Prediction Market Arbitrage: 13 Live Opportunities…

StartupHub.ai's proprietary cross-venue engine has surfaced 16 prediction market arbitrage opportunities as of August 7, 2026. These opportunities arise when the 'YES' price on one venue and the 'NO' price on another for the same real-world event sum to less than $1, allowing for a guaranteed profit regardless of the outcome.

Thirteen of these spreads are live right now, offering immediate potential for traders. The remaining three were observed within the last few hours and may have already closed due to rapid market movements. It is crucial to remember that spreads can close quickly, and fees, KYC requirements, and withdrawal limits can impact actual returns.

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

Where will Putin and Zelenskyy next meet? Will Putin and Zelenskyy meet next in Switzerland?. Arbitrage: 16.3% ROI, locks 14c per $1. Buy YES on Polymarket at 3c, buy NO on Kalshi / Robinhood at 83c.
Will Rubio and Vance both announce a run for President before 2028?. Arbitrage: 12.4% ROI, locks 11c per $1. Buy YES on Kalshi / Robinhood at 34c, buy NO on PredictIt at 55c.
Who will leave Trump's Cabinet next? Will Robert F. Kennedy Jr. be the next person to leave the Trump Cabinet?. Arbitrage: 11.7% ROI, locks 10c per $1. Buy YES on Kalshi / Robinhood at 19c, buy NO on Polymarket at 71c.
Who will leave Trump's Cabinet next? Will Pete Hegseth be the next person to leave the Trump Cabinet?. Arbitrage: 9.3% ROI, locks 8c per $1. Buy YES on Kalshi / Robinhood at 13c, buy NO on Polymarket at 79c.
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: 6.4% ROI, locks 6c per $1. Buy YES on PredictIt at 9c, buy NO on Kalshi / Robinhood at 85c.
Who will be elected Los Angeles mayor in 2026?, Nithya Raman. Arbitrage: 6.3% ROI, locks 6c per $1. Buy YES on Polymarket at 31c, buy NO on PredictIt at 63c.
Who will win the next French presidential election?, Gérald Darmanin. Arbitrage: 4.9% 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 be elected Los Angeles mayor in 2026?, Karen Bass. Arbitrage: 3.6% ROI, locks 4c per $1. Buy YES on PredictIt at 62c, buy NO on Polymarket at 35c.

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: 13 Live Opportunities on August 7, 2026

Track these live, or poll the free API