NOTES TO FINANCIAL STATEMENTS
January 31, 1999 (unaudited)
1. ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES. Domini Social Index Port- folio
(the "Index Portfolio") is registered under the Investment Company Act of 1940 (the "Act") as a no-load,
diversified, open-end management investment company which was organized as a trust under the laws of the
State of New York on June 7, 1989. The Index Portfolio intends to correlate its investment port- folio as closely
as is practicable with the Domini 400 Social Index (the "In- dex"), which is a common stock index developed and
maintained by Kinder, Lydenberg, Domini & Co., Inc. ("KLD"). The Declaration of Trust permits the Trustees to
issue an unlimited number of beneficial interests in the Index Portfolio. The Index Portfolio commenced
operations upon effectiveness on Au- gust 10, 1990 and began investment operations on June 3, 1991.
The preparation of financial statements in conformity with generally ac- cepted accounting principles requires
management to make estimates and assump- tions that affect the reported amounts of assets and liabilities and
disclo- sure of contingent assets and liabilities at the date of the financial state- ments and the reported amounts of
revenues and expenses during the reporting period. Actual results could differ from those estimates. The following
is a summary of the Index Portfolio's significant accounting policies.
(A) Valuation of Investments: The Index Portfolio values securities at the last reported sale price, or at the last
reported bid price if no sales are reported.
(B) Dividend Income: Dividend income is reported on the ex-dividend date.
(C) Federal Taxes: The Index Portfolio will be treated as a partnership for U.S. federal income tax purposes and
is therefore not subject to U.S. federal income tax. As such, each investor in the Index Portfolio will be taxed on
its share of the Index Portfolio's ordinary income and capital gains. It is in- tended that the Portfolio will be
managed in such a way