7 min read · Updated June 2026
How to make money on Kalshi
Key takeaways
- › Cross-venue arbitrage (Kalshi ↔ Polymarket) is the most reliable edge.
- › Niche expertise (weather, local elections) outperforms generalist guessing.
- › Risk 1–3% of bankroll per market — even big favorites lose.
- › Track expected value, not win rate.
- › Most traders lose. This is real-money trading, not entertainment.
Strategy 1: Cross-venue arbitrage
The same event often trades on both Kalshi and Polymarket. When the prices diverge by more than total fees and gas, you can buy YES on the cheaper side and YES (or sell YES) on the more expensive side and lock in profit at settlement.
Example: Spain to win World Cup quotes $0.18 on Kalshi and $0.22 on Polymarket. Buy YES at $0.18, sell YES at $0.22 → $0.04 guaranteed less fees.
Strategy 2: Niche edges
The crowd mispriced weather and small local political races repeatedly through 2025. If you genuinely know a domain — hurricane forecasting, your state legislature — Kalshi's order books are thin enough for retail-size edge.
Strategy 3: Expected-value sizing
EV = (probability × payoff) − (probability of loss × stake). If your true probability estimate exceeds the market's implied probability by enough to cover fees plus a margin of error, the trade has positive EV. Size with a fractional Kelly to survive variance.
What loses money fast
- Going all-in on a single political market because you're emotionally invested.
- Chasing losses with bigger positions.
- Trading thin markets with wide spreads.
- Ignoring fees on small, frequent trades.
Start trading in 2 minutes
Both platforms are free to sign up. Kalshi is CFTC-regulated USD. Polymarket settles in USDC.
Play responsibly
Prediction markets are real-money trading and you can lose your full stake. We recommend 21+. If trading stops feeling fun, call 1-800-GAMBLER or text 988.