Hyperliquid Launches HIP-4 and Targets Polymarket With Zero-Fee Outcome Markets

Hyperliquid activated its HIP-4 Outcome Markets on mainnet May 2, 2026, bringing fully collateralized, onchain prediction markets directly into the same account where traders already run perpetual futures and spot positions. Key Takeaways: Hyperliquid launched HIP-4 Outcome Markets on mainnet May 2, 2026, with BTC daily binary contracts live and trading. HIP-4 charges zero fees []