OMB APPROVAL OMB Number: 3235-0570 Expires: November 30, 2005 Estimated average burden hours per response..... 5.0 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 811-001605 Pioneer Balanced Fund (Exact name of registrant as specified in charter) 60 State Street, Boston, MA 02109 (Address of principal executive offices) (ZIP code) Dorothy E. Bourassa, 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: December 31 Date of reporting period: January 1, 2004 through June 30, 2004 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 ------- BALANCED FUND Semiannual Report 6/30/04 [LOGO] PIONEER Investments(R) Table of Contents - ----------------------------------------------- Letter to Shareowners 1 Portfolio Summary 2 Performance Update 3 Portfolio Management Discussion 6 Schedule of Investments 10 Financial Statements 21 Notes to Financial Statements 28 Trustees, Officers and Service Providers 34 The Pioneer Family of Funds 35 Pioneer Balanced Fund ================================================================================ LETTER TO SHAREOWNERS 6/30/04 ================================================================================ Dear Shareowner, - -------------------------------------------------------------------------------- U.S. equity markets traced a jagged course through the first half of the year, ending on June 30 only slightly ahead of where they started. Mid-sized and small-cap indices scored modest gains, while indicators that track large-cap stocks showed even smaller changes. For bond investors, Treasury issues wound up the period with higher yields and lower prices than at year-end. The same was true of corporate issues, whose prices gave ground in the face of rising interest rates, while high-yield bonds, outstanding performers over recent quarters, also cooled off. Although the economic expansion continued to move ahead, investors were preoccupied with factors that might have undesirable impacts on the economy and the markets. For one thing, the threat of terrorism is never far from our minds. For another, the jump in oil prices, attributed to turmoil in the Mideast and vast demand from China and other developing nations, was a major factor. The cost of gas or oil for heating our homes, and gasoline for our cars is a critical component in household budgets. Industry, too, requires energy, and in many cases petroleum is an essential raw material. The "jobless" recovery became a job-generating machine for a few months, followed by a brief slump and a partial rebound. But strong boosts in employment quickly triggered fears of economic overheating; too much demand for goods and services, the reasons for aggressive corporate hiring, might trigger inflation. That would lead to higher interest rates that could choke off the recovery by causing consumers and businesses to hold back on outlays. In fact, on June 30, the Federal Reserve Board raised short-term interest rates by one-quarter percentage point, the first hike in four years. While there may be further increases, they probably will be gradual; the Federal Reserve Board would like to keep the expansion intact while keeping inflation at bay. And even after the Fed's June move, short-term rates remain near the lowest levels many of us have seen. U.S. businesses, which have done massive amounts of cost-cutting in recent years, can readily accommodate somewhat higher borrowing costs. In addition, the federal income tax cuts that have helped bolster growth over the past several quarters remain in place. More growth choices from Pioneer The possibility of higher interest rates and the economy's direction could have important implications for the way your portfolio is balanced, so an appointment with your professional financial advisor may well be in order. When you talk to your advisor, ask to hear about the Pioneer Oak Ridge and Pioneer Papp Funds. These six additions to our product lineup are designed to broaden your opportunities to pursue growth. Please consider the Funds' investment objectives, risks, charges and expenses carefully before investing. The prospectuses contain that and other information about the Funds and should be read carefully before you invest or send money. To obtain a prospectus and for other information on any Pioneer fund, contact your investment advisor, call 1-800-225-6292 or visit our web site www.pioneerfunds.com. Respectfully, /s/ OSBERT M. HOOD Osbert M. Hood President Pioneer Investment Management, Inc. 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. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. 1 Pioneer Balanced Fund ================================================================================ PORTFOLIO SUMMARY 6/30/04 ================================================================================ Portfolio Diversification - -------------------------------------------------------------------------------- (As a percentage of total investment portfolio) [DATA BELOW IS REPRESENTED BY A PIE CHART IN THE ORIGINAL REPORT] U.S. Common Stocks 65.2% U.S. Government Securities 20.9% U.S. Corporate Bonds 12.3% Collateralized Mortgage Obligations 0.9% Asset Backed Securities 0.7% Sector Distribution - -------------------------------------------------------------------------------- (As a percentage of total long-term securities) [DATA BELOW IS REPRESENTED BY A PIE CHART IN THE ORIGINAL REPORT] Government Obligations 20.9% Consumer Staples 17.9% Financials 12.6% Information Technology 11.6% Consumer Discretionary 9.7% Health Care 9.4% Industrials 7.3% Energy 5.9% Materials 3.8% Utilities 0.5% Telecommunication Services 0.4% 10 Largest Holdings - -------------------------------------------------------------------------------- (As a percentage of total long-term securities) - ----------------------------------------------------------------------------------------- 1. Berkshire Hathaway, Inc. (Class B) 3.53% 6. Gillette Co. 3.17% - ----------------------------------------------------------------------------------------- 2. First Data Corp. 3.35 7. William Wrigley Jr. Co. 3.06 - ----------------------------------------------------------------------------------------- 3. Microsoft Corp. 3.29 8. Anheuser-Busch Companies, Inc. 2.90 - ----------------------------------------------------------------------------------------- 4. Northrop Grumman Corp. 3.27 9. Family Dollar Stores, Inc. 2.64 - ----------------------------------------------------------------------------------------- 5. Pfizer, Inc. 3.23 10. Newmont Mining Corp. 2.48 - ----------------------------------------------------------------------------------------- This list excludes money market and derivative instruments. Portfolio holdings will vary for other periods. 2 Pioneer Balanced Fund ================================================================================ PERFORMANCE UPDATE 6/30/04 CLASS A SHARES ================================================================================ Share Prices and Distributions - -------------------------------------------------------------------------------- Net Asset Value per Share 6/30/04 12/31/03 $9.57 $9.47 Net Distributions per Share Investment Short-Term Long-Term (1/1/04 - 6/30/04) Income Capital Gains Capital Gains $0.0500 $ - $ - Investment Returns - -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Balanced Fund at public offering price, compared to that of the Standard & Poor's 500 Index and the Lehman Brothers Aggregate Bond Index. - -------------------------------------------------------------------------------- Average Annual Total Returns (as of June 30, 2004) Net Asset Public Offering Period Value Price* 10 Years 5.51% 5.03% 5 Years 1.34 0.40 1 Year 8.51 3.64 - -------------------------------------------------------------------------------- * Reflects deduction of the maximum 4.5% sales charge at the beginning of the period and assumes reinvestment of distributions at net asset value. [DATA BELOW IS REPRESENTED BY A MOUNTAIN CHART IN THE ORIGINAL REPORT] Value of $10,000 Investment Pioneer Lehman Brothers Balanced Aggregate Bond Standard & Fund* Index Poor's 500 Index 6/94 9,550 10,000 10,000 9,573 10,099 10,486 11,679 11,965 14,420 6/96 12,834 12,398 17,725 14,621 13,597 23,635 6/98 14,788 14,776 30,394 15,253 14,652 36,787 6/00 16,074 16,356 33,444 15,612 17,737 29,480 6/02 13,863 19,557 22,966 16,080 20,360 29,550 6/04 16,335 20,391 30,567 Performance data shown represents past performance. Past performance does not guarantee future results. Assumes reinvestment of all distributions at net asset value. Investment return and principal value fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance shown. For performance data that is current to the most recent month-end, please call 1-800-225-6292 or visit our web site www.pioneerfunds.com. 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. The Fund adopted its current name and investment objective on February 3, 1997. Prior to that date, the Fund's name was Pioneer Income Fund and its objective was income from a portfolio of income-producing bonds and stocks. The Standard & Poor's (S&P) 500 Index is an unmanaged measure of 500 widely held common stocks listed on the New York Stock Exchange, American Stock Exchange and the over-the-counter market. The Lehman Brothers Aggregate Bond Index is a widely recognized market value-weighted index composed of the Lehman Brothers Government/Credit, Mortgage-Backed, Asset-Backed and Commercial Mortgage-Based Securities indices. Index returns assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. You cannot invest directly in any Index. 