Cross-Venue Arbitrage — Lock Profit Across Polymarket, Kalshi & SX Bet
The same game is priced on Polymarket, Kalshi, SX Bet, Azuro and Limitless — and the prices disagree. When the cheapest price per outcome across venues sums to less than 1 (after fees), backing every outcome locks guaranteed profit at resolution. WhalesInsider scans all five venues continuously and ranks each arb by net ROI.
One event, several venues, one mispricing. The scanner aligns the same outcomes across books and buys the cheapest leg on each venue.
✓Buy each outcome on whichever venue is cheapest after fees — the sum stays under $1
✓ROI is shown NET of each venue’s trading fee (Kalshi fee modelled per contract; Polymarket/SX/Azuro/Limitless at their real rates)
✓Max fillable stake per arb from live order-book depth — no overstated size
✓2-way (UFC, tennis, US moneylines), 3-way soccer with draw, and esports all supported
Why it beats single-venue “sure bets”
Within one book, mispricings are rare and thin. Across venues they appear constantly because each book moves on its own flow — a whale hits Polymarket while Kalshi lags, and the gap is the edge.
✓Best price per outcome is chosen by effective (after-fee) cost, not the raw quote
✓Completeness + sanity guards filter stale/one-sided quotes so phantom arbs don’t show
✓Crypto up/down and above/below arbs alert in real time via Telegram
Arbitrage + whale flow together
Arbitrage is math-driven locked ROI; whale bets are directional flow. Sharp bettors run both — arb for guaranteed return, whales for edge when you lack a model.
✓Verify each leg’s ask price and depth on its venue before executing
✓Prices move fast on in-play games — the scanner streams live (WebSocket + push)
✓Free shows the game, venues and edge %; Premium shows every leg, stake split and links
Live arbitrage
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FAQ
Is cross-venue arbitrage risk-free?▼
It’s a guaranteed profit only if you fill EVERY outcome at the quoted prices before they move, on venues whose resolution rules match. Execution slippage, thin depth or rule differences carry risk — always verify each leg first.
Which venues are covered?▼
Polymarket, Kalshi, SX Bet, Azuro and Limitless. The scanner aligns the same event across them and computes the arb on after-fee prices.
Do you account for fees?▼
Yes — the headline ROI is net of venue fees. Kalshi’s per-contract fee is modelled; the best venue per outcome is picked by after-fee cost, so a cheap-looking fee-laden leg never wins over a fee-free one.
Why are full legs Premium-only?▼
The exact legs, stake split and one-click links are the actionable signal — gated to Premium. Free users still see the game, the venues involved and the net edge %.