497 1 multifund120716pro497.txt PROSPECTUS SUPPLEMENT Filed Pursuant to Rule 497(e) of the Securities Act of 1933 December 7, 2016 Pioneer Funds Supplement to the Prospectus and Summary Prospectus, as in effect and as may be amended from time to time, for: Fund Date of Prospectus ---- ------------------ Pioneer AMT-Free Municipal Fund May 1, 2016 Pioneer Bond Fund November 1, 2016 Pioneer Classic Balanced Fund December 1, 2016 Pioneer Core Equity Fund May 1, 2016 Pioneer Disciplined Growth Fund December 31, 2015 Pioneer Disciplined Value Fund December 31, 2015 Pioneer Dynamic Credit Fund August 1, 2016 Pioneer Emerging Markets Fund April 1, 2016 Pioneer Equity Income Fund March 1, 2016 Pioneer Flexible Opportunities Fund March 1, 2016 Pioneer Floating Rate Fund March 1, 2016 Pioneer Fund May 1, 2016 Pioneer Fundamental Growth Fund August 1, 2016 Pioneer Global Equity Fund December 31, 2015 Pioneer Global High Yield Fund March 1, 2016 Pioneer Global Multisector Income Fund March 1, 2016 Pioneer High Income Municipal Fund December 31, 2015 Pioneer High Yield Fund March 1, 2016 Pioneer ILS Interval Fund February 10, 2016 Pioneer International Equity Fund April 1, 2016 Pioneer Mid Cap Value Fund March 1, 2016 Pioneer Multi-Asset Income Fund December 1, 2016 Pioneer Multi-Asset Ultrashort Income Fund August 1, 2016 Pioneer Real Estate Shares May 1, 2016 Pioneer Select Mid Cap Growth Fund April 1, 2016 Pioneer Short Term Income Fund December 31, 2015 Pioneer Solutions - Balanced Fund December 1, 2016 Pioneer Solutions - Conservative Fund December 1, 2016 Pioneer Solutions - Growth Fund December 1, 2016 Pioneer Strategic Income Fund February 1, 2016 Pioneer U.S. Government Money Market Fund May 1, 2016 Pioneer Investment Management, Inc. (the "Adviser"), each fund's investment adviser, is currently an indirect, wholly-owned subsidiary of UniCredit S.p.A. ("UniCredit"). On December 5, 2016, UniCredit announced that it has entered into exclusive negotiations for the possible sale of its Pioneer Investments business, which includes the Adviser, to Amundi. Amundi is headquartered in Paris, France, and, as of September 30, 2016, had more than $1.1 trillion in assets under management worldwide. Although the outcome of the negotiations cannot be predicted, a sale of the Adviser would cause each fund's current investment advisory agreement with the Adviser to terminate. In that event, the fund's Board of Trustees would be asked to approve a new investment advisory agreement for the fund. If approved by the Board, the fund's new investment advisory agreement would be submitted to the shareholders of the fund for their approval. 29929-00-1216 (C) 2016 Pioneer Funds Distributor, Inc. Underwriter of Pioneer mutual funds Member SIPC