OMB APPROVAL OMB Number: 3235-0570 Expires: August 31, 2013 Estimated average burden hours per response.....18.9 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-CSR CERTIFIED SHAREHOLDER REPORT OF REGISTERED MANAGEMENT INVESTMENT COMPANIES 		Investment Company Act file number 811-07318 Pioneer International Value Fund (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Terrence J. Cullen, Pioneer Investment Management, Inc., 60 State Street, Boston, MA 02109 (Name and address of agent for service) Registrant's telephone number, including area code: (617) 742-7825 Date of fiscal year end: November 30 Date of reporting period: December 1, 2011 through May 31, 2012 Form N-CSR is to be used by management investment companies to file reports with the Commission not later than 10 days after the transmission to stockholders of any report that is required to be transmitted to stockholders under Rule 30e-1 under the Investment Company Act of 1940 (17 CFR 270.30e-1). The Commission may use the information provided on Form N-CSR in its regulatory, disclosure review, inspection, and policymaking roles. A registrant is required to disclose the information specified by Form N-CSR, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-CSR unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 450 Fifth Street, NW, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. ss. 3507. ITEM 1. REPORTS TO SHAREOWNERS. Pioneer International Value Fund -------------------------------------------------------------------------------- Semiannual Report | May 31, 2012 -------------------------------------------------------------------------------- Ticker Symbols: Class A PIIFX Class B PBIFX Class C PCITX Class Y INVYX [LOGO] PIONEER Investments(R) visit us: us.pioneerinvestments.com Table of Contents Letter to Shareowners 2 Portfolio Management Discussion 4 Portfolio Summary 9 Prices and Distributions 10 Performance Update 11 Comparing Ongoing Fund Expenses 15 Schedule of Investments 17 Financial Statements 25 Notes to Financial Statements 33 Trustees, Officers and Service Providers 42 Pioneer International Value Fund | Semiannual Report | 5/31/12 1 President's Letter Dear Shareowner, The U.S. economy continued its recovery through the first quarter of 2012, even as broader global concerns weighed on investors. The U.S. unemployment rate fell to 8.1% in April, and some indicators suggest that it may continue to trend down. The housing market continued to improve, fueled in part by record-low mortgage rates. The risk of rising oil prices appeared to recede. The improved outlook helped U.S. equity markets to perform well in the first quarter, with the Standard & Poor's 500 Index rising by 12%. For bond investors, the riskier sectors of the bond market fared the best. The broad bond market, as measured by the Barclays Capital Aggregate Bond Index, rose by just 0.3%, while the high-yield bond market, as measured by the Bank of America Merrill Lynch High Yield Master II Index,rose by 5.15%. We are cautiously optimistic that the U.S. economy will continue to improve. But we are also closely monitoring macroeconomic concerns that could change the market's direction, such as the lingering debt woes in Europe, the state of the Chinese economy, and the U.S. government's fiscal situation. Clouds have continued to hover over Europe, as the exit of Greece from the Euro-zone remains a possibility. Meanwhile, China continues to face a potential slowdown in economic growth. In the U.S., tax increases and spending cuts scheduled to take effect at year-end should, unless fiscal policy changes, sharply reduce the budget deficit--which would be very good for the country in the longer run--but also could potentially stall U.S economic growth in 2013. All of these considerations may lead to further market volatility. At Pioneer, we have long advocated the benefits of staying diversified* and investing for the long term. The strategy has generally performed well for many investors. Our advice, as always, is to work closely with a trusted financial advisor to discuss your goals and work together to develop an investment strategy that meets your individual needs. There is no single best strategy that works for every investor. Pioneer's investment professionals focus on finding good opportunities to invest in both equity and bond markets using the same disciplined investment approach we have used since 1928. Our strategy is to identify undervalued individual securities with the greatest potential for success, carefully weighing risk against reward. Our teams of investment professionals * Diversification does not assure a profit or protect against loss in a declining market. 2 Pioneer International Value Fund | Semiannual Report | 5/31/12 continually monitor and analyze the relative valuations of different sectors and securities globally to help build portfolios that we believe can help you achieve your investment goals. We invite you to learn more about Pioneer and our time-tested approach to investing by consulting with your financial advisor or visiting us online at us. pioneerinvestments.com. We greatly appreciate your trust in us and we thank you for investing with Pioneer. Sincerely, /s/ Daniel K. Kingsbury Daniel K. Kingsbury President and CEO Pioneer Investment Management USA, Inc. Any information in this shareowner report regarding market or economic trends or the factors influencing the Trust's historical or future performance are statements of opinion as of the date of this report. These statements should not be relied upon for any other purposes. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Pioneer International Value Fund | Semiannual Report | 5/31/12 3 Portfolio Management Discussion | 5/31/12 In the follow interview, Marco Pirondini, head of equities, U.S., and portfolio manager for Pioneer in Boston, and Andrea Salvatori, senior vice president, portfolio manager, and a member of Pioneer's international investment team in Dublin, Ireland, discuss the factors that influenced Pioneer International Value Fund's performance for the six-month period ended May 31, 2012, and their outlook for the coming months. Q Could you describe the factors that contributed to the market's roller-coaster volatility during the six months ended May 31, 2012? A After a strong rally in higher-risk assets for much of the six-month period, concerns about Europe's debt crisis and slower growth in China sent international stock prices lower during the final weeks of the period - enough to erase 2012's previous gains. With investors curbing their risk tolerance and moving to the sidelines, the more traditional safe havens, such as gold and core government bonds, rallied. International markets have swung from troughs marked by extreme risk-aversion to peaks defined by incredibly high asset-class correlations. We think the monolithic price movements have been in response to the larger macroeconomic economic picture that has been driving investors' decisions, rather than being due to assessments of the underlying fundamentals of individual companies, or their stock prices. Given the Fund's fundamental, value-based approach to selecting international stocks, it has been quite challenging for us to navigate the portfolio's positioning in that environment, as investors seem to be influenced more by shorter-term considerations, such as stock-price momentum and earnings visibility. In managing the portfolio, our perspective is more long-term in nature, with an investment horizon of three to five years, and our process is rooted in finding financially sound companies that are competitive, and that can adapt to changing market conditions. Q How did Pioneer International Value Fund perform in that environment during the six months ended May 31, 2012? A During the six months ended May 31, 2012, Pioneer International Value Fund's Class A shares returned -7.55% at net asset value, while the Fund's benchmark, the Morgan Stanley Capital International (MSCI) Europe, Australasia, Far East (EAFE) Index1, returned -4.34%. During the same period, the average return for the 228 mutual funds in Lipper's International Multi-Cap Core Funds category was -3.78%. 4 Pioneer International Value Fund | Semiannual Report | 5/31/12 Q What was the main reason behind the Fund's underperformance of the MSCI EAFE Index during the six months ended May 31, 2012, and what individual investments were the biggest detractors from the Fund's performance during the period? A Stock selection, especially in the financials sector, was quite detrimental to the Fund's performance and was the primary reason that the Fund underperformed its benchmark during the six-month period. The Fund's holding in Banca Intesa was especially disappointing, as the company's stock price sat at a multi-year low as of period end in terms of valuation, even though the bank's earnings and capital accumulations have been good. It seems that in a market driven more by macroeconomic factors and risk-aversion, sovereign-debt issues were foremost on the minds of investors, thus obfuscating any rational consideration of a company's underlying fundamentals. Even the mere presence of financials stocks in the portfolio was, for the most part, a drag on performance during the period, due to the deepening debt crisis. The Fund took a beating in financials during the period despite the fact that the portfolio actually was slightly underweight in the sector, and that we had correctly forecasted a very cautious positioning on European banks. In addition to Banca Intesa, other financials holdings that hurt Fund performance significantly during the period were Societe Generale and Man Group. The Fund's investments in the basic materials sector also lagged during the period, especially positions in gold-related stocks, which declined in response to falling demand when investors moved out of gold along with other higher-risk assets during the market correction. In energy, a holding in the Spanish oil and gas company Repsol also detracted from the Fund's results. Repsol owns a 57% interest in the Argentinian oil company YPF, which was nationalized by the government. The loss of YPF from Repsol's portfolio has had a material effect on the company's performance, especially as the assets were providing both cash flow and growth potential for Repsol. Q What investment decisions or individual holdings made a positive contribution to the Fund's returns during the six months ended May 31, 2012? A Having underweight exposure to Europe and euro-denominated holdings relative to the MSCI EAFE Index proved to be a good investment decision and aided the Fund's performance during the six-month period, given the challenges across the region. As for specific investments, the Fund's holdings in Chinese banks and the U.S.-based Capital One Financial provided better results than the portfolio's other financials stocks during the period, which we believe illustrates the importance of diversification* within the portfolio. * Diversification does not assure a profit or protect against loss in a declining market. Pioneer International Value Fund | Semiannual Report | 5/31/12 5 Another positive for Fund performance during the period was the addition of HTC to the portfolio. HTC is a global leader in mobile design and innovations, including smartphones and tablets powered by the Android or Window Phone operating systems. We purchased HTC when the stock was selling at what was, in our opinion, an extremely cheap valuation. Given HTC's longstanding working relationship with technology leaders such as Google, Microsoft, and Qualcomm, we believed that the company's product momentum would begin to have a favorable effect on HTC's earnings. The stock appreciated sharply after we purchased it, and we sold HTC from the portfolio in late February 2012, to lock in the gains. Q What is your current assessment of the European sovereign-debt crisis? A A few weeks after the close of the semiannual reporting period on May 31, 2012, Spain accepted a European bailout to help stabilize its cash-starved banks and stem losses in the banks' real estate loan portfolios. Spain is the fourth euro zone nation to receive aid, following in the footsteps of Greece, Ireland, and Portugal. Shortly afterward, the Greek people headed to the polls for the second time in two months and voted by a narrow margin to approve their country's bailout - reducing fears that Greece would exit the European Union (E.U.). Greece faces weeks or months of negotiations with European leaders over the terms of austerity measures the country will be forced to undertake, but the election could be a turning point in the crisis, as it implies that Greece is likely to remain in the E.U. fold. With that hurdle surmounted, investors breathed a sigh of relief, but much work remains. The 17-nation euro zone avoided a recession in the first quarter of 2012, but many economists expect the gross domestic product of the region to decline for a second straight quarter, which would officially push the region into recession. We think such a recession may last two or three more quarters. Furthermore, it appears that the calming effects of the European Central Bank's (ECB's) emergency funding measures are fading. Blending fiscal austerity with economic reforms is a difficult task for any of the struggling member nations, but especially so during a recession. Q Have you adjusted the Fund's strategy in response to the market conditions that prevailed during the six months ended May 31, 2012? A Throughout the period, we maintained the Fund's defensive bias, which was defined by a below-benchmark weighting in European banks and commodity-related stocks. The positioning is based on our belief that Europe remains embroiled in the sovereign-debt crisis, with its dampening impact on the region's financial institutions and global growth. 