OKX-ICE Plans Tokenized Stock Trading Through a Uniswap v4 Hook

OKX and Intercontinental Exchange's planned tokenized-stock venue will use Uniswap v4 pools on X Layer, with its own smart-contract extension to control who can trade and supply liquidity, according to its Oct. 4 public notice.

Each pool would pair one stock token with USDC, USDG or USDT. The venture, called OKXICE TSV, plans round-the-clock trading in stocks including Nvidia, Tesla and Apple.

The venue remains pre-launch: its website says “OKXICE TSV is coming.” Co-chair Andrew Cuomo said the venture has notified the Securities and Exchange Commission that it intends to launch under the regulator's temporary innovation exemption.

The SEC order conditionally exempts qualifying venues from the definition of an exchange. OKXICE's notice says it is not registered with the SEC for activities under the exemption and that the agency has not passed upon the merits or accuracy of its disclosures.

Uniswap founder Hayden Adams described the project as “launching as a Uniswap v4 hook.” Hooks let developers add custom rules to individual pools.

KYC Inside the Contracts

Investors must pass know-your-customer or business verification, anti-money-laundering, sanctions and wallet screening, and obtain an account with the stock tokenizer. OKXICE then issues a non-transferable “soulbound token,” or SBT, to the approved wallet; the tokenizer separately adds it to its stock-token whitelist.

The hook checks that credential for every trade and liquidity action. Only OKXICE can create pools using its TSV hook, although any participant who completes onboarding can provide liquidity. These are permissioned pools on public infrastructure—not stock liquidity that any Uniswap user can access.

Approved wallets can interact directly with the venue's contracts without using its interface. Third-party contracts, however, need OKXICE whitelisting. The notice says the venue does not currently support aggregators, solvers or relayers, limiting how other DeFi applications can connect to its liquidity.

The hook leaves Uniswap's pricing formula unchanged, and liquidity providers can concentrate their deposits within chosen price ranges. The venue's contracts do not use external price oracles. Its notice warns that pool prices can diverge from the underlying stocks, particularly outside regular market hours or when liquidity is thin.

OKXICE also retains administrative powers to upgrade contracts, pause trading and withdraw a liquidity provider's liquidity. The notice says critical functions require multiple signatures, while day-to-day operations use a separate single-signature key.

Uniswap introduced Permissioned Pools in July, a hook standard for issuer-controlled access to regulated assets, as The Defiant reported. OKXICE's notice describes its own TSV hook and names OKX Technology Inc. as its software developer.

Before commencing operations, the venture says it will have the hook audited internally by OKX Technology Inc. and externally by Certified Kernel Tech LLC.