b) Represents the net amount due from the counterparty in the event of default. (c) Represents the net amount payable to the counterparty in the event of default. 6. Additional Disclosures about Derivative Instruments and Hedging Activities The Fund's use of derivatives subjects it to the following risks: Interest rate risk relates to the fluctuations in the value of interest-bearing securities due to changes in the prevailing levels of market interest rates. Credit risk relates to the ability of the issuer of a financial instrument to make further principal or interest payments on an obligation or commitment that it has to the Fund. Foreign exchange rate risk relates to fluctuations in the value of an asset or liability due to changes in currency exchange rates. Equity risk relates to the fluctuations in the value of financial instruments as a result of changes in market prices (other than those arising from interest rate risk or foreign exchange risk), whether caused by factors specific to an individual investment, its issuer, or all factors affecting all instruments traded in a market or market segment. Commodity risk relates to the risk that the value of a commodity or commodity index will fluctuate based on increases or decreases in the commodities market and factors specific to a particular industry or commodity. 64 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 The fair value of open derivative instruments (not considered to be hedging instruments for accounting disclosure purposes) by risk exposure at October 31, 2017 was as follows: ---------------------------------------------------------------------------------- Foreign Statement of Assets Interest Credit Exchange Equity Commodity and Liabilities Rate Risk Risk Rate Risk Risk Risk ---------------------------------------------------------------------------------- Assets Net unrealized appreciation on futures contracts $82,265 $ -- $ -- $ -- $ -- Swap contracts, at value -- 24,389 -- -- -- ---------------------------------------------------------------------------------- Total Value $82,265 $24,389 $ -- $ -- $ -- ================================================================================== ---------------------------------------------------------------------------------- Foreign Statement of Assets Interest Credit Exchange Equity Commodity and Liabilities Rate Risk Risk Rate Risk Risk Risk ---------------------------------------------------------------------------------- Liabilities Net unrealized depreciation on forward foreign currency contracts $ -- $ -- $23,975 $ -- $ -- ---------------------------------------------------------------------------------- Total Value $ -- $ -- $23,975 $ -- $ -- ================================================================================== The effect of derivative instruments (not considered to be hedging instruments for accounting disclosure purposes) on the Statement of Operations by risk exposure at October 31, 2017 was as follows: ---------------------------------------------------------------------------------- Foreign Statement of Interest Credit Exchange Equity Commodity Operations Rate Risk Risk Rate Risk Risk Risk ---------------------------------------------------------------------------------- Net realized gain (loss) on: Futures contracts $46,453 $ -- $ -- $ -- $ -- Swap contracts -- 11,816 -- -- -- Forward foreign currency contracts -- -- 239,485 -- -- ---------------------------------------------------------------------------------- Total Value $46,453 $11,816 $ 239,485 $ -- $ -- ================================================================================== Change in net unrealized appreciation (depreciation) on: Futures contracts $54,777 $ -- $ -- $ -- $ -- Swap contracts -- 4,146 -- -- -- Forward foreign currency contracts -- -- (115,907) -- -- ---------------------------------------------------------------------------------- Total Value $54,777 $ 4,146 $(115,907) $ -- $ -- ================================================================================== 7. 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 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 65 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 which the Fund participated until February 9, 2016 was in the amount of $240 million. The credit facility in which the Fund participated until February 7, 2017, was in the amount of $220 million. Effective February 8, 2017, the Fund participates in a facility that is in the amount of $13.9 million. Under such facility, depending on the type of loan, interest on borrowings is payable at the London Interbank Offered Rate (LIBOR) plus 0.85% 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 or (c) 2% plus the overnight Eurodollar rate on the borrowing date. The Funds pay an annual commitment fee to participate in a credit facility. The commitment fee is allocated among participating Funds based on an allocation schedule set forth in the credit agreement. For the year ended October 31, 2017, the Fund had no borrowings under the credit facility. 8. Unfunded Loan Commitments The Fund may enter into unfunded loan commitments. Unfunded loan commitments may be partially or wholly unfunded. During the contractual period, the Fund is obliged to provide funding to the borrower upon demand. A fee is earned by the Fund on the unfunded commitment and is recorded as interest income in the Statement of Operations. As of October 31, 2017, the Fund had the following unfunded loan commitments commitments outstanding: -------------------------------------------------------------------------------- Unrealized Appreciation/ Loan Principal Cost Value Depreciation -------------------------------------------------------------------------------- Beacon Roofing Supply, Inc., Bridge Loan $ 60,000 $ 60,000 $ 60,000 $ -- Centene Corp., Bridge Loan 85,000 85,000 85,000 -- -------------------------------------------------------------------------------- Total Value $145,000 $145,000 $145,000 $ -- ================================================================================ 66 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Report of Independent Registered Public Accounting Firm To the Board of Trustees of Pioneer Series Trust VII and the Shareowners of Pioneer Global Multisector Income Fund: -------------------------------------------------------------------------------- We have audited the accompanying statement of assets and liabilities, including the schedule of investments, of Pioneer Global Multisector Income Fund (the "Fund"), one of the funds constituting the Pioneer Series Trust VII (the "Trust"), as of October 31, 2017, and the related statements of operations, changes in net assets and the financial highlights for the year then ended and the financial highlights for the year ended October 31, 2013. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. The statement of changes in net assets for the year ended October 31, 2016 and the financial highlights for periods ended October 31, 2014, October 31, 2015 and October 31, 2016 were audited by another independent registered public accounting firm whose report, dated December 23, 2016, expressed an unqualified opinion on the statement of changes in net assets and those financial highlights. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform audits of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of October 31, 2017, by correspondence with the custodian, brokers and others or by other appropriate auditing procedures where replies from brokers and others were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Pioneer Global Multisector Income Fund at October 31, 2017, the results of its operations, the changes in its net assets, and the financial highlights for the year then ended and the financial highlights for the year ended October 31, 2013, in conformity with U.S. generally accepted accounting principles. /s/ Ernst & Young LLP Boston, Massachusetts December 26, 2017 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 67 ADDITIONAL INFORMATION The percentages of the Fund's ordinary income distributions that are exempt from nonresident alien (NRA) tax withholding resulting from qualified interest income was 51.83%. Change in Independent Registered Public Accounting Firm Prior to July 3, 2017 Pioneer Investment Management, Inc. (the Adviser), the Funds' investment adviser, was an indirect, wholly owned subsidiary of UniCredit S.p.A. (UniCredit). On that date, UniCredit completed the sale of its Pioneer Investments business, which includes the Adviser, to Amundi (the Transaction). As a result of the Transaction, the Adviser became an indirect, wholly-owned subsidiary of Amundi. Amundi is controlled by Credit Agricole S.A. Amundi is headquartered in Paris, France, and, as of September 30, 2016, had more than $1.1 trillion in assets under management worldwide. Deloitte & Touche LLP (D&T), the Fund's previous independent registered public accounting firm, informed the Audit Committee and the Board that it would no longer be independent with respect to the Funds upon the completion of the Transaction as a result of certain services being provided to Amundi and Credit Agricole, and, accordingly, that it intended to resign as the Funds' independent registered public accounting firm upon the completion of the Transaction. D&T's resignation was effective on July 3, 2017, when the Transaction was completed. During the periods as to which D&T has served as the Funds' independent registered public accounting firm, including the Funds' two most recent fiscal years, D&T's reports on the Funds' financial statements have not contained an adverse opinion or disclaimer of opinion and have not been qualified or modified as to uncertainty, audit scope or accounting principles. Further, there have been no disagreements with D&T on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which, if not resolved to the satisfaction of D&T, would have caused D&T to make reference to the subject matter of the disagreement in connection with its report on the financial statements. In addition, there have been no reportable events of the kind described in Item 304(a)(1)(v) of Regulation S-K under the Securities Exchange Act of 1934. Effective immediately following the completion of the Transaction on July 3, 2017, the Board, acting upon the recommendation of the Audit Committee, engaged a new independent registered public accounting firm, Ernst & Young LLP (EY), for the Fund's fiscal year ended October 31, 2017. 68 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Prior to its engagement, EY had advised the Funds' Audit Committee that EY had identified the following matters, in each case relating to services rendered by other member firms of Ernst & Young Global Limited, all of which are located outside the United States, to UniCredit and certain of its subsidiaries during the period commencing July 1, 2016, that it determined to be inconsistent with the auditor independence rules set forth by the Securities and Exchange Commission (SEC): (a) project management support services to UniCredit in the Czech Republic, Germany, Italy, Serbia and Slovenia in relation to twenty-two projects, that were determined to be inconsistent with Rule 2-01(c)(4)(vi) of Regulation S-X (management functions); (b) two engagements for UniCredit in Italy where fees were contingent/success based and that were determined to be inconsistent with Rule 2-01(c)(5) of Regulation S-X (contingent fees); (c) four engagements where legal and expert services were provided to UniCredit in the Czech Republic and Germany, and twenty engagements where the legal advisory services were provided to UniCredit in Austria, Czech Republic, Italy and Poland, that were determined to be inconsistent with Rule 2-01(c)(4)(ix) and (x) of Regulation S-X (legal and expert services); and (d) two engagements for UniCredit in Italy involving assistance in the sale of certain assets, that were determined to be inconsistent with Rule 2-01(c)(4)(viii) of Regulation S-X (broker-dealer, investment advisor or investment banking services). None of the foregoing services involved the Funds, any of the other funds in the Pioneer Family of Funds or any other Pioneer entity sold by UniCredit in the Transaction. EY advised the Audit Committee that it had considered the matters described above and had concluded that such matters would not impair EY's ability to exercise objective and impartial judgment in connection with the audits of the financial statements of the Funds under the SEC and Public Company Accounting Oversight Board independence rules, and that a reasonable investor with knowledge of all relevant facts and circumstances would reach the same conclusion. Management and the Audit Committee considered these matters and discussed the matters with EY and, based upon EY's description of the matters and statements made by EY, Management and the Audit Committee believe that EY will be capable of exercising objective and impartial judgment in connection with the audits of the financial statements of the Funds, and Management further believes that a reasonable investor with knowledge of all relevant facts and circumstances would reach the same conclusion. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 69 Results of Shareholder Meeting At a special meeting held on June 13, 2017, shareholders of the Fund were asked to consider the proposals described below. A report of the total votes cast by the Fund's shareholders (or, with respect to Proposal 2, by shareholders of Pioneer Series Trust VII, as noted below) follows: -------------------------------------------------------------------------------- For Against Abstain Broker Non-Votes -------------------------------------------------------------------------------- Proposal 1 - To approve 3,417,810.633 6,929.560 7,810.058 357,253.200 a New Management Agreement with the Adviser -------------------------------------------------------------------------------- For Against -------------------------------------------------------------------------------- Proposal 2 - To elect Trustees* -------------------------------------------------------------------------------- David R. Bock 46,356,571.403 1,941,738.750 -------------------------------------------------------------------------------- Benjamin M. Friedman 46,347,916.283 1,950,393.870 -------------------------------------------------------------------------------- Margaret B.W. Graham 46,178,367.969 2,119,942.184 -------------------------------------------------------------------------------- Lisa M. Jones 46,169,721.329 2,128,588.824 -------------------------------------------------------------------------------- Lorraine H. Monchak 46,201,867.234 2,096,442.919 -------------------------------------------------------------------------------- Thomas J. Perna 46,378,862.453 1,919,447.700 -------------------------------------------------------------------------------- Marguerite A. Piret 46,203,924.961 2,094,385.192 -------------------------------------------------------------------------------- Fred J. Ricciardi 46,378,634.184 1,919,675.969 -------------------------------------------------------------------------------- Kenneth J. Taubes 46,386,579.585 1,911,730.568 -------------------------------------------------------------------------------- * Proposal 2 was voted on and approved by all series of Pioneer Series Trust VII. Results reported above reflect the combined votes of all series of the Trust. 70 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Trustees, Officers and Service Providers Investment Adviser Amundi Pioneer Asset Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Independent Registered Public Accounting Firm Ernst & Young LLP Principal Underwriter Amundi Pioneer Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Boston Financial Data 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 July 31 is publicly available to shareowners at www.amundipioneer.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. Trustees and Officers The Fund's Trustees and officers are listed below, together with their principal occupations and other directorships they have held during at least the past five years. Trustees who are interested persons of the Fund within the meaning of the 1940 Act are referred to as Interested Trustees. Trustees who are not interested persons of the Fund are referred to as Independent Trustees. Each of the Trustees serves as a Trustee of each of the 46 U.S. registered investment portfolios for which Amundi Pioneer serves as investment adviser (the "Pioneer Funds"). The address for all Trustees and all officers of the Fund is 60 State Street, Boston, Massachusetts 02109. The Statement of Additional Information of the Fund includes additional information about the Trustees and is available, without charge, upon request, by calling 1-800-225-6292. Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 71 Independent Trustees ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Thomas J. Perna (67) Trustee since 2007. Private investor (2004 - 2008 and 2013 - Director, Broadridge Financial Chairman of the Board Serves until a present); Chairman (2008 - 2013) and Chief Solutions, Inc. (investor and Trustee successor trustee is Executive Officer (2008 - 2012), Quadriserv, communications and securities elected or earlier Inc. (technology products for securities lending processing provider for retirement or industry); and Senior Executive Vice President, financial services industry) removal. The Bank of New York (financial and securities (2009 - present); Director, services) (1986 - 2004) Quadriserv, Inc. (2005 - 2013); and Commissioner, New Jersey State Civil Service Commission (2011 - 2015) ------------------------------------------------------------------------------------------------------------------------------------ David R. Bock (73) Trustee since 2007. Managing Partner, Federal City Capital Advisors Director of New York Mortgage Trustee Serves until a (corporate advisory services company) (1997 - Trust (publicly-traded mortgage successor trustee is 2004 and 2008 - present); Interim Chief REIT) (2004 - 2009, 2012 - elected or earlier Executive Officer, Oxford Analytica, Inc. present); Director of The Swiss retirement or (privately held research and consulting company) Helvetia Fund, Inc. (closed-end removal. (2010); Executive Vice President and Chief fund) (2010 - present); Financial Officer, I-trax, Inc. (publicly traded Director of Oxford Analytica, health care services company) (2004 - 2007); and Inc. (2008 - present); and Executive Vice President and Chief Financial Director of Enterprise Officer, Pedestal Inc. (internet-based mortgage Community Investment, Inc. trading company) (2000 - 2002); Private (privately-held affordable Consultant (1995 - 1997); Managing Director, housing finance company) (1985 - Lehman Brothers (1992 - 1995); Executive, The 2010) World Bank (1979 - 1992) ------------------------------------------------------------------------------------------------------------------------------------ Benjamin M. Friedman (73) Trustee since 2008. William Joseph Maier Professor of Political Trustee, Mellon Institutional Trustee Serves until a Economy, Harvard University (1972 - present) Funds Investment Trust and successor trustee is Mellon Institutional Funds elected or earlier Master Portfolio (oversaw 17 retirement or portfolios in fund complex) removal. (1989 - 2008) ------------------------------------------------------------------------------------------------------------------------------------ 72 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Margaret B.W. Graham (70) Trustee since 2007. Founding Director, Vice-President and Corporate None Trustee Serves until a Secretary, The Winthrop Group, Inc. (consulting successor trustee is firm) (1982 - present); Desautels Faculty of elected or earlier Management, McGill University (1999 - present); retirement or and Manager of Research Operations and removal. Organizational Learning, Xerox PARC, Xerox's advance research center (1990-1994) ------------------------------------------------------------------------------------------------------------------------------------ Lorraine H. Monchak (61) Trustee since 2017. Chief Investment Officer, 1199 SEIU Funds None Trustee (Advisory Trustee (healthcare workers union pension funds) (2001 - from 2014 - 2017). present); Vice President - International Serves until a Investments Group, American International Group, successor trustee is Inc. (insurance company) (1993 - 2001); Vice elected or earlier President, Corporate Finance and Treasury Group, retirement or Citibank, N.A. (1980 - 1986 and 1990 - 1993); removal. Vice President - Asset/Liability Management Group, Federal Farm Funding Corporation (government-sponsored issuer of debt securities) (1988 - 1990); Mortgage Strategies Group, Shearson Lehman Hutton, Inc. (investment bank) (1987 - 1988); Mortgage Strategies Group, Drexel Burnham Lambert, Ltd. (investment bank) (1986 - 1987) ------------------------------------------------------------------------------------------------------------------------------------ Marguerite A. Piret (69) Trustee since 2007. President and Chief Executive Officer, Newbury Director of New America High Trustee Serves until a Piret Company (investment banking firm) (1981 - Income Fund, Inc. (closed-end successor trustee is present) investment company) (2004 - elected or earlier present); and Member, Board of retirement or Governors, Investment Company removal. Institute (2000 - 2006) ------------------------------------------------------------------------------------------------------------------------------------ Fred J. Ricciardi (70) Trustee since 2014. Consultant (investment company services) (2012 - None Trustee Serves until a present); Executive Vice President, BNY Mellon successor trustee is (financial and investment company services) (1969 elected or earlier - 2012); Director, BNY International Financing retirement or Corp. (financial services) (2002 - 2012); removal. Director, Mellon Overseas Investment Corp. (financial services) (2009 - 2012) ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 73 Interested Trustees ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Lisa M. Jones (55)* Trustee since 2017. Chair, Director, CEO and President of Amundi None Trustee, President and Serves until a Pioneer Asset Management USA, Inc. (since Chief Executive Officer successor trustee is September 2014); Chair, Director and CEO of elected or earlier Amundi Pioneer Asset Management, Inc. (since retirement or removal September 2014); Chair, Director and CEO of Amundi Pioneer Distributor, Inc. (since September 2014); Chair, Director, CEO and President of Amundi Pioneer Institutional Asset Management, Inc. (since September 2014); Managing Director, Morgan Stanley Investment Management (2010 - 2013); Director of Institutional Business, CEO of International, Eaton Vance Management (2005 - 2010) ------------------------------------------------------------------------------------------------------------------------------------ Kenneth J. Taubes (59)* Trustee since 2014. Director and Executive Vice President (since None Trustee Serves until a 2008) and Chief Investment Officer, U.S. (since successor trustee is 2010) of Amundi Pioneer Asset Management USA, elected or earlier Inc.; Executive Vice President and Chief retirement or removal Investment Officer, U.S. of Amundi Pioneer (since 2008); Executive Vice President of Amundi Pioneer Institutional Asset Management, Inc. (since 2009); Portfolio Manager of Amundi Pioneer (since 1999) ------------------------------------------------------------------------------------------------------------------------------------ * Ms. Jones and Mr. Taubes are Interested Trustees because they are officers or directors of the Fund's investment adviser and certain of its affiliates. 74 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 Fund Officers ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Christopher J. Kelley (52) Since 2007. Serves at Vice President and Associate General Counsel of None Secretary and Chief Legal the discretion of the Amundi Pioneer since January 2008; Secretary and Officer Board Chief Legal Officer of all of the Pioneer Funds since June 2010; Assistant Secretary of all of the Pioneer Funds from September 2003 to May 2010; Vice President and Senior Counsel of Amundi Pioneer from July 2002 to December 2007 ------------------------------------------------------------------------------------------------------------------------------------ Carol B. Hannigan (56) Since 2010. Serves at Fund Governance Director of Amundi Pioneer since None Assistant Secretary the discretion of the December 2006 and Assistant Secretary of all the Board Pioneer Funds since June 2010; Manager - Fund Governance of Amundi Pioneer from December 2003 to November 2006; and Senior Paralegal of Amundi Pioneer from January 2000 to November 2003 ------------------------------------------------------------------------------------------------------------------------------------ Thomas Reyes (54) Since 2010. Serves at Senior Counsel of Amundi Pioneer since May 2013 None Assistant Secretary the discretion of the and Assistant Secretary of all the Pioneer Funds Board since June 2010; Counsel of Amundi Pioneer from June 2007 to May 2013 ------------------------------------------------------------------------------------------------------------------------------------ Mark E. Bradley (57) Since 2008. Serves at Vice President - Fund Treasury of Amundi None Treasurer and Chief the discretion of the Pioneer; Treasurer of all of the Pioneer Funds Financial Board since March 2008; Deputy Treasurer of Amundi and Accounting Officer Pioneer from March 2004 to February 2008; and Assistant Treasurer of all of the Pioneer Funds from March 2004 to February 2008 ------------------------------------------------------------------------------------------------------------------------------------ Luis I. Presutti (52) Since 2007. Serves at Director - Fund Treasury of Amundi Pioneer; and None Assistant Treasurer the discretion of the Assistant Treasurer of all of the Pioneer Funds Board ------------------------------------------------------------------------------------------------------------------------------------ Gary Sullivan (59) Since 2007. Serves at Fund Accounting Manager - Fund Treasury of None Assistant Treasurer the discretion of the Amundi Pioneer; and Assistant Treasurer of all Board of the Pioneer Funds ------------------------------------------------------------------------------------------------------------------------------------ David F. Johnson (37) Since 2009. Serves at Fund Administration Manager - Fund Treasury of None Assistant Treasurer the discretion of the Amundi Pioneer since November 2008; Assistant Board Treasurer of all of the Pioneer Funds since January 2009; Client Service Manager - Institutional Investor Services at State Street Bank from March 2003 to March 2007 ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 75 Fund Officers (continued) ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Jean M. Bradley (65) Since 2010. Serves at Chief Compliance Officer of Amundi Pioneer and None Chief Compliance Officer the discretion of the of all the Pioneer Funds since March 2010; Chief Board Compliance Officer of Amundi Pioneer Institutional Asset Management, Inc. since January 2012; Chief Compliance Officer of Vanderbilt Capital Advisors, LLC since July 2012: Director of Adviser and Portfolio Compliance at Amundi Pioneer since October 2005; Senior Compliance Officer for Columbia Management Advisers, Inc. from October 2003 to October 2005 ------------------------------------------------------------------------------------------------------------------------------------ Kelly O'Donnell (46) Since 2007. Serves at Director - Transfer Agency Compliance of Amundi None Anti-Money Laundering the discretion of the Pioneer and Anti-Money Laundering Officer of all Officer Board the Pioneer Funds since 2006 ------------------------------------------------------------------------------------------------------------------------------------ 76 Pioneer Global Multisector Income Fund | Annual Report | 10/31/17 How to Contact Amundi 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: -------------------------------------------------------------------------------- Amundi Pioneer P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address us.askamundipioneer@amundipioneer.com (for general questions about Amundi Pioneer only) Visit our web site: www.amundipioneer.