6 Pioneer International Value Fund | Semiannual Report | 5/31/12 With the dramatic moves in stock prices during the six-month period, we took advantage of the fluctuations to sell some Fund holdings that had become expensive or overvalued relative to their growth potential, in our estimation, and invested the proceeds in stocks that we believed were offering better value, quality, and dividend yields. In the process, we have brought the portfolio more in line with the MSCI EAFE Index, the Fund's benchmark. Geographically speaking, we have found investment opportunities in Japan and, selectively, among Europe's oversold markets. GlaxoSmithKline (GSK) exemplifies our investment strategy and has performed well for the Fund. GSK is a British multinational pharmaceutical company that has seen strong underlying sales performance across its pharmaceutical, vaccines, and consumer health care divisions. GSK is committed to tackling HIV/AIDS, tuberculosis and malaria - three priority diseases as identified by the World Health Organization. GSK has offered strong sales growth and cash generation, significant progress in its research and development efforts, and provides an attractive 5% dividend yield** as a way of returning value to shareholders. Q What is your outlook for international equity markets in the coming months? A As of May 31, 2012, risk-aversion has been defining the market environment, with credit spreads (the difference in yield between Treasury securities and other fixed-income securities with similar maturities) rising and international equities struggling. We have seen the scenario play out many times over the last two years. The shelter provided by central banks' extraordinarily supportive policies, notably the ECB's, should contain the volatility to some extent, but some bold initiatives by political leaders may also be needed to restore a degree of certainty to calm investors and ease the extreme bouts of market volatility. The debate about Greece's leaving the euro zone has created a dialogue about a watershed event that could open the way for some very different and uncharted scenarios. Those could range from a "soft landing" and gradual phasing out of the European Monetary Union (EMU), to a more radical dissolution which separates the strong countries from the weak, to an outright collapse, under a worst-case scenario. European leaders have responded to the crisis with a series of partial measures that have held the EMU and banks together. After 13 years of working closely together, the EMU is a much deeper union than a mere free-trade area whose members may come and go as they please. However, speculation about a "new" EMU may linger for a while, thus contributing to uncertainty and volatility in the financial markets. ** Dividends are not guaranteed. Pioneer International Value Fund | Semiannual Report | 5/31/12 7 Although we think the global economic situation is at far from panic levels, we see few catalysts that may boost investors' outlook and risk appetites again in the near term. However, we still believe that myriad investment opportunities remain on a stock-by-stock basis, especially in undervalued international stocks that have been unfairly tarnished during the market's reversals. (1) The MSCI information may only be used for your internal use, may not be reproduced or re-disseminated in any form and may not be used as a basis for or a component of any financial instruments or products or indices. None of the MSCI information is intended to constitute investment advice or a recommendation to make (or refrain from making) any kind of investment decision and may not be relied on as such. Historical data and analysis should not be taken as an indication or guarantee of any future performance analysis, forecast or prediction. The MSCI information is provided on an "as is" basis and the user of this information assumes the entire risk of any use made of this information. MSCI, each of its affiliates and each other person involved in or related to compiling, computing or creating any MSCI information (collectively, the "MSCI Parties") expressly disclaims all warranties (including, without limitation, any warranties of originality, accuracy, completeness, timeliness, non-infringement, merchantability and fitness for a particular purpose) with respect to this information. Without limiting any of the foregoing, in no event shall any MSCI Party have any liability for any direct, indirect, special, incidental, punitive, consequential (including, without limitation, lost profits) or any other damages. Please refer to the Schedule of Investments on pages 17-24 for a full listing of Fund securities. Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates, economic, and political conditions. The Fund may invest a substantial amount of its assets in issuers located in a limited number of countries and therefore is susceptible to adverse economic, political or regulatory developments affecting those countries. 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 or sectors. These risks may increase share price volatility. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. Any information in this shareholder report regarding market or economic trends or the factors influencing the Fund's historical or future performance are statements of the opinion of Fund management as of the date of this report. These statements should not be relied upon for any other purposes. 8 Pioneer International Value Fund | Semiannual Report | 5/31/12 Portfolio Summary | 5/31/12 Sector Distribution -------------------------------------------------------------------------------- (As a percentage of total long-term holdings) [THE FOLLOWING DATA WAS REPRESENTED AS A PIE CHART IN THE PRINTED MATERIAL] Financials 18.8% Industrials 13.6% Consumer Staples 11.6% Materials 11.4% Consumer Discretionary 9.3% Energy 8.8% Health Care 8.1% Telecommunication Services 6.4% Information Technology 6.0% Utilities 6.0% Geographical Distribution -------------------------------------------------------------------------------- (As a percentage of total long-term holdings) [THE FOLLOWING DATA WAS REPRESENTED AS A BAR CHART IN THE PRINTED MATERIAL] Japan 17.1% United Kingdom 13.4% Switzerland 8.7% Hong Kong 8.4% Germany 6.2% France 5.9% Italy 5.3% United States 4.5% Brazil 3.2% Ireland 3.2% Russian Federation 2.9% Sweden 2.6% South Africa 2.3% Korea, Republic of 2.2% Luxembourg 2.2% Australia 2.1% Philippines 1.3% Mexico 1.2% Other (individually less than 1%) 7.3% 10 Largest Holdings -------------------------------------------------------------------------------- (As a percentage of total long-term holdings)* 1. GlaxoSmithKline Plc 3.23% -------------------------------------------------------------------------------- 2. Lukoil OAO (A.D.R.) 2.98 -------------------------------------------------------------------------------- 3. Nestle SA 2.86 -------------------------------------------------------------------------------- 4. FamilyMart Co., Ltd. 2.76 -------------------------------------------------------------------------------- 5. ITOCHU Corp. 2.69 -------------------------------------------------------------------------------- 6. BP Plc 2.22 -------------------------------------------------------------------------------- 7. Ryanair Holdings Plc 2.21 -------------------------------------------------------------------------------- 8. Intesa Sanpaolo S.p.A. 2.06 -------------------------------------------------------------------------------- 9. Fresenius Medical Care AG & Co., KGaA 1.98 -------------------------------------------------------------------------------- 10. Sekisui Chemical Co., Ltd. 1.98 -------------------------------------------------------------------------------- * 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 International Value Fund | Semiannual Report | 5/31/12 9 Prices and Distributions | 5/31/12 Net Asset Value per Share -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Class 5/31/12 11/30/11 -------------------------------------------------------------------------------- A $16.38 $17.99 -------------------------------------------------------------------------------- B $14.84 $16.17 -------------------------------------------------------------------------------- C $14.60 $15.97 -------------------------------------------------------------------------------- Y $16.40 $18.07 -------------------------------------------------------------------------------- Distributions per Share: 12/1/11-5/31/12 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Net Investment Short-Term Long-Term Class Income Capital Gains Capital Gains -------------------------------------------------------------------------------- A $0.2619 $ -- $ -- -------------------------------------------------------------------------------- B $0.0473 $ -- $ -- -------------------------------------------------------------------------------- C $0.1060 $ -- $ -- -------------------------------------------------------------------------------- Y $0.3502 $ -- $ -- -------------------------------------------------------------------------------- The MSCI EAFE Index is a commonly used measure of international stocks. Index returns are calculated monthly, assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. It is not possible to invest directly in an index. The index defined here pertains to the "Value of $10,000 Investment" and "Value of $5 Million Investment" charts on pages 11-14. 10 Pioneer International Value Fund | Semiannual Report | 5/31/12 Performance Update | 5/31/12 Class A Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer International Value Fund at public offering price, compared to that of the Morgan Stanley Capital International (MSCI) Europe, Australasia and Far East (EAFE) Index. Average Annual Total Returns (As of May 31, 2012) -------------------------------------------------------------------------------- Net Asset Public Offering Period Value (NAV) Price (POP) -------------------------------------------------------------------------------- 10 Years 1.98% 1.38% 5 Years -8.78 -9.85 1 Year -21.06 -25.62 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated April 1, 2012) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 1.77% 1.45% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer International MCSI EAFE Value Fund Index 5/31/2002 $ 9,425 $ 10,000 5/31/2003 $ 7,910 $ 8,770 5/31/2004 $ 9,861 $ 11,634 5/31/2005 $ 11,048 $ 13,335 5/31/2006 $ 14,464 $ 17,102 5/31/2007 $ 18,151 $ 21,692 5/31/2008 $ 17,570 $ 21,143 5/31/2009 $ 11,245 $ 13,403 5/31/2010 $ 11,395 $ 14,289 5/31/2011 $ 14,525 $ 18,634 5/31/2012 $ 11,466 $ 14,817 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. NAV results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. POP returns reflect deduction of maximum 5.75% sales charge. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects contractual expense limitations currently in effect through April 1, 2013 for Class A shares. There can be no assurance that Pioneer will extend the expense limitations beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer International Value Fund | Semiannual Report | 5/31/12 11 Performance Update | 5/31/12 Class B Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer International Value Fund, compared to that of the Morgan Stanley Capital International (MSCI) Europe, Australasia and Far East (EAFE) Index. Average Annual Total Returns (As of May 31, 2012) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- 10 Years 0.98% 0.98% 5 Years -9.59 -9.59 1 Year -21.78 -24.90 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated April 1, 2012) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.94% 2.35% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer International MCSI EAFE Value Fund Index 5/31/2002 $ 10,000 $ 10,000 5/31/2003 $ 8,295 $ 8,770 5/31/2004 $ 10,199 $ 11,634 5/31/2005 $ 11,314 $ 13,335 5/31/2006 $ 14,679 $ 17,102 5/31/2007 $ 18,258 $ 21,692 5/31/2008 $ 17,519 $ 21,143 5/31/2009 $ 11,112 $ 13,403 5/31/2010 $ 11,157 $ 14,289 5/31/2011 $ 14,098 $ 18,634 5/31/2012 $ 11,028 $ 14,817 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. "If Redeemed" returns reflect the deduction of applicable contingent deferred sales charge (CDSC). The maximum CDSC for Class B shares is 4% and declines over five years. For more complete information, please see the prospectus. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects contractual expense limitations currently in effect through April 1, 2013 for Class B shares. There can be no assurance that Pioneer will extend the expense limitations beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 12 Pioneer International Value Fund | Semiannual Report | 5/31/12 Performance Update | 5/31/12 Class C Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer International Value Fund, compared to that of the Morgan Stanley Capital International (MSCI) Europe, Australasia and Far East (EAFE) Index. Average Annual Total Returns (As of May 31, 2012) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- 10 Years 1.03% 1.03% 5 Years -9.59 -9.59 1 Year -21.76 -21.76 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated April 1, 2012) -------------------------------------------------------------------------------- Gross Net -------------------------------------------------------------------------------- 2.52% 2.35% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $10,000 Investment Pioneer International MCSI EAFE Value Fund Index 5/31/2002 $ 10,000 $ 10,000 5/31/2003 $ 8,302 $ 8,770 5/31/2004 $ 10,194 $ 11,634 5/31/2005 $ 11,331 $ 13,335 5/31/2006 $ 14,712 $ 17,102 5/31/2007 $ 18,340 $ 21,692 5/31/2008 $ 17,612 $ 21,143 5/31/2009 $ 11,160 $ 13,403 5/31/2010 $ 11,205 $ 14,289 5/31/2011 $ 14,159 $ 18,634 5/31/2012 $ 11,078 $ 14,817 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class C shares held for less than one year are also subject to a 1% contingent deferred sales charge (CDSC). The performance of Class C shares does not reflect the 1% front-end sales charge in effect prior to February 1, 2004. If you paid a 1% sales charge, your returns would be lower than those shown above. "If Held" results represent the percent change in net asset value per share. Returns would have been lower had sales charges been reflected. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The net expense ratio reflects contractual expense limitations currently in effect through April 1, 2013 for Class C shares. There can be no assurance that Pioneer will extend the expense limitations beyond such time. Please see the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. Pioneer International Value Fund | Semiannual Report | 5/31/12 13 Performance Update | 5/31/12 Class Y Shares Investment Returns -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $5 million investment made in Pioneer International Value Fund, compared to that of the Morgan Stanley Capital International (MSCI) Europe, Australasia and Far East (EAFE) Index. Average Annual Total Returns (As of May 31, 2012) -------------------------------------------------------------------------------- If If Period Held Redeemed -------------------------------------------------------------------------------- 10 Years 1.71% 1.71% 5 Years -9.10 -9.10 1 Year -20.75 -20.75 -------------------------------------------------------------------------------- Expense Ratio (Per prospectus dated April 1, 2012) -------------------------------------------------------------------------------- Gross -------------------------------------------------------------------------------- 1.01% -------------------------------------------------------------------------------- [THE FOLLOWING DATA WAS REPRESENTED AS A MOUNTAIN CHART IN THE PRINTED MATERIAL] Value of $5 Million Investment Pioneer International MCSI EAFE Value Fund Index 5/31/2002 $ 5,000,000 $ 5,000,000 5/31/2003 $ 4,197,183 $ 4,384,847 5/31/2004 $ 5,232,394 $ 5,817,093 5/31/2005 $ 5,862,676 $ 6,667,616 5/31/2006 $ 7,675,300 $ 8,550,764 5/31/2007 $ 9,550,559 $ 10,845,874 5/31/2008 $ 9,089,781 $ 10,571,274 5/31/2009 $ 5,737,944 $ 6,701,322 5/31/2010 $ 5,836,661 $ 7,144,494 5/31/2011 $ 7,477,866 $ 9,316,926 5/31/2012 $ 5,926,435 $ 7,408,398 Call 1-800-225-6292 or visit us.pioneerinvestments.com for the most recent month-end performance results. Current performance may be lower or higher than the performance data quoted. The performance data quoted represents past performance, which is no guarantee of future results. Investment return and principal value will fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Class Y shares were first publicly offered on April 16, 2009. Performance shown for periods prior to the inception of Class Y shares reflects the NAV performance of the Fund's Class A shares. The performance does not reflect differences in expenses, including the Rule 12b-1 fees applicable to Class A shares. Since fees for Class A shares are generally higher than those of Class Y shares, the performance for Class Y shares prior to their inception would have been higher than the performance shown. Class Y shares are not subject to sales charges and are available for limited groups of eligible investors, including institutional investors. All results are historical and assume the reinvestment of dividends and capital gains. Other share classes are available for which performance and expenses will differ. Performance results reflect any applicable expense waivers in effect during the periods shown. Without such waivers Fund performance would be lower. Waivers may not be in effect for all funds. Certain fee waivers are contractual through a specified period. Otherwise, fee waivers can be rescinded at any time. See the prospectus and financial statements for more information. The performance table and graph do not reflect the deduction of fees and taxes that a shareowner would pay on Fund distributions or the redemption of Fund shares. 