3 Pioneer Balanced Fund ================================================================================ PERFORMANCE UPDATE 6/30/04 CLASS B SHARES ================================================================================ Share Prices and Distributions - -------------------------------------------------------------------------------- Net Asset Value per Share 6/30/04 12/31/03 $9.47 $9.37 Net Distributions per Share Investment Short-Term Long-Term (1/1/04 - 6/30/04) Income Capital Gains Capital Gains $0.0100 $ - $ - Investment Returns - -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Balanced Fund, compared to that of the Standard & Poor's 500 Index and the Lehman Brothers Aggregate Bond Index. - -------------------------------------------------------------------------------- Average Annual Total Returns (as of June 30, 2004) If If Period Held Redeemed* Life-of-Class (4/28/95) 4.32% 4.32% 5 Years 0.42 0.23 1 Year 7.41 3.41 * Reflects deduction of the maximum applicable contingent deferred sales charge (CDSC) at the end of the period and assumes reinvestment of distributions at net asset value. The maximum CDSC of 4% declines over six years. - -------------------------------------------------------------------------------- [DATA BELOW IS REPRESENTED BY A MOUNTAIN CHART IN THE ORIGINAL REPORT] Value of $10,000 Investment Pioneer Lehman Brothers Balanced Aggregate Bond Standard & Fund* Index Poor's 500 Index 4/95 10,000 10,000 10,000 11,374 11,123 12,175 6/96 12,400 11,525 14,966 14,010 12,640 19,956 6/98 14,036 13,736 25,663 14,350 13,621 31,060 6/00 14,981 15,205 28,238 14,423 16,489 24,891 6/02 12,707 18,181 19,391 14,576 18,927 24,950 6/04 14,747 18,956 25,808 Performace data shown represents past performance. Past performance does not guarantee future results. Assumes reinvestment of all distributions at net asset value. Investment return and principal value fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance shown. For performance data that is current to the most recent month-end, please call 1-800-225-6292 or visit our web site www.pioneerfunds.com. 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. The Fund adopted its current name and investment objective on February 3, 1997. Prior to that date, the Fund's name was Pioneer Income Fund and its objective was income from a portfolio of income-producing bonds and stocks. The Standard & Poor's (S&P) 500 Index is an unmanaged measure of 500 widely held common stocks listed on the New York Stock Exchange, American Stock Exchange and the over-the-counter market. The Lehman Brothers Aggregate Bond Index is a widely recognized market value-weighted index composed of the Lehman Brothers Government/Credit, Mortgage-Backed, Asset-Backed and Commercial Mortgage-Based Securities indices. Index returns assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. You cannot invest directly in any Index. 4 Pioneer Balanced Fund ================================================================================ PERFORMANCE UPDATE 6/30/04 CLASS C SHARES ================================================================================ Share Prices and Distributions - -------------------------------------------------------------------------------- Net Asset Value per Share 6/30/04 12/31/03 $9.54 $9.45 Net Distributions per Share Investment Short-Term Long-Term (1/1/04 - 6/30/04) Income Capital Gains Capital Gains $0.0100 $ - $ - Investment Returns - -------------------------------------------------------------------------------- The mountain chart on the right shows the change in value of a $10,000 investment made in Pioneer Balanced Fund, compared to that of the Standard & Poor's 500 Index and the Lehman Brothers Aggregate Bond Index. - -------------------------------------------------------------------------------- Average Annual Total Returns (as of June 30, 2004) If If Period Held Redeemed* Life-of-Class (1/31/96) 2.95% 2.95% 5 Years 0.20 0.20 1 Year 7.33 7.33 - -------------------------------------------------------------------------------- * 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. Class C shares held for less than 1 year are subject to a 1% contingent deferred sales charge. [DATA BELOW IS REPRESENTED BY A MOUNTAIN CHART IN THE ORIGINAL REPORT] Value of $10,000 Investment Pioneer Lehman Brothers Balanced Aggregate Bond Standard & Fund* Index Poor's 500 Index 1/96 10,000 10,000 10,000 10,812 10,294 11,888 12,269 11,289 15,852 6/98 12,302 12,268 20,385 12,550 12,165 24,672 6/00 13,046 13,580 22,430 12,509 14,727 19,771 6/02 11,005 16,238 15,403 12,637 16,905 19,819 6/04 12,770 16,931 20,500 Performance data shown represents past performance. Past performance does not guarantee future results. Assumes reinvestment of all distributions at net asset value. Investment return and principal value fluctuate, and shares, when redeemed, may be worth more or less than their original cost. Current performance may be lower or higher than the performance shown. For performance data that is current to the most recent month-end, please call 1-800-225-6292 or visit our web site www.pioneerfunds.com. 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. The Fund adopted its current name and investment objective on February 3, 1997. Prior to that date, the Fund's name was Pioneer Income Fund and its objective was income from a portfolio of income-producing bonds and stocks. The Standard & Poor's (S&P) 500 Index is an unmanaged measure of 500 widely held common stocks listed on the New York Stock Exchange, American Stock Exchange and the over-the-counter market. The Lehman Brothers Aggregate Bond Index is a widely recognized market value-weighted index composed of the Lehman Brothers Government/Credit, Mortgage-Backed, Asset-Backed and Commercial Mortgage-Based Securities indices. Index returns assume reinvestment of dividends and, unlike Fund returns, do not reflect any fees, expenses or sales charges. You cannot invest directly in any Index. 5 Pioneer Balanced Fund ================================================================================ PORTFOLIO MANAGEMENT DISCUSSION 6/30/04 ================================================================================ While the economy grew and corporate profits rose during the first half of 2004, stock market returns were muted by worries about rising interest rates as well as geopolitical issues around the world. In the fixed income markets, the jump in interest rates midway through the six months sent many bond prices lower, resulting in weak returns in most sectors. In the following interview, Timothy Mulrenan, who is responsible for the equity portfolio of Pioneer Balanced Fund, and Richard Schlanger, who is responsible for the Fund's fixed income portfolio, discuss the markets and their investment strategies during the six months ended June 30, 2004. Q: How did the Fund perform during the first six months of 2004? A: Pioneer Balanced Fund's Class A shares had a total return of 1.59% during the six months ended June 30, 2004, while Class B and Class C shares returned, respectively, 1.18% and 1.06%, all at net asset value. During the same six months, the average return of the funds in Lipper's Balanced Fund category was 1.79%. Q: What were the factors that affected performance? A: The domestic equity market produced generally positive returns for the six months, but those returns masked the underlying volatility and tensions between conflicting influences. Supporting equity valuations were an expanding economy and robust corporate profits. Reported earnings tended to be 25% higher than in the comparable period of 2003. The competing negative factors included the spike in market interest rates midway through the six months, as well as uncertainty brought on by concerns over issues such as energy prices, stability in Iraq and presidential election-year politics. In the fixed income markets, interest rates tended to rise, with shorter-maturity rates rising farther than longer-term rates. The price losses brought on by the higher rates as well as the flattening of the yield curve - or difference between short-term and long-term yields - resulted in volatility in the bond market. The key factor was the widely anticipated announcement by the Federal Reserve Board on the final day of the period to begin tightening monetary policy by starting to raise the influential overnight lending rate - the Fed Funds rate. The initial hike was from 1.00% to 1.25%, but the expectation was that the Fed would raise rates further in the months to come in an effort to guard against inflationary pressures. 