# Prediction Market Arbitrage: 5 Opportunities Surfaced July 24, 2026 (July 24, 2026) _Our cross-venue engine identified 5 prediction market arbitrage opportunities today, July 24, 2026, where buying YES on one venue and NO on another for the same event totals under $1. Four of these spreads are currently live._ **Published:** 2026-07-24 **Source:** https://www.startuphub.ai/ai-news/prediction-markets/2026/prediction-market-arbitrage-5-opportunities-surfaced-july-24-2026-july-24-2026 --- StartupHub.ai's proprietary cross-venue engine has surfaced five prediction market arbitrage opportunities as of July 24, 2026. These opportunities arise when the combined price of a 'YES' contract on one platform and a 'NO' contract on another for the identical real-world event totals less than $1, guaranteeing a profit. It is crucial to understand that spreads can close rapidly as market participants execute these trades. Additionally, potential profits can be impacted by platform fees, Know Your Customer (KYC) requirements, and withdrawal limits. This information is for informational purposes only and should not be considered financial advice. Arbitrage ROI by event. Who will be the Prime Minis...: ROI % 63.93. Who will be the next Suprem...: ROI % 6.38. Who will win the 2028 US pr...: ROI % 3.57. Will Kamala Harris and Gavi...: ROI % 3.09. Who will be the next Suprem...: ROI % 2.15. Cross-venue spreads on July 24, 2026. Source: StartupHub.ai arbitrage engine. **Live arbitrage right now** These update automatically. Tap a leg to open the venue. Not financial advice. - **Who will be the Prime Minister of Israel after the 2026 election?, Benjamin Netanyahu**. Arbitrage: 63.9% ROI, locks 39c per $1. Buy YES on [Kalshi / Robinhood](https://kalshi.com/markets/kxnextisraelpm) at 3c, buy NO on [PredictIt](https://www.predictit.org/markets/detail/8643/Who-will-be-the-Prime-Minister-of-Israel-after-the-2026-election) at 58c. - **Who will be the next Supreme Court justice? Will Emil Bove become the next Justice on the Supreme Court?**. Arbitrage: 6.4% ROI, locks 6c per $1. Buy YES on [Kalshi / Robinhood](https://kalshi.com/markets/kxscourt) at 5c, buy NO on [PredictIt](https://www.predictit.org/markets/detail/8246/Who-will-be-the-next-Supreme-Court-nominee) at 89c. - **Who will win the 2028 US presidential election?, Gavin Newsom**. Arbitrage: 3.6% ROI, locks 3c per $1. Buy YES on [Polymarket](https://polymarket.com/event/will-gavin-newsom-win-the-2028-us-presidential-election) at 13c, buy NO on [PredictIt](https://www.predictit.org/markets/detail/8171/Who-will-win-the-2028-US-presidential-election) at 84c. - **Will Kamala Harris and Gavin Newsom be the two frontrunners for the 2028 Democratic Presidential Nomination?**. Arbitrage: 3.1% ROI, locks 3c per $1. Buy YES on [Kalshi / Robinhood](https://kalshi.com/markets/kxpresnomd) at 18c, buy NO on [PredictIt](https://www.predictit.org/markets/detail/8153/Who-will-win-the-2028-Democratic-presidential-nomination) at 79c. - **Who will be the next Supreme Court justice? Will Ted Cruz become the next Justice on the Supreme Court?**. Combined cost 98c (no lock right now). Buy YES on [Kalshi / Robinhood](https://kalshi.com/markets/kxscourt) at 4c, buy NO on [PredictIt](https://www.predictit.org/markets/detail/8246/Who-will-be-the-next-Supreme-Court-nominee) at 94c. [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). *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.