HIP-4 outcome markets

HIP-4 is Hyperliquid's standard for outcome markets, its prediction markets. Each outcome is listed as a market on the exchange's own order book, priced strictly between zero and one, and settled by the venue to zero or one at resolution. Buying does not mint anything on-chain; it opens a position in your exchange account, which the venue marks to its terminal value when the outcome is known.

Two sides, whole shares​

Each outcome has two sides, shown as Yes and No. Shares are whole integers, and held shares appear in the account's spot balance rather than as tokens in a wallet.

How it differs from Polymarket​

On Polymarket you hold a conditional token on Polygon, and collecting after resolution is an on-chain redemption that someone has to submit and that can fail and need retrying. On Hyperliquid you hold a position, and the venue settles it. The failure modes differ accordingly: Polymarket's is redemption, Hyperliquid's is delisting, since a venue can remove a market on its own schedule, which on-chain conditional tokens cannot do. The comparison, written from implementing against both, is How are prediction markets on Hyperliquid different from Polymarket?

How BT365 uses it​

BT365 runs both venues. HIP-4 markets have a manual trading terminal and an automated fair-value trader template; what happens when a market is removed before it resolves is covered in When a market is delisted before it resolves.

BT365 is not available in every jurisdiction, and nothing on this page is investment advice. Trading prediction markets carries risk of loss.