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] Amundi Pioneer ============== ASSET MANAGEMENT Amundi Pioneer Asset Management, Inc. 60 State Street Boston, MA 02109 www.amundipioneer.com Securities offered through Amundi Pioneer Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2017 Amundi Pioneer Asset Management 22520-09-1217 Pioneer Global High Yield Fund -------------------------------------------------------------------------------- Annual Report | October 31, 2017 -------------------------------------------------------------------------------- Ticker Symbols: Class A PGHYX Class C PGYCX Class Y GHYYX [LOGO] Amundi Pioneer ============== ASSET MANAGEMENT visit us: www.amundipioneer.com Table of Contents President's Letter 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 46 Notes to Financial Statements 53 Report of Independent Registered Public Accounting Firm 69 Additional Information 70 Trustees, Officers and Service Providers 73 Pioneer Global High Yield Fund | Annual Report | 10/31/17 1 President's Letter Robust, synchronized global economic growth and rising corporate profits have continued to drive strong performance in both the credit and equity markets for most of 2017. U.S. stocks, as measured by the Standard & Poor's 500 Index, returned 14.23% through the end of the third quarter. Fixed-income markets, while not generating the same dazzling returns as equities, held their own, led by high-yield securities, which produced a return of 7.05% in the U.S., as measured by the Bank of America Merrill Lynch U.S. High Yield Index. Meanwhile, the Bloomberg Barclays U.S. Aggregate Bond Index returned 3.14% over the first three quarters of the calendar year. Continued strong employment numbers and higher consumer confidence, together with solid global economic growth and a depreciating U.S. dollar contributed to better-than-expected U.S. gross domestic product (GDP) growth of more than 3% in both the second and third quarters. Outside the U.S., economic growth in the second quarter also surprised to the upside across the Euro zone, China, and Japan. Meanwhile, despite higher oil and commodities prices, inflation continued to be moderate, both in the U.S. and globally, enabling major non-U.S. central banks to maintain their easy monetary policies. As expected, however, the U.S. Federal Reserve System (the Fed) recently announced that it would commence tapering its balance sheet this October. The Fed also appears primed to raise interest rates one more time before the end of this year, which would be the fourth rate increase since December of 2016. As we move into the final months of 2017, we believe the U.S. economy will experience modest growth in the short term, depending on the mix of economic policies enacted as the country moves away from monetary stimulus (driven by the Fed) and toward fiscal stimulus (potentially including tax reform) as well as lighter regulatory burdens. Meanwhile, corporate earnings remain solid and we think they will improve even further, despite the possibility of some pressure from wage increases. In addition, it is our view that the economy will continue to grow and that we may begin to see a modest upturn in inflation. In that scenario, we anticipate that the Fed will continue to raise interest rates. While economic and market conditions appear solid, there are always risks to consider that could dampen the outlook. Geopolitical concerns, such as increased tensions with North Korea, and continued political gridlock in Washington are just some of the risks that could lead to increased market volatility. 2 Pioneer Global High Yield Fund | Annual Report | 10/31/17 It is for those reasons that we at Amundi Pioneer continue to believe that investors can benefit from the experience and tenure of our investment teams who make active and informed decisions across our funds. As always, and particularly during times of market uncertainty, we encourage you to work with your financial advisor to develop an overall investment plan that addresses both your short- and long-term goals, and to implement such a plan in a disciplined manner. We greatly appreciate the trust you have placed in us and look forward to continuing to serve you in the future. Sincerely, /s/ Lisa M. Jones Lisa M. Jones Head of the Americas, President and CEO of U.S. Amundi Pioneer Asset Management USA, Inc. October 31, 2017 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. Past performance is no guarantee of future results. Pioneer Global High Yield Fund | Annual Report | 10/31/17 3 Portfolio Management Discussion | 10/31/17 High-yield corporate bonds and other credit-sensitive debt produced solid results during the 12-month period ended October 31, 2017, as investors remained optimistic about both the global and domestic economies. In the following interview, Andrew Feltus discusses the market environment and the performance of Pioneer Global High Yield Fund during the 12-month period. Mr. Feltus, Co-Director of High Yield, a senior vice president, and a portfolio manager at Amundi Pioneer Asset Management, Inc. ("Amundi Pioneer"), is lead manager of the Fund, which is co-managed by Tracy Wright, a senior vice president and a portfolio manager at Amundi Pioneer, and Kenneth J. Monaghan, Co-Director of High Yield of Amundi Pioneer and Managing Director of Amundi Smith Breeden. (Mr. Monaghan became a portfolio manager of the Fund effective October 1, 2017). Q How did the Fund perform during the 12-month period ended October 31, 2017? A Pioneer Global High Yield Fund's Class A shares returned 10.33% at net asset value during the 12-month period ended October 31, 2017, while the Fund's benchmarks, the Bloomberg Barclays Global High Yield Index (the Bloomberg Barclays Index) and the ICE Bank of America Merrill Lynch (BofA ML) U.S. High Yield Index, returned 10.04% and 9.14%, respectively. During the same period, the average return of the 665 mutual funds in Lipper's High Yield Funds category was 7.94%, and the average return of the 698 mutual funds in Morningstar's High Yield Bond Funds category was 7.93%. Q Could you please describe the market environment for global high-yield investors during the 12-month period ended October 31, 2017? A The period was characterized by generally uninterrupted optimism about the economy and the prospects for continued corporate earnings gains. The sustained rally in highly credit-sensitive debt actually began after the high-yield market bottomed in February 2016, seven months before the start of the period. In the subsequent rally, U.S. and international high-yield corporate bonds, emerging markets debt, and other asset classes sensitive to global economic cycles performed well. Although the market surge did experience brief pauses and even temporary reversals, most often related to political uncertainties in the United States or in Europe, the positive environment generally continued unabated as investors maintained an optimistic outlook for both the domestic and global economies. 4 Pioneer Global High Yield Fund | Annual Report | 10/31/17 In the United States, the economy expanded at a steady, if unspectacular, pace, although the annual rate of gross domestic product (GDP) growth did accelerate to better than 3% in both the second and third calendar quarters of 2017, while the nation's unemployment rate fell from 4.8% to 4.1% between October 2016 and October 2017. The election of Republican Donald Trump as U.S. president in November 2016 only briefly interrupted a rally in the credit market as investors ultimately came to interpret the results as a victory for pro-growth economic policies. In Europe, despite some evidence of increasing political nationalism and anti-European Union sentiment in advance of national elections in several countries, the eventual election results seemed to calm worries about anti-global trends. The European economy, meanwhile, continued to improve over the full 12-month period, while the euro, too, strengthened on currency markets. While European corporate high-yield bonds performed similarly to U.S. high-yield corporates during the period, emerging markets securities performed even better, helped significantly by rallies in commodity markets spurred by increased worldwide demand. U.S. monetary policy continued to tighten during the period, but the Federal Reserve (the Fed) acted cautiously, raising short-term interest rates three times over the 12 months, while carefully assessing economic trends. The rate increases were widely expected, and their gradual implementation showed no evidence of dampening the improvements in global economic growth. Late in the period, the Fed began reducing the rather large balance sheet it had accumulated through its multiple quantitative easing bond-buying programs from 2008 through 2014, but also at a gradual pace. As the period progressed, other central banks also began to consider moving away from their highly accommodative policies. Q What were the principal factors that influenced the Fund's benchmark- relative performance over the 12-month period ended October 31, 2017? A The main factor contributing to the Fund's benchmark-relative outperformance during the period was security selection across all markets and sectors. Other factors contributing to relative performance included our emphasis on holding U.S. high-yield corporates and emerging markets debt, both corporate and sovereign, in the portfolio, which helped significantly. The portfolio's short-duration position relative to the benchmark also supported results as the yields of U.S. Treasuries and other higher-quality debt moved higher over the 12 months, thus eroding the prices of high-quality, long-maturity debt. (Duration is a measure of the sensitivity of the price, or the value of principal, of a fixed-income investment to a change in interest rates, expressed as a number of years.) Pioneer Global High Yield Fund | Annual Report | 10/31/17 5 Individual portfolio holdings that performed notably well during the period included two securities exposed to the rising value of the fishing grounds in Peruvian waters: debt issued by China Fish Group and by Pesquera Exalmar. The latter was one of the Fund's larger benchmark-relative overweights. Scientific Games International, a company that produces equipment and services for gambling enterprises across the globe, was the most significant contributor to performance among the Fund's domestic high-yield holdings, while the most noteworthy European contributor was the debt of the Boing Group, a company operating car washes, principally in Europe. Holdings in the subordinated debt of several European banking corporations also performed quite well. On the negative side, during a period in which the euro strengthened against other currencies, we increased the Fund's euro exposure, but relatively lower exposure to the European currency versus the benchmark was a slight drag on performance. In general, the Fund's allocations to non-high-yield corporates also held back relative results, as groups such as bank loans and event-linked insurance industry securities, especially so-called "catastrophe bonds," lagged the performance of high-yield bonds. The Fund's investments in bonds issued by retailers also produced disappointing results. One negative performer from that group was the debt of national pet supply chain Pet Smart. The bonds of telecommunication services providers, especially landline-based companies such as Frontier and Windstream, also underperformed and detracted from the Fund's relative returns. At the end of the period, the Fund had significant exposure to corporate bonds, both U.S. and international, which together accounted for roughly 81% of the Fund's total investment portfolio. Foreign government bonds (7%) and senior secured floating-rate loans (3%) accounted for another 10% of the Fund's total investment portfolio as of October 31, 2017. Q Did the Fund have any investments in derivative securities during the 12-month period ended October 31, 2017? A Yes, we invested in some credit-default swaps to manage the portfolio's exposure to the high-yield corporate sector during periods of asset flows into or out of the Fund. The investments had no material influence on the Fund's results. 6 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Q Did the Fund's distributions to shareholders change during the 12-month period ended October 31, 2017? A The Fund's distributions did decline during the 12 months, as high-yield bonds outperformed other sectors on a total return basis and yield, or credit spreads, compressed. (Credit spreads, are commonly defined as the differences in yield between Treasuries and other types of fixed-income securities with similar maturities.) Essentially, as high-yield bond prices rose during the period, their yields declined. In addition, newer portfolio holdings usually paid lower yields than older debt that had been issued when market rates were higher. Q What is your investment outlook? A In an environment where corporations have the financial health to pay their bond obligations, we believe high-yield default rates should remain low. Nevertheless, we are somewhat concerned about the elevated pricing levels to which high-yield bonds have risen, which have resulted in tighter credit spreads. In effect, higher-yielding securities are priced at levels that imply no problems or concerns. Therefore, if the economy should falter or the rate of economic growth starts to slow, high-yield bond prices could be pressured. However, we do expect the economy to continue to perform well, leading to continued gains in corporate earnings, which would in turn support high-yield bond performance. We feel current economic fundamentals should continue to support higher-yielding, more cyclically sensitive debt. In recent months, however, we have sold some of the Fund's higher-yielding bonds, as we have attempted to reduce overall portfolio risk and invest more cautiously. We have, for example, reduced the portfolio's positions in the subordinated debt of European banking institutions. Overall, we continue to like the outlook for high-yield bonds, but we are more cautious because of their higher prices. Please refer to the Schedule of Investments on pages 16-45 for a full listing of Fund securities. All investments are subject to risk, including the possible loss of principal. In the past several years, financial markets have experienced increased volatility, depressed valuations, decreased liquidity and heightened uncertainty. These conditions may continue, recur, worsen or spread. Pioneer Global High Yield Fund | Annual Report | 10/31/17 7 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. Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates, and economic and political conditions. Prepayment risk is the chance that an issuer may exercise its right to repay its security, if falling interest rates prompt the issuer to do so. Forced to reinvest the unanticipated proceeds at lower interest rates, the Fund would experience a decline in income and lose the opportunity for additional price appreciation. The Fund may invest in mortgage-backed securities, which during times of fluctuating interest rates may increase or decrease more than other fixed-income securities. Mortgage-backed securities are also subject to pre-payments. The Fund may use derivatives, such as options, futures, inverse floating rate obligations, swaps, and others, which can be illiquid, may disproportionately increase losses, and have a potentially large impact on Fund performance. Derivatives may have a leveraging effect on the Fund. At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making it more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. These risks may increase share price volatility. Before investing, consider the product's investment objectives, risks, charges and expenses. Contact your advisor or Amundi Pioneer Asset Management, Inc. for a prospectus or summary prospectus containing this information. Read it carefully. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of opinion as of the date of this report. Past performance is no guarantee of future results. 8 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Portfolio Summary | 10/31/17 Portfolio Diversification* -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] U.S. Corporate Bonds 43.1% International Corporate Bonds 37.8% Foreign Government Bonds 6.9% Senior Secured Floating Rate Loan Interests 3.1% U.S. Government and Agency Obligations 2.7% Convertible Corporate Bonds 1.7% Temporary Cash Investments 1.3% Collateralized Mortgage Obligations 1.3% Convertible Preferred Stocks 0.8% International Common Stocks 0.6% U.S. Preferred Stocks 0.4% Asset Backed Securities 0.1% Rights/Warrants 0.0%+ + Amount rounds to less than 0.1%. * Includes investments in Insurance Linked Securities totaling 2.2% of total investment portfolio. Geographical Distribution -------------------------------------------------------------------------------- (As a percentage of long-term holdings based on country of domicile) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] United States 53.2% Other (individually less than 1%) 12.2% Netherlands 5.8% Luxembourg 5.5% United Kingdom 3.1% Argentina 3.1% Mexico 2.6% Ireland 2.3% Bermuda 2.2% Turkey 1.8% France 1.7% Canada 1.2% Italy 1.2% Cayman Islands 1.1% Egypt 1.0% Peru 1.0% India 1.0% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)** 1. Minerva Luxembourg SA, 7.75%, 1/31/23 1.13% -------------------------------------------------------------------------------- 2. U.S. Treasury Bill, 11/16/17 1.03 -------------------------------------------------------------------------------- 3. Petrobras Global Finance BV, 5.299%, 1/27/25 (144A) 0.95 -------------------------------------------------------------------------------- 4. Nationstar Mortgage LLC / Nationstar Capital Corp., 6.5%, 6/1/22 0.83 -------------------------------------------------------------------------------- 5. MTN Mauritius Investment, Ltd., 5.373%, 2/13/22 (144A) 0.82 -------------------------------------------------------------------------------- 6. Petrobras Global Finance BV, 5.375%, 1/27/21 0.81 -------------------------------------------------------------------------------- 7. Pesquera Exalmar SAA, 7.375%, 1/31/20 (144A) 0.81 -------------------------------------------------------------------------------- 8. Sprint Corp., 7.25%, 9/15/21 0.76 -------------------------------------------------------------------------------- 9. TA MFG., Ltd., 3.625%, 4/15/23 (144A) 0.72 -------------------------------------------------------------------------------- 10. Scientific Games International, Inc., 10.0%, 12/1/22 0.70 -------------------------------------------------------------------------------- ** 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 Global High Yield Fund | Annual Report | 10/31/17 9 Prices and Distributions | 10/31/17 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 10/31/17 10/31/16 -------------------------------------------------------------------------------- A $9.12 $8.71 -------------------------------------------------------------------------------- C $9.09 $8.69 -------------------------------------------------------------------------------- Y $8.95 $8.55 -------------------------------------------------------------------------------- Distributions per Share: 11/1/16-10/31/17 -------------------------------------------------------------------------------- Short-Term Long-Term Tax Return Class Dividends Capital Gains Capital Gains of Capital -------------------------------------------------------------------------------- A $0.4215 $-- $-- $0.0455 -------------------------------------------------------------------------------- C $0.3585 $-- $-- $0.0455 -------------------------------------------------------------------------------- Y $0.4378 $-- $-- $0.0455 -------------------------------------------------------------------------------- Index Definitions -------------------------------------------------------------------------------- The Bloomberg Barclays Global High Yield Index is an unmanaged index that provides a broad-based measure of the global high-yield fixed-income markets. The index represents the union of the Barclays U.S. High-Yield, Barclays Pan-European High-Yield, Barclays U.S. Emerging Markets High-Yield, and Barclays Pan-European Emerging Markets High-Yield Indices. The ICE BofA ML U.S. High Yield 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 11-13. 10 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Performance Update | 10/31/17 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class A shares of Pioneer Global High Yield Fund at public offering price during the periods shown, compared to that of the ICE Bank of America (BofA) Merrill Lynch (ML) U.S. High Yield Index and the Bloomberg Barclays Global High Yield Index. Average Annual Total Returns (As of October 31, 2017) -------------------------------------------------------------------------------- BBG ICE Barclays BofA Net Public Global ML U.S. Asset Offering High High Value Price Yield Yield Period (NAV) (POP) Index Index -------------------------------------------------------------------------------- 10 years 5.05% 4.57% 7.85% 7.69% 5 years 4.08 3.12 6.26 6.29 1 year 10.33 5.37 10.04 9.14 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2017) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.19% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Global Bloomberg Barclays ICE BofA ML U.S. High Yield Fund Global High Yield Index High Yield Index 10/07 $ 9,550 $10,000 $10,000 10/08 $ 6,546 $ 7,163 $ 7,348 10/09 $ 9,398 $11,117 $10,934 10/10 $11,386 $13,280 $13,039 10/11 $11,442 $13,744 $13,667 10/12 $12,803 $15,720 $15,468 10/13 $13,694 $17,205 $16,834 10/14 $14,127 $17,989 $17,818 10/15 $13,228 $17,619 $17,453 10/16 $14,172 $19,351 $19,227 10/17 $15,635 $21,294 $20,984 Call 1-800-225-6292 or visit www.amundipioneer.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. Please refer to the financial highlights for a more current expense ratio. Pioneer Global High Yield Fund | Annual Report | 10/31/17 11 Performance Update | 10/31/17 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Class C shares of Pioneer Global High Yield Fund during the periods shown, compared to that of the ICE Bank of America (BofA) Merrill Lynch (ML) U.S. High Yield Index and the Bloomberg Barclays Global High Yield Index. Average Annual Total Returns (As of October 31, 2017) -------------------------------------------------------------------------------- BBG ICE Barclays BofA Global ML U.S. High High If If Yield Yield Period Held Redeemed Index Index -------------------------------------------------------------------------------- 10 years 4.32% 4.32% 7.85% 7.69% 5 years 3.35 3.35 6.26 6.29 1 year 9.46 9.46 10.04 9.14 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2017) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.90% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer Global Bloomberg Barclays ICE BofA ML U.S. High Yield Fund Global High Yield Index High Yield Index 10/07 $10,000 $10,000 $10,000 10/08 $ 6,792 $ 7,163 $ 7,348 10/09 $ 9,682 $11,117 $10,934 10/10 $11,661 $13,280 $13,039 10/11 $11,646 $13,744 $13,667 10/12 $12,947 $15,720 $15,468 10/13 $13,753 $17,205 $16,834 10/14 $14,088 $17,989 $17,818 10/15 $13,108 $17,619 $17,453 10/16 $13,946 $19,351 $19,227 10/17 $15,265 $21,294 $20,984 Call 1-800-225-6292 or visit www.amundipioneer.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Please refer to the financial highlights for a more current expense ratio. 12 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Performance Update | 10/31/17 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Class Y shares of Pioneer Global High Yield Fund during the periods shown, compared to that of the ICE Bank of America (BofA) Merrill Lynch (ML) U.S. High Yield Index and the Bloomberg Barclays Global High Yield Index. Average Annual Total Returns (As of October 31, 2017) -------------------------------------------------------------------------------- BBG ICE Barclays BofA Net Global ML U.S. Asset High High Value Yield Yield Period (NAV) Index Index -------------------------------------------------------------------------------- 10 years 5.37% 7.85% 7.69% 5 years 4.34 6.26 6.29 1 year 10.60 10.04 9.14 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated March 1, 2017) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 0.90% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer Global Bloomberg Barclays ICE BofA ML U.S. High Yield Fund Global High Yield Index High Yield Index 10/07 $5,000,000 $ 5,000,000 $ 5,000,000 10/08 $3,451,771 $ 3,581,359 $ 3,674,145 10/09 $4,962,819 $ 5,558,651 $ 5,466,802 10/10 $6,022,187 $ 6,640,191 $ 6,519,651 10/11 $6,073,094 $ 6,871,805 $ 6,833,448 10/12 $6,823,118 $ 7,859,893 $ 7,734,126 10/13 $7,319,400 $ 8,602,701 $ 8,416,815 10/14 $7,568,347 $ 8,994,399 $ 8,909,224 10/15 $7,108,487 $ 8,809,655 $ 8,726,439 10/16 $7,630,267 $ 9,675,665 $ 9,613,446 10/17 $8,439,528 $10,647,027 $10,492,190 Call 1-800-225-6292 or visit www.amundipioneer.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Please refer to the financial highlights for a more current expense ratio. Pioneer Global High Yield Fund | Annual Report | 10/31/17 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 High Yield Fund Based on actual returns from May 1, 2017, through October 31, 2017. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 Value on 5/1/17 -------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,047.27 $1,042.58 $1,047.94 on 10/31/17 -------------------------------------------------------------------------------- Expenses Paid During Period* $ 6.09 $ 9.73 $ 4.70 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.18%, 1.89% and 0.91% for Class A, Class C and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). 