In a move indicating its mainnet launch is imminent, Hyperliquid has released the fee structure for its outcome tokens, which facilitate prediction market-style trading on the platform. The prediction market sector has seen a significant surge in trading volume, exceeding 300% in 2025 to reach $63.5 billion, and Hyperliquid is developing infrastructure to compete with established players like Kalshi and Polymarket.
The fee structure reveals that opening a position is free, with fees only applicable when closing or settling a trade, and outlines six scenarios for minting, trading, burning, and settlement. Traders utilizing Hyperliquid's aligned quote tokens benefit from reduced taker fees by 20% and increased maker rebates by 50% compared to standard rates. The introduction of outcome tokens through the HIP-4 upgrade will enable users to trade binary contracts on real-world events, in addition to perpetuals and spot positions, all within a single account, as Hyperliquid aims to rival platforms like Polymarket.
Following the success of its previous upgrade, HIP-3, which has accounted for over 35% of the platform's trading volume since its introduction in October 2025, Hyperliquid's outcome tokens are currently available on testnet, with no confirmed mainnet launch date.