Prediction Market Arbitrage: 10 Live Opportunities…

StartupHub.ai's proprietary cross-venue engine has surfaced 10 live prediction market arbitrage opportunities as of August 22, 2026. These opportunities involve buying 'YES' on one platform and 'NO' on another for the same real-world event, with the combined cost totaling less than $1. This strategy, known as an arbitrage lock, guarantees a payout of the difference per dollar invested, regardless of the event's outcome.

For newcomers, an arbitrage lock occurs when you can buy a 'YES' contract on one market and a 'NO' contract on another for the same event, and their combined price is less than $1, guaranteeing a profit. While our engine identified these 10 opportunities as live, spreads can move very quickly. Potential profits can also be impacted by fees, KYC requirements, and withdrawal limits on the respective platforms.

Live arbitrage right now These update automatically. Tap a leg to open the venue. Not financial advice.

Will Trump recognize Somaliland? :: During Trump's term. Arbitrage: 58.0% ROI, locks 37c per $1. Buy YES on Polymarket at 8c, buy NO on Kalshi / Robinhood at 55c.
Where will Putin and Zelenskyy next meet? Will Putin and Zelenskyy meet next in Switzerland?. Arbitrage: 22.6% ROI, locks 18c per $1. Buy YES on Polymarket at 1c, buy NO on Kalshi / Robinhood at 81c.
Who will leave Trump's Cabinet next? Will Pete Hegseth be the next person to leave the Trump Cabinet?. Arbitrage: 14.3% ROI, locks 13c per $1. Buy YES on Kalshi / Robinhood at 12c, buy NO on Polymarket at 76c.
French presidential election: who will advance? Will François Hollande qualify for the runoff in the 2027 French presidential election?. Arbitrage: 7.4% ROI, locks 7c per $1. Buy YES on Polymarket at 0c, buy NO on Kalshi / Robinhood at 93c.
Who will leave Trump's Cabinet next? Will Chris Wright be the next person to leave the Trump Cabinet?. Arbitrage: 5.3% ROI, locks 5c per $1. Buy YES on PredictIt at 9c, buy NO on Kalshi / Robinhood at 86c.
Who will win the next French presidential election?, Gérald Darmanin. Arbitrage: 5.1% ROI, locks 5c per $1. Buy YES on Polymarket at 0c, buy NO on PredictIt at 95c.
Where will Putin and Zelenskyy next meet? Will Putin and Zelenskyy meet next in Ukraine?. Arbitrage: 3.9% ROI, locks 4c per $1. Buy YES on Polymarket at 0c, buy NO on Kalshi / Robinhood at 96c.
Who will win the 2028 Democratic presidential nomination?, Jon Ossoff. Arbitrage: 3.3% ROI, locks 3c per $1. Buy YES on Polymarket at 15c, buy NO on PredictIt at 82c.
Who will be the next Supreme Court justice? Will Aileen Cannon become the next Justice on the Supreme Court?. Arbitrage: 3.1% ROI, locks 3c per $1. Buy YES on PredictIt at 7c, buy NO on Kalshi / Robinhood at 90c.
Who will leave Trump's Cabinet next? Will Doug Collins be the next person to leave the Trump Cabinet?. Arbitrage: 3.1% ROI, locks 3c per $1. Buy YES on Kalshi / Robinhood at 3c, buy NO on PredictIt at 94c.

See the full live arbitrage board or poll the free JSON API.

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=1

Read the arbitrage API reference or open the live JSON endpoint.

Focused guides: Polymarket arbitrage, Kalshi arbitrage, and the arbitrage bot API.

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.

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Prediction Market Arbitrage: 10 Live Opportunities Identified Today, August 22, 2026

Track these live, or poll the free API