# Hyperliquid HIP-4

**Type:** Prediction market protocol  
**Parent:** Hyperliquid  
**Status:** Testnet (as of April 2026)  
**Market Design:** Outcome contracts (event-based, settles 0 or 1)  
**Fee Structure:** Zero-fee  
**Regulatory Status:** Offshore, blocks US users  
**Key Partnership:** Kalshi market design expertise  

## Overview

Hyperliquid HIP-4 is a prediction market protocol built on Hyperliquid's infrastructure, using "outcome contracts" that settle to 0 or 1 based on event resolution. The protocol leverages Kalshi's market design expertise while maintaining Hyperliquid's zero-fee structure and offshore positioning.

## Competitive Positioning

Arthur Hayes (BitMEX co-founder, Maelstrom CIO) argued in April 2026 that HIP-4's competitive advantage comes from HYPE token ownership alignment rather than product features. Users who own HYPE can directly profit from platform activity, unlike Polymarket or Kalshi users, creating economic incentive for evangelism.

**Market Context (April 2026):**
- HYPE market cap: ~$38B FDV
- Polymarket premarket POLY: ~$14B FDV (not yet launched)
- Primary audience: Asia-focused (Polymarket faces geoblocking in several Asian countries)
- US users blocked from Hyperliquid main exchange

## Competitive Dynamics

**vs. Polymarket:**
- Hyperliquid: zero fees, HYPE token ownership model, Asia distribution
- Polymarket: established brand, POLY token not yet launched, blocks US users on main exchange

**vs. Kalshi:**
- Hyperliquid: offshore, zero fees, HYPE token ownership
- Kalshi: US-regulated, fee-based, no comparable user ownership token

## Timeline

- **2026-04-30** — Arthur Hayes published analysis arguing HIP-4 will dominate prediction markets through HYPE ownership alignment advantage

## Sources

- CoinDesk, "Hyperliquid's HYPE Token Could Be Its Prediction Market Weapon, Arthur Hayes Says", April 30, 2026