14 Pioneer International Value Fund | Semiannual Report | 5/31/12 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 International Value Fund Based on actual returns from December 1, 2011, through May 31, 2012. ---------------------------------------------------------------------------------------------------------- Share Class A B C Y ---------------------------------------------------------------------------------------------------------- Beginning Account Value on 12/1/11 $ 1,000.00 $ 1,000.00 $ 1,000.00 $ 1,000.00 ---------------------------------------------------------------------------------------------------------- Ending Account Value (after expenses) on 5/31/12 $ 924.50 $ 920.60 $ 920.60 $ 926.30 ---------------------------------------------------------------------------------------------------------- Expenses Paid During Period* $ 6.98 $ 11.28 $ 11.28 $ 4.72 ---------------------------------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio of 1.45%, 2.35%, 2.35% and 0.98% for Class A, Class B, Class C and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 183/366 (to reflect the one-half year period). Pioneer International Value Fund | Semiannual Report | 5/31/12 15 Hypothetical Example for Comparison Purposes The table below provides information about hypothetical account values and hypothetical expenses based on the Fund's actual expense ratio and an assumed rate of return of 5% per year before expenses, which is not the Fund's actual return. The hypothetical account values and expenses may not be used to estimate the actual ending account balance or expenses you paid for the period. You may use this information to compare the ongoing costs of investing in the Fund and other funds. To do so, compare this 5% hypothetical example with the 5% hypothetical examples that appear in the shareholder reports of the other funds. Please note that the expenses shown in the tables are meant to highlight your ongoing costs only and do not reflect any transaction costs, such as sales charges (loads), or redemption fees that are charged at the time of the transaction. Therefore, the table below is useful in comparing ongoing costs only and will not help you determine the relative total costs of owning different funds. In addition, if these transaction costs were included, your costs would have been higher. Expenses Paid on a $1,000 Investment in Pioneer International Value Fund Based on a hypothetical 5% return per year before expenses, reflecting the period from December 1, 2011, through May 31, 2012. ---------------------------------------------------------------------------------------------------------- Share Class A B C Y ---------------------------------------------------------------------------------------------------------- Beginning Account Value on 12/1/11 $ 1,000.00 $ 1,000.00 $ 1,000.00 $ 1,000.00 ---------------------------------------------------------------------------------------------------------- Ending Account Value (after expenses) on 5/31/12 $ 1,017.75 $ 1,013.25 $ 1,013.25 $ 1,020.25 ---------------------------------------------------------------------------------------------------------- Expenses Paid During Period* $ 7.31 $ 11.83 $ 11.83 $ 4.95 ---------------------------------------------------------------------------------------------------------- * Expenses are equal to the Fund's annualized expense ratio of 1.45%, 2.35%, 2.35% and 0.98% for Class A, Class B, Class C and Class Y shares, respectively, multiplied by the average account value over the period, multiplied by 183/366 (to reflect the one-half year period). 16 Pioneer International Value Fund | Semiannual Report | 5/31/12 Schedule of Investments | 5/31/12 (unaudited) -------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------- COMMON STOCKS -- 97.3% ENERGY -- 8.7% Oil & Gas Drilling -- 0.6% 33,700 Ensco Plc $ 1,513,467 -------------------------------------------------------------------------------- Integrated Oil & Gas -- 7.2% 957,656 BP Plc $ 5,821,773 149,300 Lukoil OAO (A.D.R.) 7,792,863 153,371 Repsol YPF SA 2,304,002 74,677 Total SA 3,231,795 ---------------- $ 19,150,433 -------------------------------------------------------------------------------- Oil & Gas Exploration & Production -- 0.9% 432 Inpex Corp. $ 2,484,266 ---------------- Total Energy $ 23,148,166 -------------------------------------------------------------------------------- MATERIALS -- 11.0% Fertilizers & Agricultural Chemicals -- 0.7% 47,910 Yara International ASA $ 1,816,273 -------------------------------------------------------------------------------- Construction Materials -- 2.3% 2,814,000 China Resources Cement Holdings, Ltd. $ 2,053,994 155,400 CRH Plc 2,662,024 1,139,000 Semen Gresik Persero Tbk PT 1,324,812 ---------------- $ 6,040,830 -------------------------------------------------------------------------------- Diversified Metals & Mining -- 2.8% 254,400 Eurasian Natural Resources Corp Plc $ 1,669,406 53,400 Freeport-McMoRan Copper & Gold, Inc. 1,710,936 21,600 Rio Tinto, Ltd. 1,193,494 99,553 Southern Copper Corp. 2,832,283 ---------------- $ 7,406,119 -------------------------------------------------------------------------------- Gold -- 3.2% 139,743 AngloGold Ashanti, Ltd. $ 5,037,424 2,076,500 Centamin Plc* 2,103,761 31,300 Newmont Mining Corp. 1,476,108 ---------------- $ 8,617,293 -------------------------------------------------------------------------------- Precious Metals & Minerals -- 0.4% 65,800 Impala Platinum Holdings, Ltd. $ 1,041,401 -------------------------------------------------------------------------------- Steel -- 1.6% 94,300 Ternium SA (A.D.R.) $ 1,786,042 135,900 Vale SA (A.D.R.) 2,488,329 ---------------- $ 4,274,371 -------------------------------------------------------------------------------- Forest Products -- 0.0% 157,400 Sino-Forest Corp.* (c) $ 0 ---------------- Total Materials $ 29,196,287 -------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer International Value Fund | Semiannual Report | 5/31/12 17 Schedule of Investments | 5/31/12 (unaudited) (continued) -------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------- CAPITAL GOODS -- 10.2% Construction & Engineering -- 0.9% 88,100 KBR, Inc. $ 2,243,907 -------------------------------------------------------------------------------- Heavy Electrical Equipment -- 2.1% 74,002 Alstom SA $ 2,153,027 449,000 Mitsubishi Electric Corp. 3,517,755 ---------------- $ 5,670,782 -------------------------------------------------------------------------------- Industrial Conglomerates -- 3.4% 7,160,500 Alliance Global Group, Inc. $ 2,048,327 157,600 Koninklijke Philips Electronics NV 2,789,925 693,000 Shanghai Industrial Holdings, Ltd. 1,933,919 28,100 Siemens AG (A.D.R.) 2,321,060 ---------------- $ 9,093,231 -------------------------------------------------------------------------------- Trading Companies & Distributors -- 3.8% 645,500 ITOCHU Corp. $ 7,043,790 3,576,100 Noble Group, Ltd. 3,080,371 ---------------- $ 10,124,161 ---------------- Total Capital Goods $ 27,132,081 -------------------------------------------------------------------------------- TRANSPORTATION -- 3.2% Airlines -- 2.2% 1,147,962 Ryanair Holdings Plc* $ 5,786,110 -------------------------------------------------------------------------------- Highways & Railtracks -- 1.0% 5,783,500 Yuexiu Transport Infrastructure, Ltd. $ 2,759,460 ---------------- Total Transportation $ 8,545,570 -------------------------------------------------------------------------------- AUTOMOBILES & COMPONENTS -- 2.6% Auto Parts & Equipment -- 0.2% 89,000 China XD Plastics Co., Ltd.* $ 429,870 -------------------------------------------------------------------------------- Tires & Rubber -- 1.3% 90,300 Bridgestone Corp. $ 1,922,022 162,000 Pirelli & Co., S.p.A. 1,618,360 ---------------- $ 3,540,382 -------------------------------------------------------------------------------- Automobile Manufacturers -- 1.1% 65,500 Daimler AG $ 3,040,307 ---------------- Total Automobiles & Components $ 7,010,559 -------------------------------------------------------------------------------- CONSUMER DURABLES & APPAREL -- 5.9% Homebuilding -- 1.9% 608,800 Sekisui Chemical Co., Ltd. $ 5,180,718 -------------------------------------------------------------------------------- Household Appliances -- 1.4% 190,000 Electrolux AB $ 3,628,206 -------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 18 Pioneer International Value Fund | Semiannual Report | 5/31/12 -------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------- Apparel, Accessories & Luxury Goods -- 2.6% 17,400 Christian Dior SA $ 2,283,997 81,799 Cie Financiere Richemont SA 4,682,990 ---------------- $ 6,966,987 ---------------- Total Consumer Durables & Apparel $ 15,775,911 -------------------------------------------------------------------------------- RETAILING -- 0.6% Automotive Retail -- 0.6% 15,400 USS Co., Ltd. $ 1,556,303 ---------------- Total Retailing $ 1,556,303 -------------------------------------------------------------------------------- FOOD & STAPLES RETAILING -- 2.7% Food Retail -- 2.7% 159,300 FamilyMart Co., Ltd. $ 7,230,741 ---------------- Total Food & Staples Retailing $ 7,230,741 -------------------------------------------------------------------------------- FOOD, BEVERAGE & TOBACCO -- 8.7% Soft Drinks -- 1.2% 41,600 Fomento Economico Mexicano SAB de CV (A.D.R.) $ 3,279,328 -------------------------------------------------------------------------------- Packaged Foods & Meats -- 3.7% 132,000 Nestle SA $ 7,499,200 70,891 Unilever Plc 2,241,068 ---------------- $ 9,740,268 -------------------------------------------------------------------------------- Tobacco -- 3.8% 141,914 Imperial Tobacco Group Plc $ 5,125,460 902 Japan Tobacco, Inc. 5,028,138 ---------------- $ 10,153,598 ---------------- Total Food, Beverage & Tobacco $ 23,173,194 -------------------------------------------------------------------------------- HEALTH CARE EQUIPMENT & SERVICES -- 1.9% Health Care Services -- 1.9% 78,175 Fresenius Medical Care AG & Co. KGaA $ 5,194,976 ---------------- Total Health Care Equipment & Services $ 5,194,976 -------------------------------------------------------------------------------- PHARMACEUTICALS, BIOTECHNOLOGY & LIFE SCIENCES -- 6.1% Pharmaceuticals -- 6.1% 380,500 GlaxoSmithKline Plc $ 8,446,617 48,900 Novartis AG 2,547,779 32,706 Roche Holding AG 5,129,612 ---------------- $ 16,124,008 ---------------- Total Pharmaceuticals, Biotechnology & Life Sciences $ 16,124,008 -------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer International Value Fund | Semiannual Report | 5/31/12 19 Schedule of Investments | 5/31/12 (unaudited) (continued) -------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------- BANKS -- 11.2% Diversified Banks -- 11.2% 373,500 Banco Santander Brasil SA (A.D.R.) $ 2,969,325 12,000,000 Bank Pembangunan Daerah Jawa Barat Dan Banten Tbk PT 1,160,242 1,181,100 Commerzbank AG* 1,949,896 4,313,600 Intesa Sanpaolo S.p.A.* 5,408,204 214,100 Itau Unibanco Holding SA (A.D.R.) 3,098,027 740,699 Mitsubishi UFJ Financial Group, Inc. 3,190,354 200,808 National Australia Bank, Ltd. 4,403,270 493,700 Philippine National Bank* 816,296 105,995 Societe Generale SA 2,135,589 160,200 Sumitomo Mitsui Financial Group, Inc. 4,653,118 ---------------- $ 29,784,321 ---------------- Total Banks $ 29,784,321 -------------------------------------------------------------------------------- DIVERSIFIED FINANCIALS -- 3.4% Multi-Sector Holdings -- 0.5% 1,302,000 First Pacific Co., Ltd. $ 1,340,248 -------------------------------------------------------------------------------- Specialized Finance -- 0.6% 33,300 Deutsche Boerse AG $ 1,591,791 -------------------------------------------------------------------------------- Consumer Finance -- 1.2% 58,600 Capital One Financial Corp. $ 3,010,282 -------------------------------------------------------------------------------- Asset Management & Custody Banks -- 0.0% 821 Reinet Investments SCA* $ 13,197 -------------------------------------------------------------------------------- Diversified Capital Markets -- 1.1% 155,220 Credit Suisse Group AG $ 2,966,781 ---------------- Total Diversified Financials $ 8,922,299 -------------------------------------------------------------------------------- INSURANCE -- 2.9% Life & Health Insurance -- 1.1% 320,200 T&D Holdings, Inc. $ 3,036,539 -------------------------------------------------------------------------------- Multi-line Insurance -- 1.8% 25,000 Allianz SE $ 2,265,965 596,460 Aviva Plc 2,407,280 ---------------- $ 4,673,245 ---------------- Total Insurance $ 7,709,784 -------------------------------------------------------------------------------- REAL ESTATE -- 0.4% Real Estate Development -- 0.4% 2,685,000 Unitech, Ltd. $ 1,041,991 ---------------- Total Real Estate $ 1,041,991 -------------------------------------------------------------------------------- TECHNOLOGY HARDWARE & EQUIPMENT -- 2.3% Communications Equipment -- 1.3% 397,700 Telefonaktiebolaget LM Ericsson $ 3,371,643 -------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. 20 Pioneer International Value Fund | Semiannual Report | 5/31/12 -------------------------------------------------------------------------------- Shares Value -------------------------------------------------------------------------------- Computer Storage & Peripherals -- 0.5% 222,000 Catcher Technology Co., Ltd. $ 1,405,385 -------------------------------------------------------------------------------- Electronic Manufacturing Services -- 0.5% 433,000 Hon Hai Precision Industry Co., Ltd. $ 1,262,196 ---------------- Total Technology Hardware & Equipment $ 6,039,224 -------------------------------------------------------------------------------- SEMICONDUCTORS & SEMICONDUCTOR EQUIPMENT -- 3.7% Semiconductor Equipment -- 1.5% 316,100 ASM Pacific Technology, Ltd. $ 3,880,922 -------------------------------------------------------------------------------- Semiconductors -- 2.2% 8,000 Samsung Electronics Co., Ltd. (G.D.R.) $ 4,129,473 94,320 SK Hynix, Inc. 1,842,109 ---------------- $ 5,971,582 ---------------- Total Semiconductors & Semiconductor Equipment $ 9,852,504 -------------------------------------------------------------------------------- TELECOMMUNICATION SERVICES -- 6.4% Integrated Telecommunication Services -- 2.0% 94,630 HKT Trust $ 72,067 4,353,000 PCCW, Ltd. 1,593,898 5,274,200 Telecom Italia S.p.A. 3,584,100 ---------------- $ 5,250,065 -------------------------------------------------------------------------------- Wireless Telecommunication Services -- 4.4% 261,700 China Mobile, Ltd. $ 2,651,578 724,100 Idea Cellular, Ltd.