14 Pioneer Global High Yield Fund | Annual Report | 10/31/17 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 May 1, 2017, through October 31, 2017. -------------------------------------------------------------------------------- Share Class A C Y -------------------------------------------------------------------------------- Beginning Account $1,000.00 $1,000.00 $1,000.00 Value on 5/1/17 -------------------------------------------------------------------------------- Ending Account Value (after expenses) $1,019.26 $1,015.68 $1,020.62 on 10/31/17 -------------------------------------------------------------------------------- Expenses Paid During Period* $ 6.01 $ 9.60 $ 4.63 -------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized net expense ratio of 1.18%, 1.89% and 0.91% for Class A, Class C and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 184/365 (to reflect the one-half year period). Pioneer Global High Yield Fund | Annual Report | 10/31/17 15 Schedule of Investments | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- UNAFFILIATED ISSUERS -- 98.7% CONVERTIBLE CORPORATE BONDS -- 1.7% of Net Assets CAPITAL GOODS -- 0.1% Electrical Components & Equipment -- 0.1% 575,000(a) General Cable Corp., 4.5%, 11/15/29 $ 552,359 ------------- Total Capital Goods $ 552,359 ----------------------------------------------------------------------------------------------------- ENERGY -- 0.5% Oil & Gas Exploration & Production -- 0.3% 1,785,000 Whiting Petroleum Corp., 1.25%, 4/1/20 $ 1,600,922 ----------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation -- 0.2% 1,375,000 Golar LNG, Ltd., 2.75%, 2/15/22 (144A) $ 1,257,266 ------------- Total Energy $ 2,858,188 ----------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 0.3% Health Care Equipment -- 0.3% 875,000 NuVasive, Inc., 2.25%, 3/15/21 $ 1,012,812 575,000 Wright Medical Group, Inc., 2.0%, 2/15/20 622,438 ------------- Total Health Care Equipment & Services $ 1,635,250 ----------------------------------------------------------------------------------------------------- MATERIALS -- 0.1% Construction Materials -- 0.1% 850,000 Cemex SAB de CV, 3.72%, 3/15/20 $ 900,469 ----------------------------------------------------------------------------------------------------- Steel -- 0.0%+ EUR 276,548(b) New World Resources NV, 4.0% (8.0% PIK 4.0% cash), 10/7/20 (144A) $ 32 ------------- Total Materials $ 900,501 ----------------------------------------------------------------------------------------------------- MEDIA -- 0.3% Cable & Satellite -- 0.3% 2,148,000 DISH Network Corp., 2.375%, 3/15/24 (144A) $ 2,063,423 ------------- Total Media $ 2,063,423 ----------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 0.1% Pharmaceuticals -- 0.1% 300,000 Jazz Investments I, Ltd., 1.875%, 8/15/21 $ 308,625 600,000 Medicines Co., 2.75%, 7/15/23 562,125 ------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 870,750 ----------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 0.3% Application Software -- 0.3% 1,258,000 Citrix Systems, Inc., 0.5%, 4/15/19 $ 1,542,622 ------------- Total Software & Services $ 1,542,622 ----------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE CORPORATE BOND (Cost $10,806,171) $ 10,423,093 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 16 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Shares Value PREFERRED STOCK -- 0.4% of Net Assets DIVERSIFIED FINANCIALS -- 0.4% Consumer Finance -- 0.4% 96,924(c)(d) GMAC Capital Trust I, 7.1% (3 Month USD LIBOR + 579 bps), 2/15/40 $ 2,545,224 ------------- Total Diversified Financials $ 2,545,224 ----------------------------------------------------------------------------------------------------- TOTAL PREFERRED STOCK (Cost $2,307,205) $ 2,545,224 ----------------------------------------------------------------------------------------------------- CONVERTIBLE PREFERRED STOCKS -- 0.8% of Net Assets BANKS -- 0.8% Diversified Banks -- 0.8% 2,650(d)(e) Bank of America Corp., 7.25% $ 3,436,944 1,000(d)(e) Wells Fargo & Co., 7.5% 1,310,000 ------------- Total Banks $ 4,746,944 ----------------------------------------------------------------------------------------------------- TOTAL CONVERTIBLE PREFERRED STOCK (Cost $4,521,835) $ 4,746,944 ----------------------------------------------------------------------------------------------------- COMMON STOCKS -- 0.8% of Net Assets AUTOMOBILES & COMPONENTS -- 0.0%+ Automobile Manufacturers -- 0.0%+ 16,820(d) Ford Motor Co. $ 206,382 ------------- Total Automobiles & Components $ 206,382 ----------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.0%+ Construction & Engineering -- 0.0%+ 530,321(d) Abengoa SA, Class A $ 20,388 5,483,653(d) Abengoa SA, Class B 76,662 ------------- $ 97,050 ----------------------------------------------------------------------------------------------------- Industrial Machinery -- 0.0%+ 156,027(d)(f) Liberty Tire Recycling LLC $ 1,560 ------------- Total Capital Goods $ 98,610 ----------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 0.0%+ Homebuilding -- 0.0%+ 1,443,476(d) Desarrolladora Homex SAB de CV $ 59,560 ------------- Total Consumer Durables & Apparel $ 59,560 ----------------------------------------------------------------------------------------------------- ENERGY -- 0.4% Coal & Consumable Fuels -- 0.0%+ 49(d) Alpha Natural Resources Holdings, Inc. $ 196 37(d) Contura Energy, Inc. 2,187 ------------- $ 2,383 ----------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 0.4% 5,735,146(d)(f) Ascent CNR Corp. $ 1,233,056 39,631(d) Frontera Energy Corp. 1,184,896 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 17 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Shares Value ----------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production (continued) 1,046(d) Midstates Petroleum Co., Inc. $ 15,951 203(d) SilverBow Resources, Inc. 4,565 ------------- $ 2,438,468 ------------- Total Energy $ 2,440,851 ----------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 0.1% Distillers & Vintners -- 0.1% 18,811(d) Marie Brizard Wine & Spirits SA $ 281,605 ------------- Total Food, Beverage & Tobacco $ 281,605 ----------------------------------------------------------------------------------------------------- MATERIALS -- 0.0%+ Steel -- 0.0%+ 49(d) ANR, Inc., Class C $ 1,029 ------------- Total Materials $ 1,029 ----------------------------------------------------------------------------------------------------- TRANSPORTATION -- 0.3% Air Freight & Logistics -- 0.3% 5,012+(d) CEVA Holdings LLC $ 2,029,787 ------------- Total Transportation $ 2,029,787 ----------------------------------------------------------------------------------------------------- TOTAL COMMON STOCK (Cost $18,091,947) $ 5,117,824 ----------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) ----------------------------------------------------------------------------------------------------- ASSET BACKED SECURITY -- 0.1% of Net Assets BANKS -- 0.1% Thrifts & Mortgage Finance -- 0.1% 450,000 InSite Issuer LLC, Series 2016-1A, Class C, 6.414%, 11/15/46 (144A) $ 460,345 ------------- Total Banks $ 460,345 ----------------------------------------------------------------------------------------------------- TOTAL ASSET BACKED SECURITY (Cost $450,000) $ 460,345 ----------------------------------------------------------------------------------------------------- COLLATERALIZED MORTGAGE OBLIGATIONS -- 1.2% of Net Assets BANKS -- 1.2% Diversified Banks -- 0.1% 850,000(g) Wells Fargo Commercial Mortgage Trust, Series 2014-LC18, Class D, 3.957%, 12/15/47 (144A) $ 713,859 ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- 1.1% 630,000(g) BAMLL Commercial Mortgage Securities Trust, Series 2016-FR14, Class C, 1.388%, 2/27/48 (144A) $ 554,400 1,500,000(g) Banc of America Commercial Mortgage Trust, Series 2007-4, Class D, 5.907%, 2/10/51 (144A) 1,500,000 1,500,000(g) Citigroup Commercial Mortgage Trust, Series 2014-GC23, Class E, 3.208%, 7/10/47 (144A) 970,198 1,480,000(g) COBALT CMBS Commercial Mortgage Trust, Series 2007-C3, Class B, 5.842%, 5/15/46 1,477,247 The accompanying notes are an integral part of these financial statements. 18 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance (continued) 455,000(g) COBALT CMBS Commercial Mortgage Trust, Series 2007-C3, Class C, 5.842%, 5/15/46 $ 322,281 750,000(c) Commercial Mortgage Trust, Series 2014-FL5, Class D, 5.239% (1 Month USD LIBOR + 400 bps), 10/15/31 (144A) 712,725 375,000(g) Commercial Mortgage Trust, Series 2014-UBS4, Class D, 4.687%, 8/10/47 (144A) 333,736 256,362 Homeowner Assistance Program Reverse Mortgage Loan Trust, Series 2013-RM1, Class A, 4.0%, 5/26/53 (144A) 255,721 500,000(g) JPMBB Commercial Mortgage Securities Trust, Series 2014-C25, Class D, 3.946%, 11/15/47 (144A) 386,334 500,000(g) Wachovia Bank Commercial Mortgage Trust, Series 2006-C27, Class B, 5.865%, 7/15/45 505,227 ------------- $ 7,017,869 ------------- Total Banks $ 7,731,728 ----------------------------------------------------------------------------------------------------- TOTAL COLLATERALIZED MORTGAGE OBLIGATION (Cost $7,770,854) $ 7,731,728 ----------------------------------------------------------------------------------------------------- CORPORATE BONDS -- 79.9% of Net Assets AUTOMOBILES & COMPONENTS -- 0.8% Auto Parts & Equipment -- 0.8% 375,000 Allison Transmission, Inc., 4.75%, 10/1/27 (144A) $ 378,750 2,035,000 Dana Financing Luxembourg S.a.r.l., 6.5%, 6/1/26 (144A) 2,213,063 EUR 1,350,000(b) IHO Verwaltungs GmbH, 3.75% (4.5% PIK 0.0% cash), 9/15/26 (144A) 1,682,842 877,000 TI Group Automotive Systems LLC, 8.75%, 7/15/23 (144A) 947,160 ------------- Total Automobiles & Components $ 5,221,815 ----------------------------------------------------------------------------------------------------- BANKS -- 7.0% Diversified Banks -- 5.3% 800,000 Access Bank Plc, 10.5%, 10/19/21 (144A) $ 904,176 1,600,000 Akbank Turk AS, 5.125%, 3/31/25 1,549,542 2,000,000(e)(g) Alfa Bank AO Via Alfa Bond Issuance Plc, 8.0% (5 Year USD Swap Rate + 666 bps) 2,129,660 1,175,000(e)(g) Banco do Brasil SA, 9.0% (5 Year CMT Index + 636 bps) 1,289,563 295,000(g) Banco Nacional de Comercio Exterior SNC, 3.8% (5 Year CMT Index + 300 bps), 8/11/26 (144A) 293,525 700,000 BBVA Bancomer SA, 6.75%, 9/30/22 (144A) 794,850 2,114,000(e)(g) BNP Paribas SA, 7.625% (5 Year USD Swap Rate + 631 bps) (144A) 2,370,322 1,200,000(e)(g) Danske Bank A/S, 6.125% (USD Swap Rate + 390 bps) 1,302,245 2,971,000 Finansbank AS, 4.875%, 5/19/22 (144A) 2,930,624 1,299,000(e)(g) HSBC Holdings Plc, 6.0% (5 Year USD 1100 Run ICE Swap Rate + 375 bps) 1,380,187 1,685,000(e)(g) ING Groep NV, 6.5% (5 Year USD Swap Rate + 445 bps) 1,849,456 INR 31,450,000 International Bank for Reconstruction & Development, 5.75%, 10/28/19 487,733 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 19 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Diversified Banks (continued) ARS 17,443,000 Letras del Banco Central de la Republica Argentina, 0.0%, 4/18/18 $ 873,864 EUR 970,000(e)(g) Lloyds Banking Group Plc, 6.375% (5 Year EUR Swap Rate + 529 bps) 1,255,533 1,773,000(e)(g) Royal Bank of Scotland Group Plc, 8.0% (5 Year USD Swap Rate + 572 bps) 2,026,894 1,570,000(e)(g) Royal Bank of Scotland Group Plc, 8.625% (5 Year USD Swap Rate + 760 bps) 1,777,868 750,000 Sberbank of Russia Via SB Capital SA, 5.25%, 5/23/23 (144A) 783,435 2,140,000(e)(g) Societe Generale SA, 7.375% (5 Year USD Swap Rate + 624 bps) (144A) 2,359,350 1,840,000 Turkiye Is Bankasi, 5.375%, 10/6/21 (144A) 1,842,767 1,500,000 Turkiye Is Bankasi, 5.5%, 4/21/22 (144A) 1,494,747 350,000 Turkiye Is Bankasi, 6.125%, 4/25/24 (144A) 348,837 1,860,000 Turkiye Vakiflar Bankasi TAO, 5.625%, 5/30/22 (144A) 1,855,350 759,000(g) Turkiye Vakiflar Bankasi TAO, 8.0% (5 Year USD Swap Rate + 585 bps), 11/1/27 (144A) 779,721 ------------- $ 32,680,249 ----------------------------------------------------------------------------------------------------- Supranational -- 1.3% INR 28,480,000 Asian Development Bank, 5.9%, 12/20/22 $ 438,144 INR 134,290,000 Asian Development Bank, 6.2%, 10/6/26 2,088,146 INR 108,160,000 Asian Development Bank, 6.45%, 8/8/21 1,705,591 290,000 Banque Ouest Africaine de Developpement, 5.0%, 7/27/27 (144A) 301,600 2,386,000 Banque Ouest Africaine de Developpement, 5.5%, 5/6/21 (144A) 2,543,934 ARS 16,270,000(k) European Bank for Reconstruction & Development, 2/1/19 736,098 250,000(c) International Bank for Reconstruction & Development, 12.557% (6 Month USD LIBOR + 1,150 bps), 7/15/20 (144A) 249,855 ------------- $ 8,063,368 ----------------------------------------------------------------------------------------------------- Thrifts & Mortgage Finance -- 0.4% 2,615,000 Financiera Independencia SAB de CV SOFOM ENR, 8.0%, 7/19/24 (144A) $ 2,706,786 ------------- Total Banks $ 43,450,403 ----------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 3.9% Aerospace & Defense -- 0.7% EUR 3,615,000 TA MFG., Ltd., 3.625%, 4/15/23 (144A) $ 4,349,489 ----------------------------------------------------------------------------------------------------- Construction & Engineering -- 0.2% 1,475,000 Amsted Industries, Inc., 5.375%, 9/15/24 (144A) $ 1,548,750 ----------------------------------------------------------------------------------------------------- Construction & Farm Machinery & Heavy Trucks -- 0.3% EUR 735,000 Loxam SAS, 4.25%, 4/15/24 (144A) $ 917,998 EUR 705,000 Loxam SAS, 6.0%, 4/15/25 (144A) 897,421 ------------- $ 1,815,419 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 20 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Electrical Components & Equipment -- 0.5% 920,000 Exterran Energy Solutions LP / EES Finance Corp., 8.125%, 5/1/25 (144A) $ 968,300 2,000,000 General Cable Corp., 5.75%, 10/1/22 2,050,000 ------------- $ 3,018,300 ----------------------------------------------------------------------------------------------------- Industrial Conglomerates -- 0.5% 2,388,000 JB Poindexter & Co., Inc., 9.0%, 4/1/22 (144A) $ 2,498,445 485,000 Park-Ohio Industries, Inc., 6.625%, 4/15/27 526,225 ------------- $ 3,024,670 ----------------------------------------------------------------------------------------------------- Industrial Machinery -- 0.7% 1,315,000 Apex Tool Group LLC, 7.0%, 2/1/21 (144A) $ 1,245,963 EUR 2,365,000 Colfax Corp., 3.25%, 5/15/25 (144A) 2,887,751 ------------- $ 4,133,714 ----------------------------------------------------------------------------------------------------- Trading Companies & Distributors -- 1.0% 1,174,000 H&E Equipment Services, Inc., 5.625%, 9/1/25 (144A) $ 1,240,038 1,500,000 United Rentals North America, Inc., 4.625%, 10/15/25 1,534,725 1,500,000 United Rentals North America, Inc., 4.875%, 1/15/28 1,507,500 1,690,000 WESCO Distribution, Inc., 5.375%, 12/15/21 1,741,714 ------------- $ 6,023,977 ------------- Total Capital Goods $ 23,914,319 ----------------------------------------------------------------------------------------------------- COMMERCIAL SERVICES & SUPPLIES -- 0.1% Environmental & Facilities Services -- 0.1% 745,000 Clean Harbors, Inc., 5.125%, 6/1/21 $ 755,244 ------------- Total Commercial Services & Supplies $ 755,244 ----------------------------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 2.0% Homebuilding -- 2.0% 2,237,897(b) Abengoa Abenewco 2 SAU, 1.5% (1.25% PIK 0.25% cash), 3/31/23 (144A) $ 106,300 1,000,000 Beazer Homes USA, Inc., 5.875%, 10/15/27 (144A) 998,750 1,984,000 Beazer Homes USA, Inc., 6.75%, 3/15/25 2,098,675 460,000 Beazer Homes USA, Inc., 8.75%, 3/15/22 511,152 1,345,000 KB Home, 7.0%, 12/15/21 1,516,487 2,079,000 Lennar Corp., 4.75%, 11/15/22 2,195,944 2,200,000 Rialto Holdings LLC / Rialto Corp., 7.0%, 12/1/18 (144A) 2,205,500 1,625,000 Taylor Morrison Communities, Inc / Taylor Morrison Holdings II, Inc., 5.875%, 4/15/23 (144A) 1,739,758 1,150,000 TRI Pointe Group, Inc., 5.25%, 6/1/27 1,175,875 ------------- Total Consumer Durables & Apparel $ 12,548,441 ----------------------------------------------------------------------------------------------------- CONSUMER SERVICES -- 2.6% Casinos & Gaming -- 2.0% EUR 1,870,000 Codere Finance 2 Luxembourg SA, 6.75%, 11/1/21 (144A) $ 2,276,672 1,370,000 Golden Nugget, Inc., 8.75%, 10/1/25 (144A) 1,407,675 EUR 2,125,000 Intralot Capital Luxembourg SA, 5.25%, 9/15/24 (144A) 2,525,137 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 21 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Casinos & Gaming (continued) EUR 1,275,000 Intralot Capital Luxembourg SA, 6.75%, 9/15/21 (144A) $ 1,594,476 91,432(b)(h) Mashantucket Western Pequot Tribe, 6.5% (5.5% PIK 1.0% cash), 7/1/36 457 3,831,000 Scientific Games International, Inc., 10.0%, 12/1/22 4,237,776 ------------- $ 12,042,193 ----------------------------------------------------------------------------------------------------- Hotels, Resorts & Cruise Lines -- 0.2% 1,502,000 Viking Cruises, Ltd., 5.875%, 9/15/27 (144A) $ 1,513,265 ----------------------------------------------------------------------------------------------------- Specialized Consumer Services -- 0.4% 1,350,000 Aegea Finance S.a.r.l., 5.75%, 10/10/24 (144A) $ 1,386,720 1,140,000 Ashtead Capital, Inc., 4.125%, 8/15/25 (144A) 1,148,550 ------------- $ 2,535,270 ------------- Total Consumer Services $ 16,090,728 ----------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 5.0% Consumer Finance -- 1.4% 155,000 Ally Financial, Inc., 4.625%, 3/30/25 $ 164,881 913,000 Ally Financial, Inc., 5.75%, 11/20/25 1,007,724 1,925,000 Credito Real SAB de CV SOFOM ER, 7.25%, 7/20/23 (144A) 2,027,025 INR 94,350,000 International Finance Corp., 6.3%, 11/25/24 1,476,310 INR 240,670,000 International Finance Corp., 8.25%, 6/10/21 3,995,661 ------------- $ 8,671,601 ----------------------------------------------------------------------------------------------------- Diversified Capital Markets -- 0.5% 759,000(e)(g) Credit Suisse Group AG, 7.125% (5 Year USD Swap Rate + 511 bps) $ 831,105 1,775,000(e)(g) UBS Group AG, 7.125% (5 Year USD Swap Rate + 588 bps) 1,948,062 ------------- $ 2,779,167 ----------------------------------------------------------------------------------------------------- Investment Banking & Brokerage -- 0.4% 2,028,000 UBS AG, 7.625%, 8/17/22 $ 2,393,040 ----------------------------------------------------------------------------------------------------- Specialized Finance -- 2.7% 1,992,872(b) AAF Holdings LLC / AAF Finance Co., 12.0% (12.75% PIK 12.0% cash), 7/1/19 (144A) $ 2,092,516 3,000,000 Cantor Fitzgerald LP, 7.875%, 10/15/19 (144A) 3,279,447 1,925,000 Gerdau Trade, Inc., 4.875%, 10/24/27 (144A) 1,931,256 1,185,000 Nationstar Mortgage LLC / Nationstar Capital Corp., 6.5%, 7/1/21 1,202,775 4,870,000 Nationstar Mortgage LLC / Nationstar Capital Corp., 6.5%, 6/1/22 4,991,750 3,300,000 Nova Austral SA, 8.25%, 5/26/21 (144A) 3,381,801 ------------- $ 16,879,545 ------------- Total Diversified Financials $ 30,723,353 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 22 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- ENERGY -- 13.5% Integrated Oil & Gas -- 3.3% 445,000 Ascent Resources Utica Holdings LLC / ARU Finance Corp., 10.0%, 4/1/22 (144A) $ 482,825 5,725,000 Petrobras Global Finance BV, 5.299%, 1/27/25 (144A) 5,743,606 4,665,000 Petrobras Global Finance BV, 5.375%, 1/27/21 4,904,081 1,256,000 Petrobras Global Finance BV, 6.25%, 3/17/24 1,346,872 1,250,000 Petrobras Global Finance BV, 7.375%, 1/17/27 1,388,125 700,000(c) Petroleos Mexicanos, 4.967% (3 Month USD LIBOR + 365 bps), 3/11/22 (144A) 763,000 1,600,000 Petroleos Mexicanos, 6.5%, 3/13/27 (144A) 1,747,200 MXN 8,650,000 Petroleos Mexicanos, 7.19%, 9/12/24 (144A) 404,761 2,475,000 YPF SA, 6.95%, 7/21/27 (144A) 2,653,200 ARS 22,125,000 YPF SA, 16.5%, 5/9/22 (144A) 1,179,158 ------------- $ 20,612,828 ----------------------------------------------------------------------------------------------------- Oil & Gas Drilling -- 0.6% 2,306,000 Rowan Cos., Inc., 5.4%, 12/1/42 $ 1,752,560 417,000 Rowan Cos., Inc., 5.85%, 1/15/44 335,685 455,000 Transocean, Inc., 7.5%, 1/15/26 (144A) 468,650 1,170,000 Trinidad Drilling, Ltd., 6.625%, 2/15/25 (144A) 1,137,825 ------------- $ 3,694,720 ----------------------------------------------------------------------------------------------------- Oil & Gas Equipment & Services -- 0.4% 1,117,000 Archrock Partners LP / Archrock Partners Finance Corp., 6.0%, 4/1/21 $ 1,111,415 1,000,000 Archrock Partners LP / Archrock Partners Finance Corp., 6.0%, 10/1/22 993,750 505,000 SESI LLC, 7.75%, 9/15/24 (144A) 522,675 ------------- $ 2,627,840 ----------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 5.5% 1,285,000 Antero Resources Corp., 5.0%, 3/1/25 $ 1,304,275 300,000 California Resources Corp., 8.0%, 12/15/22 (144A) 198,000 1,245,000 Carrizo Oil & Gas, Inc., 6.25%, 4/15/23 1,266,787 167,000 Chesapeake Energy Corp., 8.0%, 12/15/22 (144A) 179,682 718,000 Cobalt International Energy, Inc., 7.75%, 12/1/23 (144A) 442,467 1,826,000 Cobalt International Energy, Inc., 10.75%, 12/1/21 (144A) 1,876,215 1,385,000 Continental Resources, Inc., 3.8%, 6/1/24 1,345,181 965,000 Covey Park Energy LLC / Covey Park Finance Corp., 7.5%, 5/15/25 (144A) 1,001,188 850,000 Extraction Oil & Gas, Inc., 7.375%, 5/15/24 (144A) 905,250 1,920,000 Geopark, Ltd., 6.5%, 9/21/24 (144A) 1,968,960 1,380,000 Great Western Petroleum LLC / Great Western Finance, Inc., 9.0%, 9/30/21 (144A) 1,414,500 1,055,000 Gulfport Energy Corp., 6.0%, 10/15/24 1,055,000 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 23 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production (continued) 2,000,000 Gulfport Energy Corp., 6.375%, 5/15/25 $ 2,030,000 212,000 Halcon Resources Corp., 6.75%, 2/15/25 (144A) 216,770 2,390,000 Hilcorp Energy I LP / Hilcorp Finance Co., 5.0%, 12/1/24 (144A) 2,378,050 575,000 MEG Energy Corp., 6.5%, 1/15/25 (144A) 572,125 1,460,000 MEG Energy Corp., 7.0%, 3/31/24 (144A) 1,324,950 425,000 Newfield Exploration Co., 5.625%, 7/1/24 459,531 2,915,000 Nostrum Oil & Gas Finance BV, 8.0%, 7/25/22 (144A) 3,033,058 1,455,000 Novatek OAO via Novatek Finance DAC, 4.422%, 12/13/22 (144A) 1,495,304 1,515,000 Oasis Petroleum, Inc., 6.875%, 3/15/22 1,552,875 320,000 Parsley Energy LLC / Parsley Finance Corp., 5.25%, 8/15/25 (144A) 323,200 1,460,000 Parsley Energy LLC / Parsley Finance Corp., 5.375%, 1/15/25 (144A) 1,481,900 600,000 Parsley Energy LLC / Parsley Finance Corp., 5.625%, 10/15/27 (144A) 619,128 250,000 Parsley Energy LLC / Parsley Finance Corp., 6.25%, 6/1/24 (144A) 265,000 1,560,000 Rice Energy, Inc., 6.25%, 5/1/22 1,632,384 2,727,000 Sanchez Energy Corp., 6.125%, 1/15/23 2,277,045 200,000 SM Energy Co., 6.125%, 11/15/22 201,000 945,000 SM Energy Co., 6.75%, 9/15/26 969,806 ------------- $ 33,789,631 ----------------------------------------------------------------------------------------------------- Oil & Gas Refining & Marketing -- 0.8% 1,790,000 Calumet Specialty Products Partners LP / Calumet Finance Corp., 6.5%, 4/15/21 $ 1,751,963 448,000 EnLink Midstream Partners LP, 5.05%, 4/1/45 438,654 1,299,000 EnLink Midstream Partners LP, 5.6%, 4/1/44 1,351,029 1,056,842(c) EP PetroEcuador via Noble Sovereign Funding I, Ltd., 6.961% (3 Month USD LIBOR + 563 bps), 9/24/19 1,075,865 415,000 PBF Holding Co., LLC / PBF Finance Corp., 7.0%, 11/15/23 431,600 ------------- $ 5,049,111 ----------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation -- 2.9% 2,447,000 Cheniere Corpus Christi Holdings LLC, 5.125%, 6/30/27 (144A) $ 2,523,469 1,730,000 Cheniere Energy Partners LP, 5.25%, 10/1/25 (144A) 1,781,900 1,500,000 Delek Logistics Partners LP, 6.75%, 5/15/25 (144A) 1,528,125 1,085,000 Energy Transfer Equity LP, 5.875%, 1/15/24 1,177,225 1,090,000 Genesis Energy LP / Genesis Energy Finance Corp., 5.75%, 2/15/21 1,106,786 1,395,000 Genesis Energy LP / Genesis Energy Finance Corp., 6.5%, 10/1/25 1,412,437 1,820,000 Global Partners LP / GLP Finance Corp., 7.0%, 6/15/23 1,847,300 The accompanying notes are an integral part of these financial statements. 24 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Oil & Gas Storage & Transportation (continued) 1,000,000(c) Golar LNG Partners LP, 7.565% (3 Month USD LIBOR + 625 bps), 5/18/21 (144A) $ 987,511 500,000 Sabine Pass Liquefaction LLC, 5.0%, 3/15/27 537,945 710,000 Sabine Pass Liquefaction LLC, 5.875%, 6/30/26 803,242 2,150,000 Targa Resources Partners LP / Targa Resources Partners Finance Corp., 4.25%, 11/15/23 2,139,250 559,000 Targa Resources Partners LP / Targa Resources Partners Finance Corp., 5.0%, 1/15/28 (144A) 560,398 1,375,000 Williams Cos., Inc., 4.55%, 6/24/24 1,436,875 ------------- $ 17,842,463 ------------- Total Energy $ 83,616,593 ----------------------------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 0.2% Food Retail -- 0.2% 1,285,000 C&S Group Enterprises LLC, 5.375%, 7/15/22 (144A) $ 1,246,450 ------------- Total Food & Staples Retailing $ 1,246,450 ----------------------------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 6.0% Packaged Foods & Meats -- 5.6% GBP 1,170,000 Boparan Finance Plc, 5.5%, 7/15/21 (144A) $ 1,470,615 1,335,000(h) CFG Investment SAC, 9.75%, 7/30/19 (144A) 1,365,037 EUR 1,353,000 Darling Global Finance BV, 4.75%, 5/30/22 (144A) 1,647,176 950,000 JBS Investments GmbH, 7.25%, 4/3/24 (144A) 938,125 3,135,000 JBS USA LUX SA / JBS USA Finance, Inc., 5.75%, 6/15/25 (144A) 3,040,950 525,000 Lamb Weston Holdings, Inc., 4.625%, 11/1/24 (144A) 548,625 525,000 Lamb Weston Holdings, Inc., 4.875%, 11/1/26 (144A) 551,906 1,335,000 MARB BondCo Plc, 7.0%, 3/15/24 (144A) 1,345,012 3,015,000 Marfrig Holdings Europe BV, 6.875%, 6/24/19 (144A) 3,116,756 3,923,000 Marfrig Holdings Europe BV, 8.0%, 6/8/23 (144A) 4,099,535 1,425,000 MHP SE, 8.25%, 4/2/20 (144A) 1,539,000 1,560,000 Minerva Luxembourg SA, 6.5%, 9/20/26 (144A) 1,617,720 6,530,000 Minerva Luxembourg SA, 7.75%, 1/31/23 (144A) 6,832,013 5,000,000 Pesquera Exalmar SAA, 7.375%, 1/31/20 (144A) 4,875,000 830,000 Pilgrim's Pride Corp., 5.875%, 9/30/27 (144A) 863,200 255,000 Post Holdings, Inc., 5.5%, 3/1/25 (144A) 265,838 1,226,687(h) Tonon Luxembourg SA, 10.5%, 5/14/24 (144A) 502,942 ------------- $ 34,619,450 ----------------------------------------------------------------------------------------------------- Tobacco -- 0.4% 535,000 Alliance One International, Inc., 8.5%, 4/15/21 (144A) $ 560,413 2,125,000 Alliance One International, Inc., 9.875%, 7/15/21 1,872,656 ------------- $ 2,433,069 ------------- Total Food, Beverage & Tobacco $ 37,052,519 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 25 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 3.6% Health Care Facilities -- 1.2% 495,000 CHS/Community Health Systems, Inc., 6.25%, 3/31/23 $ 476,437 3,915,000 CHS/Community Health Systems, Inc., 6.875%, 2/1/22 2,833,481 1,725,000 Kindred Healthcare, Inc., 6.375%, 4/15/22 1,596,488 1,320,000 Kindred Healthcare, Inc., 8.0%, 1/15/20 1,333,200 1,175,000 RegionalCare Hospital Partners Holdings, Inc., 8.25%, 5/1/23 (144A) 1,233,750 ------------- $ 7,473,356 ----------------------------------------------------------------------------------------------------- Health Care Services -- 0.3% 1,430,000 Team Health Holdings, Inc., 6.375%, 2/1/25 (144A) $ 1,315,600 595,000 Universal Hospital Services, Inc., 7.625%, 8/15/20 602,438 ------------- $ 1,918,038 ----------------------------------------------------------------------------------------------------- Health Care Technology -- 0.7% EUR 1,300,000 Quintiles IMS, Inc., 2.875%, 9/15/25 (144A) $ 1,537,218 EUR 2,200,000 Quintiles IMS, Inc., 3.25%, 3/15/25 (144A) 2,653,089 ------------- $ 4,190,307 ----------------------------------------------------------------------------------------------------- Managed Health Care -- 1.4% 1,840,000 Centene Corp., 4.75%, 5/15/22 $ 1,927,400 245,000 Centene Corp., 4.75%, 1/15/25 252,962 1,550,000 Centene Corp., 5.625%, 2/15/21 1,608,125 1,500,000 Molina Healthcare, Inc., 5.375%, 11/15/22 1,560,750 3,155,000 WellCare Health Plans, Inc., 5.25%, 4/1/25 3,320,638 ------------- $ 8,669,875 ------------- Total Health Care Equipment & Services $ 22,251,576 ----------------------------------------------------------------------------------------------------- HOUSEHOLD & PERSONAL PRODUCTS -- 0.5% Household Cleaning Supplies -- 0.3% EUR 1,400,000 Diamond BC BV, 5.625%, 8/15/25 (144A) $ 1,685,097 ----------------------------------------------------------------------------------------------------- Personal Products -- 0.2% 375,000 Revlon Consumer Products Corp., 5.75%, 2/15/21 $ 321,562 1,200,000 Revlon Consumer Products Corp., 6.25%, 8/1/24 885,000 ------------- $ 1,206,562 ------------- Total Household & Personal Products $ 2,891,659 ----------------------------------------------------------------------------------------------------- INSURANCE -- 2.2% Reinsurance -- 2.2% 450,000(c) Alamo Re, Ltd., 5.944% (3 Month Treasury Bill + 481 bps), 6/7/18 (144A) (Cat Bond) $ 456,210 1,300,000+(i)(j) Arlington Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 8/1/18 63,180 1,000,000+(i)(j) Berwick Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 12/31/17 30,000 800,000+(i)(j) Berwick Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 2/1/18 38,000 The accompanying notes are an integral part of these financial statements. 