For decades, the U.S. retirement system, particularly defined contribution plans like 401(k)s, has relied on a carefully constructed framework of investor protections and fiduciary standards designed to protect everyday workers from complexity, conflicts, and unseen risks. That regulatory framework still exists, but the marketplace it governs has changed dramatically. As DC plans evolve, participant assets are increasingly flowing into investment vehicles and structures that operate outside the most robust retail protections, raising new questions for plan sponsors, investment committees, and fiduciaries.
This series, Beyond the Perimeter, examines how retirement plans are effectively re‑entering a more lightly regulated investment landscape, not through repeal of existing rules, but through product design, and what this shift means for participant outcomes, fiduciary responsibility, and the future of retirement plan governance.
For decades, retirement plans have been built on a foundation of strong investor protections—rules designed to safeguard everyday workers from complexity, conflicts, and unseen risk. But quietly, the structure of defined contribution plans is changing. Increasingly, participant assets are moving into vehicles that look familiar on the surface, yet operate under very different regulatory regimes beneath it.
This post introduces the core idea behind our Beyond the Perimeter series: retirement plans are not being deregulated by repeal, but by product migration. As plan menus evolve, it’s worth asking whether participant protections are keeping pace with innovation—or slowly drifting out of view.
Chapter 1:
Beyond the Perimeter: How Retirement Plans Are Re‑Entering a Deregulated Marketplace
Over the last 80+ years, the U.S. has built a robust investor-protection architecture (’33/’34 Acts, Investment Company Act of 1940, ERISA, public company disclosure). Those regimes were intentionally designed to protect retail investors from fraud, abuse, and information asymmetry, but they come with real costs.
In retirement plans, especially defined contribution (DC) plans, assets are increasingly moving into structures that live outside the strictest “retail” regimes (CITs, private equity, insurance separate accounts, alternative vehicles). This is not classic “deregulation by repeal” but functional deregulation via product migration: the same unsophisticated investor, a different regulatory bucket.
Why This Matters for Plan Sponsors and Fiduciaries
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Plan participants are being exposed to complex, less transparent products through vehicles and wrappers originally designed for institutional investors.
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The fiduciary overlay under ERISA is stronger than it’s ever been—but it may not fully compensate for diminished product-level protections.
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There is a real risk of unintended downstream consequences: participant harm, litigation, and a policy backlash.
What This Blog Series Will Do
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Describe how the investor-protection architecture was built and what it was meant to solve.
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Show where and how the perimeter is shifting in the retirement marketplace.
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Provide a practical framework for fiduciaries to evaluate “non-40 Act” and private-market exposures in DC plans.
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Suggest policy and industry responses that balance innovation with durable investor protections.
This perimeter shift didn’t happen by accident. It reflects how financial regulation was originally constructed—and where its boundaries were intentionally drawn. In the next post, we’ll step back and examine how the investor‑protection architecture was designed in the first place, and what happens when retirement assets edge beyond it.
Want to read ahead? Download our full Beyond the Perimeter guide. (Free to download, no form to fill out)
Multnomah Group is a registered investment adviser registered with the Securities and Exchange Commission. Any information contained herein or on Multnomah Group’s website is provided for educational purposes only and does not intend to make an offer or solicitation for the sale or purchase of any specific securities, investments, or investment strategies. Investments involve risk and, unless otherwise stated, are not guaranteed. Multnomah Group does not provide legal or tax advice.