What Is HIP-4? Hyperliquid's Prediction Market Standard
HIP-4 is Hyperliquid's native standard for prediction markets. It enables binary and multi-outcome event trading with the same performance as Hyperliquid perps.
Definition
HIP-4 (Hyperliquid Improvement Proposal 4) is the native standard for prediction markets on Hyperliquid. It defines how binary and multi-outcome event contracts are created, traded, and settled on the Hyperliquid L1.
Key Features
- Native CLOB — prediction markets use the same central limit order book engine as Hyperliquid perps, inheriting sub-second fills and deep liquidity.
- Instant settlement — trades settle on-chain in the same block with sub-second finality.
- Shared margin — traders can use the same collateral across perps, spot, and prediction markets.
- Automatic settlement — markets resolve on-chain without manual intervention for price-based events.
How HIP-4 Differs from Other Standards
| Feature | HIP-4 | Polymarket (CTF) | Kalshi |
|---|---|---|---|
| Settlement | On-chain L1 | Polygon + centralized | Centralized |
| Order matching | On-chain CLOB | Off-chain + on-chain | Off-chain |
| Fees | Low | 0-2% | Variable |
| Speed | Sub-second | ~2 seconds | Instant |
| Self-custody | Yes | Partial | No |
Why HIP-4 Matters
HIP-4 is the first prediction market standard that combines the transparency of on-chain settlement with the performance of a centralized exchange. This makes it possible to build prediction market experiences that rival traditional trading platforms.
HIP-4 on Purrdict
Purrdict is the first dedicated frontend for HIP-4 prediction markets. It provides a clean, fast interface for browsing markets, placing orders, and tracking positions — all powered by HIP-4 under the hood.