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Published May 4, 2026 HIP-4 Outcome Markets Now Streaming HIP-4 launched on Hyperliquid mainnet on 2 May 2026, adding outcome markets to HyperCore - fully-collateralized binary contracts that trade on the same CLOB as spot and perps, settle in USDH, and resolve to 0 or 1 against an authorized oracle. Because HIP-4 markets ride the same matching engine as every other HyperCore market, the same GoldRush primitives that power perps and spot work on outcomes from day one - no new client, no new schema.

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What’s new

  • Probability candles - subscribe to ohlcvCandlesForPair or ohlcvCandlesForToken on any HIP-4 encoding. Prices are bounded 0.001-0.999, so each candle’s close is the implied probability.
  • Fills via walletTxs - every HIP-4 fill arrives as a HypercoreFillTransaction with price as the implied probability and closed_pnl realised in USDH.
  • outcomeMeta discovery endpoint - new drop-in Info type at POST https://hypercore.goldrushdata.com/info that returns the active outcome universe, including outcome ID, name, parsed description, and sideSpecs.
  • Settlement detection - the last fill on a resolved market closes at 0 or 1, followed by USDH ledger deltas on every position-holder.
The first live market is a recurring daily BTC binary outcome that resolves against the HyperCore BTC mark price at a fixed UTC timestamp. Permissionless builder deployment follows in stages, mirroring HIP-3’s rollout - and new markets appear in outcomeMeta the moment they’re registered. Learn more