MHI Pioneer Municipal High Income Fund Inc

Pioneer Investments today announced the declaration of dividends for five closed-end funds for October 2009. The closing market price, annualized market price distribution rate, NAV, and NAV distribution rate are based on data as of October 2, 2009.

Ex Date:                 October 13, 2009 Record Date: October 15, 2009 Payable Date: October 30, 2009 Fund   Distribution  

MarketPrice

 

MarketPriceDistributionRate

  NAV  

NAVDistributionRate

 

Taxable

Pioneer High Income Trust (NYSE:PHT) $0.1375 $13.19 12.51% $11.77 14.02% Pioneer Floating Rate Trust (NYSE:PHD) $0.0850 $10.77 9.47% $11.30 9.03% Pioneer Diversified High Income Trust (NYSE Amex:HNW) (a) $0.1600 $17.41 11.03% $18.11 10.60%  

Tax-Exempt

Pioneer Municipal High Income Trust (NYSE: MHI) $0.0800 $13.53 7.10% $13.86 6.93% Pioneer Municipal High Income Advantage Trust (NYSE: MAV) $0.0800 $12.35 7.77% $12.24 7.84%  

Taxable-EquivalentDistributionRate atMarket Price

Taxable-EquivalentDistributionRate atNAV

Pioneer Municipal High Income Trust (NYSE: MHI) 10.92% 10.66% Pioneer Municipal High Income Advantage Trust (NYSE: MAV) 11.95% 12.06%   (a) At this time HNW believes that a portion of this distribution may include a return of capital in addition to net investment income and long-term capital gains. A return of capital is not a distribution of income or capital gains from the fund, does not necessarily reflect the fund's investment performance, and should not be considered "yield" or "income." Further information on the composition of the distribution will be made available on the payment date and will be available at pioneerinvestments.com. The final determination of tax characteristics of the fund’s distributions will occur after the end of the year, at which time it will be reported to shareholders.

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.

© 2009 Pioneer Investment Management, Inc.

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