26 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Reinsurance (continued) 500,000(c) Caelus Re V, Ltd., Series D, 10.381% (3 Month Treasury Bill + 925 bps), 6/5/20 (144A) (Cat Bond) $ 236,150 3,900,000+(i)(j) Carnoustie Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 12/31/17 79,560 2,600,000+(i)(j) Carnoustie Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 11/30/20 281,320 800,000+(i)(j) Carnoustie Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 11/30/21 720,000 600,000+(i)(j) Cyprus Segregated Account (Artex SAC, Ltd.), Series 2017, Variable Rate Notes, 1/10/18 517,260 2,646+(i)(j) Eden Re II, Ltd., Variable Rate Notes, 4/23/19 (144A) 45,428 600,000+(i)(j) Eden Re II, Ltd., Variable Rate Notes, 3/22/21 (144A) 577,080 300,000(c) Galilei Re, Ltd., 6.375% (6 Month USD LIBOR + 525 bps), 1/8/20 (144A) (Cat Bond) 292,410 300,000(c) Galilei Re, Ltd., 7.375% (6 Month USD LIBOR + 625 bps), 1/8/20 (144A) (Cat Bond) 282,720 300,000(c) Galilei Re, Ltd., 7.395% (6 Month USD LIBOR + 625 bps), 1/8/21 (144A) (Cat Bond) 276,330 250,000(c) Galilei Re, Ltd., 9.125% (6 Month USD LIBOR + 800 bps), 1/8/20 (144A) (Cat Bond) 217,150 1,600,000+(i)(j) Gleneagles Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 11/30/20 187,520 3,500,000+(i)(j) Gullane Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 11/30/20 76,300 800,000+(i)(j) Gullane Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 11/30/21 784,160 500,000(c) Kilimanjaro II Re, Ltd., 11.209% (6 Month USD LIBOR + 1,000 bps), 4/20/21 (144A) (Cat Bond) 309,150 300,000+(i)(j) Kingsbarns Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 5/1/18 277,860 250,000+(i)(j) Limestone Re, Ltd., Series 1, Class A Non Voting, Variable Rate Notes, 8/31/21 231,250 250,000+(i)(j) Limestone Re, Ltd., Series 1, Class A Voting, Variable Rate Notes, 8/31/21 231,250 1,100,000+(i)(j) Lorenz Re, Ltd. (Prime, Ltd.), Variable Rate Notes, 3/31/19 61,600 450,000+(i)(j) Lorenz Re, Ltd. (Prime, Ltd.), Variable Rate Notes, 3/31/20 405,405 490,000+(i)(j) Madison Re, Variable Rate Notes, 3/31/19 31,115 300,000+(i)(j) Madison Re, Variable Rate Notes, 3/31/20 214,890 400,000(c) Northshore Re II, Ltd., 8.376% (3 Month Treasury Bill + 725 bps), 7/6/20 (144A) (Cat Bond) 405,400 250,000+(i)(j) Oakmont 2017 Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 4/1/18 228,725 3,900,000+(i)(j) Pangaea Re Segregated Account (Artex SAC, Ltd.), Series 2015-1, Variable Rate Notes, 2/1/19 17,550 3,500,000+(i)(j) Pangaea Re Segregated Account (Artex SAC, Ltd.), Series 2016-1, Variable Rate Notes, 2/1/20 231,350 The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 27 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Reinsurance (continued) 1,000,000+(i)(j) Pangaea Re Segregated Account (Artex SAC, Ltd.), Series 2016-2, Variable Rate Notes, 11/30/20 $ 65,800 300,000+(i)(j) Pinehurst Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 1/16/18 297,150 300,000+(i)(j) Portrush 2017 Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 6/15/18 280,470 1,300,000+(i)(j) Prestwick Segregated Account (Artex SAC Ltd.), Variable Rate Notes, 12/31/17 22,100 250,000(k) Residential Reinsurance 2016, Ltd., 12/6/17 (144A) (Cat Bond) 248,425 500,000(c) Residential Reinsurance 2016, Ltd., 6.501% (3 Month Treasury Bill + 537 bps), 12/6/20 (144A) (Cat Bond) 495,050 400,000+(i)(j) Resilience Re, Ltd., Variable Rate Notes, 1/8/19 (144A) 400,000 400,000+(i)(j) Resilience Re, Ltd., Variable Rate Notes, 4/6/18 347,520 AUD 300,000+(i)(j) Rewire Securities LLC, Variable Rate Notes, 1/10/18 7,595 5,450+(i)(j) Sector Re V, Ltd., Variable Rate Notes, 12/1/20 (144A) 34,041 2,600,000+(i)(j) St. Andrews Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 12/31/17 51,220 1,750,000+(i)(j) St. Andrews Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 2/1/18 246,050 500,000+(i)(j) St. Andrews Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 2/1/19 517,950 521,395+(i)(j) St. Andrews Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 6/1/19 535,838 500,000+(i)(j) Sunningdale 2017 Segregated Account (Artex SAC, Ltd.), Variable Rate Notes, 1/16/18 490,750 600,000(c) Ursa Re, Ltd., 6.0% (ZERO + 600 bps), 5/27/20 (144A) (Cat Bond) 603,900 3,000,000+(i)(j) Versutus, Ltd. (MMC Securities), Series 2016-A, Variable Rate Notes, 11/30/20 127,800 600,000+(i)(j) Versutus, Ltd. (MMC Securities), Series 2017-A, Variable Rate Notes, 11/30/21 587,580 250,000+(i)(j) Wentworth 2017, Variable Rate Notes, 7/13/18 230,350 ------------- Total Insurance $ 13,395,912 ----------------------------------------------------------------------------------------------------- MATERIALS -- 8.3% Aluminum -- 0.6% 680,000 Constellium NV, 7.875%, 4/1/21 (144A) $ 722,704 3,025,000 Rusal Capital, DAC, 5.125%, 2/2/22 (144A) 3,080,367 ------------- $ 3,803,071 ----------------------------------------------------------------------------------------------------- Commodity Chemicals -- 0.3% 755,000 Evolution Escrow Issuer LLC, 7.5%, 3/15/22 (144A) $ 791,806 1,000,000 Hexion US Finance Corp., 6.625%, 4/15/20 890,000 ------------- $ 1,681,806 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 28 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Construction Materials -- 0.5% 1,900,000 Beacon Escrow Corp., 4.875%, 11/1/25 (144A) $ 1,923,180 EUR 1,200,000 Cemex SAB de CV, 4.75%, 1/11/22 (144A) 1,441,743 ------------- $ 3,364,923 ----------------------------------------------------------------------------------------------------- Copper -- 0.2% 1,150,000 Freeport-McMoRan, Inc., 3.55%, 3/1/22 $ 1,138,500 ----------------------------------------------------------------------------------------------------- Diversified Chemicals -- 1.9% EUR 625,000 Avantor, Inc., 4.75%, 10/1/24 $ 742,694 EUR 2,015,000 Axalta Coating Systems LLC, 4.25%, 8/15/24 (144A) 2,529,944 460,000 Blue Cube Spinco, Inc., 9.75%, 10/15/23 546,250 3,365,000 CF Industries, Inc., 3.45%, 6/1/23 3,322,938 EUR 1,138,000 INEOS Finance Plc, 4.0%, 5/1/23 (144A) 1,371,859 2,840,000 Koks OAO Via Koks Finance DAC, 7.5%, 5/4/22 (144A) 3,061,088 ------------- $ 11,574,773 ----------------------------------------------------------------------------------------------------- Diversified Metals & Mining -- 2.0% 810,000 Ausdrill Finance Pty, Ltd., 6.875%, 11/1/19 (144A) $ 823,162 1,100,000 MMC Norilsk Nickel OJSC via MMC Finance DAC, 5.55%, 10/28/20 (144A) 1,168,420 2,580,000 Nexa Resources SA, 5.375%, 5/4/27 (144A) 2,724,996 860,000 Prince Mineral Holding Corp., 11.5%, 12/15/19 (144A) 887,950 1,218,000 Rain CII Carbon LLC / CII Carbon Corp., 7.25%, 4/1/25 (144A) 1,318,485 1,150,000 Vedanta Resources Plc, 6.375%, 7/30/22 (144A) 1,203,130 500,000 Vedanta Resources Plc, 7.125%, 5/31/23 539,250 3,645,000 Vedanta Resources Plc, 8.25%, 6/7/21 (144A) 4,073,288 ------------- $ 12,738,681 ----------------------------------------------------------------------------------------------------- Forest Products -- 0.3% 2,155,000 Eldorado Intl. Finance GmbH, 8.625%, 6/16/21 (144A) $ 2,203,488 ----------------------------------------------------------------------------------------------------- Gold -- 0.2% 1,150,000 Kinross Gold Corp., 4.5%, 7/15/27 (144A) $ 1,164,375 ----------------------------------------------------------------------------------------------------- Metal & Glass Containers -- 0.9% EUR 700,000(b) ARD Finance SA, 6.625% (7.375% PIK 0.0% cash), 9/15/23 $ 876,344 700,000(b) ARD Finance SA, 7.125% (7.875% PIK 0.0% cash), 9/15/23 745,500 590,000 Ardagh Packaging Finance Plc / Ardagh Holdings USA, Inc., 4.625%, 5/15/23 (144A) 606,225 EUR 410,000 Ardagh Packaging Finance Plc / Ardagh Holdings USA, Inc., 6.75%, 5/15/24 (144A) 534,321 630,000 Ardagh Packaging Finance Plc / Ardagh Holdings USA, Inc., 7.25%, 5/15/24 (144A) 692,213 EUR 725,000 Horizon Holdings I SAS, 7.25%, 8/1/23 (144A) 899,526 EUR 950,000 Verallia Packaging SASU, 5.125%, 8/1/22 (144A) 1,169,695 ------------- $ 5,523,824 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 29 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Silver -- 0.2% 1,040,000 Coeur Mining, Inc., 5.875%, 6/1/24 $ 1,040,000 ----------------------------------------------------------------------------------------------------- Steel -- 1.2% 1,258,000 AK Steel Corp., 6.375%, 10/15/25 $ 1,239,130 715,000 ArcelorMittal, 6.125%, 6/1/25 824,731 2,066,000 BlueScope Steel Finance, Ltd. / BlueScope Steel Finance USA LLC, 6.5%, 5/15/21 (144A) 2,158,970 770,000 Commercial Metals Co., 5.375%, 7/15/27 795,025 1,635,000(h) Samarco Mineracao SA, 4.125%, 11/1/22 (144A) 960,562 670,000 SunCoke Energy Partners LP / SunCoke Energy Partners Finance Corp., 7.5%, 6/15/25 (144A) 701,825 588,000 United States Steel Corp., 6.875%, 8/15/25 596,453 ------------- $ 7,276,696 ------------- Total Materials $ 51,510,137 ----------------------------------------------------------------------------------------------------- MEDIA -- 3.7% Advertising -- 0.2% 1,125,000 MDC Partners, Inc., 6.5%, 5/1/24 (144A) $ 1,147,500 ----------------------------------------------------------------------------------------------------- Broadcasting -- 0.8% 1,650,000 Gray Television, Inc., 5.125%, 10/15/24 (144A) $ 1,645,380 1,970,000 Gray Television, Inc., 5.875%, 7/15/26 (144A) 2,019,250 1,600,000 Sinclair Television Group, Inc., 5.125%, 2/15/27 (144A) 1,522,000 ------------- $ 5,186,630 ----------------------------------------------------------------------------------------------------- Cable & Satellite -- 2.0% 320,000 Altice Financing SA, 6.625%, 2/15/23 (144A) $ 337,312 1,900,000 CCO Holdings LLC / CCO Holdings Capital Corp., 5.125%, 5/1/27 (144A) 1,919,000 1,615,000 CCO Holdings LLC / CCO Holdings Capital Corp., 5.75%, 2/15/26 (144A) 1,688,482 1,075,000 CSC Holdings LLC, 5.5%, 4/15/27 (144A) 1,107,250 2,140,000 DISH DBS Corp., 5.875%, 7/15/22 2,152,048 283,000 Intelsat Connect Finance SA, 12.5%, 4/1/22 (144A) 268,142 186,000 Sirius XM Radio, Inc., 3.875%, 8/1/22 (144A) 189,488 372,000 Sirius XM Radio, Inc., 5.0%, 8/1/27 (144A) 375,255 595,000 Videotron, Ltd., 5.125%, 4/15/27 (144A) 625,494 1,000,000 Videotron, Ltd., 5.375%, 6/15/24 (144A) 1,080,000 EUR 2,300,000 Ziggo Secured Finance BV, 4.25%, 1/15/27 (144A) 2,866,473 ------------- $ 12,608,944 ----------------------------------------------------------------------------------------------------- Movies & Entertainment -- 0.7% GBP 900,000 AMC Entertainment Holdings, Inc., 6.375%, 11/15/24 $ 1,227,748 1,575,000 Netflix, Inc., 4.375%, 11/15/26 (144A) 1,544,484 EUR 1,125,000 WMG Acquisition Corp., 4.125%, 11/1/24 (144A) 1,389,787 ------------- $ 4,162,019 ------------- Total Media $ 23,105,093 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 30 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 1.8% Pharmaceuticals -- 1.8% 2,271,000 Endo Finance LLC / Endo Finco, Inc., 5.375%, 1/15/23 (144A) $ 1,828,155 750,000 Horizon Pharma, Inc., 6.625%, 5/1/23 738,750 225,000 Horizon Pharma, Inc. / Horizon Pharma USA, Inc., 8.75%, 11/1/24 (144A) 235,687 EUR 3,475,000 Valeant Pharmaceuticals International, Inc., 4.5%, 5/15/23 3,438,730 EUR 1,540,000 Valeant Pharmaceuticals International, Inc., 4.5%, 5/15/23 (144A) 1,523,926 2,062,000 Valeant Pharmaceuticals International, Inc., 5.875%, 5/15/23 (144A) 1,742,390 565,000 Valeant Pharmaceuticals International, Inc., 6.5%, 3/15/22 (144A) 598,900 755,000 Valeant Pharmaceuticals International, Inc., 7.0%, 3/15/24 (144A) 817,288 350,000 West Street Merger Sub, Inc., 6.375%, 9/1/25 (144A) 354,813 ------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 11,278,639 ----------------------------------------------------------------------------------------------------- REAL ESTATE -- 1.1% Diversified REIT -- 0.2% EUR 1,120,000 Globalworth Real Estate Investments, Ltd., 2.875%, 6/20/22 $ 1,337,783 ----------------------------------------------------------------------------------------------------- Specialized REITs -- 0.9% 919,000 Equinix, Inc., 5.375%, 4/1/23 $ 948,868 2,000,000 Iron Mountain, Inc., 4.875%, 9/15/27 (144A) 2,025,620 2,870,000 Uniti Group LP / Uniti Group Finance, Inc. / CSL Capital LLC, 6.0%, 4/15/23 (144A) 2,873,587 ------------- $ 5,848,075 ------------- Total Real Estate $ 7,185,858 ----------------------------------------------------------------------------------------------------- RETAILING -- 1.1% Department Stores -- 0.5% 1,800,000 Grupo Kaltex SA de CV, 8.875%, 4/11/22 (144A) $ 1,689,750 EUR 1,025,000 Takko Lux 2 SCA, 5.375%, 11/15/23 1,194,973 ------------- $ 2,884,723 ----------------------------------------------------------------------------------------------------- Distributors -- 0.2% 1,250,000 LKQ Corp., 4.75%, 5/15/23 $ 1,284,375 ----------------------------------------------------------------------------------------------------- Specialty Stores -- 0.4% 1,030,000 PetSmart, Inc., 5.875%, 6/1/25 (144A) $ 898,675 2,285,000 PetSmart, Inc., 7.125%, 3/15/23 (144A) 1,742,312 ------------- $ 2,640,987 ------------- Total Retailing $ 6,810,085 ----------------------------------------------------------------------------------------------------- SOFTWARE & SERVICES -- 2.6% Application Software -- 0.2% 1,430,000 Open Text Corp., 5.875%, 6/1/26 (144A) $ 1,549,762 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 31 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Data Processing & Outsourced Services -- 1.4% EUR 1,250,000 Alliance Data Systems Corp., 4.5%, 3/15/22 (144A) $ 1,521,056 1,765,000 Alliance Data Systems Corp., 5.875%, 11/1/21 (144A) 1,826,775 3,100,000 Cardtronics, Inc., 5.125%, 8/1/22 3,162,000 610,000 Cardtronics, Inc. / Cardtronics USA, Inc., 5.5%, 5/1/25 (144A) 606,950 1,260,000 First Data Corp., 7.0%, 12/1/23 (144A) 1,348,225 ------------- $ 8,465,006 ----------------------------------------------------------------------------------------------------- Internet Software & Services -- 0.4% 1,780,000 Cimpress NV, 7.0%, 4/1/22 (144A) $ 1,853,425 551,000 IAC / InterActiveCorp, 4.875%, 11/30/18 551,937 ------------- $ 2,405,362 ----------------------------------------------------------------------------------------------------- IT Consulting & Other Services -- 0.6% 795,000 Change Healthcare Holdings LLC / Change Healthcare Finance, Inc., 5.75%, 3/1/25 (144A) $ 812,888 735,000 Dell International LLC / EMC Corp., 5.875%, 6/15/21 (144A) 769,749 410,000 j2 Cloud Services LLC / j2 Global Co-Obligor, Inc., 6.0%, 7/15/25 (144A) 431,525 1,455,000 Rackspace Hosting, Inc., 8.625%, 11/15/24 (144A) 1,532,297 ------------- $ 3,546,459 ------------- Total Software & Services $ 15,966,589 ----------------------------------------------------------------------------------------------------- TECHNOLOGY HARDWARE & EQUIPMENT -- 1.5% Communications Equipment -- 0.4% 2,221,000 Avaya, Inc., 7.0%, 4/1/19 (144A) $ 1,865,640 512,000 CommScope Technologies LLC, 6.0%, 6/15/25 (144A) 540,800 ------------- $ 2,406,440 ----------------------------------------------------------------------------------------------------- Electronic Components -- 0.9% EUR 1,505,000 Belden, Inc., 2.875%, 9/15/25 (144A) $ 1,757,656 EUR 815,000 Belden, Inc., 3.375%, 7/15/27 (144A) 970,838 EUR 250,000 Belden, Inc., 4.125%, 10/15/26 (144A) 313,531 1,000,000 Belden, Inc., 5.25%, 7/15/24 (144A) 1,040,000 EUR 1,095,000 Belden, Inc., 5.5%, 4/15/23 (144A) 1,339,586 ------------- $ 5,421,611 ----------------------------------------------------------------------------------------------------- Electronic Manufacturing Services -- 0.1% 450,000 TTM Technologies, Inc., 5.625%, 10/1/25 (144A) $ 459,000 ----------------------------------------------------------------------------------------------------- Technology Hardware, Storage & Peripherals -- 0.1% 910,000 Diebold Nixdorf, Inc., 8.5%, 4/15/24 $ 956,637 ------------- Total Technology Hardware & Equipment $ 9,243,688 ----------------------------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 6.3% Integrated Telecommunication Services -- 1.7% 1,000,000 CB Escrow Corp., 8.0%, 10/15/25 (144A) $ 1,032,500 2,260,000 CenturyLink, Inc., 5.625%, 4/1/25 2,203,500 5,075,000 Frontier Communications Corp., 8.75%, 4/15/22 4,180,531 The accompanying notes are an integral part of these financial statements. 32 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Integrated Telecommunication Services (continued) 1,665,000 GCI, Inc., 6.875%, 4/15/25 $ 1,802,363 2,125,000 Windstream Services LLC, 7.75%, 10/1/21 1,604,375 ------------- $ 10,823,269 ----------------------------------------------------------------------------------------------------- Wireless Telecommunication Services -- 4.6% 2,800,000 Altice Financing SA, 6.5%, 1/15/22 (144A) $ 2,898,000 600,000 Altice Finco SA, 8.125%, 1/15/24 (144A) 646,572 3,320,000 Digicel, Ltd., 6.0%, 4/15/21 (144A) 3,265,751 1,770,000 Millicom International Cellular SA, 5.125%, 1/15/28 (144A) 1,779,027 4,825,000 MTN Mauritius Investment, Ltd., 5.373%, 2/13/22 (144A) 4,966,131 4,235,000 Sprint Corp., 7.25%, 9/15/21 4,616,150 1,155,000 T-Mobile USA, Inc., 6.0%, 4/15/24 1,235,850 2,750,000 Unison Ground Lease Funding LLC, 5.78%, 3/15/20 (144A) 2,731,653 RUB 124,400,000 VEON Holdings BV, 9.0%, 2/13/18 (144A) 2,132,909 EUR 1,455,000 Wind Tre SpA, 2.625%, 1/20/23 (144A) 1,702,703 EUR 1,972,000 Wind Tre SpA, 3.125%, 1/20/25 (144A) 2,304,272 ------------- $ 28,279,018 ------------- Total Telecommunication Services $ 39,102,287 ----------------------------------------------------------------------------------------------------- TRANSPORTATION -- 2.1% Airlines -- 0.7% 860,000 DAE Funding LLC, 5.0%, 8/1/24 (144A) $ 878,275 1,062,576 Guanay Finance, Ltd., 6.0%, 12/15/20 (144A) 1,094,549 325,000 Intrepid Aviation Group Holdings LLC / Intrepid Finance Co., 6.875%, 2/15/19 (144A) 320,937 1,585,000 Latam Finance, Ltd., 6.875%, 4/11/24 (144A) 1,676,138 ------------- $ 3,969,899 ----------------------------------------------------------------------------------------------------- Airport Services -- 0.2% 370,000 Aeropuertos Argentina 2000 SA, 6.875%, 2/1/27 (144A) $ 398,675 525,000 Aeropuertos Dominicanos Siglo XXI SA, 6.75%, 3/30/29 (144A) 569,625 ------------- $ 968,300 ----------------------------------------------------------------------------------------------------- Highways & Railtracks -- 0.6% MXN 37,000,000 Red de Carreteras de Occidente SAPIB de CV, 9.0%, 6/10/28 (144A) $ 1,885,912 1,820,000 Rumo Luxembourg S.a.r.l., 7.375%, 2/9/24 (144A) 1,982,890 ------------- $ 3,868,802 ----------------------------------------------------------------------------------------------------- Marine -- 0.6% 2,100,000(h) Far East Capital, Ltd., SA, 8.0%, 5/2/18 $ 1,646,400 2,225,000 Navios South American Logistics, Inc. / Navios Logistics Finance US, Inc., 7.25%, 5/1/22 (144A) 2,180,500 ------------- $ 3,826,900 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 33 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Trucking -- 0.0%+ 2,952,182(h) Inversiones Alsacia SA, 8.0%, 12/31/18 (144A) $ 73,805 ------------- Total Transportation $ 12,707,706 ----------------------------------------------------------------------------------------------------- UTILITIES -- 4.0% Electric Utilities -- 1.7% 459,000 AES Corp., 5.125%, 9/1/27 $ 471,163 EUR 1,225,000 ContourGlobal Power Holdings SA, 5.125%, 6/15/21 (144A) 1,500,008 1,325,000(e)(g) Electricite de France SA, 5.25% (USD Swap Rate + 371 bps) (144A) 1,379,656 2,395,000(g) Enel S.p.A., 8.75% (5 Year USD Swap Rate + 588 bps), 9/24/73 (144A) 2,957,825 390,000 NextEra Energy Operating Partners LP, 4.25%, 9/15/24 (144A) 393,900 725,000 Stoneway Capital Corp., 10.0%, 3/1/27 (144A) 764,875 137,000 Talen Energy Supply LLC, 4.625%, 7/15/19 (144A) 138,713 2,715,000 TerraForm Global Operating LLC, 9.75%, 8/15/22 (144A) 3,006,863 ------------- $ 10,613,003 ----------------------------------------------------------------------------------------------------- Gas Utilities -- 0.7% 2,133,000 DCP Midstream Operating LP, 5.6%, 4/1/44 $ 2,037,015 2,175,000 Ferrellgas LP / Ferrellgas Finance Corp., 6.75%, 6/15/23 2,022,750 ------------- $ 4,059,765 ----------------------------------------------------------------------------------------------------- Independent Power Producers & Energy Traders -- 1.6% 1,195,000 Calpine Corp., 5.25%, 6/1/26 (144A) $ 1,196,494 2,529,000 Calpine Corp., 5.75%, 1/15/25 2,402,550 2,213,000 Dynegy, Inc., 8.0%, 1/15/25 (144A) 2,417,702 940,000 Instituto Costarricense de Electricidad, 6.95%, 11/10/21 (144A) 1,028,360 600,000 NRG Energy, Inc., 6.25%, 5/1/24 637,500 1,705,000 NRG Energy, Inc., 6.625%, 1/15/27 1,815,825 205,000 NRG Energy, Inc., 7.25%, 5/15/26 222,169 205,000(a) TerraForm Power Operating LLC, 6.375%, 2/1/23 (144A) 214,738 ------------- $ 9,935,338 ------------- Total Utilities $ 24,608,106 ----------------------------------------------------------------------------------------------------- TOTAL CORPORATE BOND (Cost $483,357,901) $ 494,677,200 ----------------------------------------------------------------------------------------------------- U.S. GOVERNMENT AND AGENCY OBLIGATIONS -- 2.7% of Net Assets 4,215,000(k) U.S. Treasury Bill, 11/2/17 $ 4,214,893 3,060,000(k) U.S. Treasury Bill, 11/9/17 3,059,363 6,240,000(k) U.S. Treasury Bill, 11/16/17 6,237,504 3,100,000(k) U.S. Treasury Bill, 11/24/17 3,098,074 ------------- $ 16,609,834 ----------------------------------------------------------------------------------------------------- TOTAL U.S GOVERNMENT AND AGENCY OBLIGATIONS (Cost $16,609,881) $ 16,609,834 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 34 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- FOREIGN GOVERNMENT BONDS -- 6.9% of Net Assets Argentina -- 2.1% 1,125,000 Argentine Republic Government International Bond, 6.875%, 1/26/27 $ 1,226,250 1,850,000 Argentine Republic Government International Bond, 7.5%, 4/22/26 2,090,500 2,650,000 City of Buenos Aires Argentina, 7.5%, 6/1/27 (144A) 2,960,395 752,032 Province of Salta Argentina, 9.5%, 3/16/22 (144A) 804,674 500,000 Provincia de Buenos Aires, 9.95%, 6/9/21 (144A) 581,325 1,840,000 Provincia de Entre Rios Argentina, 8.75%, 2/8/25 (144A) 1,991,800 3,015,000 Provincia del Chubut Argentina, 7.75%, 7/26/26 (144A) 3,181,669 ------------- $ 12,836,613 ----------------------------------------------------------------------------------------------------- Bahrain -- 0.4% 2,200,000 Bahrain Government International Bond, 7.0%, 10/12/28 (144A) $ 2,260,632 ----------------------------------------------------------------------------------------------------- Cayman Islands -- 0.2% 1,350,000 Brazil Minas SPE via State of Minas Gerais, 5.333%, 2/15/28 (144A) $ 1,373,625 ----------------------------------------------------------------------------------------------------- Cote D'Ivoire -- 0.1% EUR 725,000 Ivory Coast Government International Bond, 5.125%, 6/15/25 (144A) $ 892,161 ----------------------------------------------------------------------------------------------------- Ecuador -- 0.4% 1,931,000 Ecuador Government International Bond, 8.875%, 10/23/27 (144A) $ 1,975,627 560,000 Ecuador Government International Bond, 10.5%, 3/24/20 (144A) 607,600 ------------- $ 2,583,227 ----------------------------------------------------------------------------------------------------- Egypt -- 1.1% 1,440,000 Egypt Government International Bond, 7.5%, 1/31/27 (144A) $ 1,596,370 EGP 67,975,000(k) Egypt Treasury Bill, 3/6/18 3,623,876 EGP 20,550,000(k) Egypt Treasury Bill, 5/15/18 1,060,336 ------------- $ 6,280,582 ----------------------------------------------------------------------------------------------------- Gabon -- 0.1% 690,000 Gabon Government International Bond, 6.375%, 12/12/24 (144A) $ 676,310 ----------------------------------------------------------------------------------------------------- Honduras -- 0.2% 925,000 Honduras Government International Bond, 6.25%, 1/19/27 (144A) $ 997,492 ----------------------------------------------------------------------------------------------------- Ireland -- 0.2% 925,000 Vnesheconombank Via VEB Finance Plc, 6.902%, 7/9/20 (144A) $ 1,002,027 ----------------------------------------------------------------------------------------------------- Jordan -- 0.1% 900,000 Jordan Government International Bond, 5.75%, 1/31/27 (144A) $ 900,000 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 35 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- Kenya -- 0.3% 1,535,000 Kenya Government International Bond, 5.875%, 6/24/19 (144A) $ 1,582,892 ----------------------------------------------------------------------------------------------------- Mexico -- 0.3% MXN 42,200,388 Mexican Udibonos, 2.0%, 6/9/22 $ 2,087,686 ----------------------------------------------------------------------------------------------------- Nigeria -- 0.3% 1,845,000 Africa Finance Corp., 4.375%, 4/29/20 (144A) $ 1,907,815 ----------------------------------------------------------------------------------------------------- Oman -- 0.3% 1,760,000 Oman Government International Bond, 5.375%, 3/8/27 (144A) $ 1,806,439 ----------------------------------------------------------------------------------------------------- Senegal -- 0.3% 1,800,000 Senegal Government International Bond, 6.25%, 5/23/33 (144A) $ 1,860,570 ----------------------------------------------------------------------------------------------------- Sri Lanka -- 0.3% 1,729,000 Sri Lanka Government International Bond, 6.2%, 5/11/27 (144A) $ 1,837,491 ----------------------------------------------------------------------------------------------------- Uruguay -- 0.2% UYU 37,635,000 Uruguay Government International Bond, 9.875%, 6/20/22 (144A) $ 1,370,106 ----------------------------------------------------------------------------------------------------- TOTAL FOREIGN GOVERNMENT BOND (Cost $41,434,980) $ 42,255,668 ----------------------------------------------------------------------------------------------------- SENIOR SECURED FLOATING RATE LOAN INTERESTS -- 3.0% of Net Assets*(c) AUTOMOBILES & COMPONENTS -- 0.0%+ Auto Parts & Equipment -- 0.0%+ 1,764 Allison Transmission, Inc., Term Loan B-3, 3.25% (LIBOR + 200 bps), 9/23/22 $ 1,776 ------------- Total Automobiles & Components $ 1,776 ----------------------------------------------------------------------------------------------------- CAPITAL GOODS -- 0.3% Aerospace & Defense -- 0.3% 1,845,711 DynCorp International Inc., Term Loan B2, 7.75% (LIBOR + 600 bps), 7/7/20 $ 1,854,556 ------------- Total Capital Goods $ 1,854,556 ----------------------------------------------------------------------------------------------------- COMMERCIAL SERVICES & SUPPLIES -- 0.1% Diversified Support Services -- 0.1% 487,041 IAP Worldwide Services, Inc., Second Lien Term Loan, 8.0% (LIBOR + 650 bps), 7/18/19 $ 485,824 ------------- Total Commercial Services & Supplies $ 485,824 ----------------------------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 0.5% Other Diversified Financial Services -- 0.5% 3,030,000 Commonwealth of The Bahamas, First Lien Term Loan, 5.266% (LIBOR + 375 bps), 9/30/19 $ 3,030,000 ------------- Total Diversified Financials $ 3,030,000 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 36 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- ENERGY -- 0.4% Coal & Consumable Fuels -- 0.0%+ 994,608(h) PT Bakrie & Brothers TBK, Facility B Term Loan, 8.125%, 1/13/18 $ 104,434 ----------------------------------------------------------------------------------------------------- Oil & Gas Drilling -- 0.4% 1,950,000 Gavilan Resources LLC, Second Lien Initial Term Loan, 7.238% (LIBOR + 600 bps), 3/1/24 $ 1,901,250 650,000(l) Traverse Midstream Partners LLC, Advance Term Loan, 9/27/24 660,644 ------------- $ 2,561,894 ------------- Total Energy $ 2,666,328 ----------------------------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 0.3% Health Care Services -- 0.1% 875,000 Alliance HealthCare Services, Inc., First Lien Initial Term Loan, 5.88% (LIBOR + 450 bps), 10/24/23 $ 878,281 ----------------------------------------------------------------------------------------------------- Managed Health Care -- 0.2% 591,387(h) MMM Holdings, Inc., MMM Term Loan, 10.25% (LIBOR + 875 bps), 6/30/19 $ 579,559 429,935(h) MSO of Puerto Rico, Inc., MSO Term Loan, 10.25% (LIBOR + 875 bps), 6/30/19 421,337 ------------- $ 1,000,896 ------------- Total Health Care Equipment & Services $ 1,879,177 ----------------------------------------------------------------------------------------------------- HOUSEHOLD & PERSONAL PRODUCTS -- 0.3% Personal Products -- 0.3% 2,558,832 Revlon Consumer Products Corp., Initial Term Loan B, 4.742% (LIBOR + 350 bps), 9/7/23 $ 2,218,188 ------------- Total Household & Personal Products $ 2,218,188 ----------------------------------------------------------------------------------------------------- MATERIALS -- 0.6% Paper Packaging -- 0.3% 1,606,925 Caraustar Industries, Inc., Refinancing Term Loan, 6.833% (LIBOR + 550 bps), 3/14/22 $ 1,622,324 ----------------------------------------------------------------------------------------------------- Steel -- 0.3% 1,975,075 Zekelman Industries, Inc. (fka JMC Steel Group, Inc.), Term Loan, 4.073% (LIBOR + 275 bps), 6/14/21 $ 1,988,124 ------------- Total Materials $ 3,610,448 ----------------------------------------------------------------------------------------------------- RETAILING -- 0.4% Automotive Retail -- 0.2% 1,391,818 CWGS Group LLC, Term Loan, 4.238% (LIBOR + 375/400 bps + bps), 11/8/23 $ 1,406,025 ----------------------------------------------------------------------------------------------------- Specialty Stores -- 0.2% 1,000,000 Staples, Inc., Closing Date Term Loan, 5.31% (LIBOR + 400 bps), 9/12/24 $ 945,795 ------------- Total Retailing $ 2,351,820 ----------------------------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 37 Schedule of Investments | 10/31/17 (continued) ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- UTILITIES -- 0.1% Electric Utilities -- 0.1% 162,500 Vistra Operations Co., LLC (fka Tex Operations Co., LLC), Initial Term C Loan, 4.084% (LIBOR + 275 bps), 8/4/23 $ 163,212 707,156 Vistra Operations Co., LLC (fka Tex Operations Co., LLC), Initial Term Loan, 4.011% (LIBOR + 275 bps), 8/4/23 710,250 ------------- Total Utilities $ 873,462 ----------------------------------------------------------------------------------------------------- TOTAL SENIOR SECURED FLOATING RATE LOAN INTEREST (Cost $19,706,898) $ 18,971,579 ----------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------- Shares ----------------------------------------------------------------------------------------------------- RIGHT / WARRANTS -- 0.0%+ of Net Assets ENERGY -- 0.0% Coal & Consumable Fuels -- 0.0%+ 61(d)(m) Contura Energy, Inc. $ 1,403 ----------------------------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 0.0%+ 7,415(d)(n) Midstates Petroleum Co., Inc. $ -- ------------- Total Energy $ 1,403 ----------------------------------------------------------------------------------------------------- MATERIALS -- 0.0%+ Steel -- 0.0%+ 318,254(d) ANR, Inc. $ 2,546 ------------- Total Materials $ 2,546 ----------------------------------------------------------------------------------------------------- TOTAL RIGHT / WARRANTS (Cost $36,831) $ 3,949 ----------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) ----------------------------------------------------------------------------------------------------- TEMPORARY CASH INVESTMENTS -- 1.2% of Net Assets COMMERCIAL PAPER -- 0.2% 1,505,000 Natixis NY, 1.08%, 11/1/17 $ 1,504,951 ----------------------------------------------------------------------------------------------------- REPURCHASE AGREEMENTS -- 1.0% 2,280,000 $2,280,000 ScotiaBank, 1.05%, dated 10/31/17 plus accrued interest on 11/1/17, collateralized by the following: $1,588 Freddie Mac Giant, 3.0%, 8/1/29 $1,475 Federal National Mortgage Association, 3.0%, 11/1/26 $2,322,606 Government National Mortgage Association, 3.0% -- 3.5%, 11/20/45 -- 3/20/47. $ 2,280,000 1,400,000 $1,400,000 TD Securities USA LLC, 1.03%, dated 10/31/17 plus accrued interest on 11/1/17, collateralized by the following: $1,428,053 U.S. Treasury Note, 1.875% -- 3.375%, 7/31/22 -- 4/15/32. 