Kelly tells you how much of your bankroll to risk on each bet based on your edge.
If you think a market is at 40% but you'd price it at 55%, you have a 15pp edge.
Full Kelly maximises growth but is volatile — Half Kelly is recommended for prediction markets.
Click any bet below to auto-fill from your current positions.
YOUR EDGE—
FULL KELLY (aggressive)—
★ HALF KELLY — BET THIS—
QUARTER KELLY (conservative)—
MAX LOSS AT HALF KELLY—