* 977,961 47,000 Millicom International Cellular SA 4,077,250 1,491,221 Vodafone Group Plc 3,994,969 ---------------- $ 11,701,758 ---------------- Total Telecommunication Services $ 16,951,823 -------------------------------------------------------------------------------- UTILITIES -- 5.4% Electric Utilities -- 0.8% 741,000 Enel S.p.A. $ 2,115,989 -------------------------------------------------------------------------------- Multi-Utilities -- 2.4% 131,500 GDF Suez $ 2,613,686 387,053 National Grid Plc 3,879,714 ---------------- $ 6,493,400 -------------------------------------------------------------------------------- Water Utilities -- 2.2% 3,956,800 Guangdong Investment, Ltd. $ 2,622,172 1,298,300 Manila Water Co., Inc. 737,147 229,685 Suez Environnement Co. 2,509,079 ---------------- $ 5,868,398 ---------------- Total Utilities $ 14,477,787 -------------------------------------------------------------------------------- TOTAL COMMON STOCKS (Cost $285,704,064) $ 258,867,529 -------------------------------------------------------------------------------- The accompanying notes are an integral part of these financial statements. Pioneer International Value Fund | Semiannual Report | 5/31/12 21 Schedule of Investments | 5/31/12 (unaudited) (continued) ----------------------------------------------------------------------------------------------------- Floating S&P/Moody's Principal Rate (d) Ratings Amount ($) (unaudited) (unaudited) Value ----------------------------------------------------------------------------------------------------- CORPORATE BONDS -- 1.0% MATERIALS -- 0.3% Paper Packaging -- 0.3% 765,000 BB/B1 Sealed Air Corp., 6.875%, 7/15/33 (144A) $ 742,050 -------------- Total Materials $ 742,050 ----------------------------------------------------------------------------------------------------- BANKS -- 0.7% Diversified Banks -- 0.7% EURO 700,000 5.02 BBB+/Baa3 BNP Paribas SA, Floating Rate Note, 4/29/49 (Perpetual) $ 601,679 EURO 1,400,000 8.05 BB+/Ba1 Intesa Sanpaolo S.p.A., Floating Rate Note, 6/29/49 (Perpetual) 1,246,644 -------------- $ 1,848,323 -------------- Total Banks $ 1,848,323 ----------------------------------------------------------------------------------------------------- TOTAL CORPORATE BONDS (Cost $2,595,124) $ 2,590,373 ----------------------------------------------------------------------------------------------------- TOTAL INVESTMENT IN SECURITIES -- 98.3% (Cost $288,299,188) (a) (b) $ 261,457,902 ----------------------------------------------------------------------------------------------------- OTHER ASSETS & LIABILITIES -- 1.7% $ 4,605,590 ----------------------------------------------------------------------------------------------------- TOTAL NET ASSETS -- 100.0% $ 266,063,492 ===================================================================================================== (A.D.R.) American Depositary Receipt. (G.D.R.) Global Depositary Receipt. (Perpetual) Security with no stated maturity date. * Non-income producing security. (144A) Security is exempt from registration under Rule 144A of the Securities Act of 1933. Such securities may be resold normally to qualified institutional buyers in a transaction exempt from registration. At May 31, 2012, the value of these securities amounted to $742,050 or 0.3% of total net assets. (a) At May 31, 2012, the net unrealized loss on investments based on cost for federal income tax purposes of $288,299,188 was as follows: Aggregate gross unrealized gain for all investments for which there is an excess of value over tax cost $ 21,514,622 Aggregate gross unrealized loss for all investments for which there is an excess of tax cost over value (48,355,907) ------------- Net unrealized loss $ (26,841,286) ============= The accompanying notes are an integral part of these financial statements. 22 Pioneer International Value Fund | Semiannual Report | 5/31/12 (b) Distributions of investments by country of issue (excluding temporary cash investments) as a percentage of total investment in securities, is as follows: Japan 17.1% United Kingdom 13.4% Switzerland 8.7% Hong Kong 8.4% Germany 6.2% France 5.9% Italy 5.3% United States 4.5% Brazil 3.2% Ireland 3.2% Russian Federation 2.9% Sweden 2.6% South Africa 2.3% Korea, Republic of 2.2% Luxembourg 2.2% Australia 2.1% Philippines 1.3% Mexico 1.2% Other (individually less than 1%) 7.3% -------- 100.0% ======== (c) Security is valued using fair value methods. NOTE: Principal amounts are denominated in U.S. Dollars unless otherwise noted: EURO Euro Purchases and sales of securities (excluding temporary cash investments) for the six months ended May 31, 2012 aggregated $104,119,026 and $90,077,560, respectively. Various inputs are used in determining the value of the Fund's investments. These inputs are summarized in the three broad levels listed below. Level 1 - quoted prices in active markets for identical securities Level 2 - other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.) Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining fair value of investments) Generally, equity securities are categorized as Level 1, fixed income securities and senior loans as Level 2 and securities valued using fair value methods (other than prices supplied by independent pricing services) are categorized as Level 3. See Notes to Financial Statements -- Note 1A. The accompanying notes are an integral part of these financial statements. Pioneer International Value Fund | Semiannual Report | 5/31/12 23 Schedule of Investments | 5/31/12 (unaudited) (continued) The following is a summary of the inputs used as of May 31, 2012, in valuing the Fund's assets: -------------------------------------------------------------------------------- Level 1 Level 2 Level 3 Total -------------------------------------------------------------------------------- Common Stocks* $41,029,071 $217,838,452 $ -- $258,867,529 Corporate Bonds -- 2,590,373 -- 2,590,373 -------------------------------------------------------------------------------- Total $41,029,071 $220,428,825 $ -- $261,457,902 ================================================================================ Other Financial Instruments** $ -- $ -- $ -- $ -- ================================================================================ * Level 2 securities are valued by independent pricing services using fair value factors. ** Other financial instruments include the unrealized gain (loss) on forward foreign currency contracts. The following is a reconciliation of assets valued using significant observable inputs (Level 3): -------------------------------------------------------------------------------- Common Stocks -------------------------------------------------------------------------------- Balance as of 11/30/11 $ 1,080,355 Realized gain (loss) -- Change in unrealized appreciation (depreciation)(1) (1,080,355) Net purchases (sales) -- Transfers in and out of Level 3 -- -------------------------------------------------------------------------------- Balance as of 5/31/12 $ 0 ================================================================================ (1) Realized gain (loss) on these securities is included in the net realized gain (loss) on investments in the Statement of Operations. (2) Unrealized appreciation (depreciation) on these securities is included in the change in unrealized gain (loss) on investments in the Statement of Operations. * Transfers are calculated on the beginning of period values. Net change in unrealized appreciation (depreciation) of investments still held as of 5/31/12 $ (1,080,355) -------------- The accompanying notes are an integral part of these financial statements. 24 Pioneer International Value Fund | Semiannual Report | 5/31/12 Statement of Assets and Liabilities | 5/31/12 (unaudited) ASSETS: Investment in securities (cost $288,299,188) $ 261,457,902 Cash 1,766,681 Foreign currencies, at value (cost $996,238) 987,034 Receivables -- Investment securities sold 2,043,771 Fund shares sold 122,069 Dividends, interest and foreign taxes withheld 1,977,397 Due from Pioneer Investment Management, Inc. 30,389 Other 39,213 ------------------------------------------------------------------------------------ Total assets $ 268,424,456 ==================================================================================== LIABILITIES: Payables -- Investment securities purchased $ 1,961,254 Fund shares repurchased 249,194 Dividends 1,001 Forward foreign currency settlement hedge contracts, open-net 1,836 Due to affiliates 64,837 Accrued expenses 82,842 ------------------------------------------------------------------------------------ Total liabilities $ 2,360,964 ==================================================================================== NET ASSETS: Paid-in capital $ 458,923,839 Undistributed net investment income 3,304,283 Accumulated net realized loss on investments and foreign currency transactions (169,307,353) Net unrealized loss on investments (26,841,286) Net unrealized loss on forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (15,991) ------------------------------------------------------------------------------------ Total net assets $ 266,063,492 ==================================================================================== NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $69,888,481/4,267,873 shares) $ 16.38 Class B (based on $4,227,780/284,804 shares) $ 14.84 Class C (based on $9,050,407/619,988 shares) $ 14.60 Class Y (based on $182,896,824/11,152,576 shares) $ 16.40 MAXIMUM OFFERING PRICE: Class A ($16.38 [divided by] 94.25%) $ 17.38 ==================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer International Value Fund | Semiannual Report | 5/31/12 25 Statement of Operations (unaudited) For the Six Months Ended 5/31/12 INVESTMENT INCOME: Dividends (net of foreign taxes withheld of $624,198) $ 5,413,369 Interest 236,840 Income from securities loaned, net 7,642 ------------------------------------------------------------------------------------------- Total investment income $ 5,657,851 =========================================================================================== EXPENSES: Management fees $ 1,251,529 Transfer agent fees and expenses Class A $ 166,033 Class B 26,629 Class C 20,931 Class Y 960 Distribution fees Class A 99,816 Class B 26,674 Class C 52,104 Shareholder communications expense 68,232 Administrative reimbursement 38,547 Custodian fees 42,860 Registration fees 28,633 Professional fees 33,892 Printing expense 12,754 Fees and expenses of nonaffiliated Trustees 4,335 Miscellaneous 47,274 ------------------------------------------------------------------------------------------- Total expenses $ 1,921,203 Less fees waived and expenses reimbursed by Pioneer Investment Management, Inc. (161,723) =========================================================================================== Net expenses $ 1,759,480 ------------------------------------------------------------------------------------------- Net investment income $ 3,898,371 ------------------------------------------------------------------------------------------- REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS AND FOREIGN CURRENCY TRANSACTIONS: Net realized gain (loss) on: Investments $ (7,924,571) Class actions 9,166 Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (288,708) $ (8,204,113) ------------------------------------------------------------------------------------------- Change in net unrealized gain (loss) on: Investments $ (18,897,219) Forward foreign currency contracts and other assets and liabilities denominated in foreign currencies (80,487) $ (18,977,706) ------------------------------------------------------------------------------------------- Net loss on investments and foreign currency transactions $ (27,181,819) ------------------------------------------------------------------------------------------- Net decrease in net assets resulting from operations $ (23,283,448) =========================================================================================== The accompanying notes are an integral part of these financial statements. 26 Pioneer International Value Fund | Semiannual Report | 5/31/12 Statements of Changes in Net Assets ------------------------------------------------------------------------------------------- Six Months Ended 5/31/12 Year Ended (unaudited) 11/30/11 ------------------------------------------------------------------------------------------- FROM OPERATIONS: Net investment income $ 3,898,371 $ 6,409,555 Net realized gain (loss) on investments and foreign currency transactions (8,204,113) 9,883,254 Change in net unrealized gain (loss) on investments and foreign currency transactions (18,977,706) (22,952,943) ------------------------------------------------------------------------------------------- Net decrease in net assets resulting from operations $ (23,283,448) $ (6,660,134) ------------------------------------------------------------------------------------------- DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.26 and $0.22 per share, respectively) $ (1,153,020) $ (1,023,788) Class B ($0.05 and $0.02 per share, respectively) (16,573) (13,411) Class C ($0.11 and $0.06 per share, respectively) (69,163) (41,952) Class Y ($0.35 and $0.30 per share, respectively) (3,694,097) (3,168,233) ------------------------------------------------------------------------------------------- Total distributions to shareowners $ (4,932,853) $ (4,247,384) ------------------------------------------------------------------------------------------- FROM FUND SHARE TRANSACTIONS: Net proceeds from sale or exchange of shares $ 20,103,721 $ 20,926,432 Reinvestment of distributions 1,187,083 1,034,534 Cost of shares repurchased (12,402,061) (31,870,345) ------------------------------------------------------------------------------------------- Net increase (decrease) in net assets resulting from Fund share transactions $ 8,888,743 $ (9,909,379) ------------------------------------------------------------------------------------------- Net decrease in net assets $ (19,327,558) $ (20,816,897) NET ASSETS: Beginning of period 285,391,050 306,207,947 ------------------------------------------------------------------------------------------- End of period $ 266,063,492 $ 285,391,050 ------------------------------------------------------------------------------------------- Undistributed net investment income $ 3,304,283 $ 4,338,765 =========================================================================================== The accompanying notes are an integral part of these financial statements. Pioneer International Value Fund | Semiannual Report | 5/31/12 27 Statement of Changes in Net Assets (continued) ------------------------------------------------------------------------------------------- '12 Shares '12 Amount '11 Shares '11 Amount (unaudited) (unaudited) ------------------------------------------------------------------------------------------- CLASS A Shares sold 231,354 $ 4,579,632 552,784 $ 10,885,729 Reinvestment of distributions 63,926 1,086,124 48,988 964,082 Less shares repurchased (450,766) (8,176,842) (940,687) (18,525,899) ------------------------------------------------------------------------------------------- Net decrease (155,486) $ (2,511,086) (338,915) $ (6,676,088) =========================================================================================== CLASS B Shares sold or exchanged 4,567 $ 105,498 31,578 $ 557,777 Reinvestment of distributions 1,037 16,029 723 12,883 Less shares repurchased (91,165) (1,499,955) (244,054) (4,329,539) ------------------------------------------------------------------------------------------- Net decrease (85,561) $ (1,378,428) (211,753) $ (3,758,879) =========================================================================================== CLASS C Shares sold 41,696 $ 730,669 111,479 $ 1,975,835 Reinvestment of distributions 4,302 65,387 2,226 39,190 Less shares repurchased (85,078) (1,400,218) (183,522) (3,216,738) ------------------------------------------------------------------------------------------- Net decrease (39,080) $ (604,162) (69,817) $ (1,201,713) =========================================================================================== CLASS Y Shares sold 745,658 $ 14,687,922 388,272 $ 7,507,091 Reinvestment of distributions 1,151 19,543 934 18,379 Less shares repurchased (73,540) (1,325,046) (290,814) (5,798,169) ------------------------------------------------------------------------------------------- Net increase 673,269 $ 13,382,419 98,392 $ 1,727,301 =========================================================================================== The accompanying notes are an integral part of these financial statements. 