1,400,000 The accompanying notes are an integral part of these financial statements. 38 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ----------------------------------------------------------------------------------------------------- Principal Amount USD ($) Value ----------------------------------------------------------------------------------------------------- REPURCHASE AGREEMENTS (continued) 1,400,000 $1,400,000 TD Securities USA LLC, 1.05%, dated 10/31/17 plus accrued interest on 11/1/17, collateralized by the following: $1,428,053 U.S. Treasury Notes, 1.875% -- 3.375%, 7/31/22 -- 4/15/32. $ 1,400,000 1,150,000 $1,150,000 RBC Capital Markets LLC, 1.03%, dated 10/31/17 plus accrued interest on 11/1/17, collateralized by the following: $1,032 Freddie Mac Giant, 3.5%, 11/1/47 $92,731 Federal National Mortgage Association, 3.5% -- 4.0%, 11/1/31 -- 6/1/47 $1,079,237 Government National Mortgage Association, 4.0%, 3/20/47. $ 1,150,000 ------------- $ 6,230,000 ----------------------------------------------------------------------------------------------------- TOTAL TEMPORARY CASH INVESTMENTS (Cost $7,735,000) $ 7,734,951 ----------------------------------------------------------------------------------------------------- ----------------------------------------------------------------------------------------------------- Number of Strike Expiration Contracts Description Counterparty Notional Price Date Value ----------------------------------------------------------------------------------------------------- CALL OPTIONS PURCHASED -- 0.0%+ MXN 297,012(m) Desarrolladora Bank of Homex New York SAB de CV Mellon Corp. $-- $--(o) 10/23/22 $ -- MXN 297,012(n) Desarrolladora Bank of Homex New York SAB de CV Mellon Corp. -- --(o) 10/23/22 -- ------------- $ -- ----------------------------------------------------------------------------------------------------- TOTAL CALL OPTION PURCHASED (Premium paid $0) $ -- ----------------------------------------------------------------------------------------------------- TOTAL INVESTMENTS IN UNAFFILIATED ISSUERS -- 98.7% (Cost -- $612,829,503) $ 611,278,339 ----------------------------------------------------------------------------------------------------- OTHER ASSETS AND LIABILITIES -- 1.3% $ 7,872,657 ----------------------------------------------------------------------------------------------------- NET ASSETS -- 100.0% $ 619,150,996 ===================================================================================================== BPS Basis Point. LIBOR London Interbank Offered Rate. ZERO Zero Constant Index. REIT Real Estate Investment Trust. (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 October 31, 2017, the value of these securities amounted to $351,565,700, or 56.8% of total net assets. (Cat Bond) Catastrophe or event-linked bond. At October 31, 2017, the value of these securities amounted to $3,822,895, or 0.6% of total net assets. See Notes to Financial Statements -- Note 1H. The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 39 Schedule of Investments | 10/31/17 (continued) + Amount rounds to less than 0.1%. * Senior secured floating rate loan interests in which the Trust 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, (ii) the prime rate offered by one or more major United States banks, (iii) the rate of a certificate of deposit or (iv) other base lending rates used by commercial lenders. The interest rate shown is the rate accruing at October 31, 2017. + Securities that used significant unobservable inputs to determine their value. (a) Debt obligation initially issued at one coupon which converts to a higher coupon at a specific date. The rate shown is the rate at October 31, 2017. (b) Payment in Kind (PIK) security which may pay interest in the form of additional principal amount. (c) Floating rate note. The coupon rate, reference index and spread shown at October 31, 2017. (d) Non-income producing. (e) Security is perpetual in nature and has no stated maturity date. (f) Security is valued using fair value methods (other than prices supplied by independent pricing services). (g) The interest rate is subject to change periodically. The interest rate, reference index and spread shown at October 31, 2017. (h) Security is in default. (i) Structured reinsurance investment. At October 31, 2017, the value of these securities amounted to $9,573,017, or 1.6% of total net assets. See Notes to Financial Statements -- Note 1H. (j) Rate to be determined. (k) Security issued with a zero coupon. Income is recognized through accretion of discount. (l) This term loan will settle after October 31, 2017, at which time the interest rate will be determined. (m) Option does not become effective until underlying company's outstanding common shares reach a market capitalization of MXN 12.5 Billion. (n) Option does not become effective until underlying company's outstanding common shares reach a market capitalization of MXN 15.5 Billion. (o) Strike price is 1 Mexican Peso (MXN). The accompanying notes are an integral part of these financial statements. 40 Pioneer Global High Yield Fund | Annual Report | 10/31/17 SWAP CONTRACTS CENTRALLY CLEARED CREDIT DEFAULT SWAP CONTRACTS ----------------------------------------------------------------------------------------------- Obligation Annual Premiums Notional Reference/ Pay/ Fixed Expiration Paid/ Unrealized Market Amount ($)(1) Index Receive(2) Rate Date (Received) Appreciation Value ----------------------------------------------------------------------------------------------- 4,282,550 Markit CDX Pay 5.00% 12/20/20 $ (33,023) $374,301 $341,278 North America High Yield Index Series 25 3,243,800 Markit CDX Pay 5.00% 6/20/21 139,613 166,424 306,037 North America High Yield Index Series 26 ----------------------------------------------------------------------------------------------- $106,590 $540,725 $647,315 =============================================================================================== CREDIT DEFAULT SWAP CONTRACTS - SELL PROTECTION OVER THE COUNTER (OTC) -------------------------------------------------------------------------------------------------------------- Obligation Annual Notional Reference/ Pay/ Fixed Expiration Premiums Unrealized Market Amount ($)(1) Counterparty Index Receive(2) Rate Date (Received) Appreciation Value -------------------------------------------------------------------------------------------------------------- 690,000 Goldman Sachs Chesapeake Pay 5.00% 6/20/22 $ (77,625) $ 41,601 $ (36,024) International Energy Corp. Bank 415,000 Goldman Sachs Chesapeake Pay 5.00% 6/20/22 (50,837) 29,170 (21,667) International Energy Corp. Bank 650,000 Goldman Sachs Chesapeake Pay 5.00% 6/20/22 (79,625) 45,689 (33,936) International Energy Corp. Bank -------------------------------------------------------------------------------------------------------------- $(208,087) $ 116,460 $ (91,627) -------------------------------------------------------------------------------------------------------------- TOTAL SWAPS CONTRACTS $(101,497) $ 657,185 $ 555,688 ============================================================================================================== (1) The notional amount is the maximum amount that a seller of credit protection would be obligated to pay upon occurrence of a credit event. (2) Pays Quarterly The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 41 Schedule of Investments | 10/31/17 (continued) FORWARD FOREIGN CURRENCY CONTRACTS -------------------------------------------------------------------------------------------------- Net In Unrealized Currency Exchange Currency Settlement Appreciation Purchased for Sold Deliver Counterparty Date (Depreciation) -------------------------------------------------------------------------------------------------- USD 6,696,917 INR 431,482,360 Goldman Sachs 11/09/17 $ 39,266 International Bank PHP 80,225,000 USD 1,586,101 Goldman Sachs 11/03/17 (31,323) International Bank USD 1,569,654 PHP 80,225,000 JPMorgan Chase 11/03/17 14,875 Bank NA USD 8,428,620 EUR 7,254,757 State Street 11/30/17 (36,239) Bank & Trust Co. EUR 805,000 USD 934,727 State Street 11/30/17 4,548 Bank & Trust Co. -------------------------------------------------------------------------------------------------- TOTAL FORWARD FOREIGN CURRENCY CONTRACTS $ (8,873) ================================================================================================== Principal amounts are denominated in U.S. dollars unless otherwise noted. ARS Argentine Peso AUD Australian Dollar EGP Egyptian Pound EUR Euro GBP Great Britain Pound INR Indian Rupee MXN Mexican Peso PHP Philippine Peso RUB Russian Ruble USD United States Dollar UYU Uruguayan Peso Purchases and sales of securities (excluding temporary cash investments) for the year ended October 31, 2017 were as follows: -------------------------------------------------------------------------------- Purchases Sales -------------------------------------------------------------------------------- Long-Term U.S. Government $ -- $ -- Other Long-Term Securities $ 322,967,662 $ 413,437,151 The Fund is permitted to engage in purchase and sale transactions (cross trades) with certain funds and accounts for which Amundi Pioneer Asset Management, Inc. (the "Adviser"), serves as the investment adviser, as set forth in Rule 17a-7 under the Investment Company Act of 1940, pursuant to procedures adopted by the Board of Trustees. Under these procedures, cross trades are effected at current market prices. During the year ended October 31, 2017, the Fund engaged in purchases and sales pursuant to these procedures amounting to $16,479,557 and $13,529,133, respectively resulting in a gain of $499,504. The accompanying notes are an integral part of these financial statements. 42 Pioneer Global High Yield Fund | Annual Report | 10/31/17 At October 31, 2017, the net unrealized depreciation on investments based on cost for federal tax purposes of $615,365,567 was as follows: Aggregate gross unrealized appreciation for all investments in which there is an excess of value over tax cost $ 29,645,404 Aggregate gross unrealized depreciation for all investments in which there is an excess of tax cost over value (33,185,817) ------------- Net unrealized depreciation $ (3,540,413) ============= Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels 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 risks, 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. The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 43 Schedule of Investments | 10/31/17 (continued) The following is a summary of the inputs used as of October 31, 2017, in valuing the Fund's investments. ---------------------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total ---------------------------------------------------------------------------------------------- Convertible Corporate Bonds $ -- $ 10,423,093 $ -- $ 10,423,093 Preferred Stock 2,545,224 -- -- 2,545,224 Convertible Preferred Stocks 4,746,944 -- -- 4,746,944 Common Stocks Capital Goods Industrial Machinery -- -- 1,560 1,560 Energy Oil & Gas Exploration & Production 1,205,412 -- 1,233,056 2,438,468 Transportation Air Freight & Logistics -- -- 2,029,787 2,029,787 All Other Common Stocks 648,009 -- -- 648,009 Asset Backed Security -- 460,345 -- 460,345 Collateralized Mortgage Obligations -- 7,731,728 -- 7,731,728 Corporate Bonds Insurance Reinsurance -- 3,822,895 9,573,017 13,395,912 All Other Corporate Bonds -- 481,281,288 -- 481,281,288 U.S. Government and Agency Obligations -- 16,609,834 -- 16,609,834 Foreign Government Bonds -- 42,255,668 -- 42,255,668 Senior Secured Floating Rate Loan Interests -- 18,971,579 -- 18,971,579 Rights/Warrants -- 3,949 -- 3,949 Commercial Paper -- 1,504,951 -- 1,504,951 Repurchase Agreements -- 6,230,000 -- 6,230,000 Call Options Purchased -- -- -- -- ---------------------------------------------------------------------------------------------- Total Investments in Securities $ 9,145,589 $589,295,330 $ 12,837,420 $611,278,339 ============================================================================================== Other Financial Instruments Net unrealized depreciation on forward foreign currency contracts $ -- $ (8,873) $ -- $ (8,873) Swap contracts, at value -- 555,688 -- 555,688 ---------------------------------------------------------------------------------------------- Total Other Financial Instruments $ -- $ 546,815 $ -- $ 546,815 ============================================================================================== The accompanying notes are an integral part of these financial statements. 44 Pioneer Global High Yield Fund | Annual Report | 10/31/17 The following is a reconciliation of assets valued using significant unobservable inputs (Level 3): ------------------------------------------------------------------------------------------- Convertible Common Corporate Corporate Stocks Bonds Bonds Total ------------------------------------------------------------------------------------------- Balance as of 10/31/16 $ 4,300,699 $ 346,412 $ 27,598,609 $ 32,245,720 Realized gain (loss)(1) (2,417,725) (3,729,029) 73,958 (6,072,796) Change in unrealized appreciation (depreciation)(2) 4,456,055 3,729,029 (1,410,030) 6,775,054 Accrued discounts/premiums -- -- (163,555) (163,555) Purchases 82,105 -- 8,353,166 8,435,271 Sales (4,465,630) (346,412) (24,879,131) (29,691,173) Transfers in to Level 3* 1,308,899 -- -- 1,308,899 Transfers out of Level 3* -- -- -- -- ------------------------------------------------------------------------------------------- Balance as of 10/31/17 $ 3,264,403 $ -- $ 9,573,017 $ 12,837,420 =========================================================================================== (1) Realized gain (loss) on these securities is included in the realized gain (loss) on investments in the Statement of Operations. (2) Unrealized appreciation (depreciation) on these securities is included in the change in unrealized appreciation (depreciation) on investments in the Statement of Operations. * Transfers are calculated on the beginning of period values. During the year ended October 31, 2017, investments having a value of $1,308,899 were transferred from Level 2 to Level 3. The change in the level designation within the fair value hierarchy was due to valuing the security using unobservable inputs. There were no other transfers between levels 1, 2 and 3. Net change in unrealized appreciation of Level 3 investments still held and considered Level 3 at October 31, 2017: $ 909,147 --------------- The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 45 Statement of Assets and Liabilities | 10/31/17 ASSETS: Investments in unaffiliated issuers, at value (cost $612,829,503) $ 611,278,339 Cash 1,989,432 Foreign currencies, at value (cost $3,249,977) 3,377,543 Swap contracts, at value (net premiums received $(101,497)) 555,688 Swaps collateral 416,422 Variation margin for centrally cleared swap contracts 7,839 Receivables -- Investment securities sold 3,576,127 Fund shares sold 507,219 Interest 8,296,615 Dividends 2,523 Other assets 33,808 ----------------------------------------------------------------------------------- Total assets $ 630,041,555 =================================================================================== LIABILITIES: Payables -- Investment securities purchased $ 7,522,144 Fund shares repurchased 1,881,686 Distributions 305,325 Trustees' fees 3,162 Due to broker for swap contracts 652,357 Net unrealized depreciation on forward foreign currency contracts 8,873 Due to affiliates 155,536 Accrued expenses 361,476 ----------------------------------------------------------------------------------- Total liabilities $ 10,890,559 =================================================================================== NET ASSETS: Paid-in capital $ 914,494,452 Distributions in excess of net investment income (2,937,133) Accumulated net realized loss on investments (291,668,027) Net unrealized depreciation on investments (738,296) ----------------------------------------------------------------------------------- Net assets $ 619,150,996 =================================================================================== NET ASSET VALUE PER SHARE: No par value (unlimited number of shares authorized) Class A (based on $182,899,791/20,064,419 shares) $ 9.12 Class C (based on $143,587,422/15,794,738 shares) $ 9.09 Class Y (based on $292,663,783/32,699,519 shares) $ 8.95 MAXIMUM OFFERING PRICE: Class A ($9.12 (divided by) 95.5%) $ 9.55 =================================================================================== The accompanying notes are an integral part of these financial statements. 46 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Statement of Operations For the Year Ended 10/31/17 INVESTMENT INCOME: Interest from unaffiliated issuers $ 43,285,570 Dividends from unaffiliated issuers 377,303 ------------------------------------------------------------------------------------------------ Total investment income $ 43,662,873 ------------------------------------------------------------------------------------------------ EXPENSES: Management fees $ 4,371,010 Administrative expense 214,073 Transfer agent fees Class A 243,470 Class C 151,076 Class Y 337,330 Distribution fees Class A 470,417 Class C 1,616,422 Shareholder communications expense 59,608 Custodian fees 94,704 Registration fees 83,006 Professional fees 53,374 Printing expense 44,004 Trustees' fees 26,362 Pricing expense 39,906 Miscellaneous 70,738 ------------------------------------------------------------------------------------------------ Total expenses $ 7,875,500 ------------------------------------------------------------------------------------------------ Net investment income $ 35,787,373 ------------------------------------------------------------------------------------------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS: Net realized gain (loss) on: Investments in unaffiliated issuers $(20,245,522) Swap contracts 273,221 Forward foreign currency contracts (626,800) Other assets and liabilities denominated in foreign currencies (235,393) $(20,834,494) ------------------------------------------------------------------------------------------------ Change in net unrealized appreciation (depreciation) on: Investments in unaffiliated issuers $ 46,673,854 Swap contracts 364,805 Forward foreign currency contracts (312,938) Other assets and liabilities denominated in foreign currencies 149,255 $ 46,874,976 ------------------------------------------------------------------------------------------------ Net realized and unrealized gain (loss) on investments $ 26,040,482 ------------------------------------------------------------------------------------------------ Net increase in net assets resulting from operations $ 61,827,855 ================================================================================================ The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 47 Statements of Changes in Net Assets ---------------------------------------------------------------------------------------- Year Ended Year Ended 10/31/17 10/31/16* ---------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $ 35,787,373 $ 49,164,741 Net realized gain (loss) on investments (20,834,494) (93,291,792) Change in net unrealized appreciation (depreciation) on investments 46,874,976 77,920,640 ---------------------------------------------------------------------------------------- Net increase in net assets resulting from operations $ 61,827,855 $ 33,793,589 ---------------------------------------------------------------------------------------- DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.42 and $0.47 per share, respectively) $ (8,958,026) $ (12,102,966) Class C ($0.35 and $0.41 per share, respectively) (6,590,456) (9,849,973) Class Y ($0.43 and $0.48 per share, respectively) (14,231,124) (20,292,853) Tax return of capital: Class A ($0.05 and $0.04 per share, respectively) (949,283) (1,039,895) Class C ($0.05 and $0.04 per share, respectively) (808,452) (957,019) Class Y ($0.05 and $0.04 per share, respectively) (1,479,883) (1,462,389) ---------------------------------------------------------------------------------------- Total distributions to shareowners $ (33,017,224) $ (45,705,095) ---------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS: Net proceeds from sale of shares $ 127,533,450 $ 107,183,404 Reinvestment of distributions 28,716,717 40,330,239 Cost of shares repurchased (231,073,307) (447,001,020) ---------------------------------------------------------------------------------------- Net decrease in net assets resulting from Fund share transactions $ (74,823,140) (299,487,377) ---------------------------------------------------------------------------------------- Net decrease in net assets $ (46,012,509) $ (311,398,883) NET ASSETS: Beginning of year $ 665,163,505 $ 976,562,388 ---------------------------------------------------------------------------------------- End of year $ 619,150,996 $ 665,163,505 ---------------------------------------------------------------------------------------- Distributions in excess of net investment income $ (2,937,133) $ (2,669,468) ======================================================================================== * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. The accompanying notes are an integral part of these financial statements. 48 Pioneer Global High Yield Fund | Annual Report | 10/31/17 -------------------------------------------------------------------------------------- Year Ended Year Ended Year Ended Year Ended 10/31/17 10/31/17 10/31/16 10/31/16 Shares Amount Shares* Amount* -------------------------------------------------------------------------------------- Class A Shares sold 2,627,008 $ 23,469,846 1,502,404 $ 12,563,258 Reinvestment of distributions 977,107 8,698,460 1,415,368 11,855,334 Less shares repurchased (6,668,959) (59,151,186) (9,210,188) (76,947,782) -------------------------------------------------------------------------------------- Net decrease (3,064,844) $ (26,982,880) (6,292,416) $ (52,529,190) ====================================================================================== Class C Shares sold 572,332 $ 5,052,440 755,257 $ 6,249,038 Reinvestment of distributions 709,708 6,301,947 1,047,555 8,752,547 Less shares repurchased (6,615,650) (58,590,146) (8,203,488) (68,568,704) -------------------------------------------------------------------------------------- Net decrease (5,333,610) $ (47,235,759) (6,400,676) $ (53,567,119) ====================================================================================== Class Y Shares sold 11,357,798 $ 99,011,164 10,732,152 $ 88,371,108 Reinvestment of distributions 1,567,203 13,716,310 2,404,961 19,722,358 Less shares repurchased (13,003,798) (113,331,975) (37,531,165) (301,484,534) -------------------------------------------------------------------------------------- Net decrease (78,797) $ (604,501) (24,394,052) $ (193,391,068) ====================================================================================== * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 49 Financial Highlights ------------------------------------------------------------------------------------------------------------------------------ Year Year Year Year Year Ended Ended Ended Ended Ended 10/31/13 10/31/17 10/31/16* 10/31/15* 10/31/14* (Consolidated) ------------------------------------------------------------------------------------------------------------------------------ Class A Net asset value, beginning of period $ 8.71 $ 8.64 $ 9.79 $ 10.13 $ 10.13 ------------------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income (loss) $ 0.51(a) $ 0.54(a) $ 0.58(a) $ 0.66 $ 0.71 Net realized and unrealized gain (loss) on investments 0.37 0.04(b) (1.19) (0.34) (0.02) ------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.88 $ 0.58 $ (0.61) $ 0.32 $ 0.69 ------------------------------------------------------------------------------------------------------------------------------ Distributions to shareowners: Net investment income $ (0.42) $ (0.47) $ (0.46) $ (0.63) $ (0.69) Tax return of capital (0.05) (0.04) (0.08) (0.03) -- ------------------------------------------------------------------------------------------------------------------------------ Total distributions $ (0.47) $ (0.51) $ (0.54) $ (0.66) $ (0.69) ------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ 0.41 $ 0.07 $ (1.15) $ (0.34) $ -- ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 9.12 $ 8.71 $ 8.64 $ 9.79 $ 10.13 ============================================================================================================================== Total return (c) 10.33% 7.14%(d) (6.36)% 3.16% 6.96% Ratio of net expenses to average net assets 1.18% 1.19% 1.17% 1.13% 1.10% Ratio of net investment income (loss) to average net assets 5.71% 6.50% 6.31% 6.62% 6.97% Portfolio turnover rate 53% 40% 32% 32% 33% Net assets, end of period (in thousands) $182,900 $201,360 $254,056 $373,543 $ 531,829 ============================================================================================================================== * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. (a) The per share data presented above is based on the average shares outstanding for the period presented. (b) The amount shown for a share outstanding does not correspond with the aggregate loss on investments for the period due to the timing of sales and repurchases of shares in relation to fluctuating market values of the investments of the Fund. (c) 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. (d) If the Fund had not recognized gains in the settlement of class action lawsuits during the year ended October 31, 2016, the total return would have been 7.01%. The accompanying notes are an integral part of these financial statements. 