Improving capital efficiency for parlays on PMs

Eric Liu shows how prediction markets can reduce parlay collateral requirements by 10-70% depending on portfolio composition using Integer Linear Programming, which identifies the worst-case loss scenario across correlated markets instead of collateralizing each bet in isolation. MMs currently reserve capital for impossible outcome combinations—like BTC closing both above and below $100K simultaneously—but ILP solves this by finding the actual maximum loss across all possible market resolutions in milliseconds. The result tightens quotes and enables deeper liquidity without sacrificing the fully-collateralized guarantees peer-to-peer settlement requires.