6 Pioneer Balanced Fund ================================================================================ ================================================================================ Q: What were the principal strategies during the period? A: We kept the allocation between equities and bonds consistent during the six months. On June 30, about 64% of assets were invested in stocks - about the same percentage as at the start of the period. The remaining assets were invested in fixed income assets, including corporate bonds, government securities, and mortgage-backed securities, with a small allocation in foreign bonds and less than 2% in cash. There also were no major changes in the equity portfolio, although we did trim our energy position to take profits and to reduce our vulnerability to the area during a time when we expected increased price volatility. We remained overweighted in energy stocks, however, and remain positive about the sector's longer-term fundamentals. We modestly increased the Fund's health care holdings, adding medical device company Guidant and pharmaceutical company Eli Lilly. We thought Guidant's stock price had become compellingly attractive after it fell because of an announcement about a delay in a new product introduction. We like Lilly because it has well-developed research and development activities that should produce a flow of new products. In addition, we initiated a position in Liz Claiborne, the apparel company. We think it is attractive because of its strong distribution during a time when the industry is beginning to gain greater control over pricing. We substantially reduced our holdings in two stocks that had performed very well - software company Symantec and auto insurance company Progressive. We also eliminated our position in Devon Energy, an exploration and production company, because of our concerns about its internal cost structure. In the fixed income portfolio, we raised overall quality of the portfolio, with average credit quality moving from A+ to AA-. Interest-rate sensitivity - as measured by duration - was about even with that of the benchmark Lehman Brothers Aggregate Bond Index, although it declined slightly during the six months from 4.52 years to 4.34 years. We increased our exposure to mortgage-backed securities - the best-performing part of the investment-grade sector - from 43.6% of fixed income assets to 47.7%. Mortgages tend to be less 7 Pioneer Balanced Fund ================================================================================ PORTFOLIO MANAGEMENT DISCUSSION 6/30/04 (continued) ================================================================================ vulnerable to declining prices than Treasuries and other government securities in a rising interest-rate environment. We reduced our exposure to corporates, taking profits when their yield advantage over Treasuries began to narrow. At the end of the period, 25.9% of the fixed income portfolio was invested in industrial and utility bonds, compared to 31.4% at the start of the period. At the same time, we also reduced our banking and financial services bond holdings from 10.7% to 9.0% of fixed income assets. When we invest in corporates, we tend to favor new issues, which have a greater yield advantage over Treasuries than existing issues available on the secondary market. When invested in Treasury bonds, we tended to hold TIPS, or inflation-protected Treasuries, although we sold them near the end of the period when the Federal Reserve made it clear it intended to control inflationary pressures. Q: What types of investments had the greatest influence on performance? A: In our equity portfolio, our emphasis on consumer staples companies helped considerably as stock investors began to recognize the value of higher-quality, stable growth companies that had been overlooked in the rally of 2003. Holdings such as Gillette, PepsiCo and Wrigley performed very well. Our technology positions also did well, led by Symantec, whose share price went up 27% during the six months. Detracting from performance, however, was security selection in the consumer discretionary sector. Family Dollar Stores had disappointing earnings, which may have been caused by higher gasoline prices, but we still favor the company and continue to hold it at the end of the period. Newmont Mining, which had been a strong contributor to Fund performance prior to the period, fell 20% during the period in response to slumping gold prices. However, we still believe the company is attractive and continue to hold a position in it on June 30. In the fixed income portfolio, our overweight position in mortgages helped substantially, as did our exposure to corporate bonds - both high yield and investment-grade. Performance was held back, however, by our concentration in intermediate-term securities, as short- and intermediate-term interest rates rose more than the rates on long-term bonds during the six months. 8 Pioneer Balanced Fund ================================================================================ ================================================================================ Q: What is your investment outlook? A: We believe the June 30 announcement by the U.S. Federal Reserve that it was starting to raise short-term rates is the start of a long process of interest-rate hikes that is likely to continue at least through the end of 2005. We anticipate moving to a bar-belled strategy over time with respect to maturity allocations, concentrating on both short-term securities and long-term bonds while de-emphasizing intermediate-term bonds that we think are most vulnerable in the present environment. We believe the equity market will continue to be choppy, with no major trends either up or down in stock price averages. The outlooks for gross domestic product (GDP) and for corporate earnings both are favorable, although the rate of corporate profit growth may slow somewhat. The big question hanging over investors' minds will be what happens to interest rates. In addition, uncertainty about geopolitical events and the outcome of the presidential election will influence investor psychology. We think the most likely scenario is that the major stock averages will show moderate growth over the next several months. 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. Past performance is no guarantee of future results, and there is no guarantee that market forecasts discussed will be realized. 9 Pioneer Balanced Fund ================================================================================ SCHEDULE OF INVESTMENTS 6/30/04 (unaudited) ================================================================================ Shares Value COMMON STOCKS - 64.0% Energy - 5.6% Integrated Oil & Gas - 0.4% 11,200 Exxon Mobil Corp. $ 497,392 ------------ Oil & Gas Drilling - 4.2% 21,800 Encana Corp. $ 940,888 107,400 ENSCO International, Inc. 3,125,340 63,600 Varco International, Inc.* 1,392,204 ------------ $ 5,458,432 ------------ Oil & Gas Exploration & Production - 1.0% 38,000 Pioneer Natural Resources Co. $ 1,333,040 ------------ Total Energy $ 7,288,864 ------------ Materials - 2.4% Precious Metals & Minerals - 2.4% 83,000 Newmont Mining Corp. $ 3,217,080 ------------ Total Materials $ 3,217,080 ------------ Capital Goods - 3.7% Aerospace & Defense - 3.3% 79,000 Northrop Grumman Corp. $ 4,242,300 ------------ Electrical Components & Equipment - 0.4% 23,800 Molex, Inc. $ 649,264 ------------ Total Capital Goods $ 4,891,564 ------------ Commercial Services & Supplies - 0.5% Diversified Commercial Services - 0.5% 13,000 Cintas Corp. $ 619,710 ------------ Total Commercial Services & Supplies $ 619,710 ------------ Transportation - 2.2% Trucking - 2.2% 38,800 United Parcel Service $ 2,916,596 ------------ Total Transportation $ 2,916,596 ------------ Media - 2.8% Broadcasting & Cable TV - 1.1% 16,600 Clear Channel Communications, Inc. $ 613,370 28,900 Comcast Corp* 797,928 ------------ $ 1,411,298 ------------ 10 The accompanying notes are an integral part of these financial statements. Pioneer Balanced Fund ================================================================================ ================================================================================ Shares Value Movies & Entertainment - 1.7% 64,700 Viacom, Inc. (Class B) $ 2,311,084 ------------- Total Media $ 3,722,382 ------------- Retailing - 3.1% Apparel Retail - 0.5% 19,200 Liz Claiborne, Inc. $ 690,816 ------------- General Merchandise Stores - 2.6% 112,800 Family Dollar Stores, Inc. $ 3,431,376 ------------- Total Retailing $ 4,122,192 ------------- Food & Drug Retailing - 6.6% Drug Retail - 0.8% 25,000 CVS Corp. $ 1,050,500 ------------- Food Distributors - 1.9% 36,700 Cardinal Health, Inc. $ 2,570,835 ------------- Food Retail - 3.0% 63,000 Wm. Wrigley Jr. Co. $ 3,972,150 ------------- Hypermarkets & Supercenters - 0.9% 22,100 Wal-Mart Stores, Inc. $ 1,165,996 ------------- Total Food & Drug Retailing $ 8,759,481 ------------- Food, Beverage & Tobacco - 6.6% Distillers & Vintners - 2.9% 69,600 Anheuser-Busch Companies, Inc. $ 3,758,400 ------------- Soft Drinks - 3.7% 37,800 The Coca-Cola Co. $ 1,908,144 55,500 PepsiCo, Inc. 2,990,340 ------------- $ 4,898,484 ------------- Total Food, Beverage & Tobacco $ 8,656,884 ------------- Household & Personal Products - 4.1% Household Products - 1.0% 27,200 Estee Lauder Co. $ 1,326,816 ------------- Personal Products - 3.1% 96,900 Gillette Co. $ 4,108,560 ------------- Total Household & Personal Products $ 5,435,376 ------------- The accompanying notes are an integral part of these financial statements. 