State Street Investment Management launched the State Street Stablecoin Reserves Money Market Fund on June 16, 2026, with roughly $121 million in initial capital and an opening yield of 3.51%. The fund, trading under SSCXX, is designed as a regulated cash-management vehicle for stablecoin issuers.
The product is structured as a Rule 2a-7 government money market fund and is built to meet reserve requirements established by the GENIUS Act. Its launch signals rising institutional competition for the assets backing dollar-pegged stablecoins.
Stablecoin Reserves Move Into Money Market Funds
SSCXX will invest primarily in U.S. Treasuries and overnight repurchase agreements, aligning with reserve standards focused on liquidity, quality and maturity. State Street is positioning the fund as a transparent venue for issuers to hold high-quality reserve assets.
Initial investors include State Street Bank and Trust Company and Anchorage Digital. Nathan McCauley, co-founder and CEO of Anchorage Digital, said stablecoins are becoming core financial infrastructure, making reserve quality and management critically important.
State Street framed the launch as a combination of its cash-management capabilities and Anchorage’s regulated stablecoin infrastructure. That pairing reflects a broader convergence between traditional asset management and digital payment rails.
The fund arrives after the GENIUS Act became law in July 2025 and triggered a wave of reserve-focused product development. State Street became the fourth major asset manager to launch a dedicated stablecoin reserve vehicle, joining BlackRock, Morgan Stanley and Goldman Sachs Asset Management in competing for stablecoin reserve flows.
Asset Managers Chase Stablecoin Reserve Growth
Other large financial institutions are also positioning around the same market. JPMorgan filed for a tokenized money market fund known as JLTXX, Morgan Stanley introduced a Stablecoin Reserves Portfolio, and Coinbase disclosed an investment in the ProShares GENIUS Money Market ETF, showing how quickly reserve infrastructure has become a strategic product category.
The market backdrop helps explain the rush. Stablecoin supply rose to about $315 billion from roughly $260 billion around the time the GENIUS Act was signed, according to DeFiLlama data cited in the launch materials, creating a larger pool of reserves that must be managed under stricter rules.
State Street emphasized principal preservation and liquidity as central design goals. By aligning the fund with Rule 2a-7 and GENIUS Act criteria, the company aims to reduce liquidity mismatch risk for issuers while offering a regulated reserve option built around Treasuries and repo markets.
The opportunity could expand significantly if stablecoin issuance keeps growing. State Street Investment Management, which oversees more than $5 trillion in assets, cited Citi projections that global stablecoin issuance could reach between $1.9 trillion and $4 trillion by 2030, underscoring why major asset managers are moving early.
Tether’s March 2026 reserves report was also referenced in the materials to illustrate the existing scale of Treasury bills and cash equivalents already supporting stablecoin markets. That comparison highlights the depth of reserve assets now tied to digital-dollar liquidity.
For treasury managers and market participants, the immediate impact is increased demand for short-dated Treasury paper and repo capacity. As more reserve vehicles enter the market, attention will turn to institutional allocations, new product filings and the supply-demand balance in cash markets.
The launch of SSCXX does not change stablecoin reserve management overnight, but it formalizes a clearer institutional channel for issuers operating under the GENIUS Act. State Street’s move shows stablecoin reserves are becoming a mainstream asset-management battleground.
