A Rust trading bot for Polymarket, 800µs decision loop
A Rust-based arbitrage trading bot for the Polymarket prediction market platform achieves an 800-microsecond decision loop, enabling high-speed trading strategies.
Background
- Polymarket is a decentralized prediction-market platform where users bet on the outcomes of real-world events (elections, sports, crypto prices, etc.) using cryptocurrency. Orders are matched on-chain and off-chain via a CLOB (central limit order book).
- This GitHub repo is a Rust-based arbitrage bot that constantly monitors Polymarket's order books for price discrepancies between related markets — for example, "Yes" on one event being priced differently than "No" on its complement, or the same event traded on different CLOB endpoints.
- The headline claim is an 800-microsecond decision loop — meaning the bot can scan markets, calculate arbitrage opportunities, and place orders in under a millisecond. That matters because prediction-market arbitrage windows are extremely narrow; speed is the moat.
- The repo is notable because most Polymarket bots are written in Python or TypeScript; using Rust (a systems language) and a sub-millisecond loop signals a serious focus on latency and edge in capturing inefficiencies before other bots do.