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Hyperliquid Outcome Markets (HIP-4): Prediction-Style Trading

All mechanics on this page were verified against Hyperliquid's official documentation on 2026-07-21. Details the docs don't state are flagged as unverified rather than filled in.

Outcome markets are Hyperliquid's newest contract type — defined by HIP-4, the proposal that followed HIP-3's builder-deployed perps. They are prediction-market-style instruments: instead of tracking a price continuously the way a perp does, an outcome contract asks a question with a fixed resolution — and settles once, at a known time, to one side or the other.

What an Outcome Contract Is

Hyperliquid's docs define outcomes as "fully collateralized contracts that settle within a fixed range" and describe HIP-4 as "a general-purpose primitive that is useful for applications such as prediction markets and bounded options-like instruments." In the binary case — the form live today — you buy either the Yes side or the No side of a stated proposition. At settlement, the correct side converts to the full unit of collateral and the incorrect side to zero: priced between 0 and 1 while trading, worth exactly 1 or 0 when resolved.

"Fully collateralized" is the structural difference from everything else on this site: positions are backed in full, and per the official docs, outcome trading "does not involve leverage or liquidations." There is also no funding — funding exists to anchor perpetuals that never expire, and outcomes expire by design. If you've read our perpetuals explainer, the contrast is clean: an outcome position can't be liquidated, costs nothing to hold, and the most it can lose is what you paid for it.

One Book, Two Sides

A design detail worth understanding before trading: the Yes and No order books for the same outcome are merged. Per the docs, "an order to buy Yes at price p is equivalent to an order to sell No at price 1-p" — so both sides share one pool of liquidity, and the Yes price plus the No price always describes the same market. The price of Yes reads naturally as the market's implied probability of the event.

The docs also define "Questions": collections of outcomes where exactly one settles Yes and the rest settle No. Multi-outcome markets are documented as "not part of the initial mainnet release," with features rolling out in stages — so expect binary markets first.

How Settlement Works

The first live market type is a recurring binary outcome that, per the docs, "settles daily at 06:00 UTC to the BTC mark price on HyperCore mark prices" — a daily will-BTC-be-above-this-price question. Resolution for these price markets is mechanical, not human-judged: the settlement price is computed by interpolating the platform's own mark-price feed at the settlement timestamp, and the contract settles Yes if that value is at or above the target. Recurring outcomes are "automatically deployed and settled by the protocol on a fixed cadence" — no market creator decides the result.

That's a meaningful trust property, and also a scope limit: what's documented today covers price-based questions resolved by the platform's price feed. How Hyperliquid would resolve non-price questions — elections, sports, real-world events — is not described in the current official documentation, so we're not going to speculate.

Fees

Per the official fee docs, fees are "currently zero for outcome markets for initial testing." When charged, outcome-market fees apply only when closing or settling a position, not when opening one, and outcome trading doesn't pay maker rebates — users who'd earn rebates on perps or spot pay zero on maker orders instead. "Currently" is doing real work in that sentence: treat zero fees as a testing-phase state, not a permanent feature.

What We Couldn't Verify

Two things widely reported elsewhere are absent from the official docs, so we won't state them as fact. First, a launch date: the docs describe the initial mainnet release but carry no calendar date. Second, deployment mechanics: press coverage has described staking thresholds and validator-controlled templates for third-party outcome deployment, but the official documentation we verified describes only protocol-deployed recurring outcomes — nothing about who else can create markets or under what requirements. If that changes in the docs, this page will be updated.

Where to Find Them, and What to Read Next

Outcome markets have their own section in the Hyperliquid app — an "Outcomes" tab sits in the main navigation alongside Trade and Vaults (observed in the live app on 2026-07-21). For the venue itself, start with our Hyperliquid review and how-to-start guide.

Outcome markets are Hyperliquid's entry into territory that prediction-market platforms have occupied for years — and the wider prediction-market world, including the regulated exchanges that dominate it, is its own subject. Our sister site PredictorHQ covers that landscape — how prediction markets work, who the platforms are, and how the regulated venues compare — and is the right starting point for prediction markets as an asset class rather than as one venue's feature.

Frequently Asked Questions

Can I be liquidated on an outcome position?

No. Per the official docs, outcome trading doesn't involve leverage or liquidations — positions are fully collateralized. The maximum loss is the amount you paid for your side of the contract, realized if it settles against you.

Is this the same as betting on Polymarket or Kalshi?

The instrument shape is similar — binary contracts that settle 1 or 0 — but what's documented on Hyperliquid today is narrower: recurring price-based questions settled automatically by the platform's own price feed, traded from a self-custody wallet. The broader comparison across prediction-market platforms is PredictorHQ's territory.

Do outcome positions cost anything to hold?

No funding applies — that's a perp mechanism. Fees are currently zero during initial testing, and when charged they apply at close or settlement, not at open, per the official fee schedule.