28 Pioneer International Value Fund | Semiannual Report | 5/31/12 Financial Highlights ----------------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year Year Year Year 5/31/12 Ended Ended Ended Ended Ended (unaudited) 11/30/11 11/30/10 11/30/09 11/30/08 11/30/07 ----------------------------------------------------------------------------------------------------------------------------------- Class A Net asset value, beginning of period $ 17.99 $ 18.72 $ 19.16 $ 14.15 $ 28.12 $ 23.98 ----------------------------------------------------------------------------------------------------------------------------------- Increase from investment operations: Net investment income $ 0.22 $ 0.37 $ 0.24 $ 0.14 $ 0.27 $ 0.22 Net realized and unrealized gain (loss) on (1.57) investments and foreign currency transactions 0.00 (0.88) (0.61) 5.01 (14.05) 4.02 ----------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (1.35) $ (0.51) $ (0.37) $ 5.15 $ (13.78) $ 4.24 ----------------------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income (0.26) (0.22) (0.07) (0.14) (0.19) (0.10) ----------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (1.61) $ (0.73) $ (0.44) $ 5.01 $ (13.97) $ 4.14 ----------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 16.38 $ 17.99 $ 18.72 $ 19.16 $ 14.15 $ 28.12 =================================================================================================================================== Total return* (7.55)%** (2.84)% (1.94)% 36.72% (49.33)% 17.73% Ratio of net expenses to average net assets+ 1.45%** 1.45% 1.45% 1.52% 1.71% 1.68% Ratio of net investment income to average net assets+ 2.36%** 1.80% 1.18% 0.97% 1.07% 0.76% Portfolio turnover rate 62% 66% 66% 54% 135% 81% Net assets, end of period (in thousands) $ 69,888 $ 79,559 $ 89,145 $ 106,263 $ 53,725 $ 133,264 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Net expenses 1.77%** 1.77% 1.76% 2.10% 1.90% 1.68% Net investment income 2.04%** 1.48% 0.86% 0.39% 0.88% 0.76% Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 1.45%** 1.45% 1.45% 1.52% 1.70% 1.66% Net investment income 2.36%** 1.80% 1.18% 0.97% 1.08% 0.78% =================================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period, and no sales charges. Total return would be reduced if sales charges were taken into account. + Ratios with no reduction for fees paid indirectly. ** Annualized. The accompanying notes are an integral part of these financial statements. Pioneer International Value Fund | Semiannual Report | 5/31/12 29 Financial Highlights (continued) ----------------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year Year Year Year 5/31/12 Ended Ended Ended Ended Ended (unaudited) 11/30/11 11/30/10 11/30/09 11/30/08 11/30/07 ----------------------------------------------------------------------------------------------------------------------------------- Class B Net asset value, beginning of period $ 16.17 $ 16.82 $ 17.31 $ 12.77 $ 25.50 $ 21.86 ----------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.18 $ 0.31 $ 0.09 $ (0.05)# $ 0.09 $ (0.02) Net realized and unrealized gain (loss) on investments and foreign currency transactions (1.46) (0.94) (0.58) 4.59 (12.76) 3.66 ----------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (1.28) $ (0.63) $ (0.49) $ 4.54 $ (12.67) $ 3.64 ----------------------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income (0.05) (0.02) -- -- (0.06) -- ----------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (1.33) $ (0.65) $ (0.49) $ 4.54 $ (12.73) $ 3.64 ----------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 14.84 $ 16.17 $ 16.82 $ 17.31 $ 12.77 $ 25.50 =================================================================================================================================== Total return* (7.94)%** (3.74)% (2.83)% 35.55% (49.80)% 16.65% Ratio of net expenses to average net assets+ 2.35%** 2.35% 2.35% 2.40% 2.61% 2.55% Ratio of net investment income (loss) to average net assets+ 1.30%** 0.85% 0.26% (0.06)% 0.14% (0.12)% Portfolio turnover rate 62%** 66% 66% 54% 135% 81% Net assets, end of period (in thousands) $ 4,228 $ 5,987 $ 9,790 $ 14,538 $ 5,978 $ 18,562 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Net expenses 3.17%** 2.94% 2.88% 3.05% 2.76% 2.55% Net investment loss 0.49%** 0.26% (0.27)% (0.71)% (0.01)% (0.12)% Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 2.35% 2.35%** 2.35% 2.40% 2.60% 2.52% Net investment income (loss) 1.30%** 0.85% 0.26% (0.06)% 0.15% (0.09)% =================================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period, and no sales charges. Total return would be reduced if sales charges were taken into account. + Ratios with no reduction for fees paid indirectly. # The amount shown for a share outstanding does not correspond with the aggregate gain 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. ** Annualized. The accompanying notes are an integral part of these financial statements. 30 Pioneer International Value Fund | Semiannual Report | 5/31/12 ----------------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year Year Year Year 5/31/12 Ended Ended Ended Ended Ended (unaudited) 11/30/11 11/30/10 11/30/09 11/30/08 11/30/07 ----------------------------------------------------------------------------------------------------------------------------------- Class C Net asset value, beginning of period $ 15.97 $ 16.64 $ 17.12 $ 12.64 $ 25.28 $ 21.64 ----------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income (loss) $ 0.13 $ 0.19 $ 0.06 $ (0.05)# $ 0.08 $ (0.01) Net realized and unrealized gain (loss) on (1.39) investments and foreign currency transactions $ -- $ (0.80) $ (0.54) $ 4.53 $ (12.62) $ 3.65 ----------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (1.26) $ (0.61) $ (0.48) $ 4.48 $ (12.54) $ 3.64 ----------------------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income (0.11) (0.06) -- -- (0.10) -- ----------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (1.37) $ (0.67) $ (0.48) $ 4.48 $ (12.64) $ 3.64 ----------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 14.60 $ 15.97 $ 16.64 $ 17.12 $ 12.64 $ 25.28 =================================================================================================================================== Total return* (7.94)%** (3.71)% (2.80)% 35.44% (49.79)% 16.82% Ratio of net expenses to average net assets+ 2.35%** 2.35% 2.35% 2.40% 2.57% 2.45% Ratio of net investment income (loss) to average net assets+ 1.43%** 0.90% 0.26% (0.04)% 0.22% 0.00%(a) Portfolio turnover rate 62%** 66% 66% 54% 135% 81% Net assets, end of period (in thousands) $ 9,050 $ 10,523 $ 12,126 $ 14,839 $ 5,384 $ 16,486 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Net expenses 2.60%** 2.52% 2.58% 2.74% 2.57% 2.45% Net investment income (loss) 1.19%** 0.73% 0.02% (0.38)% 0.22% 0.00%(a) Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 2.35%** 2.35% 2.35% 2.40% 2.56% 2.44% Net investment income (loss) 1.43%** 0.90% 0.26% (0.04)% 0.23% 0.01% =================================================================================================================================== * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period, and no sales charges. Total return would be reduced if sales charges were taken into account. + Ratios with no reduction for fees paid indirectly. (a) Amount rounds to less than 0.01%. # The amount shown for a share outstanding does not correspond with the aggregate gain 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. ** Annualized. The accompanying notes are an integral part of these financial statements. Pioneer International Value Fund | Semiannual Report | 5/31/12 31 Financial Highlights (continued) --------------------------------------------------------------------------------------------------------------------------------- Six Months Ended Year Year 4/16/09 (a) 5/31/12 Ended Ended to (Unaudited) 11/30/11 11/30/10 11/30/09 --------------------------------------------------------------------------------------------------------------------------------- Class Y Net asset value, beginning of period $ 18.07 $ 18.80 $ 19.22 $ 14.11 --------------------------------------------------------------------------------------------------------------------------------- Increase (decrease) from investment operations: Net investment income $ 0.25 $ 0.44 $ 0.30 $ 0.10 Net realized and unrealized gain (loss) on investments and foreign currency transactions (1.57) (0.87) (0.59) 5.01 --------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) from investment operations $ (1.32) $ (0.43) $ (0.29) $ 5.11 --------------------------------------------------------------------------------------------------------------------------------- Distributions to shareowners: Net investment income (0.35) (0.30) (0.13) -- --------------------------------------------------------------------------------------------------------------------------------- Net increase (decrease) in net asset value $ (1.67) $ (0.73) $ (0.42) $ 5.11 --------------------------------------------------------------------------------------------------------------------------------- Net asset value, end of period $ 16.40 $ 18.07 $ 18.80 $ 19.22 ================================================================================================================================= Total return* (7.37)%** (2.39)% (1.51)% 36.22%(b) Ratio of net expenses to average net assets+ 0.98%** 1.01% 1.01% 1.01%** Ratio of net investment income to average net assets+ 2.90%** 2.26% 1.63% 1.10%** Portfolio turnover rate 62%** 66% 66% 54%(b) Net assets, end of period (in thousands) $ 182,897 $ 189,321 $ 195,147 $ 195,132 Ratios with no waiver of fees and assumption of expenses by the Adviser and no reduction for fees paid indirectly: Net expenses 0.98%** 1.01% 1.01% 1.01%** Net investment income 2.90%** 2.26% 1.63% 1.10%** Ratios with waiver of fees and assumption of expenses by the Adviser and reduction for fees paid indirectly: Net expenses 0.98%** 1.01% 1.01% 1.01%** Net investment income 2.90%** 2.26% 1.63% 1.10%** ================================================================================================================================= * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions and the complete redemption of the investment at net asset value at the end of each period. + Ratios with no reduction for fees paid indirectly. (a) Class Y shares were first publicly offered on April 16, 2009. (b) Not annualized. ** Annualized. The accompanying notes are an integral part of these financial statements. 32 Pioneer International Value Fund | Semiannual Report | 5/31/12 Notes to Financial Statements | 5/31/12 (unaudited) 1. Organization and Significant Accounting Policies Pioneer International Value Fund (the Fund) is the sole portfolio comprising Pioneer Series Trust VIII, 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 long-term growth of capital. The Fund offers four classes of shares designated as Class A, Class B, Class C and Class Y shares. Class R shares were first publicly offered on April 1, 2003 and ceased operations on February 1, 2007. Class Y shares were first publicly offered on April 16, 2009. Effective as of the close of business on December 31, 2009, Class B shares are no longer offered to new or existing shareholders, except that dividends and/or capital gain distributions may continue to be reinvested in Class B shares, and shareholders may exchange their Class B shares for Class B shares of other Pioneer funds, as permitted by existing exchange privileges. Each class of shares represents an interest in the same portfolio of investments of the Fund and has identical rights (based on relative net asset values) to assets and liquidation proceeds. Share classes can bear different rates of class-specific fees and expenses such as transfer agent and distribution fees. Differences in class-specific fees and expenses will result in differences in net investment income and, therefore, the payment of different dividends from net investment income earned by each class. The Amended and Restated Declaration of Trust of the Fund gives the Board the flexibility to specify either per-share voting or dollar-weighted voting when submitting matters for shareholder approval. Under per-share voting, each share of a class of the Fund is entitled to one vote. Under dollar-weighted voting, a shareholder's voting power is determined not by the number of shares owned, but by the dollar value of the shares on the record date. Each share class has exclusive voting rights with respect to matters affecting only that class, including with respect to the distribution plan for that class. There is no distribution plan for Class Y shares. Class B shares convert to Class A shares approximately eight years after the date of purchase. The Fund's financial statements have been prepared in conformity with U.S. generally accepted accounting principles that require the management of the Fund to, among other things, make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of income, expenses and gain or loss on investments during the reporting period. Actual results could differ from those estimates. Pioneer International Value Fund | Semiannual Report | 5/31/12 33 The following is a summary of significant accounting policies followed by the Fund in the preparation of its financial statements, which are consistent with those policies generally accepted in the investment company industry: A. Security Valuation Security transactions are recorded as of trade date. The net asset value of the Fund is computed once daily, on each day the New York Stock Exchange (NYSE) is open, as of the close of regular trading on the NYSE. In computing the net asset value, securities that have traded on an exchange are valued using the last sale price on the principal exchange where they are traded. Securities that have not traded on the date of valuation, or securities for which sale prices are not available, generally are valued using the mean between the last bid and asked prices. Short-term fixed income securities with remaining maturities of sixty days or less generally are valued at amortized cost. Money market mutual funds are valued at net asset value. The Fund invests primarily in securities of non-U.S. issuers. The principal exchanges and markets for such securities have closing times prior to the close of the NYSE. However, the value of these securities may be influenced by changes in global markets occurring after the closing times of the local exchanges and markets up to the time the Fund determines its net asset value. Consequently, the Board of Trustees of the Fund has determined that daily adjustments to the valuation of securities of non-U.S. issuers by utilizing an independent pricing service that supplies an appropriate fair value factor is appropriate for the Fund. Securities for which market prices and/or quotations are not readily available or are considered to be unreliable are valued using fair value methods pursuant to procedures adopted by the Board of Trustees. The Fund may use fair value methods if it is determined that a significant event has occurred after the close of the exchange or market on which the security trades and prior to the determination of the Fund's net asset value. Examples of a significant event might include political or economic news, corporate restructurings, natural disasters, terrorist activity or trading halts. Thus, the valuation of the Fund's securities may differ from exchange prices. At May 31, 2012, one security was valued using fair value methods (in addition to securities valued using prices supplied by independent pricing services) representing 0.00% of net assets. Inputs used when applying fair value methods to value a security may include credit ratings, the financial condition of the company, current market conditions and comparable securities. 