BlackRock’s BUIDL Trades on Uniswap as Wall Street Steps Into DeFi

BlackRock’s tokenized US Treasury fund began trading on the Uniswap decentralized exchange on February 11, 2026, in a Securitize-brokered arrangement that put the world’s largest asset manager inside DeFi for the first time. The deal links BlackRock’s $1.8 billion BUIDL fund to Uniswap’s RFQ-based UniswapX protocol, where a whitelist of institutions and market makers settle trades atomically onchain. It came together after a year and a half of meetings between the firms, and one quiet figure moved between both sides.

The first trade is small in dollar terms. The template it sets is what every Wall Street desk is now reading.

How BlackRock’s Tokenized Fund Lands on Uniswap

Uniswap Labs and Securitize announced on February 11, 2026 that BlackRock’s USD Institutional Digital Liquidity Fund, ticker BUIDL, is now tradable through UniswapX, the protocol’s RFQ-based layer for swapping assets against whitelisted liquidity providers. BlackRock also disclosed a strategic investment in the Uniswap ecosystem, including a purchase of Uniswap’s UNI governance token, though neither side disclosed the size of that buy.

BUIDL launched in 2024 as BlackRock’s tokenized short-duration US Treasury fund, designed to give institutional clients a way to hold yield on a blockchain without giving up the credit quality of US government debt. Its market value sat at around $1.8 billion at announcement, and BlackRock is the largest asset manager in the world, with more than $10 trillion under management.

Uniswap’s UNI token, the proxy for the protocol’s value, was trading near $3.30 at the time of the announcement, with an overall market capitalization above $2 billion. The wider DeFi space the trade sits inside holds roughly $100 billion of capital across protocols. Securitize, which has been putting real-world assets onchain since before this deal, reported more than $4 billion in assets under administration as of November 2025.

• BUIDL market value (Feb 11, 2026): around $1.8 billion
• UNI price (Feb 11, 2026): around $3.30
• Uniswap market cap: above $2 billion
• BlackRock AUM: above $10 trillion
• Capital across DeFi protocols: roughly $100 billion
• Securitize AUM (Nov 2025): above $4 billion

A widely shared post put it bluntly, with the tweet calling BlackRock’s DeFi entry unimaginable capturing the scale of the shift for an industry that spent a decade hearing that DeFi would never touch real Wall Street money.

How a Trade Settles Through the Whitelist

UniswapX is not the standard Uniswap automated market maker where any wallet can swap a token against a public liquidity pool. It is a Request for Quotation layer: a buyer broadcasts intent, a network of approved market makers returns quotes, the protocol selects the best price, and the trade settles through an immutable smart contract in one atomic step. The full integration is laid out in the Uniswap Labs press release on the BUIDL integration.

Securitize, a US-registered broker-dealer and transfer agent that has been putting real-world assets onchain for years, runs the gates. Every BUIDL counterparty, both the institutional buyer and the market maker quoting the trade, has to be pre-qualified through Securitize’s onboarding before it can show up on UniswapX’s order book.

Once a trade fires, the BUIDL and its USDC stablecoin counter-leg swap hands simultaneously inside the smart contract. Either the entire transaction completes or none of it does. That atomic settlement is what eliminates the counterparty risk that haunts traditional Treasury fund redemptions, where a sell order can sit in a queue for days while the market moves against it.

Securitize Markets also whitelists the market makers themselves. Three named firms sit on the opening roster: Wintermute, a longtime crypto liquidity provider; Flowdesk; and Tokka Labs. They are the only entities currently allowed to quote BUIDL against USDC inside UniswapX, and access runs 24 hours a day, 365 days a year.

What the Access Gate Actually Excludes

The most important constraint sits in the small print. Access to BUIDL on Uniswap is restricted to qualified purchasers, a US securities-law designation for individuals or entities holding at least $5 million in investments. Most of the wallets that hold UNI today, and most of the retail accounts that drove Uniswap’s volume to over $4 trillion since launch, do not clear that bar.

Securitize CEO Carlos Domingo framed the wall as deliberate. Large asset managers, he said, want to walk before they run, and the same infrastructure that runs BUIDL among qualified purchasers today will work equally with retail products tomorrow. That is the path BlackRock and the rest of Wall Street are watching to see whether this deal walks or stalls.

This is the unlock we’ve been working toward: bringing the trust and regulatory standards of traditional finance to the speed and openness for which DeFi is known. For the first time, institutions and whitelisted investors can access technology from a leader in the decentralized finance space to trade tokenized real-world assets like BUIDL with self-custody.

The Quiet Broker Behind the Deal

Mary-Catherine Lader does not appear on either press release for the BUIDL-on-Uniswap deal, but her name came up in every version of the announcement inside the companies.

Lader is the former Uniswap chief operating officer who joined Uniswap after more than a decade inside BlackRock, where she helped start the asset manager’s digital asset division before it had a name. In the years since, she has cycled through both sides of the same table, and the deal announced on February 11 was structured around the kind of compliance and atomic-settlement language she had spent years building at both firms.

