BlackRock’s Tokenized Money Market Fund Could Become a Reserve Custodian for Stablecoins Under GENIUS Act, Bolstering Bitcoin Custody

• BlackRock launches a GENIUS Act–compliant tokenized money market fund to serve stablecoin reserve needs.

• Fund holds only cash and short-term U.S. Treasuries to meet one-to-one reserve requirements and enable real-time reserve adjustments.

• Includes tokenization features for faster settlement and transparency; follows BlackRock’s growing digital asset footprint after IBIT’s institutional uptake (800,000 BTC milestone).

BlackRock tokenized money market fund delivers GENIUS Act–compliant reserves for stablecoins like Circle and Tether; read the implications for liquidity and custody.

BlackRock unveils a tokenized money market fund designed for stablecoin issuers like Circle and Tether as federal scrutiny reshapes the $313 billion market.

By COINOTAG — Published October 16, 2025 | Updated October 16, 2025

What is BlackRock’s tokenized money market fund?

BlackRock’s tokenized money market fund is a redesigned flagship money market vehicle that complies with the GENIUS Act by holding only cash and short-term U.S. Treasuries while offering tokenization capabilities to support stablecoin reserve custody. The design aims to provide issuers with real-time reserve adjustments, institutional-grade oversight, and faster settlements.

How does the GENIUS Act change stablecoin reserves and custody?

The GENIUS Act enforces one-to-one reserve backing, monthly third-party audits, and bans higher-risk collateral for fiat-pegged stablecoins. Under these rules, stablecoin issuers must maintain fully collateralized reserves and provide independent attestation, which increases demand for established fund managers with government-compliant operations. According to plain-text reporting from CNBC, this regulatory shift is reshaping a market that industry estimates peg near $313 billion, pushing issuers toward institutional custodians and tokenized reserve solutions.

Details of BlackRock’s product and market impact

BlackRock’s redesigned money market fund is constructed to hold only cash and short-term U.S. Treasuries, meeting the GENIUS Act’s requirement for one-to-one reserve backing. The fund integrates tokenization features that allow instantaneous or near-instantaneous settlement of reserve movements, increasing transparency through on-chain ledger mechanics while preserving traditional custody controls and compliance frameworks.

The initiative follows BlackRock’s expansion into digital assets, notably after the iShares Bitcoin Trust (IBIT) surpassed 800,000 BTC in holdings, underscoring the firm’s operational scale in custody and institutional demand for regulated digital reserve instruments. This dual footprint—Bitcoin ETFs and a GENIUS Act–compliant stablecoin reserve fund—signals an institutional strategy aimed at bridging digital reserves and transactional liquidity.

Industry commentators on social platforms noted the significance of the move. Crypto influencer DustyBC posted that “Wall Street is locking in on crypto infrastructure,” reflecting a broader market sentiment that institutional players are formalizing the plumbing for tokenized finance. Another market participant observed that the development could steady confidence in stablecoins and unlock fresh liquidity for broader crypto markets.

Operational and compliance features

Key operational features include monthly independent audits, segregated reserve accounting, and limits on eligible collateral to cash and short-dated U.S. Treasuries. These measures align with GENIUS Act provisions and respond to issuer demand for predictability and regulatory compliance. BlackRock’s model emphasizes institutional-grade reporting, custody arrangements, and the scalability to serve large issuers such as Circle and Tether without using higher-risk securities.

Frequently Asked Questions

Will BlackRock’s fund be acceptable to major stablecoin issuers?

Major issuers seeking GENIUS Act compliance are likely to consider institutional managers that can provide fully-backed reserves, audited controls, and settlement capabilities. BlackRock’s approach—cash and short-term Treasuries plus tokenization—meets the one-to-one reserve standard and provides operational transparency preferred by regulated issuers.

How does tokenization improve reserve management?

Tokenization allows more frequent or near-instantaneous recording of reserve movements on permissive ledgers, enabling issuers to reconcile and adjust reserves in close to real time while preserving audited custody and compliance. This reduces operational friction and supports faster transaction settlement for on-chain stablecoin activity.

Market context and authoritative references

The GENIUS Act, effective July 2025, set the regulatory baseline for fiat-pegged stablecoins in the United States and requires monthly third-party audits and strict collateral rules. This regulatory backdrop is reported by mainstream financial outlets and referenced in industry briefings. BlackRock’s product announcement follows these regulatory changes and is positioned to address elevated compliance demands and issuer concerns about operational resilience.

Relevant public data points referenced in this report (plain text): CNBC coverage of the fund’s compliance with one-to-one reserve rules; industry estimates placing the stablecoin ecosystem valuation near $313 billion; BlackRock’s IBIT milestone of 800,000 BTC in custody as reported in market briefings and filings.

Key Takeaways

• Regulatory alignment: The fund is designed to comply with GENIUS Act rules—one-to-one reserves, monthly audits, and restricted collateral.
• Operational innovation: Built-in tokenization supports faster settlement and improved transparency while retaining institutional custody controls.
• Market implications: BlackRock’s entry increases options for major stablecoin issuers, potentially stabilizing reserves and unlocking institutional liquidity for broader crypto markets.

Conclusion

BlackRock’s tokenized money market fund represents a significant institutional response to the GENIUS Act’s compliance requirements and the stablecoin market’s demand for audited, fully backed reserves. By combining cash and short-term U.S. Treasuries with tokenization capabilities, the fund aims to provide regulated issuers like Circle and Tether with scalable, transparent reserve custody. For market participants, this development signals continued convergence between traditional asset managers and blockchain-native infrastructure—monitor regulatory filings and official fund documentation for further details.

Also read: BlackRock And Brevan Howard Tokenized Funds Expands to Sei Network

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