11 Pioneer Balanced Fund ================================================================================ SCHEDULE OF INVESTMENTS 6/30/04 (unaudited) (continued) ================================================================================ Shares Value Health Care Equipment & Services - 3.6% Health Care Distributors - 1.5% 53,200 Wyeth $ 1,923,712 ------------ Health Care Equipment - 2.1% 52,700 Biomet, Inc. $ 2,341,988 8,700 Guidant Corp. 486,156 ------------ $ 2,828,144 ------------ Total Health Care Equipment & Services $ 4,751,856 ------------ Pharmaceuticals & Biotechnology - 5.0% Biotechnology - 0.5% 13,468 Amgen, Inc.* $ 734,949 ------------ Pharmaceuticals - 4.5% 11,100 Eli Lilly & Co. $ 776,001 18,900 Merck & Co., Inc. 897,750 122,341 Pfizer, Inc. 4,193,849 ------------ $ 5,867,600 ------------ Total Pharmaceuticals & Biotechnology $ 6,602,549 ------------ Diversified Financials - 2.3% Asset Management & Custody Banks - 0.9% 40,200 The Bank of New York Co., Inc. $ 1,185,096 ------------ Consumer Finance - 1.4% 36,700 American Express Co. $ 1,885,646 ------------ Total Diversified Financials $ 3,070,742 ------------ Insurance - 5.2% Property & Casualty Insurance - 5.2% 1,550 Berkshire Hathaway, Inc. (Class B)* $ 4,580,250 27,000 Progressive Corp.* 2,303,100 ------------ Total Insurance $ 6,883,350 ------------ Software & Services - 8.4% Application Software - 5.1% 149,400 Microsoft Corp. $ 4,266,864 57,400 Symantec Corp.* 2,512,972 ------------ $ 6,779,836 ------------ 12 The accompanying notes are an integral part of these financial statements. Pioneer Balanced Fund ================================================================================ ================================================================================ Shares Value Data Processing & Outsourced Services - 3.3% 97,700 First Data Corp. $ 4,349,604 ------------ Total Software & Services $ 11,129,440 ------------ Technology Hardware & Equipment - 1.5% Computer Hardware - 1.5% 94,900 Hewlett-Packard Co. $ 2,002,390 ------------ Total Technology Hardware & Equipment $ 2,002,390 ------------ Semiconductors - 0.4% 18,000 Intel Corp. $ 496,800 ------------ Total Semiconductors $ 496,800 ------------ TOTAL COMMON STOCKS (Cost $71,853,529) $ 84,567,256 ------------ S&P/Moody's Principal Ratings Amount (unaudited) Value ASSET BACKED SECURITIES - 0.7% Transportation - 0.0% Airlines - 0.0% $ 12,776 BBB+/Baa3 Continental Airlines, 6.648%, 9/15/17 $ 11,925 ------------ Total Transportation $ 11,925 ------------ Diversified Financials - 0.5% Diversified Financial Services - 0.5% 269,455 BBB-/Baa2 PF Export Receivable Master Trust, 6.436%, 6/1/15 (144A) $ 265,712 304,725 BBB/Baa2 Power Receivables Finance, 6.29%, 1/1/12 (144A) 310,293 ------------ Total Diversified Financials $ 576,005 ------------ Real Estate - 0.2% Real Estate Investment Trusts - 0.2% 300,000 BBB-/Baa3 Global Signal Trust, 5.395%, 1/15/34 (144A) $ 288,260 ------------ Total Real Estate $ 288,260 ------------ TOTAL ASSET BACKED SECURITIES (Cost $884,377) $ 876,190 ------------ The accompanying notes are an integral part of these financial statements. 13 Pioneer Balanced Fund ================================================================================ SCHEDULE OF INVESTMENTS 6/30/04 (unaudited) (continued) ================================================================================ S&P/Moody's Principal Ratings Amount (unaudited) Value COLLATERALIZED MORTGAGE OBLIGATIONS - 1.1% Banks - 0.7% Thrifts & Mortgage Finance - 0.7% $ 957,664 BBB/Aaa Structured Asset Securities Corp., 6.0765%, 8/25/32 $ 934,212 ------------ Total Banks $ 934,212 ------------ Government - 0.4% 300,000 AAA/Aaa Freddie Mac, 3.25%, 2/25/08 $ 293,859 238,975 AAA/Aaa Freddie Mac, 5.00%, 1/15/16 243,789 ------------ Total Government $ 537,648 ------------ TOTAL COLLATERALIZED MORTGAGE OBLIGATIONS (Cost $1,531,095) $ 1,471,860 ------------ CORPORATE BONDS - 12.1% Energy - 0.3% Integrated Oil & Gas - 0.1% 120,000 BBB+/Baa1 Occidental Petroleum, 6.75%, 1/15/12 $ 132,161 ------------ Oil & Gas Refining Marketing & Transportation - 0.2% 200,000 BBB/Ba1 Magellan Midstream Partners, L.P., 6.45%, 6/1/14 $ 200,898 ------------ Total Energy $ 333,059 ------------ Materials - 1.3% Commodity Chemicals - 0.2% 300,000 BB+/Ba2 Nova Chemicals Ltd., 6.5%, 1/15/12 $ 295,500 ------------ Diversified Metals & Mining - 0.3% 425,000 BBB-/Baa3 Inco Ltd., 7.2%, 9/15/32 $ 447,803 ------------ Metal & Glass Containers - 0.1% 125,000 BBB/Baa2 Tenneco Packaging, 8.125%, 6/15/17 $ 148,461 ------------ Paper Products - 0.2% 250,000 BB/Ba2 Abitibi-Consolidated, Inc., 6.95%, 4/1/08 $ 253,249 ------------ Specialty Chemicals - 0.3% 300,000 BBB-/Baa3 Ferro Corp., 9.125%, 1/1/09 $ 344,509 ------------ Steel - 0.2% 225,000 BB/Ba3 International Steel Group, 6.5%, 4/15/14 (144A) $ 210,938 ------------ Total Materials $ 1,700,460 ------------ 14 The accompanying notes are an integral part of these financial statements. Pioneer Balanced Fund ================================================================================ ================================================================================ S&P/Moody's Principal Ratings Amount (unaudited) Value Capital Goods - 0.8% Aerospace & Defense - 0.1% $ 100,000 B/B3 K&F Industries, 9.625%, 12/15/10 $ 109,625 ------------ Electrical Components & Equipment - 0.2% 200,000 BBB-/Ba1 Thomas & Betts Corp., 7.25%, 6/1/13 $ 211,844 ------------ Industrial Conglomerates - 0.2% 145,000 AAA/Aaa General Electric Capital Corp., 6.125%, 2/22/11 $ 155,286 90,000 AAA/Aaa General Electric Capital Corp., 6.75%, 3/15/32 96,751 ------------ $ 252,037 ------------ Industrial Machinery - 0.3% 400,000 BBB-/Ba1 Timken Co., 5.75%, 2/15/10 $ 400,838 ------------ Total Capital Goods $ 974,344 ------------ Automobiles & Components - 0.7% Automobile Manufacturers - 0.7% 150,000 BBB-/A3 Ford Motor Credit Co., 9.14%, 12/30/14 $ 154,392 500,000 BBB-/Baa1 General Motors, 7.2%, 1/15/11 523,898 300,000 BB+/Ba1 Hyundai Motor Co., Ltd., 5.3%, 12/19/08 295,226 ------------ Total Automobiles & Components $ 973,516 ------------ Hotels, Restaurants & Leisure - 0.5% Casinos & Gaming - 0.1% 100,000 B+/B1 Turning Stone, 9.125%, 12/15/10 (144A) $ 104,500 ------------ Hotels, Resorts & Cruise Lines - 0.4% 500,000 BBB-/Baa3 Hilton Hotels, 7.625%, 12/1/12 $ 537,500 ------------ Total Hotels, Restaurants & Leisure $ 642,000 ------------ Media - 1.9% Broadcasting & Cable TV - 1.2% 500,000 BBB/Baa3 Comcast Cable Corp., 7.125%, 6/15/13 $ 546,531 530,000 BBB/Baa2 Cox Communications, 7.125%, 10/1/12 580,854 415,000 BB-/Ba3 Echostar DBS Corp., 6.375%, 10/1/11 (144A) 408,775 ------------ $ 1,536,160 ------------ Movies & Entertainment - 0.3% 400,000 BBB+/Baa1 AOL Time Warner, Inc., 6.875%, 5/1/12 $ 432,237 ------------ The accompanying notes are an integral part of these financial statements. 15 Pioneer Balanced Fund ================================================================================ SCHEDULE OF INVESTMENTS 6/30/04 (unaudited) (continued) ================================================================================ S&P/Moody's Principal Ratings Amount (unaudited) Value Publishing - 0.4% $ 512,000 BBB-/Baa3 News America, Inc., 7.3%, 4/30/28 $ 555,207 ------------ Total Media $ 2,523,604 ------------ Retailing - 0.5% Department Stores - 0.1% 150,000 BB+/Ba3 J.C. Penney Co., Inc., 8.25%, 8/15/22 $ 156,000 ------------ Specialty Stores - 0.4% 500,000 BB/Ba2 Toys "R" Us, 7.875%, 4/15/13 $ 501,875 ------------ Total Retailing $ 657,875 ------------ Food, Beverage & Tobacco - 0.3% Tobacco - 0.3% 400,000 BBB/Baa2 Altria Group, Inc., 7.0%, 11/4/13 $ 407,329 ------------ Total Food, Beverage & Tobacco $ 407,329 ------------ Health Care Equipment & Services - 0.6% Health Care Facilities - 0.4% 500,000 BBB-/Ba1 HCA, Inc., 6.3%, 10/1/12 $ 500,257 ------------ Health Care Supplies - 0.2% 250,000 BBB-/Baa3 Bausch & Lomb, 7.125%, 8/1/28 $ 250,296 ------------ Total Health Care Equipment & Services $ 750,553 ------------ Pharmaceuticals & Biotechnology - 0.1% Pharmaceuticals - 0.1% 100,000 AAA/Aaa Pharmacia Corp., 6.6%, 12/1/28 $ 108,304 ------------ Total Pharmaceuticals & Biotechnology $ 108,304 ------------ Banks - 0.5% Diversified Banks - 0.3% 150,000 NR/Aaa KFW-Kredit Wiederaufbau, 2.75%, 5/8/07 $ 146,809 225,000 AA-/Aa2 National Westminster, 7.375%, 10/1/09 254,865 ------------ $ 401,674 ------------ Thrifts & Mortgage Finance - 0.2% 300,000 BBB-/Baa3 Sovereign Bank, 5.125%, 3/15/13 $ 285,181 ------------ Total Banks $ 686,855 ------------ 16 The accompanying notes are an integral part of these financial statements. Pioneer Balanced Fund ================================================================================ ================================================================================ S&P/Moody's Principal Ratings Amount (unaudited) Value Diversified Financials - 1.1% Investment Banking & Brokerage - 0.2% $ 200,000 B+/B1 E*Trade Financial Corp., 8.0%, 6/15/11 (144A) $ 199,000 ------------ Diversified Financial Services - 0.7% 300,000 A-/Baa3 Brascan Corp., 5.75%, 3/1/10 $ 308,545 275,000 A+/Aa2 Citigroup, Inc., 7.25%, 10/1/10 309,706 300,000 BBB/Baa3 Glencore Funding LLC, 6.0%, 4/15/14 (144A) 278,262 ------------ $ 896,513 ------------ Specialized Finance - 0.2% 300,000 B/B2 MDP Acquistions, 9.625%, 10/1/12 $ 328,500 ------------ Total Diversified Financials $ 1,424,013 ------------ Insurance - 1.1% Life & Health Insurance - 0.2% 300,000 BB+/Ba1 Provident Companies, Inc., 7.0%, 7/15/18 $ 285,692 ------------ Multi-Line Insurance - 0.1% 150,000 A/Baa1 Loew Corp., 5.25%, 3/15/16 $ 139,793 ------------ Property & Casualty Insurance - 0.6% 200,000 BBB-/Baa1 Arch Capital Group Ltd., 7.35%, 5/1/34 $ 201,324 350,000 BBB+/Baa2 Berkley (WR), 5.875%, 2/15/13 357,206 180,000 BBB-/Baa1 Kingsway America, Inc., 7.5%, 2/1/14 176,904 ------------ $ 735,434 ------------ Reinsurance - 0.2% 300,000 BBB-/Baa3 Odyssey Re Holdings, 7.65%, 11/1/13 $ 322,490 ------------ Total Insurance $ 1,483,409 ------------ Real Estate - 0.6% Real Estate Investment Trusts - 0.6% 400,000 BBB-/Baa3 Hospitality Properties Trust, 6.75%, 2/15/13 $ 415,271 300,000 BBB-/Baa3 Colonial Reality LP, 6.15%, 4/15/13 304,808 ------------ Total Real Estate $ 720,079 ------------ The accompanying notes are an integral part of these financial statements. 