Prediction Market Arbitrage: Five Live Opportunitie…

Our proprietary cross-venue engine at StartupHub.ai has surfaced five live prediction market arbitrage opportunities as of July 26, 2026. These opportunities involve the same real-world event being priced on different prediction markets, specifically Polymarket, Kalshi/Robinhood, and PredictIt.

An arbitrage lock occurs when buying a 'YES' contract on one venue and a 'NO' contract for the same event on another venue costs less than $1 combined, guaranteeing a profit regardless of the outcome. It is crucial to remember that spreads can close quickly, and fees, KYC requirements, and withdrawal limits may impact actual returns. This information is for educational purposes only and is not financial advice.

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: 19.0% ROI, locks 16c per $1. Buy YES on Kalshi / Robinhood at 15c, buy NO on PredictIt at 69c.
Who will be the next Supreme Court justice? Will Emil Bove become the next Justice on the Supreme Court?. Arbitrage: 6.6% ROI, locks 6c per $1. Buy YES on Kalshi / Robinhood at 5c, buy NO on PredictIt at 89c.
2028 Democratic VP nominee Will Josh Shapiro be the nominee for the Vice Presidency for the Democratic party?. Arbitrage: 4.1% ROI, locks 4c per $1. Buy YES on Kalshi / Robinhood at 4c, buy NO on PredictIt at 92c.
Who will win the 2028 US presidential election?, Gavin Newsom. Arbitrage: 3.6% ROI, locks 3c per $1. Buy YES on Polymarket at 13c, buy NO on PredictIt 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 at 18c, buy NO on PredictIt at 79c.

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.

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: Five Live Opportunities Identified July 26, 2026 (July 26, 2026)

Track these live, or poll the free API