*The Fund was ranked by total return against 963 large-capitalization domestic core equity funds, as defined by Lipper.
**A "1" represents the top 20% of the category based on total return, and a "5" represents the bottom 20%.

Past performance is no guarantee of future results. The Fund's returns quoted above represent past performance after all expenses. Investment return, principal value, and yield will fluctuate so that an investor's shares, when redeemed, may be worth more or less than their original cost.

Current performance may be lower or higher than the performance data quoted. For performance information current to the most recent quarter and month-end, visit our website or call 1-800-582-6757. Each fund charges a 2.00% redemption fee on sales or exchanges of shares made less than 30 days after the settlement of purchase or acquisition through exchange, with certain exceptions. See the Fund's current prospectus for further information.

For the period reported in its current prospectus, during which net operating expenses were capped by the Fund's Manager, the Fund's gross annual operating expenses totaled 1.31% of net assets. Until November 30, 2010, the Fund's Manager has contractually agreed to waive certain fees and/or reimburse certain expenses, including management fees, so that expenses paid by the Fund will not exceed, on a per annum basis, 1.25% of its average daily net assets representing Investor shares.

Lipper Ranks Socially Responsible Fund in Top 10% of Large Cap Core Equity

New York, NY - January 12, 2010 - Domini Social Investments announced today that the Domini Social Equity Fund (Nasdaq: DSEFX) returned 35.56% for 2009, outperforming the S&P 500's return by 9.1%. The Fund ranked in the top 10% of large-capitalization domestic core equity funds tracked by Lipper for the year.

"If you are a responsible person you want to leave a better world for your children. It is pretty hard to see how that can happen without investing in it," said Amy Domini, Founder and CEO of Domini Social Investments. "The powerful and unique pairing of Domini's social and environmental expertise with Wellington Management Company's financial analysis has served our shareholders well. You can make money while caring about how that money is made."

Just over three years have passed since the Fund's transition to an actively managed strategy. Since November 30, 2006, Domini and Wellington Management Company have forged an exciting relationship in order to create and deliver an appropriate portfolio for responsible investors. Domini applies its proprietary social and environmental analysis to create an investable universe. Wellington Management Company then applies its quantitative modeling techniques to construct the ultimate portfolio.

Don Tunnell, director of quantitative research at Wellington Management and portfolio manager for the Domini Social Equity Fund, said, "Our disciplined and proprietary quantitative investment approach performed well with strong stock selection driving results for the year. Performance was also aided by Domini's social and environmental analysis, which yielded a fertile universe of approved stocks from which we were able to build a portfolio that produced attractive returns for shareholders."

"Over the past two years the world saw that what happens on Wall Street creates the world that we who live on Main Street must cope with," Ms. Domini said. "The debate over whether investment strategies matter is over."

"Investments must promote universal human dignity and ecological sustainability," Ms. Domini continued. "They should no longer be allowed to hurt people or the planet we all share. The Domini Social Equity Fund's investment approach recognizes that. We study the way each company is responding to the key sustainability challenges its industry faces. That is core to our research process."

The Domini Social Equity Fund was founded in 1991 by Amy Domini, author or coauthor of numerous books and articles on the subject of investing within a values framework. Her most recent book has been translated into Japanese, Korean, and Chinese, a tribute to her pioneering work to bring finance into the business of building a better world for our children. She was recently honored by Time magazine as one of 25 "Responsibility Pioneers" who are changing the world.

The performance information quoted above does not reflect the deduction of taxes that a shareholder would pay on distributions or the redemption of Fund shares. Total return is based on the Fund's net asset values and assumes all dividends and capital gains were reinvested. An investment in the Fund is not a bank deposit and is not insured. You may lose money. Certain fees payable by the Fund were waived during the period, and the Fund's average annual total returns would have been lower had these not been waived.

Although the Domini Social Equity Fund is no-load, certain fees and expenses apply to a continued investment and are described in the prospectus. The composition of the Fund's portfolio is subject to change. The Standard & Poor's 500 Index (S&P 500) is an unmanaged index of common stocks. Investors cannot invest directly in the S&P 500.

View or call 1-800-582-6757 to receive a copy of the Funds' current prospectus for more complete information on these and other topics. Please read the prospectus carefully before investing or sending money.

DSIL Investment Services LLC, Distributor. 1/10

Domini Funds, P.O. Box 9785, Providence, RI 02940