Our proprietary cross-venue engine has once again scanned the prediction market landscape, surfacing seven distinct arbitrage opportunities as of July 14, 2026. These opportunities arise when the combined price of 'YES' on one platform and 'NO' on another for the identical real-world event totals less than $1, effectively locking in a guaranteed profit.
Six of these spreads are live right now, offering a chance to capitalize on market inefficiencies across Polymarket, Kalshi/Robinhood, and PredictIt. Spreads can close rapidly as market participants react, and it's crucial to remember that fees, KYC requirements, and withdrawal limits can impact actual returns. This information is for informational purposes only and does not constitute financial advice.
Track these live, or poll the free API
The board above refreshes on its own, so this page stays current long after today. The full cross-venue feed lives on the arbitrage board, and every match is also a free JSON API and an MCP tool, so a trading agent can poll live Polymarket, Kalshi and PredictIt arbitrage opportunities and act on them.
curl https://www.startuphub.ai/api/v1/arbitrage?arbs_only=1Read the arbitrage API reference or open the live JSON endpoint.
Informational feed, not financial advice. Live arbitrages are often fleeting, and fees, gas, KYC and withdrawal limits eat into the spread. Verify each market’s resolution rules and costs before trading.