17 Pioneer Balanced Fund ================================================================================ SCHEDULE OF INVESTMENTS 6/30/04 (unaudited) (continued) ================================================================================ S&P/Moody's Principal Ratings Amount (unaudited) Value Technology Hardware & Equipment - 1.1% Computer Hardware - 0.7% $ 500,000 BBB-/Baa3 NCR Corp., 7.125%, 6/15/09 $ 546,908 300,000 BB+/Ba1 UNISYS Corp., 6.875%, 3/15/10 309,000 ------------ $ 855,908 ------------ Electronic Manufacturing Services - 0.2% 250,000 BB+/Baa3 Jabil Circuit, Inc., 5.875%, 7/15/10 $ 258,249 ------------ Technology Distributors - 0.2% 300,000 BBB-/Baa3 Arrow Electronic, Inc., 6.875%, 7/1/13 $ 313,368 ------------ Total Technology Hardware & Equipment $ 1,427,525 ------------ Telecommunication Services - 0.4% Integrated Telecommunication Services - 0.4% 300,000 BBB+/Baa3 Intelsat Ltd., 6.5%, 11/1/13 $ 265,030 300,000 BBB+/Baa2 Telecom Italia S.p.A. 5.25%, 11/15/13 (144A) 290,354 ------------ Total Telecommunication Services $ 555,384 ------------ Utilities - 0.5% Electric Utilities - 0.2% 313,500 BBB-/Baa3 FPL Energy American Wind LLC, 6.639%, 6/20/23 (144A) $ 320,096 ------------ Multi-Utilities & Unregulated Power - 0.3% 300,000 B/B1 Reliant Energy, Inc., 9.5%, 7/15/13 $ 323,250 ------------ Total Utilities $ 643,346 ------------ TOTAL CORPORATE BONDS (Cost $15,588,191) $ 16,011,655 ------------ 18 The accompanying notes are an integral part of these financial statements. Pioneer Balanced Fund ================================================================================ ================================================================================ Principal Amount Value U.S. GOVERNMENT AND AGENCY OBLIGATIONS - 20.3% $ 433,717 Federal Home Loan Bank, 5.5%, 10/1/16 $ 444,576 130,249 Federal Home Loan Bank, 6.5%, 5/1/09 137,853 990,901 Federal Home Loan Mortgage, 5.0%, 4/1/34 957,568 377,093 Federal Home Loan Mortgage, 5.5%, 12/1/18 387,616 1,999,960 Federal Home Loan Mortgage, 6.0%, 1/1/33 to 6/1/34 2,045,850 651,303 Federal Home Loan Mortgage, 6.5%, 10/1/33 to 11/1/33 681,850 970,122 Federal National Mortgage Association, 5.0%, 5/1/18 to 6/1/34 955,995 2,955,351 Federal National Mortgage Association, 5.5%, 8/1/14 to 4/1/34 2,981,072 2,503,413 Federal National Mortgage Association, 6.0%, 11/1/16 to 12/1/33 2,563,179 1,260,000 Federal National Mortgage Association, 6.125%, 3/15/12 1,358,682 1,890,658 Federal National Mortgage Association, 6.5%, 12/1/21 to 10/1/32 1,973,368 40,000 Federal National Mortgage Association, 7.125%, 6/15/10 45,410 106,886 Federal National Mortgage Association, 9.0%, 4/1/33 118,825 1,446,551 Government National Mortgage Association, 5.5%, 8/15/33 to 9/15/33 1,448,158 2,211,435 Government National Mortgage Association, 6.0%, 9/15/33 to 10/15/33 2,270,006 655,862 Government National Mortgage Association, 6.5%, 10/15/28 to 5/15/33 686,811 18,385 Government National Mortgage Association, 7.5%, 1/15/30 19,838 68,461 Government National Mortgage Association, 8.0%, 2/15/30 75,052 537,229 Government National Mortgage Association II, 5.5%, 2/20/34 536,781 2,520,293 Government National Mortgage Association II, 6.0%, 10/20/33 to 11/20/33 2,586,467 700,000 U.S. Treasury Bonds, 4.75%, 11/15/08 731,063 The accompanying notes are an integral part of these financial statements. 19 Pioneer Balanced Fund ================================================================================ SCHEDULE OF INVESTMENTS 6/30/04 (unaudited) (continued) ================================================================================ Principal Amount Value U.S. GOVERNMENT AND AGENCY OBLIGATIONS - (continued) $ 1,985,000 U.S. Treasury Notes, 4.0%, 11/15/12 $ 1,921,806 300,000 U.S. Treasury Notes, 4.75%, 5/15/14 303,129 1,500,000 U.S. Treasury Notes, 5.625%, 5/15/08 1,614,609 ------------ TOTAL U.S. GOVERNMENT AND AGENCY OBLIGATIONS (Cost $26,999,074) $ 26,845,564 ------------ TOTAL INVESTMENTS IN SECURITIES - 98.2% (Cost $116,856,266)(a)(b) $129,772,525 ------------ OTHER ASSETS AND LIABILITIES - 1.8% $ 2,331,235 ------------ TOTAL NET ASSETS - 100.0% $132,103,760 ============ * Non-income producing security. NR Not rated by either S&P or Moody's (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 June 30, 2004, the value of these securities amounted to $2,676,190 or 2.03% of total net assets. TBA TBA (To Be Assigned) securities are purchased on a forward commitment basis with an approximate (generally plus/minus 2.5%) principal and no definite maturity date period The actual principal amount and maturity date will be determined upon settlement when the specific mortgage pools are assigned. (a) At June 30, 2004 the net unrealized gain on investments based on cost for federal income tax purposes of $116,930,027 was as follows: Aggregate gross unrealized gain for all investments in which there is an excess of value over tax cost $14,237,292 Aggregate gross unrealized loss for all investments in which there is anexcess of tax cost over value (1,394,794) ----------- Net unrealized gain $12,842,498 =========== (b) At June 30, 2004 the Fund had a net capital loss carryforward of $13,510,963 which will expire between 2006 and 2010, if not utilized. $1,527,766 in 2006 $6,824,457 in 2010 $5,158,740 in 2011 Purchases and sales of securities (excluding temporary cash investments) for the six months ended June 30. 2004 aggregated $21,930,430 and $24,267,397, respectively. 20 The accompanying notes are an integral part of these financial statements. Pioneer Balanced Fund ================================================================================ STATEMENT OF ASSETS AND LIABILITIES 6/30/04 (unaudited) ================================================================================ ASSETS: Investment in securities, at value (cost $116,856,266) $129,772,525 Cash 2,454,871 Receivables - Investment securities sold 759,296 Fund shares sold 220,178 Dividends, interest and foreign taxes withheld 473,996 Other 333 ------------ Total assets $133,681,199 ------------ LIABILITIES: Payables - Investment securities purchased $ 1,255,330 Fund shares repurchased 64,977 Due to affiliates 182,793 Accrued expenses 74,339 ------------ Total liabilities $ 1,577,439 ------------ NET ASSETS: Paid-in capital $129,408,977 Accumulated net investment income 221,468 Accumulated net realized loss on investments (10,442,944) Net unrealized gain on investments 12,916,259 ------------ Total net assets $132,103,760 ============ NET ASSET VALUE PER SHARE: (No par value, unlimited number of shares authorized) Class A (based on $103,880,652/10,851,975 shares) $ 9.57 ============ Class B (based on $18,462,111/1,949,543 shares) $ 9.47 ============ Class C (based on $9,760,997/1,023,264 shares) $ 9.54 ============ MAXIMUM OFFERING PRICE: Class A ($9.57 [divided by] 95.5%) $ 10.02 ============ Class C ($9.54 [divided by] 99.0%) $ 9.64 ============ The accompanying notes are an integral part of these financial statements. 21 Pioneer Balanced Fund ================================================================================ STATEMENT OF OPERATIONS (unaudited) ================================================================================ For the Six Months Ended 6/30/04 INVESTMENT INCOME: Dividends (Net of foreign taxes withheld of $476) $ 406,424 Interest (Net of foreign taxes withheld of $283) 1,314,146 ---------- Total investment income $ 1,720,570 ------------ EXPENSES: Management fees $ 426,777 Transfer agent fees Class A 161,744 Class B 44,386 Class C 27,457 Distribution fees Class A 131,181 Class B 86,044 Class C 45,810 Administrative fees 13,233 Custodian fees 2,666 Registration fees 34,239 Professional fees 9,502 Printing 2,870 Fees and expenses of nonaffiliated trustees 2,808 Miscellaneous 3,913 ---------- Total expenses $ 992,630 ------------ Less fees paid indirectly (1,629) ------------ Net expenses $ 991,001 ------------ Net investment income $ 729,569 ------------ REALIZED AND UNREALIZED GAIN (LOSS) ON INVESTMENTS: Net realized gain on investments $ 3,202,381 ------------ Change in net unrealized loss on investments $ (1,916,653) ------------ Net gain on investments $ 1,285,728 ------------ Net increase in net assets resulting from operations $ 2,015,297 ============ The accompanying notes are an integral part of these financial statements. 