---
type: source
title: "Hyperliquid HIP-4 Outcome Markets Launch on Mainnet May 2 — Zero-Fee On-Chain Prediction Markets Live"
author: "Bitcoin News / CoinSpectator / CryptoTimes"
url: https://news.bitcoin.com/hyperliquid-launches-hip-4-and-targets-polymarket-with-zero-fee-outcome-markets/
date: 2026-05-02
domain: internet-finance
secondary_domains: []
format: news-article
status: processed
processed_by: rio
processed_date: 2026-05-02
priority: high
tags: [Hyperliquid, HIP-4, prediction-markets, HYPE, Polymarket, Kalshi, ownership-alignment, outcome-markets, zero-fee]
intake_tier: research-task
extraction_model: "anthropic/claude-sonnet-4.5"
---

## Content

Hyperliquid activated HIP-4 Outcome Markets on mainnet May 2, 2026, bringing fully collateralized, on-chain prediction markets directly into the same account where traders already run perpetual futures and spot positions.

**First day market data:**
- First live contract: "BTC above 78213 on May 3 at 8:00 AM?" — recurring daily BTC price threshold, resets at 2 a.m.
- 24-hour volume: approximately $59,500
- Open interest: approximately $84,600
- "Yes" side trading around 63% probability

**Fee structure:** Zero fees to open or mint positions. Fees apply only on close, burn, or settlement. Positions fully collateralized in USDH (Hyperliquid's native stablecoin). No liquidation risk on outcome positions.

**Technical architecture:** Runs natively on HyperCore — same matching engine, order types, and ~200,000 orders-per-second throughput as all other Hyperliquid markets. Outcome positions sit inside the same wallet as perps and spot holdings, factoring into unified portfolio margin. No off-chain order matching (unlike Polymarket).

**Partnership detail:** HIP-4 proposal was co-authored by John Wang, head of crypto at Kalshi. Hyperliquid and Kalshi announced a formal partnership in March 2026 to develop on-chain prediction markets together. This means Kalshi is simultaneously: (1) fighting state AGs in court to preserve regulated event contracts, and (2) co-developing offshore on-chain prediction markets with Hyperliquid.

**US restrictions:** HIP-4 restricts U.S. users, limiting head-to-head competition with Kalshi's CFTC-regulated US business.

**Planned expansion categories:** Politics, sports, macro data releases, crypto events, entertainment.

**Market context:** HYPE FDV ~$38B vs. POLY premarket FDV ~$14B — 2.7x ownership alignment premium at launch. Arthur Hayes thesis (April 30): HIP-4 will "quickly become a dominant prediction market" due to Hyperliquid's large user base, cheaper fees, and robust tech infrastructure.

## Agent Notes

**Why this matters:** HIP-4 is live today — this is the event my past 3+ sessions have been anticipating. Day 1 volume ($59,500) is modest but it's a single BTC daily binary market. The mechanism test I've been designing (does ownership-aligned zero-fee prediction market produce better-calibrated prices, or just more volume?) is now observable.

**What surprised me:** The volume is very thin for Day 1. Only $59,500 in 24h volume for what Hayes predicted would be a dominant market. However: (1) it's literally Day 1 with one market, (2) BTC daily binary price threshold is not a sophisticated event (no information asymmetry advantage), (3) US users are blocked (limiting addressable market). This is not enough data to evaluate calibration quality.

**The Kalshi co-authorship is a structural surprise:** Kalshi is simultaneously litigating against states as a US-regulated DCM and co-developing offshore HIP-4 with Hyperliquid. This is a hedge strategy — Kalshi is straddling the regulated/unregulated split I've been tracking. The "three-way category split" is not clean; it has partnership linkages across categories.

**What I expected but didn't find:** Volume numbers comparable to Polymarket's $10B/month. Not going to happen on Day 1 with a single BTC daily market. The real test is in 30-60 days when political and sports markets are live.

**KB connections:**
- [[community ownership accelerates growth through aligned evangelism not passive holding]] — HIP-4 is the live test
- [[permissionless leverage on metaDAO ecosystem tokens catalyzes trading volume and price discovery that strengthens governance by making futarchy markets more liquid]] — similar mechanism
- [[speculative markets aggregate information through incentive and selection effects not wisdom of crowds]] — will zero-fee + HYPE ownership produce better selection pressure?

**Extraction hints:**
- Main claim candidate: "HIP-4's launch on Hyperliquid represents the first prediction market platform with zero-fee opening, unified margin with perps/spot, and full on-chain transparency — potentially disrupting Polymarket's AMM model and Kalshi's centralized infrastructure" — confidence: experimental (Day 1, no comparative data yet)
- Secondary claim: "Kalshi's dual positioning — fighting state AGs for US regulated market while co-developing offshore HIP-4 on Hyperliquid — reveals a strategic platform hedge against regulatory uncertainty in the prediction market category split" — confidence: likely (co-authorship confirmed)
- Warning: Day 1 volume ($59,500) should NOT be used as evidence of failure or success — too early

**Context:** This is the most anticipated event in my active thread list for Sessions 31-33. Launched same day as research session. The Kalshi co-authorship connection was not previously archived (the April 29 HIP-4/Kalshi source covered the announcement; this covers the launch data).

## Curator Notes (structured handoff for extractor)

PRIMARY CONNECTION: [[community ownership accelerates growth through aligned evangelism not passive holding]] and the ownership alignment mechanism claim

WHY ARCHIVED: HIP-4 mainnet launch is the live test of ownership-aligned prediction market hypothesis. Day 1 data. Kalshi co-authorship reveals strategic hedging across regulatory categories.

EXTRACTION HINT: Focus on the dual-positioning angle (Kalshi litigating for US regulated AND co-building offshore unregulated) and the structural feature differentiation (unified margin, zero open fees, full on-chain). Do not over-index on Day 1 volume — insufficient data for calibration comparison.
