Arbitrage on autopilot.
Everything you need to automate arbitrage and delta-neutral strategies on perps and prediction markets, without the manual work.
Polymarket
Kalshi
Opinion
Novig
What is ArbBets?
ArbBets is a prediction markets arbitrage finder that scans Polymarket, Kalshi, and Opinion for price discrepancies. We find 100+ arbitrage opportunities daily. Plans start at $59/month with API access available for automated trading.
Trade with Confidence
Prediction markets arbitrage backed by math, not gut feelings
ArbBets vs Parlays
$1000 bankroll tracked over 12 months
Trade Prediction Markets with an Edge
Real-time tools to find arbitrage and value plays across Polymarket, Kalshi, and Opinion.
Cross Markets Arbitrage
Scan Polymarket, Kalshi, and Opinion for price gaps. 100+ opportunities daily with spreads ranging from 2-8%.
Funding Rate Arbitrage
Delta-neutral funding spreads across perp DEXs. Long where funding pays longs, short where it pays shorts.
ArbBets API
Build your own AI arbitrage bot. Clean, normalized data from Polymarket and Kalshi. Automate your trades.
Liquidity Rewards Agent
Self-hostable Polymarket market-making agent. Earn liquidity rewards with your keys, your VPS, your risk limits.
Weather Edge Finder
NWS-anchored forecasts vs. market prices. Spot mispriced Kalshi and Polymarket weather markets in real time.
Sports Arbitrage
Live arbitrage across game lines and props. Lock in a margin no matter the outcome.
Prediction Markets Odds
Compare live prices across Polymarket and Kalshi side-by-side. One screener to track every market.
Last updated: August 2026
What is prediction market arbitrage?
Prediction market arbitrage buys YES on one platform and NO on another when combined prices fall below $1.00 — locking profit regardless of outcome. ArbBets scans Polymarket, Kalshi, and Opinion for 100+ fee-adjusted opportunities daily.
- Typical ROI: 1–8% per trade after Kalshi fees
- Markets monitored: 990+ matched pairs across politics, macro, and crypto
- No winner limits: peer-to-peer exchanges vs soft sportsbooks
- 2026 data: ArbBets’ Prediction Market Arbitrage Report 2026 measured a ~9.6% average arb rate across six Kalshi–Polymarket scans
Prediction market arbitrage guide → · Arbitrage bet finder → · 2026 arbitrage report →
Polymarket Kalshi arbitrage finder
Our Polymarket Kalshi arbitrage finder matches identical events across both venues, walks orderbook depth, and shows net ROI after fees — the highest-volume cross-market corridor in 2026.
- Free preview: live spreads on the Polymarket–Kalshi page, no login required
- Full demo: explore the Cross-Market Arbitrage Demo with a real historical snapshot
- Pro scanner: all three platforms plus alerts and faster refresh
- API: build bots with the arbitrage betting API
Polymarket–Kalshi arbitrage finder → · Cross-Market Arbitrage Demo → · Kalshi arbitrage calculator → · Arbitrage betting API docs → · Pricing →