Fidelity Investments has officially launched the Fidelity Reserves Digital Fund (FYMXX), a government money market fund specifically designed for stablecoin issuers and institutional investors under the new GENIUS Act requirements. According to reports from Fidelity, the fund became available on June 15, 2026, representing the asset manager's strategic entry into managing the reserves that back stablecoins. This launch comes just days after State Street unveiled a similar product, the State Street Stablecoin Reserves Money Market Fund, highlighting how traditional financial firms are increasingly competing for this rapidly expanding market.
The stablecoin market has grown into a roughly $315 billion market as of the latest data from DefiLlama, with Tether's USDT leading at $186 billion market cap and making it the third-largest digital asset overall. Circle's USDC stablecoin follows as the second-largest with a near-$75 billion market cap, ranking as the fifth-largest digital asset by market cap according to CoinGecko data. As reported by State Street, industry forecasts project the sector could expand to between $1.9 trillion and $4 trillion by 2030 as institutional adoption increases.
The fund is structured as a Rule 2a-7 government money market fund – the same SEC-regulated vehicle type that has long underpinned institutional cash management, but purpose-built for stablecoin issuers operating as Permitted Payment Stablecoin Issuers (PPSIs) under the GENIUS Act. According to Fidelity, the fund invests exclusively in U.S. Treasury bills, notes and bonds with maturities of up to 93 days, cash, and overnight repurchase agreements backed by Treasuries that comply with the law. The fund targets a $1.00 net asset value (NAV) and carries a management fee of 0.25%, requiring a $1 million minimum investment from institutional investors, though Fidelity reserves the right to waive that floor. A Federal Register notice confirms that the fund may hold USDC as its sole stablecoin exposure, underscoring USDC's strengthened institutional standing in the post-GENIUS regulatory era.
The new fund adds to Fidelity's growing stablecoin business, which expanded earlier this year with the introduction of the Fidelity Digital Dollar (FIDD). At the time, Fidelity Digital Assets said the U.S. dollar-backed stablecoin would serve both retail and institutional investors and would be supported by Fidelity's reserve management infrastructure. Fidelity's entry marks its participation in a competitive arena among top asset managers, with BlackRock, Goldman Sachs, and BNY Mellon also initiating similar funds in 2024-2025, while BlackRock's Circle Reserve Fund predates the GENIUS Act. The Crypto Council for Innovation views these funds as vital to linking traditional finance with compliant, dollar-backed stablecoins, suggesting that competition will enhance transparency and risk management.
The passage of the GENIUS Act has formalized existing practices, allowing stablecoins like USDC and others to use SEC-registered 2a-7 funds as backing for stablecoins, establishing a statutory standard. With a 0.25% management fee in a market expected to reach trillions, asset managers stand to gain significantly from this regulatory framework. The next step involves tokenization, where blockchain-native share classes of money market funds may emerge once SEC guidance is provided, enabling compliant on-chain use. For stablecoin holders, this means their reserves are managed by the same firms as their 401(k) funds, resulting in greater regulation, transparency, and integration with the traditional financial system than ever before in crypto's history. However, critics warn of potential centralization risks and regulatory challenges that could arise from concentrating stablecoin reserves among a few large US managers.