22 Pioneer Balanced Fund ================================================================================ STATEMENTS OF CHANGES IN NET ASSETS ================================================================================ For the Six Months Ended 6/30/04 and the Year Ended 12/31/03 Six Months Ended 6/30/04 Year Ended (unaudited) 12/31/03 FROM OPERATIONS: Net investment income $ 729,569 $ 1,368,139 Net realized gain on investments 3,202,381 1,587,565 Change in net unrealized gain (loss) on investments (1,916,653) 15,653,026 ------------ ------------ Net increase in net assets resulting from operations $ 2,015,297 $ 18,608,730 ------------ ------------ DISTRIBUTIONS TO SHAREOWNERS: Net investment income: Class A ($0.05 and $0.14 per share, respectively) $ (543,338) $ (1,600,449) Class B ($0.01 and $0.05 per share, respectively) (19,399) (75,922) Class C ($0.01 and $0.04 per share, respectively) (10,095) (36,184) ------------ ------------ Total distributions to shareowners $ (572,832) $ (1,712,555) ------------ ------------ FROM FUND SHARE TRANSACTIONS: Net proceeds from sale of shares $ 14,142,239 $ 27,583,670 Reinvestment of distributions 519,411 1,559,351 Cost of shares repurchased (15,849,361) (44,985,862) ------------ ------------ Net decrease in net assets resulting from fund share transactions $ (1,187,711) $(15,842,841) ------------ ------------ Net increase in net assets $ 254,754 $ 1,053,334 NET ASSETS: Beginning of period 131,849,006 130,795,672 ------------ ------------ End of period (accumulated net investment income of $212,468 and $64,731 respectively) $132,103,760 $131,849,006 ============ ============ The accompanying notes are an integral part of these financial statements. 23 Pioneer Balanced Fund ================================================================================ STATEMENTS OF CHANGES IN NET ASSETS (continued) ================================================================================ For the Six Months Ended 6/30/04 and the Year Ended 12/31/03 '04 Shares '04 Amount (unaudited) (unaudited) '03 Shares '03 Amount CLASS A Shares sold 558,526 $ 5,337,505 1,716,085 $ 14,763,083 Reinvestment of distributions 51,740 493,794 163,222 1,459,391 Less shares repurchased (1,084,282) (10,393,171) (3,422,395) (29,595,678) ---------- ----------- ---------- ------------ Net decrease (474,016) $(4,561,872) (1,543,088) $(13,373,204) ---------- ----------- ---------- ------------ CLASS B Shares sold 598,900 $ 5,641,545 919,101 $ 7,827,081 Reinvestment of distributions 1,793 16,963 7,559 67,534 Less shares repurchased (375,766) (3,550,281) (1,183,145) (9,987,739) ---------- ----------- ---------- ------------ Net increase (decrease) 224,927 $ 2,108,227 (256,485) $ (2,093,124) ---------- ----------- ---------- ------------ CLASS C Shares sold 332,363 $ 3,163,189 580,857 $ 4,993,506 Reinvestment of distributions 908 8,654 3,605 32,426 Less shares repurchased (200,872) (1,905,909) (637,455) (5,402,445) ---------- ----------- ---------- ------------ Net increase (decrease) 132,399 $ 1,265,934 (52,993) $ (376,513) ---------- ----------- ---------- ------------ The accompanying notes are an integral part of these financial statements. 24 Pioneer Balanced Fund ================================================================================ FINANCIAL HIGHLIGHTS ================================================================================ Six Months Ended 6/30/04 Year Ended Year Ended Year Ended Year Ended Year Ended (unaudited) 12/31/03 12/31/02 12/31/01 (a) 12/31/00 12/31/99 CLASS A Net asset value, beginning of period $ 9.47 $ 8.29 $ 9.46 $ 9.94 $ 9.73 $ 9.74 ------- -------- -------- ------- -------- -------- Increase (decrease) from investment operations: Net investment income $ 0.06 $ 0.12 $ 0.11 $ 0.19 $ 0.30 $ 0.31 Net realized and unrealized gain (loss) on investments 0.09 1.20 (1.17) (0.47) 0.22 (0.01) ------- -------- -------- ------- -------- -------- Net increase (decrease) from investment operations $ 0.15 $ 1.32 $ (1.06) $ (0.28) $ 0.52 $ 0.30 Distributions to shareowners: Net investment income (0.05) (0.14) (0.11) (0.20) (0.31) (0.31) ------- -------- -------- ------- -------- -------- Net increase (decrease) in net asset value $ 0.10 $ 1.18 $ (1.17) $ (0.48) $ 0.21 $ (0.01) ------- -------- -------- ------- -------- -------- Net asset value, end of period $ 9.57 $ 9.47 $ 8.29 $ 9.46 $ 9.94 $ 9.73 ======= ======== ======== ======= ======== ======== Total return* 1.59% 15.99% (11.20)% (2.87)% 5.38% 3.15% Ratio of net expenses to average net assets+ 1.31%** 1.38% 1.41% 1.31% 1.23% 1.23% Ratio of net investment income to average net assets+ 1.31%** 1.25% 1.19% 1.97% 2.96% 3.21% Portfolio turnover rate 34%** 44% 180% 133% 17% 46% Net assets, end of period (in thousands) $103,881 $107,265 $106,734 $141,746 $162,855 $214,866 Ratios with reductions for fees paid indirectly: Net expenses 1.31%** 1.38% 1.41% 1.30% 1.20% 1.21% Net investment income 1.31%** 1.25% 1.19% 1.98% 2.99% 3.23% * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period, and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized + Ratio with no reduction for fees paid indirectly. (a) At January 1, 2001, the Fund began accreting discounts and amortizing premiums on debt securities. The effect of this change for the year ended December 31, 2001 was to decrease net investment income by less than one cent per share, increase net realized and unrealized gain (loss) by less than one cent per share and decrease the ratio of net investment income to average net assets assuming reduction for fees paid indirectly from 2.02% to 1.98%. Per share ratios and supplemental data for periods prior to January 1, 2001, have not been restated to reflect this change in presentation. The accompanying notes are an integral part of these financial statements. 25 Pioneer Balanced Fund ================================================================================ FINANCIAL HIGHLIGHTS ================================================================================ Six Months Ended 6/30/04 Year Ended Year Ended Year Ended Year Ended Year Ended (unaudited) 12/31/03 12/31/02 12/31/01 (a) 12/31/00 12/31/99 CLASS B Net asset value, beginning of period $ 9.37 $ 8.21 $ 9.36 $ 9.85 $ 9.64 $ 9.65 ------- ------- --------- ------- ------- ------- Increase (decrease) from investment operations: Net investment income $ 0.02 $ 0.03 $ 0.02 $ 0.12 $ 0.19 $ 0.22 Net realized and unrealized gain (loss) on investments 0.09 1.18 (1.13) (0.48) 0.23 (0.01) ------- ------- --------- ------- ------- ------- Net increase (decrease) from investment operations $ 0.11 $ 1.21 $ (1.11) $ (0.36) $ 0.42 $ 0.21 Distributions to shareowners: Net investment income (0.01) (0.05) (0.04) (0.13) (0.21) (0.22) ------- ------- --------- ------- ------- ------- Net increase (decrease) in net asset value $ 0.10 $ 1.16 (1.15) $ (0.49) $ 0.21 $ (0.01) ------- ------- --------- ------- ------- ------- Net asset value, end of period $ 9.47 $ 9.37 $ 8.21 $ 9.36 $ 9.85 $ 9.64 ======= ======= ========= ======= ======= ======= Total return* 1.18% 14.71% (11.90)% (3.72)% 4.39% 2.24% Ratio of net expenses to average net assets+ 2.27%** 2.35% 2.32% 2.20% 2.15% 2.14% Ratio of net investment income to average net assets+ 0.35%** 0.27% 0.28% 1.04% 2.03% 2.30% Portfolio turnover rate 34%** 44% 180% 133% 17% 46% Net assets, end of period (in thousands) $18,462 $16,168 $ 16,256 $18,110 $16,413 $19,865 Ratios with reduction for fees paid indirectly: Net expenses 2.27%** 2.35% 2.32% 2.19% 2.13% 2.12% Net investment income 0.35%** 0.27% 0.28% 1.05% 2.05% 2.32% * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period, and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized + Ratio with no reduction for fees paid indirectly. (a) At January 1, 2001, the Fund began accreting discounts and amortizing premiums on debt securities. The effect of this change for the year ended December 31, 2001 was to decrease net investment income by less than one cent per share, increase net realized and unrealized gain (loss) by less than one cent per share and decrease the ratio of net investment income to average net assets assuming reduction for fees paid indirectly from 1.08% to 1.05%. Per share ratios and supplemental data for periods prior to January 1, 2001, have not been restated to reflect this change in presentation. The accompanying notes are an integral part of these financial statements. 