BlackRock's BUIDL fund has climbed back to about $2.8 billion in assets, retaking the top spot among tokenized U.S. Treasury products after Circle's USYC briefly overtook it earlier this year. The fund now holds roughly 18.5% of the $15.1 billion tokenized Treasury market, reclaiming the top spot seems to be less about bragging rights than about defending the on-ramp BlackRock built.
The largest tokenized Treasury fund in the world changed hands twice in six months, and BlackRock just won it back. BUIDL, formally the USD Institutional Digital Liquidity Fund, has grown to approximately $2.8 billion in assets, putting it back ahead of Circle's USYC as the single largest product in the category.
A Lead, Not a Blowout
That $2.8 billion works out to about 18.5% of the entire $15.1 billion tokenized Treasury market, meaning the rest of the market, USYC included, splits the remaining 81.5% between them. BUIDL lost the top spot to USYC in March 2026 before reclaiming it by late August.
What BUIDL Actually Is
BUIDL launched in March 2024 as BlackRock's first tokenized fund, built and administered by Securitize, which now handles asset servicing across eight blockchains including Ethereum, Solana, Aptos and BNB Chain. Each token targets a stable $1 net asset value and accrues yield daily through a rebase mechanism, turning a money-market fund into something that trades and settles like a crypto asset around the clock.
The fund's underlying holdings, cash, short-term U.S. Treasury bills and repurchase agreements, are conservative by institutional standards. Moody's assigned BUIDL a top AAA-mf rating earlier this year. Securitize, meanwhile, posted record first-quarter 2026 revenue on the back of asset-servicing fees tied largely to the fund and its own NYSE listing.
Competition Keeps Building Underneath
BUIDL's lead is real but fragile. Circle's USYC briefly overtook it in March. The broader tokenized Treasury market has kept growing underneath both funds, with entrants like Franklin Templeton and Ondo Finance chipping away at the same pool of institutional demand. Every basis point of that market represents money moving off traditional money-market funds and onto public blockchains, a trend that has continued regardless of where bitcoin's price happens to be trading on any given day.
Tokenized Treasuries are not a crypto bet; they are traditional, yield-bearing government debt wrapped in blockchain infrastructure, which is why institutions comfortable with BlackRock but wary of bitcoin's price swings have been fast adopters. Securitize, Ethena and Uniswap Labs have all built additional rails around BUIDL this year, from round-the-clock atomic swaps to direct trading access, each making it easier for institutional cash to flow onto BUIDL specifically rather than a rival fund.
Source: Bitcoin News
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