Arbitrage Alert: Prediction Markets Offer Live Oppo…

StartupHub.ai's proprietary cross-venue engine has detected six prediction market arbitrage opportunities as of July 22, 2026. An arbitrage lock occurs when buying 'YES' on one market and 'NO' on an identical market on another venue costs less than $1 total, guaranteeing a profit regardless of the outcome.

Five of these opportunities are currently live, offering immediate potential for guaranteed returns. Spreads in these markets can close rapidly, and potential profits can be affected by fees, KYC requirements, and withdrawal limits across platforms. 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.

Will Alexandria Ocasio-Cortez win the 2028 Democratic presidential nomination?. Arbitrage: 51.5% ROI, locks 34c per $1. Buy YES on PredictIt at 13c, buy NO on Kalshi / Robinhood at 53c.
Who will be the next Supreme Court justice? Will Emil Bove become the next Justice on the Supreme Court?. Arbitrage: 6.2% ROI, locks 6c per $1. Buy YES on Kalshi / Robinhood at 5c, buy NO on PredictIt at 89c.
Who will win the 2028 US presidential election?, Gavin Newsom. Arbitrage: 4.2% ROI, locks 4c per $1. Buy YES on Polymarket at 13c, buy NO on PredictIt at 83c.
2028 Democratic presidential nominee Will Rahm Emanuel be the Democratic Presidential nominee in 2028?. Arbitrage: 3.1% ROI, locks 3c per $1. Buy YES on Polymarket at 2c, buy NO on Kalshi / Robinhood at 95c.
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.
Who will be the Prime Minister of Israel after the 2026 election?, Benjamin Netanyahu. Combined cost 108c (no lock right now). Buy YES on PredictIt at 65c, buy NO on Kalshi / Robinhood at 43c.

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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Arbitrage Alert: Prediction Markets Offer Live Opportunities on 2028 Presidential Race, SCOTUS (July 22, 2026)

Track these live, or poll the free API