26 Pioneer Balanced Fund ================================================================================ FINANCIAL HIGHLIGHTS ================================================================================ Six Months Ended 6/30/04 Year Ended Year Ended Year Ended Year Ended Year Ended (unaudited) 12/31/03 12/31/02 12/31/01 (a) 12/31/00 12/31/99 CLASS C Net asset value, beginning of period $ 9.45 $ 8.27 $ 9.44 $ 9.94 $ 9.73 $ 9.75 -------- ------- --------- ------- ------- ------- Increase (decrease) from investment operations: Net investment income $ 0.01 $ 0.02 $ 0.01 $ 0.13 $ 0.15 $ 0.21 Net realized and unrealized gain (loss) on investments 0.09 1.20 (1.14) (0.54) 0.23 (0.02) -------- ------- --------- ------- ------- ------- Net increase (decrease) from investment operations $ 0.10 $ 1.22 $ (1.13) $ (0.41) $ 0.38 $ 0.19 Distributions to shareowners: Net investment income (0.01) (0.04) (0.04) (0.09) (0.17) (0.21) -------- ------- --------- ------- ------- ------- Net increase (decrease) in net asset value $ 0.09 $ 1.18 $ (1.17) $ (0.50) $ 0.21 $ (0.02) -------- ------- --------- ------- ------- ------- Net asset value, end of period $ 9.54 $ 9.45 $ 8.27 $ 9.44 $ 9.94 $ 9.73 ======== ======= ========= ======= ======= ======= Total return* 1.06% 14.82% (12.02)% (4.11)% 3.95% 2.02% Ratio of net expenses to average net assets+ 2.36%** 2.38% 2.53% 2.44% 2.61% 2.38% Ratio of net investment income to average net assets+ 0.28%** 0.24% 0.06% 0.75% 1.56% 2.09% Portfolio turnover rate 34%** 44% 180% 133% 17% 46% Net assets, end of period (in thousands) $ 9,761 $ 8,416 $ 7,806 $ 5,499 $ 3,426 $ 3,734 Ratios with reduction for fees paid indirectly: Net expenses 2.36%** 2.38% 2.53% 2.43% 2.59% 2.35% Net investment income 0.28%** 0.24% 0.06% 0.76% 1.58% 2.12% * Assumes initial investment at net asset value at the beginning of each period, reinvestment of all distributions, the complete redemption of the investment at net asset value at the end of each period, and no sales charges. Total return would be reduced if sales charges were taken into account. ** Annualized + Ratio with no reduction for fees paid indirectly. (a) At January 1, 2001, the Fund began accreting discounts and amortizing premiums on debt securities. The effect of this change for the year ended December 31, 2001 was to decrease net investment income by less than one cent per share, increase net realized and unrealized gain (loss) by less than one cent per share and decrease the ratio of net investment income to average net assets assuming reduction for fees paid indirectly from 0.86% to 0.76%. Per share ratios and supplemental data for periods prior to January 1, 2001, have not been restated to reflect this change in presentation. The accompanying notes are an integral part of these financial statements. 27 Pioneer Balanced Fund ================================================================================ NOTES TO FINANCIAL STATEMENTS 6/30/04 (unaudited) ================================================================================ 1. Organization and Significant Accounting Policies Pioneer Balanced Fund (the Fund) is a Delaware statutory trust registered under the Investment Company Act of 1940 as a diversified, open-end management investment company. The Fund's investment objective is to seek capital growth and current income. The Fund offers three classes of shares - Class A, Class B and Class C shares. Shares of Class A, Class B and Class C each represent an interest in the same portfolio of investments of the Fund and have equal rights to voting, redemptions, dividends and liquidation, except that each class of shares can bear different transfer agent and distribution fees and has exclusive voting rights with respect to the distribution plans that have been adopted by Class A, Class B and Class C shareowners, respectively. 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 and losses on investments during the reporting year. Actual results could differ from those estimates. The following is a summary of significant accounting policies consistently followed by the Fund, which are in conformity with those generally accepted in the investment company industry: A. Security Valuation Security transactions are recorded as of trade date. The net asset value is computed once daily, on each day the New York Stock Exchange is open, as of the close of regular trading on the Exchange. In computing the net asset value, debt securities are valued at prices supplied by independent pricing services, which consider such factors as Treasury spreads, yields, maturities and ratings. All discounts/premiums on debt securities are accreted/ amortized into interest income for financial reporting purposes. Valuations may be supplemented by dealers and other sources, as required. Equity securities are valued at 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 28 Pioneer Balanced Fund ================================================================================ ================================================================================ are not generally reported, are valued at the mean between the last bid and asked prices. Securities for which market quotations are not readily available are valued at their fair values as determined by, or under the direction of, the Board of Trustees. Trading in foreign securities is substantially completed each day at various times prior to the close of the New York Stock Exchange. The values of such securities used in computing the net asset value of the Fund's shares are determined as of such times. At June 30, 2004 there were no securities fair valued. 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 exercise of reasonable diligence. Interest income is recorded on the accrual basis. Temporary cash investments are valued at amortized cost. Gains and losses on sales of investments are calculated on the identified cost method for both financial reporting and federal income tax purposes. B. Futures Contracts The Fund may enter into futures transactions to hedge against changes in interest rates, securities prices, and currency rates or to seek to increase total return. Upon entering into a futures contract, the Fund is required to deposit with a broker an amount of cash or securities equal to the minimum "initial margin" requirements of the associated futures exchange. Subsequent payments on futures contracts ("variation margin") are paid or received by the Fund, depending on the daily fluctuation in the value of the contracts, and are recorded by the Fund as unrealized gains or losses. When the contract is closed, the Fund realizes a gain or loss equal to the difference between the opening and closing value of the contract. The use of futures contracts involves, to varying degrees, elements of market risk which may exceed the amounts recognized by the Fund. Changes in the value of the contracts may not directly correlate to the changes in the value of the underlying securities. These risks may decrease the effectiveness of the Fund's hedging and trading strategies and potentially result in a loss. As of June 30, 2004, the Fund had no open futures contracts. 29 Pioneer Balanced Fund ================================================================================ NOTES TO FINANCIAL STATEMENTS 6/30/04 (unaudited) (continued) ================================================================================ C. Federal Income Taxes It is the Fund's policy to comply with the requirements of the Internal Revenue Code applicable to regulated investment companies and to distribute all of its taxable income and net realized capital gains, if any, to its shareowners. Therefore, no federal income tax provision is required. The amount and characterization of distributions to shareowners for financial reporting purposes is determined in accordance with federal income tax rules. Therefore, the source of the Fund's distributions may be shown in the accompanying financial statements as either from or in excess of net investment income or net realized gain on investment transactions, or from paid-in capital, depending on the type of book/tax differences that may exist. The tax character of current year distributions paid will be determined at the end of the current fiscal year. The tax character of distributions paid during the year ended December 31, 2003 was as follows: - ----------------------------------------------------------------------------- 2003 - ----------------------------------------------------------------------------- Distributions paid from: Ordinary income $1,712,555 Long-term capital gain - ---------- Total $1,712,555 ========== - ----------------------------------------------------------------------------- The following shows the components of distributable earnings on a federal income tax basis at December 31, 2003. - ----------------------------------------------------------------------------- 2003 - ----------------------------------------------------------------------------- Undistributed ordinary income $ 4,131 Capital loss carryforward (13,510,963) Unrealized appreciation 14,759,150 ----------- Total $ 1,252,318 =========== - ----------------------------------------------------------------------------- The difference between book-basis and tax-basis unrealized appreciation is attributable to the tax deferral of losses on wash sales and the tax treatment of premuim and amortization. 30 Pioneer Balanced Fund ================================================================================ ================================================================================ D. Fund Shares The Fund records sales and repurchases of its shares as of trade date. Pioneer Funds Distributor, Inc. (PFD), the principal underwriter for the Fund and a wholly owned subsidiary of UniCredito Italiano S.p.A. (UniCredito Italiano), earned $12,298 in underwriting commissions on the sale of Fund shares during the six months ended June 30, 2004. E. Class Allocations 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). Shareowners of each class share all expenses and fees paid to the transfer agent, Pioneer Investment Management Shareholder Services, Inc. (PIMSS), for its services, which are allocated based on the number of accounts in each class and the ratable allocation of related out-of-pocket expenses (see Note 3). 