# Prediction Market Arbitrage: 9 Opportunities Live Now, Up to 471% ROI _Our cross-venue engine has identified 9 live prediction market arbitrage opportunities, allowing for guaranteed payouts by simultaneously buying YES and NO on the same event across different platforms._ **Published:** 2026-08-12 **Source:** https://www.startuphub.ai/ai-news/prediction-markets/2026/prediction-market-arbitrage-9-opportunities-live-now-up-to-471-roi --- StartupHub.ai's proprietary cross-venue engine has surfaced nine live prediction market arbitrage opportunities as of August 12, 2026. These opportunities involve buying 'YES' on one platform and 'NO' on another for the same real-world event, with the combined cost falling below $1. This strategy locks in a guaranteed payout, regardless of the event's outcome. For newcomers, an arbitrage lock means you've bought both sides of a bet for less than the total payout, guaranteeing a profit. While these spreads offer compelling returns, it is crucial to remember that prices on prediction markets move extremely fast. Fees, KYC requirements, and withdrawal limits on individual platforms can also impact net returns. This information is for educational purposes only and is not financial advice. Arbitrage ROI by event. Where will Putin and Zelens...: ROI % 471.43. Will Trump recognize Somali...: ROI % 57.85. Who will leave Trump's Cabi...: ROI % 12.99. Where will Putin and Zelens...: ROI % 8.64. French presidential electio...: ROI % 7.35. Who will leave Trump's Cabi...: ROI % 6.38. Cross-venue spreads on August 12, 2026. Source: StartupHub.ai arbitrage engine. **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 Ukraine?**. Arbitrage: 471.4% ROI, locks 83c per $1. Buy YES on [Kalshi / Robinhood](https://kalshi.com/markets/kxputinzelenskyylocation) at 9c, buy NO on [Polymarket](https://polymarket.com/event/where-will-zelenskyy-and-putin-meet-next?via=startup-hub-ai) at 9c. - **Will Trump recognize Somaliland? :: During Trump's term**. Arbitrage: 57.9% ROI, locks 37c per $1. Buy YES on [Polymarket](https://polymarket.com/event/will-trump-recognize-somaliland-before-2027?via=startup-hub-ai) at 8c, buy NO on [Kalshi / Robinhood](https://kalshi.com/markets/kxrecogsomali) at 55c. - **Who will leave Trump's Cabinet next? Will Robert F. Kennedy Jr. be the next person to leave the Trump Cabinet?**. Arbitrage: 13.0% ROI, locks 12c per $1. Buy YES on [Kalshi / Robinhood](https://kalshi.com/markets/kxcabout) at 20c, buy NO on [Polymarket](https://polymarket.com/event/who-will-leave-trump-administration-before-2027?via=startup-hub-ai) at 69c. - **Where will Putin and Zelenskyy next meet? Will Putin and Zelenskyy meet next in Switzerland?**. Arbitrage: 8.6% ROI, locks 8c per $1. Buy YES on [Polymarket](https://polymarket.com/event/where-will-zelenskyy-and-putin-meet-next?via=startup-hub-ai) at 3c, buy NO on [Kalshi / Robinhood](https://kalshi.com/markets/kxputinzelenskyylocation) at 89c. - **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](https://polymarket.com/event/next-french-presidential-election?via=startup-hub-ai) at 0c, buy NO on [Kalshi / Robinhood](https://kalshi.com/markets/kxfrpresadvance) 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](https://www.predictit.org/markets/detail/8850/Who-will-be-the-next-Cabinet-member-to-leave-office) at 9c, buy NO on [Kalshi / Robinhood](https://kalshi.com/markets/kxcabout) at 85c. - **Who will win the next French presidential election?, Gérald Darmanin**. Arbitrage: 5.0% ROI, locks 5c per $1. Buy YES on [Polymarket](https://polymarket.com/event/next-french-presidential-election?via=startup-hub-ai) at 0c, buy NO on [PredictIt](https://www.predictit.org/markets/detail/8766/Who-will-win-the-next-French-presidential-election) at 95c. - **Who will win the 2028 US presidential election?, Gavin Newsom**. Arbitrage: 3.5% ROI, locks 3c per $1. Buy YES on [Polymarket](https://polymarket.com/event/presidential-election-winner-2028?via=startup-hub-ai) at 10c, buy NO on [PredictIt](https://www.predictit.org/markets/detail/8171/Who-will-win-the-2028-US-presidential-election) at 87c. - **Will Rubio and Vance both announce a run for President before 2028?**. Arbitrage: 3.1% ROI, locks 3c per $1. Buy YES on [Kalshi / Robinhood](https://kalshi.com/markets/kxvancerubiorun) at 42c, buy NO on [PredictIt](https://www.predictit.org/markets/detail/8640/Will-Rubio-and-Vance-both-announce-a-run-for-President-before-2028) at 55c. [See the full live arbitrage board](https://www.startuphub.ai/arbitrage) or poll the free [JSON API](https://www.startuphub.ai/api/v1/arbitrage). ## 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](https://www.startuphub.ai/arbitrage), 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](https://www.startuphub.ai/api-docs/reference/arbitrage) or open the [live JSON endpoint](https://www.startuphub.ai/api/v1/arbitrage). Focused guides: [Polymarket arbitrage](https://www.startuphub.ai/arbitrage/polymarket), [Kalshi arbitrage](https://www.startuphub.ai/arbitrage/kalshi), and the [arbitrage bot API](https://www.startuphub.ai/arbitrage/bot). *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.* --- Original analysis from [startuphub.ai](https://www.startuphub.ai), the #1 AI startup directory.