Pioneer Investments Declares Monthly Distributions for Closed-End Funds

Pioneer Investments today announced the declaration of dividends for six closed-end funds for November 2007. The closing market price, annualized distribution rate and NAV distribution rate are based on data as of November 2, 2007.

Ex Date: November 13, 2007
Record Date: November 15, 2007
Payable Date: November 30, 2007

Fund

Distribution

Market Price

Market Price Distribution Rate

NAV

NAV Distribution Rate

Pioneer High Income Trust (NYSE: PHT) $ 0.1375 16.10 10.25 % 15.68 10.52 %
Pioneer Municipal High Income Trust (NYSE: MHI) $ 0.0700 14.63 5.74 % 15.36 5.47 %
Pioneer Municipal High Income Advantage Trust (NYSE: MAV) $ 0.0750 14.99 6.00 % 15.23 5.91 %
Pioneer Floating Rate Trust (NYSE: PHD) $ 0.1450 17.57 9.90 % 18.78 9.27 %

Pioneer Tax Advantaged Balanced Trust (NYSE: PBF)(A)

$

0.1120

(A)

14.17 9.48 % 15.23 8.82 %
Pioneer Diversified High Income Trust (AMEX: HNW) $ 0.1980 20.90 11.37 % 23.42 10.15 %

(A)Tax-Equivalent Distribution Rate is computed based on the estimated effective tax rate of the fund as of 9/30/2007.

Tax-Equivalent Distribution Rate at Market Price

Tax-Equivalent Distribution Rate at NAV

Pioneer Municipal High Income Trust (NYSE: MHI) 8.83 % 8.42 %
Pioneer Municipal High Income Advantage Trust (NYSE: MAV) 9.23 % 9.09 %

Pioneer Tax Advantaged Balanced Trust (NYSE: PBF)(B)

13.23 % 12.31 %

(B) A significant portion of this distribution will be comprised of long-term capital gains. In addition, at this time PBF 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 www.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. Five funds trade on the New York Stock Exchange (NYSE): PHT, MHI, MAV, PHD and PBF. One fund trades on the American Stock Exchange (AMEX): HNW. Pioneer Investment Management, Inc. is each funds 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, 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.

©Pioneer Investment Management, Inc.

Member of the UniCredito Italiano Banking Group, Register of Banking Groups

Contacts:

Shareholder Inquiries
Please contact your financial advisor
or visit www.pioneerinvestments.com
or
Broker/Advisor Inquiries
800-622-9876
or
Media Inquiries
Geoff Smith, 617-422-4727
or
Tara Pescatore, 617-422-4727

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