50 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ------------------------------------------------------------------------------------------------------------------------------ Year Year Year Year Year Ended Ended Ended Ended Ended 10/31/13 10/31/17 10/31/16* 10/31/15* 10/31/14* (Consolidated) ------------------------------------------------------------------------------------------------------------------------------ Class C Net asset value, beginning of period $ 8.69 $ 8.62 $ 9.76 $ 10.10 $ 10.10 ------------------------------------------------------------------------------------------------------------------------------ Increase (decrease) from investment operations: Net investment income (loss) $ 0.44(a) $ 0.48(a) $ 0.51(a) $ 0.59 $ 0.63 Net realized and unrealized gain (loss) on investments 0.36 0.04(b) (1.17) (0.34) (0.01) ------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) from investment operations $ 0.80 $ 0.52 $ (0.66) $ 0.25 $ 0.62 ------------------------------------------------------------------------------------------------------------------------------ Distributions to shareowners: Net investment income $ (0.35) $ (0.41) $ (0.40) $ (0.56) $ (0.62) Tax return of capital (0.05) (0.04) (0.08) (0.03) -- ------------------------------------------------------------------------------------------------------------------------------ Total distributions $ (0.40) $ (0.45) $ (0.48) $ (0.59) $ (0.62) ------------------------------------------------------------------------------------------------------------------------------ Net increase (decrease) in net asset value $ 0.40 $ 0.07 $ (1.14) $ (0.34) $ -- ------------------------------------------------------------------------------------------------------------------------------ Net asset value, end of period $ 9.09 $ 8.69 $ 8.62 $ 9.76 $ 10.10 ============================================================================================================================== Total return (c) 9.46% 6.40%(d) (6.96)% 2.43% 6.23% Ratio of net expenses to average net assets 1.89% 1.90% 1.87% 1.83% 1.81% Ratio of net investment income (loss) to average net assets 5.01% 5.79% 5.61% 5.91% 6.26% Portfolio turnover rate 53% 40% 32% 32% 33% Net assets, end of period (in thousands) $143,587 $183,542 $237,163 $354,162 $ 420,932 ============================================================================================================================== * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. (a) The per share data presented above is based on the average shares outstanding for the period presented. (b) The amount shown for a share outstanding does not correspond with the aggregate loss on investments for the period due to the timing of sales and repurchases of shares in relation to fluctuating market values of the investments of the Fund. (c) 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. (d) If the Fund had not recognized gains in the settlement of class action lawsuits during the year ended October 31, 2016 the total return would have been 6.28%. The accompanying notes are an integral part of these financial statements. Pioneer Global High Yield Fund | Annual Report | 10/31/17 51 Financial Highlights (continued) ----------------------------------------------------------------------------------------------------------------------------- Year Year Year Year Year Ended Ended Ended Ended Ended 10/31/13 10/31/17 10/31/16* 10/31/15* 10/31/14* (Consolidated) ----------------------------------------------------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 8.55 $ 8.49 $ 9.62 $ 9.96 $ 9.96 ----------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.52(a) $ 0.57(a) $ 0.60(a) $ 0.67 $ 0.72 Net realized and unrealized gain (loss) on investments 0.36 0.01(b) (1.17) (0.33) (0.01) ----------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ 0.88 $ 0.58 $ (0.57) $ 0.34 $ 0.71 ----------------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income $ (0.43) $ (0.48) $ (0.48) $ (0.65) $ (0.71) Tax return of capital (0.05) (0.04) (0.08) (0.03) -- ----------------------------------------------------------------------------------------------------------------------------- Total distributions $ (0.48) $ (0.52) $ (0.56) $ (0.68) $ (0.71) ----------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ 0.40 $ 0.06 $ (1.13) $ (0.34) $ -- ----------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 8.95 $ 8.55 $ 8.49 $ 9.62 $ 9.96 ============================================================================================================================= Total return (c) 10.60% 7.34% (6.08)% 3.40% 7.27% Ratio of net expenses to average net assets 0.91% 0.90% 0.87% 0.84% 0.82% Ratio of net investment income (loss) to average net assets 5.96% 6.93% 6.60% 6.88% 7.24% Portfolio turnover rate 53% 40% 32% 32% 33% Net assets, end of period (in thousands) $292,664 $280,262 $485,344 $682,911 $ 780,656 ============================================================================================================================= * The Fund was audited by an independent registered public accounting firm other than Ernst & Young LLP. (a) The per share data presented above is based on the average shares outstanding for the period presented. (b) The amount shown for a share outstanding does not correspond with the aggregate loss on investments for the period due to the timing of sales and repurchases of shares in relation to fluctuating market values of the investments of the Fund. (c) 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. The accompanying notes are an integral part of these financial statements. 52 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Notes to Financial Statements | 10/31/17 1. Organization and Significant Accounting Policies Pioneer Global High Yield Fund (the Fund) is one of two portfolios comprising Pioneer Series Trust VII (the Trust), 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 three classes of shares designated as Class A, Class C and Class Y shares. Class Z shares converted to Class Y shares as of the close of business on August 7, 2015. 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 of Trustees 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 dollarweighted 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. On July 3, 2017, Amundi acquired Pioneer Investments, a group of asset management companies located throughout the world. Amundi, one of the world's largest asset managers, is headquartered in Paris, France. As a result of the transaction, Pioneer Investment Management, Inc., the Fund's investment adviser, became an indirect wholly owned subsidiary of Amundi and Amundi's wholly owned subsidiary, Amundi USA, Inc. Prior to July 3, 2017, Pioneer Investments was owned by Pioneer Global Asset Management S.p.A., a wholly owned subsidiary of UniCredit S.p.A. In connection with the transaction, the names of the Fund's investment adviser and principal underwriter changed. Effective July, 3, 2017, the name of Pioneer Investment Management, Inc. changed to Amundi Pioneer Asset Management, Inc. (the "Adviser") and the name of Pioneer Funds Distributor, Inc. changed to Amundi Pioneer Distributor, Inc. (the "Distributor"). Pioneer Global High Yield Fund | Annual Report | 10/31/17 53 In October 2016, the Securities and Exchange Commission (SEC) released its Final Rule on Investment Company Reporting Modernization. In addition to introducing two new regulatory reporting forms (Form N-PORT and Form N-CEN), the Final Rule amends Regulation S-X, which impacts financial statements presentation, particularly related to the presentation of derivative investments. The Fund's financial statements were prepared in compliance with the amendments to Regulation S-X. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles (U.S. GAAP) that require the management of the Fund to 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 Fund is an investment company and follows investment company accounting and reporting guidance under U.S. GAAP. The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements: A. Security Valuation The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. Fixed income securities are valued by using 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, or may use a pricing matrix or other fair value methods or techniques to provide an estimated value of the security or instrument. A pricing matrix is a means of valuing a debt security on the basis of current market prices for other debt securities, historical trading patterns in the market for fixed income securities and/or other factors. Non-U.S. debt securities that are listed on an exchange will be valued at the bid price obtained from an independent third party pricing service. When independent market quotations are considered to be unreliable, the value of that security may be determined using quotations from one or more broker-dealers. Loan interests 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 third party pricing service. If price information is not available from Loan Pricing Corporation, or if the price information is deemed to be unreliable, price information will be obtained from an 54 Pioneer Global High Yield Fund | Annual Report | 10/31/17 alternative loan interest pricing service. If no reliable price quotes are available from either the primary or alternative pricing service, broker quotes will be solicited. Event-linked bonds or catastrophe bonds are valued at the bid price obtained from an independent third party pricing service. Other insurance linked securities (including sidecars, collateralized reinsurance and industry loss warranties) may be valued at the bid price obtained from an independent pricing service, or through a third party using a pricing matrix, insurance industry valuation models, or other fair value methods or techniques to provide an estimated value of the instrument. The value of foreign securities is translated into U.S. dollars based on foreign currency exchange rate quotations supplied by a third party pricing source. Trading in non-U.S. equity 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. The Fund may use a fair value model developed by an independent pricing service to value non-U.S. equity securities. Equity securities that have traded on an exchange are valued by using 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 or, if both last bid and asked prices are not available, at the last quoted bid price. Last sale and bid and asked prices are provided by independent third party pricing services. In the case of equity securities not traded on an exchange, prices are typically determined by independent third party pricing services using a variety of techniques and methods. Swap contracts, including interest rate swaps, caps and floors (other than centrally cleared swap contracts) are valued at the dealer quotations obtained from reputable International Swap Dealers association members. Centrally cleared swaps are valued at the daily settlement price provided by the central clearing counterparty. Forward foreign currency exchange contracts are valued daily using the foreign exchange rate or, for longer term forward contract positions, the spot currency rate and the forward points on a daily basis, in each case provided by a third party pricing service. Contracts whose forward settlement date falls between two quoted days are valued by interpolation. Securities or loan interests for which independent pricing services or broker dealers are unable to supply prices or for which market prices and/or quotations are not readily available or are considered to be unreliable are valued by a fair valuation team comprised of certain personnel of the Adviser, pursuant to procedures adopted by the Fund's Board of Trustees. The Adviser's Pioneer Global High Yield Fund | Annual Report | 10/31/17 55 fair valuation team uses fair value methods approved by the Valuation Committee of the Board of Trustees. The Adviser's fair valuation team is responsible for monitoring developments that may impact fair valued securities and for discussing and assessing fair values on an ongoing basis, and at least quarterly, with the Valuation Committee of the Board of Trustees. Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ significantly from exchange prices and such differences could be material. At October 31, 2017, two securities were valued using fair value methods (in addition to securities valued using prices supplied by independent pricing services, broker-dealers or using a third party insurance industry pricing model) representing 0.20% of net assets. The value of these fair valued securities is $1,234,616. B. Investment Income and Transactions Principal amounts of mortgage-backed securities are adjusted for monthly paydowns. Premiums and discounts related to certain mortgage-backed securities are amortized or accreted in proportion to the monthly paydowns. All discounts/premiums on purchase prices of debt securities are accreted/amortized for financial reporting purposes over the life of the respective securities, and such accretion/amortization is included in interest income. Interest and dividend income payable by delivery of additional shares is reclassified as PIK (payment-in-kind) income upon receipt and is included in interest and dividend income, respectively. 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 and net of income accrued on defaulted securities. Security transactions are recorded as of trade date. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. 56 Pioneer Global High Yield Fund | Annual Report | 10/31/17 C. Foreign Currency Translation The books and records of the Fund are maintained in U.S. dollars. Amounts denominated in foreign currencies are translated into U.S. dollars using current exchange rates. Net realized gains and losses on foreign currency transactions, if any, represent, among other things, the net realized gains and losses on disposition of foreign currencies and the difference between the amount of income accrued and the U.S. dollars actually received. Further, the effects of changes in foreign currency exchange rates on investments are not segregated in the Statement of Operations from the effects of changes in the market prices of those securities but are included with the net realized and unrealized gain or loss on investments. D. Forward Foreign Currency Contracts The Fund may enter into forward foreign currency contracts (contracts) for the purchase or sale of a specific foreign currency at a fixed price on a future date. All contracts are marked to market daily at the applicable exchange rates, and any resulting unrealized appreciation or depreciation is recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a 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. During the year ended October 31, 2017, 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 contracts open during the year ended October 31, 2017 was $(14,091,795). Forward foreign currency contracts outstanding at October 31, 2017 are listed in the Schedule of Investments. E. 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 net taxable income and net realized capital gains, if any, to its shareowners. Therefore, no provision for federal income taxes is required. As of October 31, 2017, the Fund did not accrue any interest or penalties with respect to uncertain tax positions, which, if applicable, would be recorded as Pioneer Global High Yield Fund | Annual Report | 10/31/17 57 an income tax expense in the Statement of Operations. Tax returns filed within the prior three years remain subject to examination by federal and state tax authorities. The amount and character of income and capital gain distributions to shareowners are determined in accordance with federal income tax rules, which may differ from U.S. GAAP. 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. At October 31, 2017, the Fund reclassified $6,275,432 to increase distributions in excess of net investment income, $211,134,417 to decrease accumulated net realized loss on investments, and $204,858,985 to decrease paid-in capital to reflect permanent book/tax differences. These adjustments have no impact on net assets or the result of operations. At October 31, 2017, the Fund was permitted to carry forward indefinitely $22,066,008 of short-term losses and $243,325,356 of long-term losses under the Regulated Investment Company Modernization Act of 2010 without limitation. Additionally, at October 31, 2017, the Fund had a net capital loss carryforward of $26,270,910 which will expire in 2018 if not utilized. The tax character of distributions paid during the fiscal years ended October 31, 2017 and October 31, 2016, were as follows: --------------------------------------------------------------------------- 2017 2016 --------------------------------------------------------------------------- Distributions paid from: Ordinary income $29,779,606 $42,245,792 Tax return of capital 3,237,618 3,459,303 --------------------------------------------------------------------------- Total $33,017,224 $45,705,095 =========================================================================== The following shows the components of distributable earnings on a federal income tax basis at October 31, 2017: --------------------------------------------------------------------------- 2017 --------------------------------------------------------------------------- Distributable earnings: Capital loss carryforward $(291,662,274) Current year dividend payable (305,325) Net unrealized depreciation (3,375,857) --------------------------------------------------------------------------- Total $(295,343,456) =========================================================================== 58 Pioneer Global High Yield Fund | Annual Report | 10/31/17 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 and swaps, adjustments relating to catastrophe bonds, swaps, interest on defaulted bonds, and interest accruals on preferred stock. F. Fund Shares The Fund records sales and repurchases of its shares as of trade date. The Distributor earned $8,811 in underwriting commissions on the sale of Class A shares during the year ended October 31, 2017. G. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. Distribution fees are calculated based on the average daily net asset value attributable to Class A and Class C shares of the Fund, respectively (see Note 4). Class Y shares do not pay distribution fees. All expenses and fees paid to the Fund's transfer agent 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. H. Insurance-Linked Securities (ILS) The Fund invests in event-linked bonds. Event-linked bonds are floating rate debt obligations for which the return of principal and the payment of interest are contingent on the non-occurrence of a pre-defined "trigger" event, such as a hurricane or an earthquake of a specific magnitude. The trigger event's magnitude may be based on losses to a company or industry, industry indexes or readings of scientific instruments, or may be based on specified actual losses. If a trigger event, as defined within the terms of an event-linked bond occurs, the Fund may lose a portion or all of its accrued interest and/or principal invested in such event-linked bond. The Fund is entitled to receive principal and interest payments so long as no trigger event occurs of the description and magnitude specified by the instrument. In addition to the Pioneer Global High Yield Fund | Annual Report | 10/31/17 59 specified trigger events, event-linked bonds may expose the Fund to other risks, including but not limited to issuer (credit) default, adverse regulatory or jurisdictional interpretations and adverse tax consequences. The Fund's investments in ILS may include special purpose vehicles (SPVs) or similar instruments structured to comprise a portion of a reinsurer's catastrophe-oriented business, known as quota share instruments (sometimes referred to as reinsurance sidecars), or to provide reinsurance relating to specific risks to insurance or reinsurance companies through a collateralized instrument, known as collateralized reinsurance. Structured reinsurance investments also may include industry loss warranties (ILWs). A traditional ILW takes the form of a bilateral reinsurance contract, but there are also products that take the form of derivatives, collateralized structures, or exchange traded instruments. Structured reinsurance investments, including quota share instruments, collateralized reinsurance investments and ILWs, are subject to the same risks as event-linked bonds. In addition, where the instruments are based on the performance of underlying reinsurance contracts, the Fund has limited transparency into the individual underlying contracts and therefore must rely upon the risk assessment and sound underwriting practices of the issuer. Accordingly, it may be more difficult for the Adviser to fully evaluate the underlying risk profile of the Fund's structured reinsurance investments and therefore the Fund's assets are placed at greater risk of loss than if the Adviser had more complete information. Structured reinsurance instruments generally will be considered illiquid securities by the Fund. These securities may be difficult to purchase, sell or unwind. Illiquid securities also may be difficult to value. If the Fund is forced to sell an illiquid asset, the Fund may be forced to sell at a loss. I. Risks The value of securities held by the Fund may go up or down, sometimes rapidly or unpredictably, due to general market conditions, such as real or perceived adverse economic, political or regulatory conditions, inflation, changes in interest rates, lack of liquidity in the bond markets or adverse investor sentiment. In the past several years, financial markets have experienced increased volatility, depressed valuations, decreased liquidity and heightened uncertainty. These conditions may continue, recur, worsen or spread. 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 60 Pioneer Global High Yield Fund | Annual Report | 10/31/17 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. Interest rates in the U.S. recently have been historically low, so the Fund faces a heightened risk that interest rates may rise. A general rise in interest rates may cause investors to move out of fixed income securities on a large scale, which could adversely affect the price and liquidity of fixed income securities and could also result in increased redemptions from the Fund. Certain securities in which the Fund invests, including floating rate loans, once sold, may not settle for an extended period (for example, several weeks or even longer). The Fund will not receive its sale proceeds until that time, which may constrain the Fund's ability to meet its obligations (including obligations to redeeming shareholders). 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. J. Credit Default Swap Contracts 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 sell or buy credit default swap contracts to seek to increase the Fund's income, or to attempt to hedge the risk of default on portfolio securities. A credit default swap index is used to hedge risk or take a position on a basket of credit entities or indices. As a seller of protection, the Fund would be required to pay the notional (or other agreed-upon) value of the referenced debt obligation to the counterparty in the event of a default by a U.S. or foreign corporate issuer of a debt obligation, which would likely result in a loss to the Fund. In return, the Fund would receive from the counterparty a periodic stream of payments during the term of the contract provided that no event of default occurred. The maximum exposure of loss to the seller would be the notional value of the credit default swaps outstanding. If no default occurs, the Fund would keep the stream of payments and would have no payment obligation. The Fund may also buy credit default swap contracts in order to hedge against the risk of default of debt securities, in which case the Fund would function as the counterparty referenced above. Pioneer Global High Yield Fund | Annual Report | 10/31/17 61 When the Fund enters into a credit default swap contract, the protection buyer makes an upfront or periodic payment to the protection seller in exchange for the right to receive a contingent payment. An upfront payment made by the Fund, as the protection buyer, is recorded as a component of unrealized appreciation/depreciation on open swap contracts in the Statement of Assets and Liabilities. Periodic payments received or paid by the Fund are recorded as realized gains or losses in the Statement of Operations. Credit default swap contracts are marked-to-market daily using valuations supplied by independent sources and the change in value, if any, is recorded within "Swap contracts, at value" line item in the Statement of Assets and Liabilities. Payments received or made as a result of a credit event or upon termination of the contract are recognized, net of the appropriate amount of the upfront payment, as realized gains or losses in the Statement of Operations. Credit default swap contracts involving the sale of protection may involve greater risks than if the Fund had invested in the referenced debt instrument directly. Credit default swap contracts are subject to general market risk, liquidity risk, counterparty risk and credit risk. If the Fund is a protection buyer and no credit event occurs, it will lose its investment. If the Fund is a protection seller and a credit event occurs, the value of the referenced debt instrument received by the Fund, together with the periodic payments received, may be less than the amount the Fund pays to the protection buyer, resulting in a loss to the Fund. Certain swap contracts that are cleared through a central clearinghouse are referred to as centrally cleared swaps. All payments made or received by the Fund are pursuant to a centrally cleared swap contract with the central clearing party rather than the original counterparty. Upon entering into a centrally cleared swap contract, the Fund is required to make an initial margin deposit, either in cash or in securities. The daily change in value on open centrally cleared swap contracts is recorded as variation margin on centrally cleared swaps in the Statement of Assets and Liabilities. The amount of cash deposited with a broker as collateral at October 31, 2017 and is recorded as "Swaps collateral" in the Statement of Assets and Liabilities. Open credit default swap contracts at October 31, 2017, are listed in the Schedule of Investments. The average value of swap contracts open during the year ended October 31, 2017 was $539,066. 