Prediction Markets on Hyperliquid: The HIP-4 Guide

What are prediction markets on Hyperliquid?

Prediction markets on Hyperliquid are fully-collateralized outcome contracts powered by HIP-4, a protocol that adds event-based trading to the same matching engine that processes $200B+ per month in perpetual futures volume. Each outcome share trades between $0 and $1 on a fully on-chain central limit order book (CLOB), with sub-second finality and shared margin across all Hyperliquid asset classes.

Unlike standalone prediction market platforms, HIP-4 markets are native to Hyperliquid’s L1. They share margin with perps and spot, settle atomically on-chain, and inherit the performance of one of the highest-throughput blockchains in crypto. This is not a sidechain product bolted on to an existing exchange — it is a new asset class running on the core infrastructure.

This guide covers everything you need to know: the protocol, the mechanics, the market types, and how it stacks up against every other platform in the space.

What is HIP-4?

HIP-4 (Hyperliquid Improvement Proposal 4) is the specification that defines how prediction markets operate on Hyperliquid. It was introduced to extend Hyperliquid’s matching engine beyond perps and spot tokens into outcome trading — a term Hyperliquid uses for prediction market contracts.

The key design decision: HIP-4 markets are not a separate system. They share the same orderbook infrastructure, the same consensus layer (HyperBFT), and the same collateral pool as every other Hyperliquid product. An order to buy “BTC > $95k YES” is processed by the exact same engine that matches a 50x BTC-PERP order.

This is architecturally different from every other prediction market platform. Polymarket runs an off-chain orderbook with on-chain settlement on Polygon. Kalshi runs a fully centralized exchange. HIP-4 runs everything — matching, settlement, collateral management — on a single on-chain system with sub-second finality.

Technical details that matter

• Asset IDs: HIP-4 outcome tokens use the formula a = 10000 + pairIndex for spot orders, giving each outcome its own tradeable pair on the CLOB
• Collateral: All markets are denominated in USDC. Shares are fully collateralized — no leverage, no liquidation risk
• Oracle feeds: Price-based markets use Hyperliquid’s own spot and perp price feeds. No external oracle dependency (no Chainlink, no UMA)
• Tick size: Prices follow 5 significant figures — tick = 10^(floor(log10(price)) - 4). The price must be divisible by the tick

How the CLOB works for prediction markets

If you have traded on any exchange — Binance, Coinbase, even a stock broker — you already understand the core mechanic. HIP-4 prediction markets use a standard central limit order book.

Each outcome token has its own order book. You can place limit orders, market orders, or cancel orders just like any spot market. The matching engine pairs buyers and sellers in price-time priority.

Here is a concrete example using a real testnet market:

Market: “Will BTC close above $95,000 today?”

The YES order book shows bids at $0.66, $0.67, $0.68 and asks at $0.69, $0.70, $0.71. You think BTC will close above $95k, so you place a market buy for 100 YES shares at $0.69. Your order fills instantly against the best ask. You now hold 100 YES shares that cost you $69.

If BTC closes above $95k, each share pays $1. You collect $100 for a $31 profit (44.9% return). If BTC closes below $95k, your shares pay $0 and you lose your $69 stake.

The matching happens on-chain in under one second. No off-chain relay. No optimistic settlement window. Your fill is final.

Market types on HIP-4

HIP-4 supports three market structures, each suited to different kinds of questions.

Binary markets

The simplest form: a yes/no question. “Will BTC close above $95k today?” creates two tokens — YES and NO. Their prices always sum to $1 (enforced by arbitrage). You buy whichever side you believe in.

Binary markets are the bread and butter of prediction markets. They are clean, easy to understand, and offer clear risk/reward. Buy at $0.30, max gain is $0.70, max loss is $0.30.

Multi-outcome markets

Questions with more than two answers. The Hyperliquid testnet market “What will Hypurr eat?” has multiple outcomes: Akami, Otoro, Canned Tuna, and others. Each outcome gets its own token and its own order book. All outcome prices approximately sum to $1.

Multi-outcome markets are where prediction markets go beyond anything traditional finance can offer. You cannot buy a futures contract on “what a cartoon cat eats for dinner.” But you can buy an outcome token for it, and the crowd-sourced price tells you something real about collective expectations.

On the testnet, Akami leads at roughly $0.42, with Otoro at $0.25 and Canned Tuna at $0.18. If you think the market is wrong about Canned Tuna, you can buy it cheap and profit massively if you are right.

Recurring markets

This is HIP-4’s most distinctive feature. Recurring markets are price-based binary markets that automatically rotate on a schedule — every 15 minutes, every hour, or every day.

Take the “BTC > $95k” daily recurring market. Every day at midnight UTC, the current market resolves against the oracle price, payouts settle instantly, and a new market opens with an updated strike price based on the current spot price. You do not need to find a new market each day. The protocol handles rotation automatically.

