Fidelity has officially launched its tokenized money market fund (MMF), which primarily invests in short-dated U.S. Treasuries, drawing significant attention within the financial sector. While the announcement came last week, the launch of the fund dates back to late 2024 when Fidelity initiated the offering in what can be described as a stealth mode. By the end of August 2025, the fund had achieved remarkable growth, amassing over $300 million in assets under management.
The company’s foray into this innovative financial product gained traction earlier this year when it filed a registration statement with the SEC. During that time, it was revealed that Ondo Finance had made a substantial investment of $75 million in one of Fidelity’s Treasury funds. The nature of this investment—whether it was in a tokenized format or a traditional fund—was a point of curiosity among market watchers. Recent developments indicate that Ondo’s investment in Fidelity’s Ethereum-based FYOXX has surged to $202 million, now accounting for more than 25% of the Ondo OUSG Treasury fund.
Fidelity’s strategy aims to capture investments from stablecoin issuers and Web3 funds, reflecting a broader trend in the financial landscape. This approach has already proven effective for industry leader BlackRock, whose BUIDL MMF has garnered a market capitalization of $2.2 billion, largely through similar strategies. Notably, Ethena’s USDtb stablecoin holds $1.1 billion in BUIDL, while Ondo maintains a position of $250 million in the same fund. However, there are inherent risks, as investments from stablecoin investors can sometimes prove unpredictable.
This move by Fidelity represents a significant step in the evolution of financial products as they adapt to the increasing intersection of traditional finance and digital assets. As the landscape continues to change, market participants are keeping a close eye on these developments, particularly the potential impacts on liquidity and investment flows within the sector.
