Domini Impact Equity Fund^SM

* Average annual total returns.
Returns for periods less than one year are not annualized.

NOTE: The Fund’s current investment strategy commenced on December 1, 2018 with SSGA Funds Management, Inc as its Subadviser. Performance information for periods prior to December 1, 2018 reflects the investment strategies employed during those periods.

1. The Fund’s Adviser has contractually agreed to waive certain fees and/or reimburse certain ordinary operating expenses (excluding brokerage fees and commissions, interest, taxes, and other extraordinary expenses) in order to limit Investor share expenses to 1.09% through November 30, 2025. There can be no assurance that the Adviser will extend the expense limitations beyond such time. While in effect, the arrangement may be terminated for a class only by agreement of the Adviser and the Fund’s Board of Trustees.

Gross/Net Annual Expense Ratio: 0.98%/0.98% Per current prospectus.

Past performance is no guarantee of future results. The Fund’s returns quoted above represent past performance after all expenses. The returns reflect any applicable expense waivers in effect during the periods shown. Without such waivers, Fund performance would be lower. Investment return, principal value, and yield will fluctuate. Your shares, when redeemed, may be worth more or less than their original cost. See Investor Shares Performance above for more performance information, including returns current to the most recent month-end, which may be lower or higher than the performance data quoted. See the prospectus for further information.

An investment in the Domini Impact Equity Fund is not a bank deposit and is not insured. The Fund is subject to certain risks, including loss of principal, impact investing, portfolio management, information, market, mid- to large cap companies’, and small-cap companies’ risks. See the prospectus for more information on risk.

The Adviser’s evaluation of environmental and social factors in its investment selections and the timing of the Subadviser’s implementation of the Adviser’s investment selections will affect a Fund’s exposure to certain issuers, industries, sectors, regions, and countries and may impact the relative financial performance of a Fund depending on whether such investments are in or out of favor. The value of your investment may decrease if the Adviser’s or Subadviser’s judgement about Fund investments does not produce the desired results. A Fund may forego some investment opportunities including investments in certain market sectors that are available to funds that do not consider environmental and social factors in their investment selections. There is a risk that information used by the Adviser to evaluate environmental and social factors, may not be readily available or complete, which could negatively impact the Adviser’s ability to evaluate such factors and Fund performance.

The performance above does not reflect the deduction of fees and taxes that a shareholder would pay on Fund 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.

Although the Domini Impact Equity Fund Investor shares are no-load, certain fees and expenses apply to a continued investment and are described in the prospectus.

The Standard & Poor’s 500 Index (S&P 500) is a market-capitalization weighted index representing the performance of large-capitalization companies in the United States. Investors cannot invest directly in the S&P 500.

Fund Distributions

Dividends
Distributed quarterly

Capital Gains
Distributed annually