Hyperliquid has published a detailed fee framework for its Outcome Tokens under the HIP-4 upgrade, introducing a testnet model that charges nothing to open positions while applying fees when trades close or settle. The design is meant to lower retail entry costs and position Hyperliquid as a more aggressive challenger to prediction-market incumbents such as Polymarket and Kalshi.
The move comes as prediction markets continue to expand, and Hyperliquid is attempting to bring event contracts into the same account environment as spot and perpetual positions. If the model gains traction, it could redirect liquidity from perp traders into outcome-based markets while creating a new fee stream tied to HYPE-token economics.
HIP-4 Targets Lower Entry Costs
Under the HIP-4 testnet framework, Outcome Tokens follow six fee scenarios. Minting carries no fee and does not count toward trading volume. Normal trades may charge maker-only fees or no fees, while burning trades may charge taker-only fees or fees on both sides. Settlement fees apply when payouts are distributed according to the final settlement fraction.
Hyperliquid also introduced preferential economics for “aligned quote tokens,” including a reported 20% reduction in taker fees and a 50% increase in maker rebates in some configurations. The platform and secondary reporting estimated that retail costs could fall by 50% to 90% versus traditional prediction venues, though those figures could not be independently verified from the supplied material.
The model routes much of its incentive design through HYPE. Holders can use the token for fees or stake it for discounts, with reported fee reductions and staking-related benefits reaching up to 40%. The framework also earmarks 97% of collected trading fees for an Assistance Fund used for HYPE buybacks, with 3% directed toward liquidity.
Token Incentives Meet Open Execution Risks
Outcome Tokens are structured as fully collateralized, expiry-based binary contracts that resolve to either 0 or 1. HIP-4 integrates those markets into existing Hyperliquid accounts alongside spot and perpetual positions, giving the platform a composability advantage if traders adopt event contracts as part of broader portfolio strategies.
Hyperliquid’s Layer-1 order book and on-chain matching engine are positioned as technical differentiators for high-frequency activity. That infrastructure could help the platform compete on execution quality, especially if it succeeds in channeling existing perp liquidity into prediction markets.
Still, the rollout faces meaningful constraints. Hyperliquid remains unavailable to U.S. users, limiting access to a market currently served by regulated venues such as Kalshi. Oracle design also remains unclear in the supplied materials, with some references describing “no oracles” for select contracts and others leaving oracle selection and dispute resolution unresolved.
Validator concentration is another operational concern, with most validators reported to be located in a single Tokyo data center. That raises resilience questions for participants evaluating settlement reliability and infrastructure risk.
Arthur Hayes described HYPE as a “prediction market weapon,” capturing the platform’s token-centric growth thesis. The real test will come after HIP-4 moves beyond testnet. Traders and liquidity providers will watch open interest, closing and settlement fees, revenue capture, HYPE buybacks and any clarification on oracle design and regulatory posture.