62 Pioneer Global High Yield Fund | Annual Report | 10/31/17 K. Purchased Options The Fund may purchase put and call options to seek to increase total return. Purchased call and put options entitle the Fund to buy and sell a specified number of shares or units of a particular security, currency or index at a specified price at a specific date or within a specific period of time. Upon the purchase of a call or put option, the premium paid by the Fund is included in the Statement of Assets and Liabilities as an investment. All premiums are marked-to-market daily, and any unrealized appreciation or depreciation are recorded in the Fund's financial statements. As the purchaser of an index option, the Fund has the right to receive a cash payment equal to any depreciation in the value of the index below the strike price of the option (in the case of a put) or equal to any appreciation in the value of the index over the strike price of the option (in the case of a call) as of the valuation date of the option. Premiums paid for purchased call and put options which have expired are treated as realized losses on investments in the Statement of Operations. Upon the exercise or closing of a purchased put option, the premium is offset against the proceeds on the sale of the underlying security or financial instrument in order to determine the realized gain or loss on investments. Upon the exercise or closing of a purchased call option, the premium is added to the cost of the security or financial instrument. The risk associated with purchasing options is limited to the premium originally paid. The average value of contracts open during the year ended October 31, 2017 was $-. Purchased options open at year end are listed in the Fund's Schedule of Investments. 2. Management Agreement The 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 year ended October 31, 2017, the effective management fee (excluding waivers and/or assumption of expenses) was equivalent to 0.69% of the Fund's average daily net assets. 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 in the Statement of Assets and Liabilities is $84,012 in management fees, administrative costs and certain other reimbursements payable to the Adviser at October 31, 2017. Pioneer Global High Yield Fund | Annual Report | 10/31/17 63 3. Transfer Agent Boston Financial Data Services serves as the transfer agent to the Fund at negotiated rates. Transfer agent fees and payables shown in the Statement of Operations and the Statement of Assets and Liabilities, respectively, include sub-transfer agent expenses incurred through the Fund's omnibus relationship contracts. In addition, the Fund reimbursed the transfer agent for out-of-pocket expenses incurred by the transfer agent related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the year ended October 31, 2017, such out-of-pocket expenses by class of shares were as follows: -------------------------------------------------------------------------------- Shareowner Communications 2017 -------------------------------------------------------------------------------- Class A $28,039 Class C 17,975 Class Y 13,594 -------------------------------------------------------------------------------- Total $59,608 ================================================================================ 4. Distribution Plan The Fund has adopted a distribution plan (the 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 the Distributor 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 the Distributor 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 in the Statement of Assets and Liabilities is $71,524 in distribution fees payable to the Distributor at October 31, 2017. In addition, redemptions of each class of shares (except Class Y shares) may be subject to a contingent deferred sales charge (CDSC). A CDSC of 1.00% may be imposed on redemptions of certain net asset value purchases of Class A shares within 12 months of purchase. Redemptions of Class C shares within 12 months of purchase are subject to a CDSC of 1.00% based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class Y shares. Proceeds from the CDSCs are paid to the Distributor. For the year ended October 31, 2017, CDSCs in the amount of $5,227 were paid to the Distributor. 64 Pioneer Global High Yield Fund | Annual Report | 10/31/17 5. 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 which the Fund participated until February 9, 2016 was in the amount of $240 million. The credit facility in which the fund participated until February 7, 2017 was in the amount of $220 million. Effective February 8, 2017, the Fund participates in a facility that is in the amount of $195 million. Under such facility, depending on the type of loan, interest on borrowings is payable at the London Interbank Offered Rate (LIBOR) plus 0.85% 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 or (c) 2% plus the overnight Eurodollar rate on the borrowing date. The Funds pay an annual commitment fee to participate in a credit facility. The commitment fee is allocated among participating Funds based on an allocation schedule set forth in the credit agreement. For the year ended October 31, 2017, the Fund had no borrowings under the credit facility. 6. Assets and Liabilities Offsetting The Fund has entered into an International Swaps and Derivatives Association, Inc. Master Agreement (ISDA Master Agreement) or similar agreement with substantially all its derivative counterparties. An ISDA Master Agreement is a bilateral agreement between the Fund and a counterparty that governs the trading of certain Over the Counter (OTC) derivatives and typically contains, among other things, close-out and set-off provisions which apply upon the occurrence of an event of default and/or a termination event as defined under the relevant ISDA Master Agreement. The ISDA Master Agreement may also give a party the right to terminate all transactions traded under such agreement if, among other things, there is deterioration in the credit quality of the other party. Upon an event of default or a termination of the ISDA Master Agreement, the non-defaulting party has the right to close out all transactions under such agreement and to net amounts owed under each transaction to determine one net amount payable by one party to the other. The right to close out and net payments across all transactions under the ISDA Master Agreement could result in a reduction of the Fund's credit risk to its counterparty equal to any amounts payable by the Fund under the applicable transactions, if any. However, the Fund's right to setoff may be restricted or prohibited by the bankruptcy or insolvency laws of the particular jurisdiction to which each specific ISDA of each counterparty is subject. Pioneer Global High Yield Fund | Annual Report | 10/31/17 65 The collateral requirements for derivatives transactions under an ISDA Master Agreement are governed by a credit support annex to the ISDA Master Agreement. Collateral requirements are generally determined at the close of business each day and are typically based on changes in market values for each transaction under an ISDA Master Agreement and netted into one amount for such agreement. Generally, the amount of collateral due from or to a counterparty is subject to threshold (a "minimum transfer amount") before a transfer is required, which may vary by counterparty. Collateral pledged for the benefit of the Fund and/or counterparty is held in segregated accounts by the Fund's custodian and cannot be sold, re-pledged, assigned or otherwise used while pledged. Cash that has been segregated to cover the Fund's collateral obligations, if any, will be reported separately in the Statement of Assets and Liabilities as "Swaps collateral". Securities pledged by the Fund as collateral, if any, are identified as such in the Schedule of Investments. Financial instruments subject to an enforceable master netting agreement such as an ISDA Master Agreement have not been offset in the Statement of Assets and Liabilities. The following charts show gross assets and liabilities of the Fund as of October 31, 2017. ---------------------------------------------------------------------------------------------------- Derivative Assets Derivatives Non-Cash Cash Net Amount Subject to Master Available for Collateral Collateral of Derivative Counterparty Netting Agreement Offset Received (a) Received (a) Assets (b) ---------------------------------------------------------------------------------------------------- Goldman Sachs International $155,726 $(31,323) $-- $-- $124,403 JPMorgan Chase Bank NA 14,875 -- -- -- 14,875 State Street Bank and Trust Co. 4,548 (4,548) -- -- -- ---------------------------------------------------------------------------------------------------- Total $175,149 $(35,871) $-- $-- $139,278 ==================================================================================================== ----------------------------------------------------------------------------------------------------- Derivative Liabilities Derivatives Non-Cash Cash Net Amount Subject to Master Available for Collateral Collateral of Derivative Counterparty Netting Agreement Offset Pledged (a) Pledged (a) Liabilities (c) ----------------------------------------------------------------------------------------------------- Goldman Sachs International $ 31,323 $(31,323) $-- $-- $ -- State Street Bank and Trust Co. 36,239 (4,548) -- -- 31,691 ----------------------------------------------------------------------------------------------------- Total $ 67,562 $(35,871) $-- $-- $ 31,691 ===================================================================================================== (a) The amount presented here may be less than the total amount of collateral received/pledged as the net amount of derivative assets and liabilities cannot be less than $0. (b) Represents the net amount due from the counterparty in the event of default. (c) Represents the net amount payable to the counterparty in the event of default. 66 Pioneer Global High Yield Fund | Annual Report | 10/31/17 7. Additional Disclosures about Derivative Instruments and Hedging Activities The Fund's use of derivatives subjects it to the following risks: Interest rate risk relates to the fluctuations in the value of interest-bearing securities due to changes in the prevailing levels of market interest rates. Credit risk relates to the ability of the issuer of a financial instrument to make further principal or interest payments on an obligation or commitment that it has to the Fund. Foreign exchange rate risk relates to fluctuations in the value of an asset or liability due to changes in currency exchange rates. Equity risk relates to the fluctuations in the value of financial instruments as a result of changes in market prices (other than those arising from interest rate risk or foreign exchange risk), whether caused by factors specific to an individual investment, its issuer, or all factors affecting all instruments traded in a market or market segment. Commodity risk relates to the risk that the value of a commodity or commodity index will fluctuate based on increases or decreases in the commodities market and factors specific to a particular industry or commodity. The fair value of open derivative instruments (not considered to be hedging instruments for accounting disclosure purposes) by risk exposure at October 31, 2017 was as follows: ----------------------------------------------------------------------------------- Foreign Statement of Interest Credit Exchange Equity Commodity Assets and Liabilities Rate Risk Risk Rate Risk Risk Risk ----------------------------------------------------------------------------------- Assets Swap contracts, at value $-- $555,688 $ -- $-- $-- ----------------------------------------------------------------------------------- Total Value $-- $555,688 $ -- $-- $-- =================================================================================== Liabilities Net unrealized depreciation on forward foreign currency contracts $-- $ -- $8,873 $-- $-- ----------------------------------------------------------------------------------- Total Value $-- $ -- $8,873 $-- $-- =================================================================================== Pioneer Global High Yield Fund | Annual Report | 10/31/17 67 The effect of derivative instruments (not considered to be hedging instruments for accounting disclosure purposes) in the Statement of Operations by risk exposure at October 31, 2017 was as follows: ---------------------------------------------------------------------------------- Foreign Statement Interest Credit Exchange Equity Commodity of Operations Rate Risk Risk Rate Risk Risk Risk ---------------------------------------------------------------------------------- Net realized gain (loss) on Swap contracts $-- $273,221 $ -- $-- $-- Forward foreign currency contracts -- -- (626,800) -- -- ---------------------------------------------------------------------------------- Total Value $-- $273,221 $(626,800) $-- $-- ================================================================================== Change in net unrealized appreciation (depreciation) on Swap contracts $-- $364,805 $ -- $-- $-- Forward foreign currency contracts -- -- (312,938) -- -- ---------------------------------------------------------------------------------- Total Value $-- $364,805 $(312,938) $-- $-- ================================================================================== 8. Unfunded Loan Commitments The Fund may enter into unfunded loan commitments. Unfunded loan commitments may be partially or wholly unfunded. During the contractual period, the Fund is obligated to provide funding to the borrower upon demand. A fee is earned by the Fund on the unfunded commitment and is recorded as interest income in the Statement of Operations. As of October 31, 2017, the Fund had the following unfunded loan commitments outstanding: -------------------------------------------------------------------------------- Unrealized Appreciation Loan Par Cost Value (Depreciation) -------------------------------------------------------------------------------- Beacon, Roofing Supply Inc., Bridge Loan $ 1,790,000 $ 1,790,000 $ 1,790,000 $-- Centene Corp., Bridge Loan 4,490,000 4,490,000 4,490,000 -- Itron, Inc., Bridge Loan 1,750,000 1,750,000 1,750,000 -- -------------------------------------------------------------------------------- Total $ 8,030,000 $ 8,030,000 $ 8,030,000 $-- ================================================================================ 68 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Report of Independent Registered Public Accounting Firm To the Board of Trustees of Pioneer Series Trust VII and the Shareholders of Pioneer Global High Yield Fund: -------------------------------------------------------------------------------- We have audited the accompanying statement of assets and liabilities, including the schedule of investments, of Pioneer Global High Yield Fund (the "Fund"), one of the funds constituting Pioneer Series Trust VII (the "Trust"), as of October 31, 2017, and the related statements of operations, changes in net assets and the financial highlights for the year then ended and the consolidated financial highlights for the year ended October 31, 2013. These financial statements and financial highlights are the responsibility of the Fund's management. Our responsibility is to express an opinion on these financial statements and financial highlights based on our audits. The statement of changes in net assets for the year ended October 31, 2016 and the financial highlights for periods ended October 31, 2014, October 31, 2015 and October 31, 2016 were audited by another independent registered public accounting firm whose report, dated December 23, 2016, expressed an unqualified opinion on the statement of changes in net assets and those financial highlights. We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements and financial highlights are free of material misstatement. We were not engaged to perform audits of the Fund's internal control over financial reporting. Our audits included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements and financial highlights, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our procedures included confirmation of securities owned as of October 31, 2017, by correspondence with the custodian, brokers and others or by other appropriate auditing procedures where replies from brokers and others were not received. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements and financial highlights referred to above present fairly, in all material respects, the financial position of Pioneer Global High Yield Fund at October 31, 2017, the results of its operations, the changes in its net assets, and the financial highlights for the year then ended and the consolidated financial highlights for the year ended October 31, 2013, in conformity with U.S. generally accepted accounting principles. /s/ Ernst & Young LLP Boston, Massachusetts December 26, 2017 Pioneer Global High Yield Fund | Annual Report | 10/31/17 69 Additional Information (unaudited) The percentages of the Fund's ordinary Income distributions that are exempt from non resident alien (NRA) tax withholding resulting from qualified interest income was 57.69%. Change in Independent Registered Public Accounting Firm Prior to July 3, 2017 Pioneer Investment Management, Inc. (the Adviser), the Fund's investment adviser, was an indirect, wholly owned subsidiary of UniCredit S.p.A. (UniCredit). On that date, UniCredit completed the sale of its Pioneer Investments business, which includes the Adviser, to Amundi (the Transaction). As a result of the Transaction, the Adviser became an indirect, wholly-owned subsidiary of Amundi. Amundi is controlled by Credit Agricole S.A. Amundi is headquartered in Paris, France, and, as of September 30, 2016, had more than $1.1 trillion in assets under management worldwide. Deloitte & Touche LLP (D&T), the Fund's previous independent registered public accounting firm, informed the Audit Committee and the Board that it would no longer be independent with respect to the Funds upon the completion of the Transaction as a result of certain services being provided to Amundi and Credit Agricole, and, accordingly, that it intended to resign as the Fund's independent registered public accounting firm upon the completion of the Transaction. D&T's resignation was effective on July 3, 2017, when the Transaction was completed. During the periods as to which D&T has served as the Fund's independent registered public accounting firm, including the Fund's two most recent fiscal years, D&T's reports on the Fund's financial statements have not contained an adverse opinion or disclaimer of opinion and have not been qualified or modified as to uncertainty, audit scope or accounting principles. Further, there have been no disagreements with D&T on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure, which, if not resolved to the satisfaction of D&T, would have caused D&T to make reference to the subject matter of the disagreement in connection with its report on the financial statements. In addition, there have been no reportable events of the kind described in Item 304(a)(1)(v) of Regulation S-K under the Securities Exchange Act of 1934. Effective immediately following the completion of the Transaction on July 3, 2017, the Board, acting upon the recommendation of the Audit Committee, engaged a new independent registered public accounting firm, Ernst & Young LLP (EY). 70 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Prior to its engagement, EY had advised the Fund's Audit Committee that EY had identified the following matters, in each case relating to services rendered by other member firms of Ernst & Young Global Limited, all of which are located outside the United States, to UniCredit and certain of its subsidiaries during the period commencing July 1, 2016, that it determined to be inconsistent with the auditor independence rules set forth by the Securities and Exchange Commission (SEC): (a) project management support services to UniCredit in the Czech Republic, Germany, Italy, Serbia and Slovenia in relation to twenty-two projects, that were determined to be inconsistent with Rule 2-01(c)(4)(vi) of Regulation S-X (management functions); (b) two engagements for UniCredit in Italy where fees were contingent/success based and that were determined to be inconsistent with Rule 2-01(c)(5) of Regulation S-X (contingent fees); (c) four engagements where legal and expert services were provided to UniCredit in the Czech Republic and Germany, and twenty engagements where the legal advisory services were provided to UniCredit in Austria, Czech Republic, Italy and Poland, that were determined to be inconsistent with Rule 2-01(c)(4)(ix) and (x) of Regulation S-X (legal and expert services); and (d) two engagements for UniCredit in Italy involving assistance in the sale of certain assets, that were determined to be inconsistent with Rule 2-01(c)(4)(viii) of Regulation S-X (broker-dealer, investment advisor or investment banking services). None of the foregoing services involved the Fund, any of the other funds in the Pioneer Family of Funds or any other Pioneer entity sold by UniCredit in the Transaction. EY advised the Audit Committee that it had considered the matters described above and had concluded that such matters would not impair EY's ability to exercise objective and impartial judgment in connection with the audits of the financial statements of the Funds under the SEC and Public Company Accounting Oversight Board independence rules, and that a reasonable investor with knowledge of all relevant facts and circumstances would reach the same conclusion. Management and the Audit Committee considered these matters and discussed the matters with EY and, based upon EY's description of the matters and statements made by EY, Management and the Audit Committee believe that EY will be capable of exercising objective and impartial judgment in connection with the audits of the financial statements of the Fund, and Management further believes that a reasonable investor with knowledge of all relevant facts and circumstances would reach the same conclusion. Pioneer Global High Yield Fund | Annual Report | 10/31/17 71 Results of Shareholder Meeting At a special meeting held on June 13, 2017, shareholders of the Fund were asked to consider the proposals described below. A report of the total votes cast by the Fund's shareholders (or, with respect to Proposal 2, by shareholders of Pioneer Series Trust VII, as noted below) follows: ------------------------------------------------------------------------------------------------------ For Against Abstain Broker Non-Votes ------------------------------------------------------------------------------------------------------ Proposal 1 - To approve 32,440,760.655 704,624.135 1,221,575.312 10,141,546.600 a New Management Agreement with the Adviser ----------------------------------------------------------------------------------------------------- For Withheld ----------------------------------------------------------------------------------------------------- Proposal 2 - To elect Trustees* ----------------------------------------------------------------------------------------------------- David R. Bock 46,356,571.403 1,941,738.750 ----------------------------------------------------------------------------------------------------- Benjamin M. Friedman 46,347,916.283 1,950,393.870 ----------------------------------------------------------------------------------------------------- Margaret B.W. Graham 46,178,367.969 2,119,942.184 ----------------------------------------------------------------------------------------------------- Lisa M. Jones 46,169,721.329 2,128,588.824 ----------------------------------------------------------------------------------------------------- Lorraine H. Monchak 46,201,867.234 2,096,442.919 ----------------------------------------------------------------------------------------------------- Thomas J. Perna 46,378,862.453 1,919,447.700 ----------------------------------------------------------------------------------------------------- Marguerite A. Piret 46,203,924.961 2,094,385.192 ----------------------------------------------------------------------------------------------------- Fred J. Ricciardi 46,378,634.184 1,919,675.969 ----------------------------------------------------------------------------------------------------- Kenneth J. Taubes 46,386,579.585 1,911,730.568 ----------------------------------------------------------------------------------------------------- * Proposal 2 was voted on and approved by all series of Pioneer Series Trust VII. Results reported above reflect the combined votes of all series of the Trust. ------------------------------------------------------------------------------------------------------ For Against Abstain Broker Non-Votes ------------------------------------------------------------------------------------------------------ Proposal 3 - To convert 28,127,394.240 4,605,900.479 1,633,648.383 10,141,563.600 investment objective(s) from fundamental to non-fundamental 72 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Trustees, Officers and Service Providers Investment Adviser Amundi Pioneer Asset Management, Inc. Custodian and Sub-Administrator Brown Brothers Harriman & Co. Independent Registered Public Accounting Firm Ernst & Young LLP Principal Underwriter Amundi Pioneer Distributor, Inc. Legal Counsel Morgan, Lewis & Bockius LLP Shareowner Services and Transfer Agent Boston Financial Data 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 July 31 is publicly available to shareowners at www.amundipioneer.com. This information is also available on the Securities and Exchange Commission's web site at www.sec.gov. Trustees and Officers The Fund's Trustees and officers are listed below, together with their principal occupations and other directorships they have held during at least the past five years. Trustees who are interested persons of the Fund within the meaning of the 1940 Act are referred to as Interested Trustees. Trustees who are not interested persons of the Fund are referred to as Independent Trustees. Each of the Trustees serves as a Trustee of each of the 46 U.S. registered investment portfolios for which Amundi Pioneer serves as investment adviser (the "Pioneer Funds"). The address for all Trustees and all officers of the Fund is 60 State Street, Boston, Massachusetts 02109. The Statement of Additional Information of the Fund includes additional information about the Trustees and is available, without charge, upon request, by calling 1-800-225-6292. Pioneer Global High Yield Fund | Annual Report | 10/31/17 73 Independent Trustees ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Thomas