Key Takeaways
- • The SEC issued a no-action letter on April 28, 2026, expanding co-investment relief to open-end funds (mutual funds and ETFs), allowing them to participate in negotiated transactions on equal footing with affiliated private funds and other regulated funds.
- • The expansion enables open-end funds serving millions of retail and retirement investors to access private markets investments—including private credit—while maintaining existing SEC safeguards such as liquidity risk management rules.
- • The relief represents a significant step toward the SEC's "responsible retailization" of private markets, which now represent a multi-trillion-dollar global capital segment where companies increasingly remain private longer.
- • The principles-based approach allows all regulated funds to participate in co-investment transactions consistently, removing barriers that previously prevented open-end funds from accessing follow-on investment opportunities on terms comparable to other fund structures.
- • The expansion aligns regulatory treatment across fund types while preserving core investor protections, addressing market realities where private markets access can enhance portfolio diversification for long-term investors including retirement savers.
Summary
The SEC's Division of Investment Management expanded co-investment relief to open-end funds through a no-action letter issued on April 28, 2026, marking a significant regulatory shift in how retail-focused funds access private markets. The Investment Company Institute supported the decision, characterizing it as consistent with the SEC's broader initiative to democratize access to alternative investments while maintaining investor safeguards.
The relief permits open-end funds—including mutual funds and ETFs—to participate in negotiated transactions where affiliated private funds are investing, on substantially the same basis. Previously, co-investment opportunities were largely restricted to other regulated funds and private fund structures, creating competitive disadvantages for open-end fund managers seeking to enhance returns and diversification for their clients. This expansion removes those barriers by applying principles-based relief that the SEC had already deemed appropriate for other regulated fund types.
The timing reflects market evolution: private markets now constitute a multi-trillion-dollar segment of global capital, with companies increasingly relying on private funding sources and remaining private longer. The ICI emphasized that for long-term investors—particularly retirement savers—access to this asset class through professionally managed open-end vehicles can meaningfully broaden opportunity sets and improve portfolio diversification. The relief maintains compliance with existing SEC regulations, including the liquidity risk management rule, ensuring that investor protections remain intact despite expanded investment scope.
The expansion represents measured regulatory evolution aligned with current market structure, addressing practical gaps where fund managers faced limitations in accessing follow-on investments and transactions offering potentially superior terms. By allowing open-end funds to participate on equal footing with other regulated fund types, the SEC has harmonized co-investment treatment across the regulated fund landscape while supporting capital formation in private markets and broadening retail access to alternative investments.
The relief permits open-end funds—including mutual funds and ETFs—to participate in negotiated transactions where affiliated private funds are investing, on substantially the same basis. Previously, co-investment opportunities were largely restricted to other regulated funds and private fund structures, creating competitive disadvantages for open-end fund managers seeking to enhance returns and diversification for their clients. This expansion removes those barriers by applying principles-based relief that the SEC had already deemed appropriate for other regulated fund types.
The timing reflects market evolution: private markets now constitute a multi-trillion-dollar segment of global capital, with companies increasingly relying on private funding sources and remaining private longer. The ICI emphasized that for long-term investors—particularly retirement savers—access to this asset class through professionally managed open-end vehicles can meaningfully broaden opportunity sets and improve portfolio diversification. The relief maintains compliance with existing SEC regulations, including the liquidity risk management rule, ensuring that investor protections remain intact despite expanded investment scope.
The expansion represents measured regulatory evolution aligned with current market structure, addressing practical gaps where fund managers faced limitations in accessing follow-on investments and transactions offering potentially superior terms. By allowing open-end funds to participate on equal footing with other regulated fund types, the SEC has harmonized co-investment treatment across the regulated fund landscape while supporting capital formation in private markets and broadening retail access to alternative investments.
Go deeper than the headline
Research every firm in this story, track the ones that matter and get the daily briefing — free for 7 days.