Crypto Price Prediction Markets

Crypto Price Prediction Markets on HIP-4

These markets are live right now on Hyperliquid testnet. app.purrdict.xyz gives you a full trading interface for all active HIP-4 markets.

What’s Actually Live on Testnet

Four assets currently have recurring price binary markets on HIP-4:

Also live: two custom markets — “What will Hypurr eat?” and “Who will win the HL 100 meter dash?” — which are multi-outcome question markets, not price binaries.

How Recurring Price Binaries Work

Each market is described by a structured string in HIP-4’s outcomeMeta:

class:priceBinary|underlying:BTC|expiry:20260327-1500|targetPrice:87432|period:15m

Target price: Set to the underlying asset’s mark price from HyperCore’s native price feed at the moment the market opens. Not an external oracle.

Resolution: When the expiry timestamp passes, Hyperliquid’s L1 validators vote via VoteGlobalAction. If the current mark price is above the target, YES wins (1.00 USDH per share). If below, NO wins. Losers receive 0.

Auto-rotation: The moment one market expires, a new one opens with the current mark price as the fresh target.

How Prices Are Quoted

Each market has two sides — YES and NO — that always sum to 1.00 USDH:

• YES at 0.65 + NO at 0.35 = the market assigns 65% probability to an up move
• Buying 100 YES shares at 0.65 costs 65 USDH; pays 100 USDH if correct (profit: 35)
• Buying 100 NO shares at 0.35 costs 35 USDH; pays 100 USDH if correct (profit: 65)

The mirrored orderbook design means a buy on YES automatically creates a matched NO at the complementary price. The engine mints both shares simultaneously and collects 1.00 USDH from the combined trade.

Trading Mechanics

• Minimum order: 20 shares
• Price format: 5 significant figures, tick size varies by price range
• Collateral: USDH (Hyperliquid’s native stablecoin)
• Settlement: Automatic, no claim needed — USDH appears in your balance at resolution
• TIF options: FrontendMarket (market order), Gtc (limit), Alo (post-only)

Getting Started

1. Go to app.purrdict.xyz
2. Connect your Hyperliquid testnet wallet
3. Get testnet USDH from the Hyperliquid testnet faucet
4. Pick an asset and timeframe
5. Buy YES or NO shares
6. Wait for automatic resolution at expiry