BlackRock's BUIDL Adds $52.1M in Market Cap in 24 Hours

BlackRock's tokenized Treasury fund BUIDL expanded its market capitalization by $52.1 million over the past 24 hours, underscoring its lead in a segment that was barely on the map two years ago. Formally named the BlackRock USD Institutional Digital Liquidity Fund, BUIDL has emerged as the reference product for tokenized U.S. Treasuries. The broader tokenized Treasury market is estimated at roughly $15–$16 billion in total onchain value. Against that backdrop, BUIDL typically holds a market cap of about $2.5–$2.7 billion. BUIDL launched in March 2024 and scaled quickly. Assets under management topped $500 million by mid-2024. By late 2025, the fund had paid more than $100 million in cumulative dividends to holders. It continued to grow beyond $2 billion by late 2026. The token is designed to maintain a net asset value of around $1, with yield accruing daily in the 35% APY range. Its portfolio consists of short-term U.S. Treasuries and cash equivalents, wrapped in a regulated structure that can settle onchain 24/7. Conventional Treasury products are constrained by market hours and typically settle on T+1 timelines. BUIDL's round-the-clock, near-instant settlement has proven especially attractive to institutions managing liquidity across global portfolios. The latest $52.1 million increase is not being treated as a one-off. In a recent seven-day stretch around mid-August 2026, BUIDL added $32.5 million in market cap, indicating the larger single-day move may reflect accelerating momentum. Traditional money market funds can offer comparable yields, but investors still face settlement lags, limited operating windows, and operational friction when moving between onchain and offchain rails. BUIDL keeps the full lifecycle onchain—from subscription to redemption to yield distribution—reducing those frictions. Token Terminal data points to this growth as part of a broader upswing in tokenized Treasury products. Despite rapid expansion, adoption inside DeFi lending protocols remains relatively low. Competition is also intensifying: Franklin Templeton, Ondo Finance, and other issuers have introduced their own tokenized Treasury offerings, each aimed at different investor segments and blockchain ecosystems. Even at $15–$16 billion, the tokenized Treasury market is small next to the roughly $6.7 trillion U.S. Treasury market—leaving the onchain category as only a tiny sliver of the underlying asset class.