HIP-4 explainer

What Is HIP-4? Hyperliquid Outcome Markets Explained

HIP-4 brings outcome-market primitives to Hyperliquid. Searchers often compare it with Polymarket, but the key idea is a bounded payoff contract that settles based on a defined outcome.

Last updated: 2026-06-02Last reviewed: 2026-08-20
Product boundary
Outcome markets can look like options or prediction markets, but the exact payoff, collateral, settlement source, and market rules decide the real risk.

Direct answer

HIP-4 is Hyperliquid's outcome-market framework. Instead of a perpetual contract with funding and liquidation mechanics, an outcome market is built around a defined event or condition and a bounded payoff. It can resemble a prediction market in search results, but the contract rules, settlement source, collateral, and venue access decide the actual risk.

What makes outcomes different

  • The payoff is bounded by the contract terms.
  • There is usually a defined expiry or settlement event.
  • The market price can be read as an implied probability only after considering fees, spreads, and settlement risk.
  • There is no simple one-to-one mapping between outcome markets and vanilla options.

Live HIP-4 contract board

Public Hyperliquid contract metadata and raw Yes/No side mids. A side mid is a market price, not a verified probability or forecast.

Active contracts
307
Standalone
168
Grouped questions
30
Quote
USDC

Resolution rules require a separate check

The public response currently provides class, target or thresholds, expiry, side labels, and mids for 307 contracts, but not the full oracle and comparison rule. HypeBasis shows those raw fields while withholding verified-probability labels and contract-specific EV links.

Standalone binary contracts

Each row uses the target, expiry, side labels, and mids returned for the current contract id.

template:binaryPrice
#20835 · USDC · Not supplied
template:Yes mid
0.4913
template:No mid
0.5087
Contract definition
Settlement question incomplete

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. template:Yes mid moved from 0.4913 to 0.4913 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

template:binaryPrice
#25337 · USDC · Not supplied
template:Yes mid
0.4942
template:No mid
0.5058
Contract definition
Settlement question incomplete

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. template:Yes mid moved from 0.4942 to 0.4942 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

template:binaryPrice
#23745 · USDC · Not supplied
template:Yes mid
0.1879
template:No mid
0.8121
Contract definition
Settlement question incomplete

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
+0.9 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. template:Yes mid moved from 0.1794 to 0.1879 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

template:binaryPrice
#23753 · USDC · Not supplied
template:Yes mid
0.0446
template:No mid
0.9554
Contract definition
Settlement question incomplete

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
+0.8 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. template:Yes mid moved from 0.0362 to 0.0446 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

template:priceTouch
#22102 · USDC · Not supplied
template:Yes mid
0.2182
template:No mid
0.7818
Contract definition
Settlement question incomplete

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. template:Yes mid moved from 0.2182 to 0.2182 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

template:companyIpoFirstDayMarketCap
#19821 · USDC · Not supplied
template:Yes mid
0.7524
template:No mid
0.2476
Contract definition
Settlement question incomplete

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. template:Yes mid moved from 0.7524 to 0.7524 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

template:binaryPrice
#23997 · USDC · Not supplied
template:Yes mid
0.4465
template:No mid
0.5535
Contract definition
Settlement question incomplete

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
+7.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. template:Yes mid moved from 0.3767 to 0.4465 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

template:binaryPrice
#23733 · USDC · Not supplied
template:Yes mid
0.1150
template:No mid
0.8850
Contract definition
Settlement question incomplete

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
-0.8 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. template:Yes mid moved from 0.1226 to 0.1150 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

template:binaryPrice
#20838 · USDC · Not supplied
template:Yes mid
0.5047
template:No mid
0.4953
Contract definition
Settlement question incomplete

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. template:Yes mid moved from 0.5047 to 0.5047 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

BTC target 80,371
#25660 · USDC · Nov 6, 06:00 UTC
Yes mid
0.5170
No mid
0.4830
Contract definition
BTC target 80,371 at Nov 6, 06:00 UTC

The public metadata provides the contract class, target, and expiry, but not the full oracle or comparison rule. HypeBasis shows raw side mids while withholding probability and contract-specific EV tools.

Target
80,371
Expiry
Nov 6, 06:00 UTC
Pair sum
100.0%
Side-price change
+2.2 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. Yes mid moved from 0.4951 to 0.5170 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

Grouped question #579

template:sportsContestResult

4 linked contracts
0 settled named outcomes
Expiry
Not supplied
Thresholds
Not supplied
Class
Not supplied

Threshold order and linked contract ids come from the public question record. Range labels and the fallback resolution rule are not inferred.

Named outcome 1
#23291 · USDC · Not supplied
Yes mid
0.5893
No mid
0.4107
Contract definition
template:sportsContestResult, named outcome 1

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
+0.1 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. Yes mid moved from 0.5885 to 0.5893 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

Named outcome 2
#23292 · USDC · Not supplied
Yes mid
0.2145
No mid
0.7855
Contract definition
template:sportsContestResult, named outcome 2

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
-0.1 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. Yes mid moved from 0.2154 to 0.2145 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

Named outcome 3
#23293 · USDC · Not supplied
Yes mid
0.1941
No mid
0.8059
Contract definition
template:sportsContestResult, named outcome 3

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. Yes mid moved from 0.1944 to 0.1941 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

Fallback outcome
#23290 · USDC · Not supplied
Yes mid
0.5000
No mid
0.5000
Contract definition
template:sportsContestResult, fallback outcome

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. Yes mid moved from 0.5000 to 0.5000 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

Grouped question #586

template:sportsContestResult

4 linked contracts
0 settled named outcomes
Expiry
Not supplied
Thresholds
Not supplied
Class
Not supplied

Threshold order and linked contract ids come from the public question record. Range labels and the fallback resolution rule are not inferred.

Named outcome 1
#24941 · USDC · Not supplied
Yes mid
0.5685
No mid
0.4315
Contract definition
template:sportsContestResult, named outcome 1

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. Yes mid moved from 0.5685 to 0.5685 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

Named outcome 2
#24942 · USDC · Not supplied
Yes mid
0.2357
No mid
0.7643
Contract definition
template:sportsContestResult, named outcome 2

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. Yes mid moved from 0.2357 to 0.2357 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

Named outcome 3
#24943 · USDC · Not supplied
Yes mid
0.1943
No mid
0.8057
Contract definition
template:sportsContestResult, named outcome 3

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. Yes mid moved from 0.1943 to 0.1943 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

Fallback outcome
#24940 · USDC · Not supplied
Yes mid
0.5000
No mid
0.5000
Contract definition
template:sportsContestResult, fallback outcome

The public metadata does not provide a complete underlying, target, expiry, resolution rule. HypeBasis withholds probability tools until the contract can be explained without guessing.

Target
Not supplied
Expiry
Not supplied
Pair sum
100.0%
Side-price change
0.0 pts since earlier price

Yes and No mids sum to 100.0%, so the displayed side prices are internally close. Yes mid moved from 0.5000 to 0.5000 since 2026-11-05T09:17:58.415Z.

Live liquidity check

Inspect both outcome-token books and a 1,000 quote-token mid-notional visible-fill check before relying on the displayed mids.

Requested only when you click. No wallet connection or order is created.

The concise board starts with 10 of 168 standalone contracts and 2 of 30 grouped questions. Expand only when you need the full contract inventory.

Live data - updated 0s ago
Risk notice
Outcome markets are high-risk event contracts. A market price is not a verified probability, the full cost can be lost, and resolution, settlement, liquidity, fees, and eligibility rules may alter the real risk.

Related tools

Sources

3 references · Expand