NEW YORK, April 25 /PRNewswire/ -- -- Only micro-cap closed-end fund -- Average weekly trading volume of approximately 206,000 shares -- Fund's adviser has more than 30 years of small- and micro-cap investment experience Closing Prices - March 31, 2006 NAV $ 15.15 MKT $ 15.25 Total Return Performance Periods ended March 31, 2006 NAV MKT 1 Month* 3.93% 3.98% Year to Date* 15.23 6.98 One-Year 25.21 27.24 Three-Year Average Annual 34.36 39.34 5-Year Average Annual 19.34 23.38 10-Average Annual 15.26 17.36 *Not annualized Portfolio Diagnostics Median Market Cap: $310 million Wtd. Average P/E Ratio: 20.1x* Wtd. Average P/B Ratio: 2.1x Wtd. Average Yield: 0.7% Net Assets Attributable to Common Stock: $283 million Net Leverage: 1% *Excludes 18% of portfolio holdings with zero or negative earnings as of 3/31/06. Net leverage is the percentage, in excess of 100%, of the total value of equity type investments, divided by net assets applicable to common stock. Portfolio Composition Top 10 Positions % of Net Assets 1. ASA Bermuda 1.4% 2. Sapient Corporation 1.1 3. Universal Truckload Services 1.0 4. First Acceptance 1.0 5. Dril-Quip 1.0 6 PAREXEL International 1.0 7. Transaction Systems Architects Cl. A 1.0 8. TriZetto Group (The) 1.0 9. Pason Systems 0.9 10. Abigail Adams National Bancorp 0.9 Top Five Industries % of Net Assets 1. Technology 23% 2. Industrial Products 16 3. Health 15 4. Industrial Services 13 5. Natural Resources 10 Recent Developments Royce Micro-Cap Trust, Inc. (NYSE-RMT) paid a quarterly distribution of $0.31 per share on its Common Stock, on March 23, 2006 to stockholders of record at the close of business on March 6, 2006 (ex-dividend on March 2, 2006). The price of shares issued for reinvestment on was $14.46. Royce Micro-Cap Trust, Inc. paid a cash dividend of $0.375 per share on its Cumulative Preferred Stock, based on an annual rate of 6.00% of the initial liquidation preference of $25.00 per share, on March 23, 2006 to stockholders of record at the close of business on March 6, 2006 (ex-dividend March 2, 2006). Royce Micro-Cap Trust, Inc. is a closed-end diversified investment company whose shares of Common Stock (RMT) and 6.00% Cumulative Preferred Stock (RMTpra.) are listed and traded on the New York Stock Exchange. The Fund's investment goal is long-term capital growth, which it seeks by investing primarily in equity securities of companies that, at the time of investment, have market capitalization of $500 million or less. Daily net asset values (NAVs) for Royce Micro-Cap Trust, Inc. are now available on our website and online through most ticker symbol lookup services and on broker terminals under the symbol XOTCX. For more information, please call The Royce Funds at (800) 221-4268 or visit our website at http://www.roycefunds.com/ DATASOURCE: Royce Micro-Cap Trust, Inc. CONTACT: John D. Diederich, +1-212-355-7311, for Royce Micro-Cap Trust, Inc. Web site: http://www.roycefunds.com/

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