Think of it like an automatically rolling options chain, except with no expiration management, no strike selection complexity, and no premium decay to worry about. Just a clean yes/no on where price closes.

The testnet hosts active recurring markets right now, including “HL 100 meter dash” — a fun community market where Hypurr races Usain Bolt, with Hypurr heavily favored at $0.77.

Minting and settlement mechanics

How shares are created

When someone wants to buy YES and someone else wants NO, the system mints a complete set. The buyer pays, say, $0.68 for YES and the seller pays $0.32 for NO. The combined $1.00 is fully collateralized — it sits on-chain until the market resolves.

This minting process means there is no counterparty risk on collateral. Every dollar committed to the market exists on-chain, verifiable by anyone. No fractional reserves, no rehypothecation, no trust assumptions.

How settlement works

Settlement on HIP-4 is atomic and instant:

1. The outcome is determined (oracle price for recurring markets, designated resolver for event markets)
2. The matching engine settles all positions in the same block
3. Winning shares receive $1, losing shares receive $0
4. USDC credits your balance immediately — no claim process, no delay

Compare this to Polymarket, where settlement depends on UMA’s Optimistic Oracle (which has a challenge period) and requires you to manually claim winnings. Or Kalshi, where settlement happens internally on a centralized ledger with no on-chain verification.

HIP-4 settlement is one block. Your balance updates. Done.

For recurring markets, the expired market settles and the new market opens in the same cycle. There is no gap where your capital is locked waiting for resolution.

Shared margin: the feature that changes everything

Here is the detail that separates HIP-4 from every other prediction market, and most people miss it entirely.

On Hyperliquid, your USDC collateral is unified across all asset classes. The same balance that backs your ETH perpetual position also backs your prediction market positions and your spot holdings. This is cross-margin across asset types.

Why does this matter so much?

On Polymarket, your $50,000 in prediction market positions is completely siloed capital. It cannot back anything else. It sits there until markets resolve — potentially for months.

On Hyperliquid with HIP-4, that same $50,000 could simultaneously:

• Back leveraged perp positions
• Collateralize multiple prediction market bets
• Serve as margin for spot trading
• Earn potential yield through Hyperliquid’s margin efficiency

For institutional traders and market makers, shared margin is not a nice-to-have — it is the deciding factor. Capital efficiency directly translates to tighter spreads and deeper liquidity. This is why HIP-4 prediction markets will structurally attract better pricing than standalone platforms.

According to Hyperliquid’s own data, the platform handles $200B+ in monthly perp volume. Prediction markets tap into that same capital pool on day one.

Low-cost, high-performance trading

HIP-4 prediction markets benefit from running on existing Hyperliquid infrastructure rather than standalone servers. Because prediction markets share the same matching engine as perps and spot, the marginal cost of operating them is minimal — and that translates to lower costs for traders compared to standalone platforms.

For comparison:

• Polymarket charges 0% maker / up to 2% taker fees
• Kalshi charges variable fees ranging from 1% to 7% depending on the market
• PredictIt charged 5% on profits plus 5% on withdrawals before shutting down

Combined with shared margin and instant settlement, the total cost of trading on HIP-4 — including capital lockup and opportunity cost — is structurally lower than alternatives.

Purrdict vs Polymarket vs Kalshi: full comparison

Here is how the three major prediction market platforms compare across every dimension that matters.

When to use each platform

Purrdict is best if you are crypto-native, value on-chain transparency, want shared margin with your perp and spot positions, or already trade on Hyperliquid. The technical architecture is superior — the question is market catalog depth, which is expanding.

Polymarket is best if you want the widest market selection today and the deepest liquidity. It is the incumbent with the largest user base and the most active markets. The trade-off is centralized matching, fees, and siloed capital.

Kalshi is best if you are a US trader who needs CFTC-regulated event contracts, prefer USD bank deposits, or want economic/weather markets that do not exist on crypto platforms.

How prediction markets on Hyperliquid compare to perpetual futures

This is a question that comes up frequently, especially from existing Hyperliquid traders.

Perpetual futures give you continuous price exposure with leverage. If BTC is at $95,000 and you go 10x long, a 1% move gives you 10% returns (or losses). Funding rates keep the perp price anchored to spot. Liquidation is a real risk.

HIP-4 prediction markets give you binary outcome exposure with no leverage. If you buy “BTC > $95k” at $0.68, you are betting on a specific outcome with a defined max profit ($0.32) and defined max loss ($0.68). No liquidation, no funding rates, no margin management.

The two products serve different purposes:

• Perps: continuous directional exposure with leverage
• Prediction markets: bounded outcome bets with defined risk

But because they share margin on Hyperliquid, they complement each other. You could run a leveraged ETH perp position while simultaneously holding prediction market positions — using the same capital base for both.