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 the respective percentage of adjusted net assets at the beginning of the day. 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, at the same time, and in the same amount, except that Class A, Class B and Class C shares can bear different transfer agent and distribution fees. F. Repurchase Agreements With respect to repurchase agreements entered into by the Fund, the value of the underlying securities (collateral), including accrued interest received from counterparties, is required to be at least equal to or in excess of the value of the repurchase agreement at the time of purchase. The collateral for all repurchase agreements is held in safekeeping in the customer-only account of the Fund's custodian, or subcustodians. 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. 31 Pioneer Balanced Fund ================================================================================ NOTES TO FINANCIAL STATEMENTS 6/30/04 (unaudited) (continued) ================================================================================ 2. Management Agreement PIM manages the Fund's portfolio and is a wholly owned indirect subsidiary of UniCredito Italiano. Management fees are calculated daily at the annual rate of 0.65% of the Fund's average daily net assets up to $1 billion; 0.60% of the next $4 billion; and 0.55% of the excess over $5 billion. 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. At June 30, 2004, $81,488 was payable to PIM related to management fees, administrative fees and certain other services, and is included in due to affiliates. 3. Transfer Agent PIMSS, a wholly owned subsidiary of UniCredito Italiano, provides substantially all transfer agent and shareowner services to the Fund at negotiated rates. Included in due to affiliates is $51,300 in transfer agent fees payable to PIMSS at June 30, 2004. 4. Distribution Plans The Fund adopted a Plan of Distribution for each class of shares (Class A Plan, Class B Plan and Class C Plan) in accordance with Rule 12b-1 of the Investment Company Act of 1940. Pursuant to the Class A Plan, the Fund pays PFD a service fee of up to 0.25% of the average daily net assets attributable to Class A shares in reimbursement of its actual expenditures to finance activities primarily intended to result in the sale of Class A shares. Pursuant to the Class B Plan and the Class C Plan, the Fund pays PFD 1.00% of the average daily net assets attributable to each class of shares. The fee 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 is $50,005 in distribution fees payable to PFD at June 30, 2004. In addition, redemptions of each class of 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 one year of purchase. Class B shares that are redeemed within six years of purchase are subject to a CDSC at declining rates beginning at 4.00%, based on the lower of cost or 32 Pioneer Balanced Fund ================================================================================ ================================================================================ market value of shares being redeemed. Redemptions of Class C shares within one year of purchase are subject to a CDSC of 1.00%. Proceeds from the CDSCs are paid to PFD. For the six months ended June 30, 2004, CDSCs in the amount of $35,369 were paid to PFD. 5. Expense Offset Arrangements The Fund has entered into certain expense offset arrangements with PIMSS resulting in a reduction in the Fund's total expenses due to interest earned on cash held by PIMSS. For the six months ended June 30, 2004, the Fund's expenses were reduced by $1,629 under such arrangements. 6. Line of Credit Facility The Fund, along with certain others in the Pioneer Family of Funds (the Funds), collectively participate in a $50 million 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 $50 million or the limits set by its prospectus for borrowings. Interest on collective borrowings is payable at the Federal Funds Rate plus 1/2% on an annualized basis. The Funds pay an annual commitment fee for this facility. The commitment fee is allocated among such Funds based on their respective borrowing limits. For the six months ended June 30, 2004, the Fund had no borrowings under this agreement. 33 Pioneer Balanced Fund ================================================================================ TRUSTEES, OFFICERS AND SERVICE PROVIDERS ================================================================================ Officers Trustees John F. Cogan, Jr., Chairman John F. Cogan, Jr., President Mary K. Bush Osbert M. Hood, Executive Richard H. Egdahl, M.D. Vice President Margaret B.W. Graham Vincent Nave, Treasurer Osbert M. Hood Dorothy E. Bourassa, Secretary Marguerite A. Piret Stephen K. West John Winthrop Investment Adviser Pioneer Investment Management, Inc. Custodian Brown Brothers Harriman & Co. Principal Underwriter Pioneer Funds Distributor, Inc. Legal Counsel Wilmer Cutler Pickering Hale and Dorr 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). This information is also available at pioneerfunds.com and on the Securities and Exchange Commission's web site at http://www.sec.gov. 34 ================================================================================ THE PIONEER FAMILY OF MUTUAL FUNDS ================================================================================ Please consider a fund's investment objective, risks, charges and expenses carefully before investing. The prospectus contains this and other information about a fund and should be read carefully before you invest or send money. To obtain a prospectus and for other information on any Pioneer fund, contact your advisor, call 1-800-225-6292 or visit our web site at www.pioneerfunds.com. U.S. Equity International/Global Equity Pioneer Fund Pioneer Emerging Markets Fund Pioneer Balanced Fund Pioneer Europe Select Fund Pioneer Equity Income Fund Pioneer Europe Fund Pioneer Growth Shares Pioneer International Equity Fund Pioneer Mid Cap Growth Fund Pioneer International Value Fund Pioneer Mid Cap Value Fund Pioneer Oak Ridge Large Cap Fixed Income Growth Fund Pioneer America Income Trust Pioneer Oak Ridge Small Cap Pioneer Bond Fund Growth Fund Pioneer Global High Yield Fund Pioneer Papp America-Pacific Pioneer High Yield Fund Rim Fund Pioneer Short Term Income Fund Pioneer Papp Small and Mid Cap Pioneer Strategic Income Fund Growth Fund Pioneer Tax Free Income Fund Pioneer Papp Stock Fund Pioneer Papp Strategic Money Market Growth Fund Pioneer Cash Reserves Fund** Pioneer Real Estate Shares Pioneer Research Fund* Fund of Funds Pioneer Small Cap Value Fund Pioneer Ibbotson Asset Pioneer Small Company Fund Allocation Series Pioneer Value Fund * Name change effective December 11, 2003. Formerly known as Pioneer Core Equity Fund. ** An investment in the Fund is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. Although the Fund seeks to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in the Fund. 35 ================================================================================ ================================================================================ This page for your notes. 36 ================================================================================ 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 Telecommunications Device for the Deaf (TDD) 1-800-225-1997 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@pioneerinvest.com (for general questions about Pioneer only) Visit our web site: www.pioneerfunds.com Please consider the fund's investment objectives, risks, charges and expenses carefully before investing. The prospectus contains this and other information about the fund and should be read carefully before you invest or send money. To obtain a prospectus and for other information on any Pioneer fund, call 1-800-225-6292 or visit our web site www.pioneerfunds.com. [LOGO] PIONEER Investments(R) Pioneer Investment Management, Inc. 60 State Street Boston, MA 02109 www.pioneerfunds.com 16048-00-0804 (C) 2004 Pioneer Funds Distributor, Inc. Underwriter of Pioneer mutual funds Member SIPC 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; (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 recognizes 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 recognizes 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. N/A ITEMS 5-6. [RESERVED] 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. [RESERVED] ITEM 9. 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 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. ITEM 10. 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 Balanced Fund By (Signature and Title)* /s/ John F. Cogan, Jr. John F. Cogan, Jr, President Date August 25, 2004 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 August 25, 2004 By (Signature and Title)* /s/ Vincent Nave Vincent Nave, Treasurer Date August 25, 2004 * Print the name and title of each signing officer under his or her signature.