Outcome Markets takes the lead on HIP-4 prediction markets with Hydromancer

Client

Outcome is an onchain prediction market on Hyperliquid, built on top of the HIP-4 primitive. Outcome is a leading frontend for prediction markets on Hyperliquid, with an overwhelming share of trading volume across all third-party apps. Outcome also has 500k HYPE ready to deploy its own markets whenever this functionality becomes available.

Why Hydromancer?

Outcome needed a full data layer for a market type that didn't exist yet. HIP-4 was still rolling out on testnet, with shifting specs and unreleased endpoints, while Outcome had to build, test, and ship a production frontend on top of it. Hydromancer delivered outcome-market APIs and streams as the protocol itself evolved — adding multi-outcome support and data streams within days of the protocol change.

Solution

Hydromancer powers Outcome's outcome-markets data end to end — both the real-time streams behind the product and the analytics layer behind the business. On the streaming side, Outcome runs on filtered outcome-fills subscriptions, builder-attributed fills, orders, and positions, and low-latency orderbook streaming benchmarked to be faster than native Hyperliquid websockets. On the analytics side, a builder-analytics dashboard suite let Outcome migrate its builder-code volume tracking and other dashboards onto Hydromancer's infrastructure, on top of the real-time position-to-builder attribution that makes it possible.

Results

• ✓Hydromancer delivered a supporting data and tech stack ahead of HIP-4 mainnet launch, helping Outcome take the trading volume lead across all frontends
• ✓Same-day delivery of requested features like the filtered-fills stream; multi-outcome support within days of release

What's next for Outcome

Outcome stakes 500k HYPE with Hydromancer's own validator to start listing HIP-4 markets the moment Hyperliquid core teams make that possible. The Hydromancer team will be there to support new market deployment with leading risk and liquidity monitoring infrastructure.