When Uniswap founder and CEO Hayden Adams needed a BlackRock counterpart to take a meeting about putting a tokenized Treasury fund onchain, the path ran through her. Adams told Fortune the collaboration came together after a year and a half of in-person meetings at BlackRock’s offices in Manhattan’s Hudson Yards and at Uniswap’s “very pink” SoHo headquarters.

Lader helped arrange both ends of that schedule. She also helped translate the operational vocabulary between the two sides, which is what allowed the deal to use a permissioned RFQ system inside a public decentralized exchange without breaking either side’s compliance posture.

That dual history matters because it explains why the deal does not look like the kind of trade any anonymous treasury desk could have engineered. BlackRock needed a counterparty fluent in both DeFi and securities law. Uniswap needed a counterparty trusted enough inside BlackRock to invite into Hudson Yards. Lader is one of the few people on either side who is both, and her path between the two firms is the single thread the deal hangs on.

Why BUIDL Carried the Flag

BUIDL was the right token to put on Uniswap first because it was already the most institutionally packaged piece of BlackRock’s crypto footprint. It is a regulated short-duration Treasury fund wrapped in a token, and it has been tradable inside traditional finance since launch. Moving it onto a smart contract was a smaller operational lift than launching a new product from scratch.

The other BlackRock product that anchors its crypto push, the spot Bitcoin ETF known as IBIT, is not a candidate for this kind of integration. ETFs trade on regulated exchanges and clear through traditional broker-dealers. BUIDL, by contrast, was built to be portable, which is exactly what UniswapX needs to settle a tokenized fund against USDC 24 hours a day. The same rails are now being used by other issuers routing tokenized dollars and Treasuries through shared exchange infrastructure, as Spark’s recent $150 million deployment onto Uniswap v4 stablecoin pools shows.

BlackRock’s broader logic is the convergence that Robert Mitchnick, the firm’s global head of digital assets, has been describing in public for two years. Tokenized real-world assets move toward stablecoins, stablecoins settle on DeFi rails, and the institutional capital waiting at the edge of crypto now has a familiar doorway in. Spark’s layered stablecoin routing on Uniswap v4 is one early signal of the wider multi-issuer liquidity pattern other asset managers are watching.

This collaboration with Uniswap Labs alongside Securitize is a notable step in the convergence of tokenized assets with decentralized finance. The integration of BUIDL into UniswapX marks a major leap forward in the interoperability of tokenized USD yield funds with stablecoins.

The named parties to the deal:

• Hayden Adams, Uniswap Labs Founder and CEO
• Robert Mitchnick, BlackRock Global Head of Digital Assets
• Carlos Domingo, Securitize CEO
• Mary-Catherine Lader, former Uniswap COO who brokered the deal, ex-BlackRock digital assets

Frequently Asked Questions

What is BlackRock’s BUIDL fund?

BUIDL is BlackRock’s USD Institutional Digital Liquidity Fund, a tokenized short-duration US Treasury fund launched in 2024. Its market value sat at around $1.8 billion at the time of the UniswapX integration, and the fund is structured to give institutional clients blockchain-based exposure to short-term US government debt.

Why did BlackRock start trading on Uniswap in February 2026?

Uniswap Labs, Securitize, and BlackRock announced the BUIDL-on-UniswapX integration on February 11, 2026. The arrangement puts the world’s largest asset manager onto a decentralized exchange for the first time, alongside a strategic investment by BlackRock in the Uniswap ecosystem that includes a purchase of UNI tokens.

Who can actually trade BUIDL on Uniswap?

Only qualified purchasers, a US securities designation requiring at least $5 million in investments, plus a Securitize-cleared whitelist of market makers. Wintermute, Flowdesk, and Tokka Labs are the three named market makers approved to quote BUIDL against USDC at launch.

What is UniswapX?

UniswapX is Uniswap’s request-for-quotation layer, not the public automated market maker that retail traders use. It is a permissioned RFQ system where whitelisted market makers compete to quote trades that settle atomically through smart contracts onchain.

Will retail traders get access to BUIDL on Uniswap?

Not yet. Securitize CEO Carlos Domingo said the infrastructure will work equally with retail products in the future, but the launch is gated to qualified purchasers. The current market-maker roster of Wintermute, Flowdesk, and Tokka Labs was disclosed at announcement.

Why does this deal matter beyond one fund?

BUIDL is the first tokenized fund from a systemically important asset manager to settle through a DeFi protocol, paired with a strategic investment in the protocol’s native token. The pattern is the template other Wall Street firms will use to bring their own tokenized products onchain.

Disclaimer: This article is for informational purposes only and does not constitute financial advice. Digital asset prices and on-chain liquidity conditions can change quickly, and the figures cited are accurate as of publication. Readers should consult a qualified financial professional before making investment decisions.