Prediction market arbitrage scanner

Prediction Market Arbitrage Scanner

Find live prediction-market arbitrage opportunities across Polymarket, Kalshi, Predict.fun, Opinion, Probable, Limitless, and Stake with Oxygen Delta.

Open live scanner Polymarket intelligence

Live Arbitrage Opportunities

Event Buy side A Buy side B Combined cost Estimated edge
Live prediction-market event Polymarket YES Partner venue NO loaded in app ranked by net edge
Cross-market sports or politics event Kalshi or Polymarket leg Predict.fun, Opinion, Stake, or other leg after fees requires review
Crypto, macro, or news market best visible YES price best visible NO price depth checked candidate spread

Signal Quality

Fresh quotes

latest parser refresh Quotes are useful only while the compared markets are fresh.

Enough depth

$500+ review gate Displayed liquidity and depth matter more than the headline spread.

Fee-adjusted edge

net signal Oxygen Delta treats raw spread as incomplete until venue fees are considered.

Manual review

contract wording Users still need to compare market rules, settlement, and timing.

How To Use The Scanner

  • Start with the highest edge, but reject markets with weak depth or unclear wording.
  • Compare YES and NO legs across venues before assuming contracts are equivalent.
  • Check execution size, fees, and freshness before opening either platform.

Supported Venues

  • Polymarket, Kalshi, Predict.fun, Opinion, Probable, Limitless, and Stake.
  • More venues can be added when parsers and matching quality are reliable enough.

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