GAMCO Global Growth Fund Receives
2005 Lipper Performance Achievement Certificate Award

Rye, NY
April 5, 2006
  Contact:    Bruce Alpert
       Chief Operating Officer
       (914) 921-5105

For further information please visit

The GAMCO Global Growth Fund (GICPX - class AAA shares) has received the 2005 Lipper Performance Achievement Certificate award for earning the #1 Rank (10-year average annual total return: 10.79%) out of 13 peer group funds in the Lipper Equity Fund Performance Analysis Service for the ten year period ending December 31, 2005. The GAMCO Global Growth Fund's Investment Objective/Lipper Classification is Global Multi-Cap Core. Lipper is a global mutual fund research firm and is a Reuters company.

Lipper Performance Achievement Certificates are awards to fund portfolios that ranked first in their Investment Objective/Lipper Classification over various time periods.

Certificates are awarded once a year, as of December 31st, for performance over one, five, ten, and fifteen year time periods for open-end equity funds and are based on cumulative total return. For the purpose of comparison, a fund is categorized at the end of the time period and is compared to those peers for the relevant time period. Lipper Fund Awards are not intended to predict future results, and Lipper does not guarantee the accuracy of this information.

The GAMCO Global Growth's (AAA) average annual returns for the one, three, five and ten year periods ending December 31, 2005 were 13.72%, 20.73%, 0.08% and 10.79%, respectively. According to Lipper, GAMCO Global Growth was ranked 9 out of 69 funds for one year, 11 out of 55 for 3 years, 37 out of 42 for 5 years, and #1 out of 13 for 10 years, all periods ending December 31, 2005. For the one, three, five and ten year periods ending March 31, 2006, the GAMCO Global Growth's (AAA) average annual returns were 21.23%, 24.57%, 6.63% and 10.63%, respectively.

The performance data quoted represents past performance. Past performance is no guarantee of future results. Current performance may be lower or higher than the performance data quoted. Total returns and average annual returns reflect changes in share price and reinvestment of dividends and are net of expenses. Investment returns and the principal value of an investment will fluctuate. When shares are redeemed they may be worth more or less than their original cost. The most recent month end performance can be obtained by calling 1-800-GABELLI (422-3554) Investors should consider the investment objectives, risks, sales charges and expense of the fund carefully before investing. The prospectus contains more complete information about this and other matters. The prospectus should be read carefully before investing. Other share classes are available and may have different performance characteristics. You can obtain a prospectus by calling the Distributor, Gabelli & Company, Inc. at 1-800-GABELLI (1-800-422-3554), contacting your financial representative or by visiting