Hyperliquid Challenges Prediction Market Leaders with New Outcome Token Framework

Hyperliquid is expanding its trading capabilities by introducing outcome tokens, a move designed to capture a share of the rapidly expanding prediction market sector. The platform recently published its detailed fee structure, signaling that a mainnet launch is imminent. The prediction market landscape has seen explosive growth, with total trading volumes surging over 300% in 2025 to reach $63.5 billion. By implementing the HIP-4 upgrade, Hyperliquid will allow users to trade binary contracts on real-world events within the same account used for perpetuals and spot positions, creating a unified trading experience. The proposed fee model is designed to attract liquidity by eliminating costs for opening positions, with fees applied only during closing or settlement. Furthermore, the platform will incentivize 'aligned quote tokens,' offering maker rebates 50% higher and taker fees 20% lower than standard rates to encourage market making. This strategic pivot follows the success of the HIP-3 upgrade, which introduced permissionless perpetuals and has grown to account for more than 35% of the platform's total trading volume since October 2025. While competitors like Polymarket have indicated that perpetual trading is forthcoming, Hyperliquid's integrated approach seeks to establish a comprehensive hub for diverse derivative products. Currently, the outcome tokens remain on the testnet, and the platform has not yet confirmed a specific date for the mainnet rollout.