On May 26, 2026, the UK government added 18 people and entities to its Russia sanctions list, including crypto firms Huobi Global S.A. (also listed as HTX) and EXMO Exchange Limited. The designations introduce measures such as asset freezes and, for some entities, limits on internet services access and restrictions on correspondent banking and payment processing.

Stable said it launched StableEarn on May 26, a treasury product that routes USDT deposits into a Morpho vault using yield strategies tied to Theo’s real-world asset offerings. The initial vault is backed by Theo’s thBILL, thGOLD, and thUSD, with Gauntlet setting risk parameters, aiming to offer USDT holders on the Stable network yield linked to real-world markets.

On May 26, 2026, the UK placed HTX—listed as Huobi Global S.A.—on its Russia sanctions list as part of an 18-designation package, triggering an immediate asset freeze and a ban on UK financial services access. The measures prohibit UK banks, payment firms and UK-based virtual asset service providers from transacting with or providing correspondent services to HTX, while Exmo Exchange, Rapira, Bitpapa and Eurasian Savings Bank were also sanctioned. The move follows FCA High Court action launched in February 2026 over alleged illegal promotion of crypto services to UK consumers.

Spain’s Consumer Rights Ministry has imposed a temporary ban on prediction markets Kalshi and Polymarket for operating without the gambling licenses required in the country. The restriction is expected to last about 3–4 months while authorities investigate, and Spanish ISPs are implementing DNS and network-level measures to cut off access.

On May 26, OKX introduced Exchange OS, an upgrade to its Ethereum-compatible X Layer network that lets developers and institutions launch their own onchain trading venues using OKX's exchange-grade stack. The framework supports spot markets, perpetual futures, and prediction markets, with shared liquidity, settlement, and risk controls across deployments. OKX said the first Exchange OS-based venue is planned for June, and OKB was trading at $94.21 on May 26, up 13% over 24 hours.

Hyperliquid has added prediction-style outcome markets that let users trade real-world event results, including U.S. CPI releases and Federal Reserve rate decisions, using the same account as its spot and perpetuals products. The feature was announced on May 25 under the HIP-4 framework and uses Hyperliquid’s validator network to settle contracts rather than an external oracle system.

Hyperliquid said it will introduce native oracles and “canonical” on-chain resolutions for HIP-4 outcome markets, shifting settlement away from third-party oracle and voting systems. The platform also moved HIP-4 liquidity to USDC and said outcomes will be handled through validator-run software tied into chain operations.

Ondo Finance said on May 26 that founder and CEO Nathan Allman died unexpectedly, and appointed Ian De Bode as chief executive effective immediately. After the update, ONDO fell 4.47% to about $0.42 over 24 hours, while the protocol reported roughly $3.79 billion in TVL across 12 chains.