HIP-4 Outcome Markets: Collateral, Trading, and Settlement Mechanics
Summary
HIP-4 describes fully collateralized, fixed-range outcome contracts as a primitive for prediction markets and bounded option-like products. The initial example is a recurring binary market settling against HyperCore’s BTC mark price at a specified daily time; the document says multi-outcome markets are planned but not included in the initial mainnet release.
Each market has Yes and No tokens that settle into quote tokens according to a settlement fraction. Their order books share liquidity: buying one side corresponds to selling the other at the complementary price, with price-side-time priority. Collections of outcomes called questions link separate books and allow holders of No positions across outcomes to redeem quote tokens before settlement. The document also notes API differences from spot, initially zero fees, and compatibility with other HyperCore primitives. It is a mechanics overview rather than an analysis of market performance; it gives no trading results, and describes staged rollout and some trading ergonomics as subject to future improvement.
Key ideas
- Outcome contracts are fully collateralized, settle within a fixed range, and avoid leverage and liquidation mechanics.
- Yes and No tokens settle into quote tokens according to the market’s settlement fraction.
- The Yes and No books share liquidity through complementary prices and generalized price-side-time priority.
- A question links multiple outcome books, and No positions across its outcomes can be merged for early redemption.
- The initial binary market and zero-fee setup are described as part of an initial rollout, with additional features planned.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.