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 34 Pioneer International Value Fund | Semiannual Report | 5/31/12 interest on income-bearing cash accounts, is recorded on the accrual basis. Dividend and interest income are reported net of unrecoverable foreign taxes withheld at the applicable country rates. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. B. Foreign Currency Translation The books and records of the Fund are maintained in U.S. dollars. Amounts denominated in foreign currencies are translated into U.S. dollars using current exchange rates. Net realized gains and losses on foreign currency transactions, if any, represent, among other things, the net realized gains and losses on foreign currency contracts, disposition of foreign currencies and the difference between the amount of income accrued and the U.S. dollars actually received. Further, the effects of changes in foreign currency exchange rates on investments are not segregated in the Statement of Operations from the effects of changes in market price of those securities but are included with the net realized and unrealized gain or loss on investments. C. Forward Foreign Currency Contracts The Fund may enter into forward foreign currency contracts (contracts) for the purchase or sale of a specific foreign currency at a fixed price on a future date. All contracts are marked to market daily at the applicable exchange rates, and any resulting unrealized gains or losses are recorded in the Fund's financial statements. The Fund records realized gains and losses at the time a portfolio hedge is offset by entry into a closing transaction or extinguished by delivery of the currency. Risks may arise upon entering into these contracts from the potential inability of counterparties to meet the terms of the contract and from unanticipated movements in the value of foreign currencies relative to the U.S. dollar (see Note 6). D. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no federal income tax provision is required. Tax years for the prior three fiscal years remain subject to examination by federal and state tax authorities. In addition to the requirements of the Internal Revenue Code, the Fund may also be required to pay local taxes on the recognition of capital gains and/or the repatriation of foreign currencies in certain countries. During the six months ended May 31, 2012, the Fund paid no such taxes. Pioneer International Value Fund | Semiannual Report | 5/31/12 35 The amounts and characterizations of distributions to shareowners for financial reporting purposes are determined in accordance with federal income tax rules. Therefore, the sources of the Fund's distributions may be shown in the accompanying financial statements as from or in excess of net investment income or as from net realized gain on investment transactions, or as from paid-in capital, depending on the type of book/tax differences that may exist. The tax character of current year distributions payable will be determined at the end of the current taxable year. The tax character of distributions paid during the year ended November 30, 2011 was as follows: ----------------------------------------------------------------------------- 2011 ----------------------------------------------------------------------------- Distribution paid from: Ordinary income $ 4,247,384 ----------------------------------------------------------------------------- Total $ 4,247,384 ============================================================================= The following shows the components of distributable earnings on a federal income tax basis at November 30, 2011: ----------------------------------------------------------------------------- 2011 ----------------------------------------------------------------------------- Distributable earnings: Undistributed ordinary income $ 4,372,582 Capital loss carryforward (153,460,706) Post-October loss deferred (3,493,787) Net unrealized loss (12,062,135) ----------------------------------------------------------------------------- Total $(164,644,046) ============================================================================= The difference between book-basis and tax-basis net unrealized loss is attributable to the tax deferral of losses on wash sales and the mark-to-market of foreign currency contracts. E. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned indirect subsidiary of UniCredit S.p.A. (UniCredit), earned $7,048 in underwriting commissions on the sale of Class A shares during the six months ended May 31, 2012. During the six months ended May 31, 2012 the Fund recognized gains of $9,166 in settlement of class action lawsuits from several different companies, as reflected on the Statement of Operations. F. Class Allocations Income, common expenses and realized and unrealized gains and losses are calculated at the Fund level and allocated daily to each class of shares based on its respective percentage of adjusted net assets at the beginning of the day. 36 Pioneer International Value Fund | Semiannual Report | 5/31/12 Distribution fees are calculated based on the average daily net asset value attributable to Class A, Class B and Class C shares of the Fund, respectively (see Note 4). Class Y shares do not pay distribution fees. All expenses and fees paid to the transfer agent, Pioneer Investment Management Shareholder Services, Inc. (PIMSS), for its services are allocated among the classes of shares based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). Distributions to shareowners are recorded as of the ex-dividend date. Distributions paid by the Fund with respect to each class of shares are calculated in the same manner and at the same time except that net investment income dividends to Class A, Class B, Class C and Class Y shares can reflect different transfer agent and distribution expense rates. G. Risks Investing in foreign and/or emerging markets securities involves risks relating to interest rates, currency exchange rates and economic and political conditions. The Fund may invest a substantial amount of its assets in issuers located in a limited number of countries and therefore may be susceptible to adverse economic, political or regulatory developments affecting those countries. At times, the Fund's investments may represent industries or industry sectors that are interrelated or have common risks, making the Fund more susceptible to any economic, political, or regulatory developments or other risks affecting those industries and sectors. The Fund's prospectus contains unaudited information regarding the Fund's principal risks. Please refer to that document when considering the Fund's principal risks. H. Securities Lending The Fund may lend securities in its portfolio to certain broker-dealers or other institutional investors. When entering into a securities loan transaction, the Fund typically receives cash collateral from the borrower equal to at least the value of the securities loaned, which is invested in temporary investments. Credit Suisse AG, New York Branch, as the Fund's securities lending agent, manages the Fund's securities lending collateral. The income earned on the investment of collateral is shared with the borrower and the lending agent in payment of any rebate due to the borrower with respect to the securities loan, and in compensation for the lending agent's services to the Fund. The Fund also continues to receive payments in lieu of dividends or interest on the securities loaned. Gain or loss on the value of the loaned securities that may occur during the term of the loan will be for the account of the Fund. The amount of the collateral is required to be adjusted daily to reflect any price fluctuation in the value of the loaned securities. If the required market value of the collateral is less than the value of the loaned securities, the borrower is required to deliver additional collateral for the account of the Pioneer International Value Fund | Semiannual Report | 5/31/12 37 Fund prior to the close of business on that day. The Fund has the right, under the lending agreement, to terminate the loan and recover the securities from the borrower with prior notice. The Fund is required to return the cash collateral to the borrower and could suffer a loss if the value of the collateral, as invested, has declined. At May 31, 2012, the Fund had no securities on loan. I. Repurchase Agreements With respect to repurchase agreements entered into by the Fund, the value of the underlying securities (collateral), including accrued interest, is required to be equal to or in excess of the repurchase price. The collateral for all repurchase agreements is held in safekeeping in the customer-only account of the Fund's custodian or a subcustodian of the Fund. The Fund's investment adviser, Pioneer Investment Management, Inc. (PIM), is responsible for determining that the value of the collateral remains at least equal to the repurchase price. 2. Management Agreement PIM, a wholly owned indirect subsidiary of UniCredit, manages the Fund's portfolio. Management fees are calculated daily at the annual rate of 0.85% of the Fund's average daily net assets up to $500 million and 0.75% on assets over $500 million. For the six months ended May 31, 2012, the effective management fee (excluding waivers and/or assumptions of expenses) was equivalent to 0.85% of the Fund's average daily net assets. PIM has contractually agreed to limit ordinary operating expenses to the extent required to reduce Fund expenses to 1.45%, 2.35% and 2.35% of the average daily net assets attributable to Class A, Class B and Class C shares, respectively. Fees waived and expenses reimbursed during the six months ended May 31, 2012 are reflected on the Statements of Operations. Class Y shares do not have an expense limitation. These expense limitations are in effect through April 1, 2013. There can be no assurance that PIM will extend the expense limitation agreement for a class of shares beyond the date referred to above. In addition, under the management and administration agreements, certain other services and costs, including accounting, regulatory reporting and insurance premiums, are paid by the Fund as administrative reimbursements. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $16,467 in management fees, administrative costs and certain other reimbursements payable to PIM at May 31, 2012. 3. Transfer Agent PIMSS, a wholly owned indirect subsidiary of UniCredit, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. 38 Pioneer International Value Fund | Semiannual Report | 5/31/12 In addition, the Fund reimburses PIMSS for out-of-pocket expenses incurred by PIMSS related to shareholder communications activities such as proxy and statement mailings, outgoing phone calls and omnibus relationship contracts. For the six months ended May 31, 2012, such out-of-pocket expenses by class of shares were as follows: -------------------------------------------------------------------------------- Shareholder Communications: -------------------------------------------------------------------------------- Class A $ 50,414 Class B 5,213 Class C 11,316 Class Y 1,289 -------------------------------------------------------------------------------- Total $ 68,232 ================================================================================ Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $46,664 in transfer agent fees and out-of-pocket reimbursements payable to PIMSS at May 31, 2012. 4. Distribution Plan The Fund has adopted a Distribution Plan pursuant to Rule 12b-1 of the Investment Company Act of 1940 with respect to its Class A, Class B and Class C shares. Pursuant to the Plan, the Fund pays PFD 0.25% of the average daily net assets attributable to Class A shares as compensation for personal services and/or account maintenance services or distribution services with regard to Class A shares. Pursuant to the Plan, the Fund also pays PFD 1.00% of the average daily net assets attributable to Class B and Class C shares. The fee for Class B and Class C shares consists of a 0.25% service fee and a 0.75% distribution fee paid as compensation for personal services and/or account maintenance services or distribution services with regard to Class B and Class C shares. Included in "Due to affiliates" reflected on the Statement of Assets and Liabilities is $1,706 in distribution fees payable to PFD at May 31, 2012. 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. Class B shares redeemed within five years of purchase are subject to a CDSC at declining rates beginning at 4.00%, based on the lower of cost or market value of shares being redeemed. Redemptions of Class C shares within one year of purchase are subject to a CDSC of 1.00%, based on the lower of cost or market value of shares being redeemed. Shares purchased as part of an exchange remain subject to any CDSC that applied to the original purchase of those shares. There is no CDSC for Class Y shares. Proceeds from the CDSCs are paid to PFD. For the six months ended May 31, 2012, CDSCs in the amount of $2,588 were paid to PFD. Pioneer International Value Fund | Semiannual Report | 5/31/12 39 5. Expense Offset Arrangements The Fund has entered into certain expense offset arrangements with PIMSS which may result in a reduction in the Fund's total expenses, due to interest earned on cash held by PIMSS. For the six months ended May 31, 2012, the Fund's expenses were not reduced under such arrangements. 6. Forward Foreign Currency Contracts At May 30, 2012, 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 six months ended May 31, 2012 was $5,597,146. At May 31, 2012, the Fund had no outstanding portfolio hedges. At May 31, 2012, the Fund's gross forward currency settlement contracts receivable and payable were $3,320,612 and $3,322,448, respectively, resulting in a net payable of $1,836. 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 may borrow up to the lesser of the amount available under the facility or the limits set for borrowing by the Fund's prospectus and the 1940 Act. The credit facility in effect until January 20, 2012 was in the amount of $165 million. Under such facility, interest on borrowings was payable at the higher of the London Interbank Offered Rate (LIBOR) on the borrowing date plus 1.25% on an annualized basis or the Federal Funds Rate on the borrowing date plus 1.25% on an annualized basis. The credit facility in effect as of February 15, 2012 is in the amount of $215 million. Under such facility, depending on the type of loan, interest on borrowings is payable at LIBOR plus 0.90% on an annualized basis, or the Alternate Base Rate, which is the greater of (a) the facility's administrative agent's daily announced prime rate on the borrowing date, (b) 2% plus the Federal Funds Rate on the borrowing date and (c) 2% plus the overnight Euro dollar 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 six months ended May 31, 2012, the Fund had no borrowings under a credit facility. 