Hyperliquid Launches Canonical Prediction Markets Where Validators Replace External Oracles

Hyperliquid expanded its HIP-4 outcome market system Tuesday to support prediction-style contracts tied to offchain events such as U.S. inflation data and Federal Reserve decisions, with the platform’s validator set taking on responsibility for both market deployment and settlement. The move places the decentralized exchange in direct competition with Polymarket and Kalshi, but with a structurally different trust model.

Under the new framework, canonical outcome markets are published by automated newsfeed software that validators run as part of their regular chain operations. Rather than relying on an external oracle network such as UMA, which Polymarket uses for resolution, Hyperliquid validators ingest the news, decide which markets get listed, and vote on settlement outcomes through onchain governance. Validators evaluate each market on “unambiguous rules, correctness, and subjective quality of the market,” the team said in a Telegram announcement.

This story is an excerpt from the Unchained Daily newsletter.

The first canonical offchain market is “May CPI year-over-year,” which settles on June 10 based on official Bureau of Labor Statistics data. The market had recorded about $11,268 in volume at last check. Outcome contracts on Hyperliquid are fully collateralized, dated, and free of leverage and liquidation risk. Traders buy Yes or No contracts tied to a defined event, with each contract settling at either 1 USDC or 0 USDC.

HIP-4 launched on Hyperliquid mainnet on May 2 as a limited-feature initial release. The first markets were daily Bitcoin price binaries that recorded over 6 million contracts and roughly 4,000 unique traders on day one. Today’s update extends the protocol into a broader category of event contracts where outcomes depend on external information. Fully permissionless HIP-4 deployments are not yet live; the team expects rapid experimentation from developers, including Outcome and Trade.xyz, once that capability is enabled.

The competitive context is sharp. Polymarket recorded nearly $39 billion in U.S. volume year to date and just took a $700K hit from a private-key compromise of an admin wallet, exactly the kind of operational-security failure a closed-loop validator design is meant to harden against. The validator-driven approach also introduces its own centralization tradeoff, since validators hold significant power over what markets get approved and how they resolve. HYPE traded near $60 Tuesday after sliding 3.5% on the day, though the token remains up more than 35% over the past week.