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.

Binance Wallet said it launched Event Rush on May 25, 2026, a third-party dApp on BNB Chain that lets users trade onchain event tokens tied to real-world outcomes and settle in USDT. The product uses bonding-curve pricing to adjust token prices with supply and demand, and users can either trade before settlement or hold winning tokens to share 100% of the collateral pool.

On May 26, 2026, the Bank of England and the Financial Conduct Authority published a joint consultation setting out a shared approach to tokenized wholesale financial markets in the UK. The Call for Input seeks views on tokenized assets, DLT-based settlement and collateral processes, and prudential treatment, as regulators also reiterated plans linked to a 2028 synchronization service and a pilot tokenized gilt (DIGIT).

On May 25, 2026, a proposed U.S. Senate CLARITY Act draft was described as pushing crypto firms to redesign stablecoin yield products around AI-driven, transaction-based DeFi strategies instead of passive interest. The draft would extend limits beyond issuers to exchanges, brokers, and custodians, effectively preventing traditional APY on idle dollar-backed stablecoin balances. Firms are exploring "Yield-as-a-Service" structures where AI agents route liquidity across protocols to earn fees and incentives, a shift analysts say could raise complexity and retail risk.