Trading Bots·2025·Private trader

Polymarket Spread Bot

A market-making bot quoting both sides of Polymarket books while controlling inventory.

PythonPolymarketMM

tight spreads

Headline result

The challenge

The client wanted to earn the spread on liquid Polymarket markets but needed inventory control and safe behaviour as markets approached resolution.

What we built

We built a Python engine on Polymarket's CLOB API quoting both sides around fair value, skewing by inventory, widening near resolution, and flattening risk on event triggers — all monitored from a Telegram dashboard.

Results

Two-sided quoting with inventory skew
Auto-widen + flatten near resolution
Runs across many markets at once