Homestead Stock Index Fund (HSTIX) is an open-end mutual fund that seeks to match, as closely as possible before expenses, the performance of the S&P 500 Stock Index by investing all of its investable assets in the S&P 500 Index Master Portfolio, a separate series of the unaffiliated Master Investment Portfolio trust fully invested in securities comprising the benchmark index; the fund offers no-load share classes with a gross expense ratio of 0.48%, daily pricing, and a minimum initial investment of $500. The fund belongs to the large blend category, targeting institutional and retail investors seeking broad exposure to large-capitalization U.S. equities across sectors including information technology, financials, health care, consumer discretionary, and communication services, with top holdings such as NVIDIA Corp., Microsoft Corp., Apple Inc., Alphabet Inc., and Amazon.com Inc. as of September 30, 2025.
Operated by investment adviser Homestead Advisers Corp., headquartered in Arlington, Virginia, the fund was launched on October 28, 1999, and manages approximately $294 million in net assets primarily for U.S.-based investors through broker-dealers, retirement plans, and direct accounts.
In a recent major development, on November 20, 2025, the Master Portfolio updated its registration statement to revise its investment policy, explicitly stating its intent to maintain diversification in proportions mirroring the S&P 500 Index while permitting it to become non-diversified under the Investment Company Act of 1940 solely due to shifts in index constituent market capitalizations or weightings, without requiring shareholder approval; this change introduced a new non-diversification risk disclosure, potentially heightening volatility tied to fewer issuers. The fund continues full investment in the BlackRock-managed S&P 500 Master Portfolio, distributed capital gains and income in 2025 including long-term gains of $0.0453 per share in June, and maintains low portfolio turnover reflective of its passive indexing approach.