BlackRock's BUIDL Reclaims Tokenized Treasury Lead With $2.8B Market Cap

BUIDL Back on Top at $2.8B

BlackRock's BUIDL has retaken the top position among tokenized US Treasury funds, reaching a market capitalization of roughly $2.8 billion as of August 31. Data from Token Terminal places the fund at approximately 18.5% of a tokenized Treasury market it sizes at $15.1 billion, putting BUIDL narrowly ahead of Circle's USYC after the two products swapped the lead within a single week. A weekend tracker post confirms the flip, noting that BUIDL — a tokenized US Treasury fund issued through Securitize — had regained the largest position in the category by market capitalization.

weekend tracker posthttps://x.com/WuBlockchain/status/2094238800172184013?ref_src=twsrc%5Etfw

BUIDL, short for the BlackRock USD Institutional Digital Liquidity Fund, is administered by Securitize and gives qualified institutions on-chain exposure to short-term US government debt. Tokenized Treasury funds hold the underlying bills off-chain while a blockchain token tracks ownership, and settlement clears around the clock instead of following the multi-day cycles that still govern traditional bond markets. That structure has made the product class a popular destination for idle institutional cash and a convenient form of yield-bearing collateral — precisely the kind of asset decentralized lending venues such as Aave are designed to accept. For corporate treasurers the appeal is straightforward: the position earns Treasury yield while staying liquid and programmable, something a conventional bond settlement workflow cannot deliver. Institutions can deposit idle balances, pledge the tokens as returning collateral, or shift them between counterparties without waiting for a banking window to open. A $15.1 billion aggregate market for on-chain Treasury products is itself a milestone for the tokenization thesis, and BUIDL's roughly one-in-five share makes it the reference product rivals now benchmark against.

USYC's Brief Reign Ends

The lead change cuts both ways, and quickly. USYC had overtaken BUIDL in late August, when it reached roughly $2.9 billion against BUIDL's $2.7 billion, before surrendering the top spot again this week. The fund's one-year trajectory is striking: it climbed from roughly $600 million to close to $3 billion during the past twelve months. USYC represents a share in a fund built on Hashnote, the tokenization firm Circle acquired in 2025 and folded directly into its stablecoin business. That makes the rivalry more than a product race — it pits the world's largest asset manager against the issuer of one of the largest stablecoins, each competing for the same institutional cash-management mandate.

Neither structure is exotic by tokenization standards. Wrapped assets such as Wrapped Bitcoin (WBTC) established the model of representing an external asset as an on-chain token, and earlier generations of token offerings were sold to early buyers under a Simple Agreement for Future Tokens (SAFT). Tokenized Treasuries apply the same wrapper concept to regulated, yield-bearing instruments, which helps explain why adoption has moved faster among conservative allocators than most crypto-native products. The pattern also contrasts with a corporate Ethereum treasury strategy, in which a company parks a volatile asset on its balance sheet; here the on-chain position tracks a stable, government-backed instrument. Still, neither fund has managed to hold the lead for long — and that instability is itself informative, suggesting institutions are actively comparing competing Treasury products rather than settling on a single default option. Readers tracking the market in real time can follow live spot and futures prices on Bybit.

Can RWA Growth Move Beyond Treasuries?

COINOTAG's read of the primary record — the August 31 tracker post and the Token Terminal dataset behind it — is that the churn at the top matters more than the ranking itself. Two products trading the lead within days signals a genuinely contested category rather than a niche dominated by one early mover, and institutions appear to be benchmarking actively instead of defaulting. The open question is whether this demand stays confined to government bond products or spreads into other corners of on-chain finance; so far, growth remains concentrated in Treasuries even as the broader real-world asset sector expands.