Real markets you can trade today

HIP-4 is live on Hyperliquid’s testnet, and Purrdict provides the front-end interface. Here are some of the active markets:

• “Will BTC close above $95,000 today?” — Recurring daily binary. YES at ~$0.68, implying a 68% probability.
• “What will Hypurr eat?” — Multi-outcome with Akami ($0.42), Otoro ($0.25), Canned Tuna ($0.18), and others.
• “HL 100 meter dash” — Hypurr vs Usain Bolt, with Hypurr at $0.77. A community-driven fun market that shows the flexibility of HIP-4.

These are real order books with real fills. You can connect a testnet wallet, get free testnet USDC, and start trading in under a minute.

The broader prediction market industry

For context on where HIP-4 fits in the market.

Prediction market trading volume exceeded $44 billion in 2025 — a 10x increase from 2024. Polymarket accounted for $21.5 billion, Kalshi for $17.1 billion, with the rest split among smaller platforms. The 2024 US presidential election was the catalyst, with Polymarket alone processing over $3.5 billion in election-related bets.

But here is the structural issue: almost all of that volume ran through platforms with significant technical limitations. Off-chain matching, siloed capital, centralized dependencies. HIP-4 is the first protocol to run prediction markets on infrastructure that was already battle-tested at scale for derivatives trading.

The prediction market industry is expected to continue growing as more event types become tradeable and regulatory clarity improves. Platforms that offer the fastest settlement, best capital efficiency, and deepest liquidity will capture the majority of that growth.

Getting started with prediction markets on Hyperliquid

Trading prediction markets on Hyperliquid through Purrdict takes about two minutes:

1. Connect your wallet — MetaMask, Rabby, or any WalletConnect-compatible wallet
2. Get testnet USDC — The testnet faucet gives you free USDC to trade with
3. Browse markets — See all active binary, multi-outcome, and recurring markets
4. Buy shares — Pick YES or NO (or any outcome in multi-outcome markets), enter your amount, and confirm
5. Wait for resolution — When the market resolves, winning shares automatically pay $1 to your balance
6. Trade anytime — You do not have to hold until resolution. Sell your position on the open market whenever you want

The agent key system means you approve your wallet once, then every subsequent trade is a single click. No MetaMask popup on every order.

For a deeper walkthrough, see our guide on how to trade prediction markets.

Frequently asked questions

What is HIP-4 on Hyperliquid?

HIP-4 is a Hyperliquid Improvement Proposal that adds prediction markets (called “outcome trading”) to Hyperliquid’s L1 blockchain. It enables fully on-chain binary, multi-outcome, and recurring prediction markets that share the same matching engine, settlement layer, and margin system as Hyperliquid’s perpetual futures and spot markets. For more technical details, read our HIP-4 explainer.

Are prediction markets on Hyperliquid cheaper to trade than alternatives?

HIP-4 prediction markets benefit from Hyperliquid’s shared infrastructure, which keeps trading costs low compared to standalone platforms like Polymarket (up to 2% taker fees) and Kalshi (1-7% variable fees). Combined with shared margin and instant settlement, the total cost of participation is significantly lower. Read more about the cost advantage of HIP-4 prediction markets.

How is Purrdict different from Polymarket?

Purrdict is built on Hyperliquid’s HIP-4 protocol with fully on-chain order matching and settlement. Polymarket uses off-chain order matching with on-chain settlement on Polygon. Key differences: Purrdict offers sub-second settlement, shared margin with perps and spot, fully on-chain orderbooks, and true self-custody. Polymarket currently has deeper liquidity and a wider market selection. See our full Purrdict vs Polymarket comparison.

Can I get liquidated on a prediction market?

No. HIP-4 prediction markets are fully collateralized. Your maximum loss is the price you paid for your shares. If you buy YES at $0.70, the most you can lose is $0.70 per share. There are no margin calls, no liquidation events, and no funding rates. This makes prediction markets structurally safer than leveraged perps.

What happens when a prediction market resolves?

When a HIP-4 market resolves, settlement is atomic and instant. Winning shares pay $1, losing shares pay $0, and USDC credits your balance in the same block. There is no claim process and no delay. For recurring markets, the resolved market settles and a new market opens in the same cycle.

Do I need KYC to trade on Purrdict?

No. Purrdict is permissionless and accessible through any compatible Web3 wallet. There is no KYC, no account registration, and no geographic restriction. This contrasts with Kalshi, which requires full KYC as a CFTC-regulated exchange, and Polymarket, which blocks US-based users.

What comes next

HIP-4 is live on testnet today. Mainnet launch will bring real-money markets, deeper liquidity from Hyperliquid’s existing user base, and new market types as the protocol matures.

The prediction market space grew 10x in 2025. The platforms that win the next phase will be the ones with the best infrastructure — fastest settlement, deepest liquidity through shared margin, and the widest variety of tradeable events.

HIP-4 on Hyperliquid checks every technical box. Purrdict is the front-end that makes it accessible. Start trading on testnet today — it costs nothing and takes two minutes to set up.

Learn more: What are prediction markets? · How to trade prediction markets · What is USDH? · Purrdict vs Polymarket