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SEC’s Crypto Custody Shake-Up: Why the Next Bitcoin Boom Could Start on Wall Street

Reported by Bitcoinfoundation
Aug 27, 2026· 3 min read
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Key Takeaways
  • • The SEC has submitted proposed crypto custody rule reforms to the White House for review in August 2026, marking a significant shift toward regulatory clarity for digital asset holdings by institutional investors and investment advisers.
  • • The new proposal represents a departure from the Gensler-era approach, which imposed tighter restrictions and limited crypto custody pathways, suggesting a more accommodative regulatory stance under the current administration.
  • • Simplified custody rules could eliminate a primary barrier to institutional Bitcoin adoption by removing uncertainty around how investment advisers and funds can legally hold crypto assets under existing securities laws.
  • • Major Wall Street institutions, including Citigroup, are preparing to launch digital asset custody services for institutional clients, indicating market readiness to capitalize on regulatory clarification.
  • • The reforms address specific SEC frameworks including SAB 121 (accounting treatment) and Rule 15c3-3 (broker-dealer custody requirements), suggesting a comprehensive recalibration of how digital assets fit within traditional securities infrastructure.
Summary
The SEC has initiated a significant regulatory review of cryptocurrency custody rules, submitting a new proposal to the White House in August 2026 that could fundamentally reshape institutional access to Bitcoin and other digital assets. This marks a departure from the prior administration's restrictive approach, which imposed tighter constraints and limited pathways for crypto custody arrangements. The new framework seeks to resolve longstanding ambiguity regarding how investment advisers, hedge funds, and other institutional vehicles can legally hold digital assets under existing securities laws—a critical gap that has deterred mainstream institutional participation.

At the core of the regulatory revision is the recognition that blockchain-based settlement and digital asset infrastructure require rules tailored to their operational mechanics, rather than forced compliance within traditional custodian frameworks. The proposal specifically targets accounting treatment under SAB 121 and broker-dealer custody requirements under Rule 15c3-3, two regulatory provisions that have created unnecessary friction for institutional adoption. By addressing these technical barriers, the SEC aims to lower hurdles for investment committees evaluating Bitcoin and other approved digital assets as portfolio holdings.

The practical implications are already evident on Wall Street. Citigroup has announced plans to introduce institutional-grade digital asset custody services later in 2026, beginning with Bitcoin, signaling that financial institutions are positioned to move rapidly once regulatory clarity materializes. This readiness reflects both demand from institutional clients and recognition that custody infrastructure represents a gateway to the institutional asset class migration that Bitcoin ETFs have already begun to unlock.

Market participants view the White House review as a critical inflection point. Unlike previous failed custody initiatives, this proposal enters the regulatory process during a period of demonstrated institutional appetite and proven market infrastructure, suggesting a higher probability of implementation. If approved, simplified custody rules could accelerate the transfer of significant capital from retail and speculative Bitcoin markets toward regulated, institutional-grade holdings on Wall Street—creating the infrastructure foundation for a potential expansion of institutional Bitcoin adoption.

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Sources

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Bitcoinfoundation SEC’s Crypto Custody Shake-Up: Why the Next Bitcoin Boom Could Start on Wall Street