Bankroll management for Polymarket
Decide on a bankroll you can afford to lose, keep each position small (often 1–5%), size by edge with fractional Kelly, and watch for positions that depend on the same outcome.
Simple rules that work
- Separate money. Only deposit what you could lose entirely without it affecting your life.
- Cap each position. A few percent of bankroll per trade means one bad resolution doesn't end you.
- Size by edge. Bigger edge, bigger stake, using ¼–½ Kelly. Try the Kelly calculator.
- Count correlation. Five markets on the same election are one bet, not five.
- Keep records. Track entry, exit, fees and your estimated probability so you can see whether your edge is real.
Avoid chasing losses
Doubling up after a loss is the fastest way to lose a bankroll. If you notice you are trading to win back money, stop. If trading starts to feel compulsive, talk to a local problem-gambling support service.
Ready to try it? Check it is available where you live, then open Polymarket.
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