Revised Ex Date for Pioneer Investments’ Closed-End Fund Distributions

Pioneer Investments today announced revised ex-dividend dates for the November 2011 distributions of its five closed-end funds, as previously announced on November 4, 2011. Each Fund’s previously announced ex-dividend date has been modified due to settlement requirements coinciding with the Veterans Day holiday. The revised ex-dividend date for each Fund is November 10, not November 11. There have been no changes to any of the previously announced record or payable dates for the Funds’ November 2011 distributions.

The revised ex date applies to the following funds.

Pioneer High Income Trust (NYSE: PHT)
Pioneer Floating Rate Trust (NYSE: PHD)
Pioneer Diversified High Income Trust (NYSE Amex: HNW)
Pioneer Municipal High Income Trust (NYSE: MHI)
Pioneer Municipal High Income Advantage Trust (NYSE: MAV)

The funds are closed-end investment companies. Four of these funds trade on the New York Stock Exchange (NYSE) under the following symbols: MHI, MAV, PHT, and PHD. HNW trades on the NYSE Amex. Pioneer Investment Management, Inc. is each fund’s investment adviser.

Keep in mind, dividends are not guaranteed. Closed-end funds, unlike open-end funds, are not continuously offered. There is a one-time public offering and once issued, common shares of closed-end funds are bought and sold in the open market through a stock exchange and frequently trade at prices lower than their net asset value. Net Asset Value (NAV) is total assets less total liabilities divided by the number of common shares outstanding. For performance data on Pioneer's closed-end funds, please call 800-225-6292 or visit our closed-end pricing page.

© 2011 Pioneer Investment Management, Inc.
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