40 Pioneer International Value Fund | Semiannual Report | 5/31/12 8. Additional Disclosures about Derivative Instruments and Hedging Activities Values of derivative instruments as of May 31, 2012 were as follows: ------------------------------------------------------------------------------------------- Derivatives Not Accounted for as Hedging Instruments Asset Derivatives 2012 Liabilities Derivatives 2012 Under Accounting ------------------------------ ----------------------------- Standards Codification Balance Sheet Balance Sheet (ASC) 815 Location Value Location Value ------------------------------------------------------------------------------------------- Forward Foreign Exchange Contracts Receivables* $3,320,612 Payables* $3,322,448 ------------------------------------------------------------------------------------------- Total $3,320,612 $3,322,448 =========================================================================================== * Forward Foreign exchange contracts are shown as a net payable on the Statement of Assets and Liabilities. The effect of derivative instruments on the Statement of Operations for the six months ended May 31, 2012 was as follows: ------------------------------------------------------------------------------------------------- Derivatives Not Change in Accounted for as Realized Unrealized Hedging Instruments Gain on Gain or (Loss) Under Accounting Location of Gain or (Loss) Derivatives on Derivatives Standards Codification on Derivatives Recognized Recognized Recognized (ASC) 815 in Income in Income in Income ------------------------------------------------------------------------------------------------- Forward Foreign Net realized gain on forward $211,954 Exchange Contracts foreign exchange contracts and other assets and liabilities denominated in foreign currencies Forward Foreign Change in unrealized gain on $(35,653) Exchange Contracts forward foreign exchange contracts and other assets and liabilities denominated in foreign currencies Pioneer International Value Fund | Semiannual Report | 5/31/12 41 Trustees, Officers and Service Providers Trustees Officers Thomas J. Perna, Chairman John F. Cogan, Jr., President* David R. Bock Daniel K. Kingsbury, Executive Mary K. Bush Vice President John F. Cogan, Jr. Mark E. Bradley, Treasurer** Benjamin M. Friedman Christopher J. Kelley, Secretary Margaret B.W. Graham Daniel K. Kingsbury Marguerite A. Piret Stephen K. West Investment Adviser and Administrator Pioneer Investment Management, Inc. Custodian Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Bingham McCutchen LLP Shareowner Services and Transfer Agent Pioneer Investment Management Shareholder Services, Inc. Proxy Voting Policies and Procedures of the Fund are available without charge, upon request, by calling our toll free number (1-800-225-6292). Information regarding how the Fund voted proxies relating to portfolio securities during the most recent 12-month period ended June 30 is publicly available to shareowners at us.pioneerinvestments.com. This information is also available on the Securities and Exchange Commission's web site at http://www.sec.gov. * Chief Executive Officer of the Funds. ** Chief Financial and Accounting Officer of the Funds. 42 Pioneer International Value Fund | Semiannual Report | 5/31/12 This page for your notes. Pioneer International Value Fund | Semiannual Report | 5/31/12 43 This page for your notes. 44 Pioneer International Value Fund | Semiannual Report | 5/31/12 How to Contact Pioneer We are pleased to offer a variety of convenient ways for you to contact us for assistance or information. Call us for: -------------------------------------------------------------------------------- Account Information, including existing accounts, new accounts, prospectuses, applications and service forms 1-800-225-6292 FactFone(SM) for automated fund yields, prices, account information and transactions 1-800-225-4321 Retirement plans information 1-800-622-0176 Write to us: -------------------------------------------------------------------------------- PIMSS, Inc. P.O. Box 55014 Boston, Massachusetts 02205-5014 Our toll-free fax 1-800-225-4240 Our internet e-mail address ask.pioneer@pioneerinvestments.com (for general questions about Pioneer only) Visit our web site: us.pioneerinvestments.com This report must be preceded or accompanied by a prospectus. The Fund files a complete schedule of investments with the Securities and Exchange Commission for the first and third quarters for each fiscal year on Form N-Q. Shareholders may view the filed Form N-Q by visiting the Commission's web site at http://www.sec.gov. The filed form may also be viewed and copied at the Commission's Public Reference Room in Washington, DC. Information regarding the operations of the Public Reference Room may be obtained by calling 1-800-SEC-0330. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 us.pioneerinvestments.com Securities offered through Pioneer Funds Distributor, Inc. 60 State Street, Boston, MA 02109 Underwriter of Pioneer Mutual Funds, Member SIPC (c) 2012 Pioneer Investments 19390-06-0712 ITEM 2. CODE OF ETHICS. (a) Disclose whether, as of the end of the period covered by the report, the registrant has adopted a code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party. If the registrant has not adopted such a code of ethics, explain why it has not done so. The registrant has adopted, as of the end of the period covered by this report, a code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer and controller. (b) For purposes of this Item, the term "code of ethics" means written standards that are reasonably designed to deter wrongdoing and to promote: (1) Honest and ethical conduct, including the ethical handling of actual or apparent conflicts of interest between personal and professional relationships; (2) Full, fair, accurate, timely, and understandable disclosure in reports and documents that a registrant files with, or submits to, the Commission and in other public communications made by the registrant; (3) Compliance with applicable governmental laws, rules, and regulations; (4) The prompt internal reporting of violations of the code to an appropriate person or persons identified in the code; and (5) Accountability for adherence to the code. (c) The registrant must briefly describe the nature of any amendment, during the period covered by the report, to a provision of its code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item. The registrant must file a copy of any such amendment as an exhibit pursuant to Item 10(a), unless the registrant has elected to satisfy paragraph (f) of this Item by posting its code of ethics on its website pursuant to paragraph (f)(2) of this Item, or by undertaking to provide its code of ethics to any person without charge, upon request, pursuant to paragraph (f)(3) of this Item. The registrant has made no amendments to the code of ethics during the period covered by this report. (d) If the registrant has, during the period covered by the report, granted a waiver, including an implicit waiver, from a provision of the code of ethics to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, regardless of whether these individuals are employed by the registrant or a third party, that relates to one or more of the items set forth in paragraph (b) of this Item, the registrant must briefly describe the nature of the waiver, the name of the person to whom the waiver was granted, and the date of the waiver. Not applicable. (e) If the registrant intends to satisfy the disclosure requirement under paragraph (c) or (d) of this Item regarding an amendment to, or a waiver from, a provision of its code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions and that relates to any element of the code of ethics definition enumerated in paragraph (b) of this Item by posting such information on its Internet website, disclose the registrant's Internet address and such intention. Not applicable. (f) The registrant must: (1) File with the Commission, pursuant to Item 10(a), a copy of its code of ethics that applies to the registrant's principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, as an exhibit to its annual report on this Form N-CSR (see attachment); (2) Post the text of such code of ethics on its Internet website and disclose, in its most recent report on this Form N-CSR, its Internet address and the fact that it has posted such code of ethics on its Internet website; or (3) Undertake in its most recent report on this Form N-CSR to provide to any person without charge, upon request, a copy of such code of ethics and explain the manner in which such request may be made. 	See Item 10(2) ITEM 3. AUDIT COMMITTEE FINANCIAL EXPERT. (a) (1) Disclose that the registrant's board of trustees has determined that the registrant either: (i) Has at least one audit committee financial expert serving on its audit committee; or (ii) Does not have an audit committee financial expert serving on its audit committee. The registrant's Board of Trustees has determined that the registrant has at least one audit committee financial expert. (2) If the registrant provides the disclosure required by paragraph (a)(1)(i) of this Item, it must disclose the name of the audit committee financial expert and whether that person is "independent." In order to be considered "independent" for purposes of this Item, a member of an audit committee may not, other than in his or her capacity as a member of the audit committee, the board of trustees, or any other board committee: (i) Accept directly or indirectly any consulting, advisory, or other compensatory fee from the issuer; or (ii) Be an "interested person" of the investment company as defined in Section 2(a)(19) of the Act (15 U.S.C. 80a-2(a)(19)). Ms. Marguerite A. Piret, an independent trustee, is such an audit committee financial expert. (3) If the registrant provides the disclosure required by paragraph (a)(1) (ii) of this Item, it must explain why it does not have an audit committee financial expert. Not applicable. ITEM 4. PRINCIPAL ACCOUNTANT FEES AND SERVICES. (a) Disclose, under the caption AUDIT FEES, the aggregate fees billed for each of the last two fiscal years for professional services rendered by the principal accountant for the audit of the registrant's annual financial statements or services that are normally provided by the accountant in connection with statutory and regulatory filings or engagements for those fiscal years. N/A (b) Disclose, under the caption AUDIT-RELATED FEES, the aggregate fees billed in each of the last two fiscal years for assurance and related services by the principal accountant that are reasonably related to the performance of the audit of the registrant's financial statements and are not reported under paragraph (a) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A (c) Disclose, under the caption TAX FEES, the aggregate fees billed in each of the last two fiscal years for professional services rendered by the principal accountant for tax compliance, tax advice, and tax planning. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A (d) Disclose, under the caption ALL OTHER FEES, the aggregate fees billed in each of the last two fiscal years for products and services provided by the principal accountant, other than the services reported in paragraphs (a) through (c) of this Item. Registrants shall describe the nature of the services comprising the fees disclosed under this category. N/A (e) (1) Disclose the audit committee's pre-approval policies and procedures described in paragraph (c)(7) of Rule 2-01 of Regulation S-X. PIONEER FUNDS APPROVAL OF AUDIT, AUDIT-RELATED, TAX AND OTHER SERVICES PROVIDED BY THE INDEPENDENT AUDITOR SECTION I - POLICY PURPOSE AND APPLICABILITY The Pioneer Funds recognize the importance of maintaining the independence of their outside auditors. Maintaining independence is a shared responsibility involving Pioneer Investment Management, Inc ("PIM"), the audit committee and the independent auditors. The Funds recognize that a Fund's independent auditors: 1) possess knowledge of the Funds, 2) are able to incorporate certain services into the scope of the audit, thereby avoiding redundant work, cost and disruption of Fund personnel and processes, and 3) have expertise that has value to the Funds. As a result, there are situations where it is desirable to use the Fund's independent auditors for services in addition to the annual audit and where the potential for conflicts of interests are minimal. Consequently, this policy, which is intended to comply with Rule 210.2-01(C)(7), sets forth guidelines and procedures to be followed by the Funds when retaining the independent audit firm to perform audit, audit-related tax and other services under those circumstances, while also maintaining independence. Approval of a service in accordance with this policy for a Fund shall also constitute approval for any other Fund whose pre-approval is required pursuant to Rule 210.2-01(c)(7)(ii). In addition to the procedures set forth in this policy, any non-audit services that may be provided consistently with Rule 210.2-01 may be approved by the Audit Committee itself and any pre-approval that may be waived in accordance with Rule 210.2-01(c)(7)(i)(C) is hereby waived. Selection of a Fund's independent auditors and their compensation shall be determined by the Audit Committee and shall not be subject to this policy. SECTION II - POLICY ---------------- -------------------------------- ------------------------------------------------- SERVICE SERVICE CATEGORY DESCRIPTION SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES CATEGORY ---------------- -------------------------------- ------------------------------------------------- I. AUDIT Services that are directly o Accounting research assistance SERVICES related to performing the o SEC consultation, registration independent audit of the Funds statements, and reporting o Tax accrual related matters o Implementation of new accounting standards o Compliance letters (e.g. rating agency letters) o Regulatory reviews and assistance regarding financial matters o Semi-annual reviews (if requested) o Comfort letters for closed end offerings ---------------- -------------------------------- ------------------------------------------------- II. Services which are not o AICPA attest and agreed-upon procedures AUDIT-RELATED prohibited under Rule o Technology control assessments SERVICES 210.2-01(C)(4) (the "Rule") o Financial reporting control assessments and are related extensions of o Enterprise security architecture the audit services support the assessment audit, or use the knowledge/expertise gained from the audit procedures as a foundation to complete the project. In most cases, if the Audit-Related Services are not performed by the Audit firm, the scope of the Audit Services would likely increase. The Services are typically well-defined and governed by accounting professional standards (AICPA, SEC, etc.) ---------------- -------------------------------- ------------------------------------------------- ------------------------------------- ------------------------------------ AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------- ------------------------------------ o "One-time" pre-approval o A summary of all such for the audit period for all services and related fees pre-approved specific service reported at each regularly subcategories. Approval of the scheduled Audit Committee independent auditors as meeting. auditors for a Fund shall constitute pre approval for these services. ------------------------------------- ------------------------------------ o "One-time" pre-approval o A summary of all such for the fund fiscal year within services and related fees a specified dollar limit (including comparison to for all pre-approved specified dollar limits) specific service subcategories reported quarterly. o Specific approval is needed to exceed the pre-approved dollar limit for these services (see general Audit Committee approval policy below for details on obtaining specific approvals) o Specific approval is needed to use the Fund's auditors for Audit-Related Services not denoted as "pre-approved", or to add a specific service subcategory as "pre-approved" ------------------------------------- ------------------------------------ SECTION III - POLICY DETAIL, CONTINUED ----------------------- --------------------------- ----------------------------------------------- SERVICE CATEGORY SERVICE CATEGORY SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES DESCRIPTION ----------------------- --------------------------- ----------------------------------------------- III. TAX SERVICES Services which are not o Tax planning and support prohibited by the Rule, o Tax controversy assistance if an officer of the Fund o Tax compliance, tax returns, excise determines that using the tax returns and support Fund's auditor to provide o Tax opinions these services creates significant synergy in the form of efficiency, minimized disruption, or the ability to maintain a desired level of confidentiality. ----------------------- --------------------------- ----------------------------------------------- ------------------------------------- ------------------------- AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------- ------------------------- ------------------------------------- ------------------------- o "One-time" pre-approval o A summary of for the fund fiscal year all such services and within a specified dollar limit related fees 				 (including comparison 			 to specified dollar 			 limits) reported 			 quarterly. o Specific approval is needed to exceed the pre-approved dollar limits for these services (see general Audit Committee approval policy below for details on obtaining specific approvals) o Specific approval is needed to use the Fund's auditors for tax services not denoted as pre-approved, or to add a specific service subcategory as "pre-approved" ------------------------------------- ------------------------- SECTION III - POLICY DETAIL, CONTINUED ----------------------- --------------------------- ----------------------------------------------- SERVICE CATEGORY SERVICE CATEGORY SPECIFIC PRE-APPROVED SERVICE SUBCATEGORIES DESCRIPTION ----------------------- --------------------------- ----------------------------------------------- IV. OTHER SERVICES Services which are not o Business Risk Management support prohibited by the Rule, o Other control and regulatory A. SYNERGISTIC, if an officer of the Fund compliance projects UNIQUE QUALIFICATIONS determines that using the Fund's auditor to provide these services creates significant synergy in the form of efficiency, minimized disruption, the ability to maintain a desired level of confidentiality, or where the Fund's auditors posses unique or superior qualifications to provide these services, resulting in superior value and results for the Fund. ----------------------- --------------------------- ----------------------------------------------- --------------------------------------- ------------------------ AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------- -------------------------- o "One-time" pre-approval o A summary of for the fund fiscal year within all such services and a specified dollar limit related fees 			 (including comparison 			 to specified dollar 				 limits) reported quarterly. o Specific approval is needed to exceed the pre-approved dollar limits for these services (see general Audit Committee approval policy below for details on obtaining specific approvals) o Specific approval is needed to use the Fund's auditors for "Synergistic" or "Unique Qualifications" Other Services not denoted as pre-approved to the left, or to add a specific service subcategory as "pre-approved" ------------------------------------- -------------------------- SECTION III - POLICY DETAIL, CONTINUED ----------------------- ------------------------- ----------------------------------------------- SERVICE CATEGORY SERVICE CATEGORY SPECIFIC PROHIBITED SERVICE SUBCATEGORIES DESCRIPTION ----------------------- ------------------------- ----------------------------------------------- PROHIBITED SERVICES Services which result 1. Bookkeeping or other services in the auditors losing related to the accounting records or independence status financial statements of the audit under the Rule. client* 2. Financial information systems design and implementation* 3. Appraisal or valuation services, fairness* opinions, or contribution-in-kind reports 4. Actuarial services (i.e., setting actuarial reserves versus actuarial audit work)* 5. Internal audit outsourcing services* 6. Management functions or human resources 7. Broker or dealer, investment advisor, or investment banking services 8. Legal services and expert services unrelated to the audit 9. Any other service that the Public Company Accounting Oversight Board determines, by regulation, is impermissible ----------------------- ------------------------- ----------------------------------------------- ------------------------------------------- ------------------------------ AUDIT COMMITTEE APPROVAL POLICY AUDIT COMMITTEE REPORTING POLICY ------------------------------------------- ------------------------------ o These services are not to be o A summary of all performed with the exception of the(*) services and related services that may be permitted fees reported at each if they would not be subject to audit regularly scheduled procedures at the audit client (as Audit Committee meeting defined in rule 2-01(f)(4)) level will serve as continual the firm providing the service. confirmation that has 				 not provided any restricted services. ------------------------------------------- ------------------------------ -------------------------------------------------------------------------------- GENERAL AUDIT COMMITTEE APPROVAL POLICY: o For all projects, the officers of the Funds and the Fund's auditors will each make an assessment to determine that any proposed projects will not impair independence. o Potential services will be classified into the four non-restricted service categories and the "Approval of Audit, Audit-Related, Tax and Other Services" Policy above will be applied. Any services outside the specific pre-approved service subcategories set forth above must be specifically approved by the Audit Committee. o At least quarterly, the Audit Committee shall review a report summarizing the services by service category, including fees, provided by the Audit firm as set forth in the above policy. -------------------------------------------------------------------------------- (2) Disclose the percentage of services described in each of paragraphs (b) through (d) of this Item that were approved by the audit committee pursuant to paragraph (c)(7)(i)(C) of Rule 2-01 of Regulation S-X. N/A (f) If greater than 50 percent, disclose the percentage of hours expended on the principal accountant's engagement to audit the registrant's financial statements for the most recent fiscal year that were attributed to work performed by persons other than the principal accountant's full-time, permanent employees. N/A (g) Disclose the aggregate non-audit fees billed by the registrant's accountant for services rendered to the registrant, and rendered to the registrant's investment adviser (not including any sub-adviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the adviser that provides ongoing services to the registrant for each of the last two fiscal years of the registrant. N/A (h) Disclose whether the registrant's audit committee of the board of trustees has considered whether the provision of non-audit services that were rendered to the registrant's investment adviser (not including any subadviser whose role is primarily portfolio management and is subcontracted with or overseen by another investment adviser), and any entity controlling, controlled by, or under common control with the investment adviser that provides ongoing services to the registrant that were not pre-approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. The Fund's audit committee of the Board of Trustees has considered whether the provision of non-audit services that were rendered to the Affiliates (as defined) that were not pre- approved pursuant to paragraph (c)(7)(ii) of Rule 2-01 of Regulation S-X is compatible with maintaining the principal accountant's independence. Item 5. Audit Committee of Listed Registrants (a) If the registrant is a listed issuer as defined in Rule 10A-3 under the Exchange Act (17 CFR 240.10A-3), state whether or not the registrant has a separately-designated standing audit committee established in accordance with Section 3(a)(58)(A) of the Exchange Act (15 U.S.C. 78c(a)(58)(A)). If the registrant has such a committee, however designated, identify each committee member. If the entire board of directors is acting as the registrants audit committee as specified in Section 3(a)(58)(B) of the Exchange Act (15 U.S.C. 78c(a)(58)(B)), so state. N/A (b) If applicable, provide the disclosure required by Rule 10A-3(d) under the Exchange Act (17 CFR 240.10A-3(d)) regarding an exemption from the listing standards for audit committees. N/A Item 6. Schedule of Investments. File Schedule I Investments in securities of unaffiliated issuers as of the close of the reporting period as set forth in 210.12- 12 of Regulation S-X [17 CFR 210.12-12], unless the schedule is included as part of the report to shareholders filed under Item 1 of this Form. Included in Item 1 ITEM 7. DISCLOSURE OF PROXY VOTING POLICIES AND PROCEDURES FOR CLOSED-END MANAGEMENT INVESTMENT COMPANIES. A closed-end management investment company that is filing an annual report on this Form N-CSR must, unless it invests exclusively in non-voting securities, describe the policies and procedures that it uses to determine how to vote proxies relating to portfolio securities, including the procedures that the company uses when a vote presents a conflict between the interests of its shareholders, on the one hand, and those of the company's investment adviser; principal underwriter; or any affiliated person (as defined in Section 2(a)(3) of the Investment Company Act of 1940 (15 U.S.C. 80a-2(a)(3)) and the rules thereunder) of the company, its investment adviser, or its principal underwriter, on the other. Include any policies and procedures of the company's investment adviser, or any other third party, that the company uses, or that are used on the company's behalf, to determine how to vote proxies relating to portfolio securities. Not applicable to open-end management investment companies. Item 8. Portfolio Managers of Closed-End Management Investment Companies. (a) If the registrant is a closed-end management investment company that is filing an annual report on this Form N-CSR,provide the following information: (1) State the name, title, and length of service of the person or persons employed by or associated with the registrant or an investment adviser of the registrant who are primarily responsible for the day-to-day management of the registrants portfolio (Portfolio Manager). Also state each Portfolio Managers business experience during the past 5 years. Not applicable to open-end management investment companies. Item 9. Purchases of Equity Securities by Closed-End Management Investment Company and Affiliated Purchasers. (a) If the registrant is a closed-end management investment company, in the following tabular format, provide the information specified in paragraph (b) of this Item with respect to any purchase made by or on behalf of the registrant or any affiliated purchaser, as defined in Rule 10b-18(a)(3) under the Exchange Act (17 CFR 240.10b-18(a)(3)), of shares or other units of any class of the registrants equity securities that is registered by the registrant pursuant to Section 12 of the Exchange Act (15 U.S.C. 781). Instruction to paragraph (a). Disclose all purchases covered by this Item, including purchases that do not satisfy the conditions of the safe harbor of Rule 10b-18 under the Exchange Act (17 CFR 240.10b-18), made in the period covered by the report. Provide disclosures covering repurchases made on a monthly basis. For example, if the reporting period began on January 16 and ended on July 15, the chart would show repurchases for the months from January 16 through February 15, February 16 through March 15, March 16 through April 15, April 16 through May 15, May 16 through June 15, and June 16 through July 15. Not applicable to open-end management investment companies. Item 10. Submission of Matters to a Vote of Security Holders. Describe any material changes to the procedures by which shareholders may recommend nominees to the registrants board of directors, where those changes were implemented after the registrant last provided disclosure in response to the requirements of Item 7(d)(2)(ii)(G) of Schedule 14A (17 CFR 240.14a-101), or this Item. There have been no material changes to the procedures by which the shareholders may recommend nominees to the registrants board of directors since the registrant last provided disclosure in response to the requirements of Item 7(d)(2)(ii)(G) of Schedule 14(A) in its definitive proxy statement, or this Item. ITEM 11. CONTROLS AND PROCEDURES. (a) Disclose the conclusions of the registrant's principal executive officer or officers and principal financial officer or officers, or persons performing similar functions, about the effectiveness of the registrant's disclosure controls and procedures (as defined in Rule 30a-2(c) under the Act (17 CFR 270.30a-2(c))) based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph. The registrant's principal executive officer and principal financial officer have concluded that the registrant's disclosure controls and procedures are effective based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of this report. (b) Disclose whether or not there were significant changes in the registrant's internal controls or in other factors that could significantly affect these controls subsequent to the date of their evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. There were no significant changes in the registrant's internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. The registrant's principal executive officer and principal financial officer, however, voluntarily are reporting the following information: In August of 2006 the registrant's investment adviser enhanced its internal procedures for reporting performance information required to be included in prospectuses. Those enhancements involved additional internal controls over the appropriateness of performance data generated for this purpose. Such enhancements were made following an internal review which identified prospectuses relating to certain classes of shares of a limited number of registrants where, inadvertently, performance information not reflecting the deduction of applicable sales charges was included. Those prospectuses were revised, and the revised prospectuses were distributed to shareholders. ITEM 12. EXHIBITS. File the exhibits listed below as part of this Form. Letter or number the exhibits in the sequence indicated. (a) Any code of ethics, or amendment thereto, that is the subject of the disclosure required by Item 2, to the extent that the registrant intends to satisfy the Item 2 requirements through filing of an exhibit. (b) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2 under the Act (17 CFR 270.30a-2). Filed herewith. SIGNATURES [See General Instruction F] Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) Pioneer International Value Fund By (Signature and Title)* /s/ John F. Cogan, Jr. John F. Cogan, Jr, President Date July 30, 2012 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By (Signature and Title)* /s/ John F. Cogan, Jr. John F. Cogan, Jr., President Date July 30, 2012 By (Signature and Title)* /s/ Mark Bradley Mark Bradley, Treasurer & Chief Accounting & Financial Officer Date July 30, 2012 * Print the name and title of each signing officer under his or her signature.