J. Perna (67) Trustee since 2006. Private investor (2004 - 2008 and 2013 - Director, Broadridge Financial Chairman of the Board Serves until a present); Chairman (2008 - 2013) and Chief Solutions, Inc. (investor and Trustee successor trustee is Executive Officer (2008 - 2012), Quadriserv, communications and securities elected or earlier Inc. (technology products for securities lending processing provider for retirement or industry); and Senior Executive Vice President, financial services industry) removal. The Bank of New York (financial and securities (2009 - present); Director, services) (1986 - 2004) Quadriserv, Inc. (2005 - 2013); and Commissioner, New Jersey State Civil Service Commission (2011 - 2015) ------------------------------------------------------------------------------------------------------------------------------------ David R. Bock (73) Trustee since 2005. Managing Partner, Federal City Capital Advisors Director of New York Mortgage Trustee Serves until a (corporate advisory services company) (1997 - Trust (publicly-traded mortgage successor trustee is 2004 and 2008 - present); Interim Chief REIT) (2004 - 2009, 2012 - elected or earlier Executive Officer, Oxford Analytica, Inc. present); Director of The Swiss retirement or (privately held research and consulting company) Helvetia Fund, Inc. (closed-end removal. (2010); Executive Vice President and Chief fund) (2010 - present); Financial Officer, I-trax, Inc. (publicly traded Director of Oxford Analytica, health care services company) (2004 - 2007); and Inc. (2008 - present); and Executive Vice President and Chief Financial Director of Enterprise Officer, Pedestal Inc. (internet-based mortgage Community Investment, Inc. trading company) (2000 - 2002); Private (privately-held affordable Consultant (1995 - 1997); Managing Director, housing finance company) (1985 - Lehman Brothers (1992 - 1995); Executive, The 2010) World Bank (1979 - 1992) ------------------------------------------------------------------------------------------------------------------------------------ Benjamin M. Friedman (73) Trustee since 2008. William Joseph Maier Professor of Political Trustee, Mellon Institutional Trustee Serves until a Economy, Harvard University (1972 - present) Funds Investment Trust and successor trustee is Mellon Institutional Funds elected or earlier Master Portfolio (oversaw 17 retirement or portfolios in fund complex) removal. (1989 - 2008) ------------------------------------------------------------------------------------------------------------------------------------ 74 Pioneer Global High Yield Fund | Annual Report | 10/31/17 ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Margaret B.W. Graham (70) Trustee since 2001. Founding Director, Vice-President and Corporate None Trustee Serves until a Secretary, The Winthrop Group, Inc. (consulting successor trustee is firm) (1982 - present); Desautels Faculty of elected or earlier Management, McGill University (1999 - present); retirement or and Manager of Research Operations and removal. Organizational Learning, Xerox PARC, Xerox's advance research center (1990-1994) ------------------------------------------------------------------------------------------------------------------------------------ Lorraine H. Monchak (61) Trustee since 2017. Chief Investment Officer, 1199 SEIU Funds None Trustee (Advisory Trustee (healthcare workers union pension funds) (2001 - from 2014 - 2017). present); Vice President - International Serves until a Investments Group, American International Group, successor trustee is Inc. (insurance company) (1993 - 2001); Vice elected or earlier President, Corporate Finance and Treasury Group, retirement or Citibank, N.A. (1980 - 1986 and 1990 - 1993); removal. Vice President - Asset/Liability Management Group, Federal Farm Funding Corporation (government-sponsored issuer of debt securities) (1988 - 1990); Mortgage Strategies Group, Shearson Lehman Hutton, Inc. (investment bank) (1987 - 1988); Mortgage Strategies Group, Drexel Burnham Lambert, Ltd. (investment bank) (1986 - 1987) ------------------------------------------------------------------------------------------------------------------------------------ Marguerite A. Piret (69) Trustee since 2001. President and Chief Executive Officer, Newbury Director of New America High Trustee Serves until a Piret Company (investment banking firm) (1981 - Income Fund, Inc. (closed-end successor trustee is present) investment company) (2004 - elected or earlier present); and Member, Board of retirement or Governors, Investment Company removal. Institute (2000 - 2006) ------------------------------------------------------------------------------------------------------------------------------------ Fred J. Ricciardi (70) Trustee since 2014. Consultant (investment company services) (2012 - None Trustee Serves until a present); Executive Vice President, BNY Mellon successor trustee is (financial and investment company services) (1969 elected or earlier - 2012); Director, BNY International Financing retirement or Corp. (financial services) (2002 - 2012); removal. Director, Mellon Overseas Investment Corp. (financial services) (2009 - 2012) ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Global High Yield Fund | Annual Report | 10/31/17 75 Interested Trustees ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Lisa M. Jones (55)* Trustee since 2017. Chair, Director, CEO and President of Amundi None Trustee, President and Serves until a Pioneer Asset Management USA, Inc. (since Chief Executive Officer successor trustee is September 2014); Chair, Director and CEO of elected or earlier Amundi Pioneer Asset Management, Inc. (since retirement or removal September 2014); Chair, Director and CEO of Amundi Pioneer Distributor, Inc. (since September 2014); Chair, Director, CEO and President of Amundi Pioneer Institutional Asset Management, Inc. (since September 2014); Managing Director, Morgan Stanley Investment Management (2010 - 2013); Director of Institutional Business, CEO of International, Eaton Vance Management (2005 - 2010) ------------------------------------------------------------------------------------------------------------------------------------ Kenneth J. Taubes (59)* Trustee since 2014. Director and Executive Vice President (since None Trustee Serves until a 2008) and Chief Investment Officer, U.S. (since successor trustee is 2010) of Amundi Pioneer Asset Management USA, elected or earlier Inc.; Executive Vice President and Chief retirement or removal Investment Officer, U.S. of Amundi Pioneer (since 2008); Executive Vice President of Amundi Pioneer Institutional Asset Management, Inc. (since 2009); Portfolio Manager of Amundi Pioneer (since 1999) ------------------------------------------------------------------------------------------------------------------------------------ * Ms. Jones and Mr. Taubes are Interested Trustees because they are officers or directors of the Fund's investment adviser and certain of its affiliates. 76 Pioneer Global High Yield Fund | Annual Report | 10/31/17 Fund Officers ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Christopher J. Kelley (52) Since 2003. Serves at Vice President and Associate General Counsel of None Secretary and Chief Legal the discretion of the Amundi Pioneer since January 2008; Secretary and Officer Board Chief Legal Officer of all of the Pioneer Funds since June 2010; Assistant Secretary of all of the Pioneer Funds from September 2003 to May 2010; Vice President and Senior Counsel of Amundi Pioneer from July 2002 to December 2007 ------------------------------------------------------------------------------------------------------------------------------------ Carol B. Hannigan (56) Since 2010. Serves at Fund Governance Director of Amundi Pioneer since None Assistant Secretary the discretion of the December 2006 and Assistant Secretary of all the Board Pioneer Funds since June 2010; Manager - Fund Governance of Amundi Pioneer from December 2003 to November 2006; and Senior Paralegal of Amundi Pioneer from January 2000 to November 2003 ------------------------------------------------------------------------------------------------------------------------------------ Thomas Reyes (54) Since 2010. Serves at Senior Counsel of Amundi Pioneer since May 2013 None Assistant Secretary the discretion of the and Assistant Secretary of all the Pioneer Funds Board since June 2010; Counsel of Amundi Pioneer from June 2007 to May 2013 ------------------------------------------------------------------------------------------------------------------------------------ Mark E. Bradley (57) Since 2008. Serves at Vice President - Fund Treasury of Amundi None Treasurer and Chief the discretion of the Pioneer; Treasurer of all of the Pioneer Funds Financial Board since March 2008; Deputy Treasurer of Amundi and Accounting Officer Pioneer from March 2004 to February 2008; and Assistant Treasurer of all of the Pioneer Funds from March 2004 to February 2008 ------------------------------------------------------------------------------------------------------------------------------------ Luis I. Presutti (52) Since 2001. Serves at Director - Fund Treasury of Amundi Pioneer; and None Assistant Treasurer the discretion of the Assistant Treasurer of all of the Pioneer Funds Board ------------------------------------------------------------------------------------------------------------------------------------ Gary Sullivan (59) Since 2002. Serves at Fund Accounting Manager - Fund Treasury of None Assistant Treasurer the discretion of the Amundi Pioneer; and Assistant Treasurer of all Board of the Pioneer Funds ------------------------------------------------------------------------------------------------------------------------------------ David F. Johnson (37) Since 2009. Serves at Fund Administration Manager - Fund Treasury of None Assistant Treasurer the discretion of the Amundi Pioneer since November 2008; Assistant Board Treasurer of all of the Pioneer Funds since January 2009; Client Service Manager - Institutional Investor Services at State Street Bank from March 2003 to March 2007 ------------------------------------------------------------------------------------------------------------------------------------ Pioneer Global High Yield Fund | Annual Report | 10/31/17 77 Fund Officers (continued) ------------------------------------------------------------------------------------------------------------------------------------ Name, Age and Term of Office and Other Directorships Position Held With the Fund Length of Service Principal Occupation Held by Trustee ------------------------------------------------------------------------------------------------------------------------------------ Jean M. Bradley (65) Since 2010. Serves at Chief Compliance Officer of Amundi Pioneer and None Chief Compliance Officer the discretion of the of all the Pioneer Funds since March 2010; Chief Board Compliance Officer of Amundi Pioneer Institutional Asset Management, Inc. since January 2012; Chief Compliance Officer of Vanderbilt Capital Advisors, LLC since July 2012: Director of Adviser and Portfolio Compliance at Amundi Pioneer since October 2005; Senior Compliance Officer for Columbia Management Advisers, Inc. from October 2003 to October 2005 ------------------------------------------------------------------------------------------------------------------------------------ Kelly O'Donnell (46) Since 2006. Serves at Director - Transfer Agency Compliance of Amundi None Anti-Money Laundering the discretion of the Pioneer and Anti-Money Laundering Officer of all Officer Board the Pioneer Funds since 2006 ------------------------------------------------------------------------------------------------------------------------------------ 78 Pioneer Global High Yield Fund | Annual Report | 10/31/17 This page is for your notes. Pioneer Global High Yield Fund | Annual Report | 10/31/17 79 This page is for your notes. 80 Pioneer Global High Yield Fund | Annual Report | 10/31/17 This page is for your notes. Pioneer Global High Yield Fund | Annual Report | 10/31/17 81 This page is for your notes. 82 Pioneer Global High Yield Fund | Annual Report | 10/31/17 This page is for your notes. Pioneer Global High Yield Fund | Annual Report | 10/31/17 83 This page is for your notes. 84 Pioneer Global High Yield Fund | Annual Report | 10/31/17 How to Contact Amundi 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: -------------------------------------------------------------------------------- Amundi Pioneer P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address us.askamundipioneer@amundipioneer.com (for general questions about Amundi Pioneer only) Visit our web site: www.amundipioneer.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] Amundi Pioneer ============== ASSET MANAGEMENT Amundi Pioneer Asset Management, Inc. 60 State Street Boston, MA 02109 www.amundipioneer.com Securities offered through Amundi Pioneer Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (C) 2017 Amundi Pioneer Asset Management 19440-11-1217 ITEM 2. CODE OF ETHICS. (a) Disclose whether, as of the end of the period covered by the report, the registrant has adopted a code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party. If the registrant has not adopted such a code of ethics, explain why it has not done so. The registrant has adopted, as of the end of the period covered by this report, a code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer and controller. (b) For purposes of this Item, the term "code of ethics" means written standards that are reasonably designed to deter wrongdoing and to promote: (1) Honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships; (2) Full, fair, accurate, timely, and understandable disclosure in reports and documents that a registrant files with, or submits to, the Commission and in other public communications made by the registrant; (3) Compliance with applicable governmental laws, rules, and regulations; (4) The prompt internal reporting of violations of the code to an appropriate person or persons identified in the code; and (5) Accountability for adherence to the code. (c) The registrant must briefly describe the nature of any amendment, during the period covered by the report, to a provision of its code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item. The registrant must file a copy of any such amendment as an exhibit pursuant to Item 10(a), unless the registrant has elected to satisfy paragraph (f) of this Item by posting its code of ethics on its website pursuant to paragraph (f)(2) of this Item, or by undertaking to provide its code of ethics to any person without charge, upon request, pursuant to paragraph (f)(3) of this Item. The registrant has made no amendments to the code of ethics during the period covered by this report. (d) If the registrant has, during the period covered by the report, granted a waiver, including an implicit waiver, from a provision of the code of ethics to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, that relates to one or more of the items set forth in paragraph (b) of this Item, the registrant must briefly describe the nature of the waiver, the name of the person to whom the waiver was granted, and the date of the waiver. Not applicable. (e) If the registrant intends to satisfy the disclosure requirement under paragraph (c) or (d) of this Item regarding an amendment to, or a waiver from, a provision of its code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item by posting such information on its Internet website, disclose the registrant's Internet address and such intention. Not applicable. (f) The registrant must: (1) File with the Commission, pursuant to Item 12(a)(1), a copy of its code of ethics that applies to the registrant's principal executive officer,principal financial officer, principal accounting officer or controller, or persons performing similar functions, as an exhibit to its annual report on this Form N-CSR (see attachment); (2) Post the text of such code of ethics on its Internet website and disclose, in its most recent report on this Form N-CSR, its Internet address and the fact that it has posted such code of ethics on its Internet website; or (3) Undertake in its most recent report on this Form N-CSR to provide to any person without charge, upon request, a copy of such code of ethics and explain the manner in which such request may be made. 	See Item 10(2) ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. (a) (1) Disclose that the registrant's board of trustees has determined that the registrant either: (i) Has at least one audit committee financial expert serving on its audit committee; or (ii) Does not have an audit committee financial expert serving on its audit committee. The registrant's Board of Trustees has determined that the registrant has at least one audit committee financial expert. (2) If the registrant provides the disclosure required by paragraph (a)(1)(i) of this Item, it must disclose the name of the audit committee financial expert and whether that person is "independent." In order to be considered "independent" for purposes of this Item, a member of an audit committee may not, other than in his or her capacity as a member of the audit committee, the board of trustees, or any other board committee: (i) Accept directly or indirectly any consulting, advisory, or other compensatory fee from the issuer; or (ii) Be an "interested person" of the investment company as defined in Section 2(a)(19) of the Act (15 U.S.C. 80a-2(a)(19)). Ms. Marguerite A. Piret, an independent trustee, is such an audit committee financial expert. (3) If the registrant provides the disclosure required by paragraph (a)(1) (ii) of this Item, it must explain why it does not have an audit committee financial expert. Not applicable. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. (a) Disclose, under the caption AUDIT FEES, the aggregate fees billed for each of the last two fiscal years for professional services rendered by the principal accountant for the audit of the registrant's annual financial statements or services that are normally provided by the accountant in connection with statutory and regulatory filings or engagements for those fiscal years. The audit fees for the Trust were $70,000 payable to Ernst & Young LLP for the year ended October 31, 2017 and $107,389 payable to Deloitte & Touche LLP for the year ended October 31, 2016. (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. There were no audit-related services in 2017 or 2016. (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. The tax fees for the Trust were $20,230 payable to Ernst & Young LLP for the year ended October 31, 2017 and $17,556 payable to Deloitte & Touche LLP for the year ended October 31, 2016. (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. There were no other fees in 2017 or 2016. (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 Amundi Pioneer Asset Management, Inc, 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. Non-Audit Services Beginning with non-audit service contracts entered into on or after May 6, 2003, the effective date of the new SEC pre-approval rules, the Trust's audit committee is required to pre-approve services to affiliates defined by SEC rules to the extent that the services are determined to have a direct impact on the operations or financial reporting of the Trust. For the years ended October 31 2017 and 2016, there were no services provided to an affiliate that required the Trust's audit committee pre-approval. (f) If greater than 50 percent, disclose the percentage of hours expended on the principal accountants engagement to audit the registrant's financial statements for the most recent fiscal year that were attributed to work performed by persons other than the principal accountant's full-time, permanent employees. N/A (g) Disclose the aggregate non-audit fees billed by the registrants accountant for services rendered to the registrant, and rendered to the registrants investment adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant for each of the last two fiscal years of the registrant. The aggregate non-audit fees for the Trust were $20,230 payable to Ernst & Young LLP for the year ended October 31, 2017 and $17,556 payable to Deloitte & Touche LLP for the year ended October 31, 2016. (h) Disclose whether the registrants audit committee of the board of trustees has considered whether the provision of non-audit services that were rendered to the registrants investment adviser (not including any subadviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. The Fund's audit committee of the Board of Trustees has considered whether the provision of non-audit services that were rendered to the Affiliates (as defined) that were not pre- approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. ITEM 5. AUDIT COMMITTEE OF LISTED REGISTRANTS (a) If the registrant is a listed issuer as defined in Rule 10A-3 under the Exchange Act (17 CFR 240.10A-3), state whether or not the registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Exchange Act (15 U.S.C. 78c(a)(58)(A)). If the registrant has such a committee, however designated, identify each committee member. If the entire board of directors is acting as the registrant's audit committee as specified in Section 3(a)(58)(B) of the Exchange Act (15 U.S.C. 78c(a)(58)(B)), so state. N/A (b) If applicable, provide the disclosure required by Rule 10A-3(d) under the Exchange Act (17 CFR 240.10A-3(d)) regarding an exemption from the listing standards for audit committees. N/A ITEM 6. SCHEDULE OF INVESTMENTS. File Schedule of Investments in securities of unaffiliated issuers as of the close of the reporting period as set forth in 210.1212 of Regulation S-X [17 CFR 210.12-12], unless the schedule is included as part of the report to shareholders filed under Item 1 of this Form. Included in Item 1 ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. A closed-end management investment company that is filing an annual report on this Form N-CSR must, unless it invests exclusively in non-voting securities, describe the policies and procedures that it uses to determine how to vote proxies relating to portfolio securities, including the procedures that the company uses when a vote presents a conflict between the interests of its shareholders, on the one hand, and those of the company's investment adviser; principal underwriter; or any affiliated person (as defined in Section 2(a)(3) of the Investment Company Act of 1940 (15 U.S.C. 80a-2(a)(3)) and the rules thereunder) of the company, its investment adviser, or its principal underwriter, on the other. Include any policies and procedures of the company's investment adviser, or any other third party, that the company uses, or that are used on the company's behalf, to determine how to vote proxies relating to portfolio securities. Not applicable to open-end management investment companies. ITEM 8. PORTFOLIO MANAGERS OF CLOSED-END MANAGEMENT INVESTMENT COMPANIES. (a) If the registrant is a closed-end management investment company that is filing an annual report on this Form N-CSR,provide the following information: (1) State the name, title, and length of service of the person or persons employed by or associated with the registrant or an investment adviser of the registrant who are primarily responsible for the day-to-day management of the registrant's portfolio ("Portfolio Manager"). Also state each Portfolio Manager's business experience during the past 5 years. Not applicable to open-end management investment companies. ITEM 9. PURCHASES OF EQUITY SECURITIES BY CLOSED-END MANAGEMENT INVESTMENT COMPANY AND AFFILIATED PURCHASERS. (a) If the registrant is a closed-end management investment company, in the following tabular format, provide the information specified in paragraph (b) of this Item with respect to any purchase made by or on behalf of the registrant or any affiliated purchaser, as defined in Rule 10b-18(a)(3) under the Exchange Act (17 CFR 240.10b-18(a)(3)), of shares or other units of any class of the registrant's equity securities that is registered by the registrant pursuant to Section 12 of the Exchange Act (15 U.S.C. 781). Not applicable to open-end management investment companies. ITEM 10. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS. Describe any material changes to the procedures by which shareholders may recommend nominees to the registrant's board of directors, where those changes were implemented after the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R(17 CFR 229.407)(as required by Item 22(b)(15)) of Schedule 14A (17 CFR 240.14a-101), or this Item. There have been no material changes to the procedures by which the shareholders may recommend nominees to the registrant's board of directors since the registrant last provided disclosure in response to the requirements of Item 407(c)(2)(iv) of Regulation S-R of Schedule 14(A) in its definitive proxy statement, or this item. ITEM 11. CONTROLS AND PROCEDURES. (a) Disclose the conclusions of the registrant's principal executive and principal financials officers, or persons performing similar functions, regarding the effectiveness of the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Act (17 CFR 270.30a-3(c))) as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the Act (17 CFR 270.30(a)-3(b) and Rules 13a-15(b) or 15d-15(b) under the Exchange Act (17 CFR 240.13a-15(b) or 240.15d-15(b)). The registrant's principal executive officer and principal financial officer have concluded that the registrant's disclosure controls and procedures are effective based on the evaluation of these controls and procedures as of a date within 90 days of the filing date of this report. (b) Disclose any change in the registrant's internal control over financial reporting (as defined in Rule 30a-3(d) under the Act (17CFR 270.30a-3(d)) that occured during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. There were no significant changes in the registrant's internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. The registrant's principal executive officer and principal financial officer, however, voluntarily are reporting the following information: In August of 2006 the registrant's investment adviser enhanced its internal procedures for reporting performance information required to be included in prospectuses. Those enhancements involved additional internal controls over the appropriateness of performance data generated for this purpose. Such enhancements were made following an internal review which identified prospectuses relating to certain classes of shares of a limited number of registrants where, inadvertently, performance information not reflecting the deduction of applicable sales charges was included. Those prospectuses were revised, and the revised prospectuses were distributed to shareholders. ITEM 12. EXHIBITS. (a) File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated. (1) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the registrant intends to satisfy the Item 2 requirements through filing of an exhibit. (2) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2(a)) , exactly as set forth below: Filed herewith. SIGNATURES [See General Instruction F] Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) Pioneer Series Trust VII By (Signature and Title)* /s/ Lisa M. Jones Lisa M. Jones, President & Chief Executive Officer Date December 29, 2017 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By (Signature and Title)* /s/ Lisa M. Jones Lisa M. Jones, President & Chief Executive Officer Date December 29, 2017 By (Signature and Title)* /s/ Mark E. Bradley Mark E. Bradley, Treasurer & Chief Accounting & Financial Officer Date December 29, 2017 * Print the name and title of each signing officer under his or her signature.