BlackRock's (@BlackRock) BUIDL is a tokenized US Treasury fund, and on Avalanche (@avax) it has quietly become the network's largest real-world asset. The fund holds cash, short-term Treasury bills, and repurchase agreements, aims to keep each token worth about $1, and pays daily dividends straight to holders' wallets. On July 12, its Avalanche footprint crossed a line that turned heads: BUIDL's assets on the network more than doubled in seven days, climbing from roughly $464 million to over $900 million.

That is a 105% jump, about $436 million in new money, in a single week. It pushes Avalanche past every other chain except Ethereum for BUIDL, and it raises a fair question for anyone watching $AVAX: does a number this big actually change much for the network?

What is BUIDL, and how does it run on Avalanche?

BUIDL, full name the BlackRock USD Institutional Digital Liquidity Fund, launched on Ethereum in March 2024 through Securitize (@Securitize), BlackRock's tokenization partner. BlackRock also holds a strategic stake in Securitize. The fund expanded to Avalanche and four other chains in November 2024, and later reached Solana and BNB Chain.

On Avalanche, BUIDL lives on the C-Chain as its own share class. It leans on the things Avalanche sells to institutions: low fees, sub-second finality, and Ethereum tooling compatibility. There is also sBUIDL, a composable version issued by Securitize that plugs into DeFi. Since May 2025, sBUIDL has worked as collateral on the Euler (@eulerfinance) lending market on Avalanche, letting approved holders borrow $USDC or $AUSD against it.

The fund currently yields about 3.40% on a seven-day annualized basis, with management fees running from 0.20% to 0.50% depending on the share class. BNY Mellon (@BNYglobal) acts as administrator and custodian.

Why the sudden surge?

The jump landed fast. Here is where things stand across the fund:

  • Avalanche now holds about $902.7 million in BUIDL, close to a third of the fund's total value.
  • Total BUIDL AUM across all chains sits near $2.87 billion.
  • Ethereum leads with roughly $1.02 billion, and Solana follows with about $616 million.

That makes Avalanche the second-largest chain for BUIDL by assets. It is also, by a wide margin, the biggest single tokenized asset on Avalanche.

One detail is worth keeping in mind before reading too much into it. BUIDL is not a retail product. The minimum investment is $5 million, and it is sold only to qualified purchasers under Reg D 506(c) and a 3(c)(7) exemption. The $436 million jump in a week almost certainly reflects one or two large allocations rather than a broad wave of new buyers. The headline is real. The base underneath it is narrow.

What it means for Avalanche's RWA push

Even with that caveat, the direction matters. BlackRock is choosing to grow its Avalanche position, rather than to keep everything on Ethereum. That is the kind of signal the network has spent two years chasing. Avalanche already hosts institutional work from J.P. Morgan's Kinexys, Citi, KKR, and Franklin Templeton, and BUIDL is now the anchor tenant.

Per RWA.xyz, total tokenized real-world asset value on Avalanche has climbed to about $2.10 billion, up more than 58% over the past 30 days. BUIDL is doing much of that lifting. More BUIDL on-chain also gives sBUIDL more room to move inside Avalanche DeFi, which is the flywheel the ecosystem wants: institutional assets arrive, then get put to work in lending and collateral markets.

Did the surge move $AVAX?

Not really, at least not yet. $AVAX trades around $6.60, with a market cap near $2.85 billion, and the token is down about 4% over the same seven days that BUIDL doubled. Avalanche's DeFi TVL sits near $460 million.

The gap is the story. BUIDL holders pay gas to mint, transfer, and redeem, but a fund with relatively only a few holders does not generate the daily transaction volume needed to move a Layer 1's economics on its own. The value to $AVAX is slower and less direct: a bigger institutional footprint, a stronger RWA narrative, and a reason for the next asset manager to look at Avalanche first.

Avalanche has the largest tokenized Treasury position outside Ethereum, a DeFi path for that money through sBUIDL, and a token that has not budged on the news. A $900 million allocation is easy to park. Turning it into the kind of on-chain activity that shows up for $AVAX is the harder part.

Sources

  • Avalanche Official announcement of BUIDL's Avalanche launch in November 2024, with the network's institutional pitch.
  • RWA.xyz Live BUIDL dashboard covering per-chain AUM, yield, and fees.
  • BlackRock (PR Newswire) Press release on the multi-chain share class expansion, including Avalanche.
  • Crypto.news Reporting on the $900M surge and the sBUIDL collateral integration on Euler.
  • CoinGecko Live $AVAX price, market cap, and supply figures.