Prediction Market Arbitrage: 7 Opportunities Surfac…

Our proprietary cross-venue engine has once again scanned the prediction market landscape, surfacing seven distinct arbitrage opportunities as of July 14, 2026. These opportunities arise when the combined price of 'YES' on one platform and 'NO' on another for the identical real-world event totals less than $1, effectively locking in a guaranteed profit.

Six of these spreads are live right now, offering a chance to capitalize on market inefficiencies across Polymarket, Kalshi/Robinhood, and PredictIt. Spreads can close rapidly as market participants react, and it's crucial to remember that fees, KYC requirements, and withdrawal limits can impact actual returns. This information is for informational purposes only and does not constitute 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: 63.9% ROI, locks 39c per $1. Buy YES on PredictIt at 12c, buy NO on Kalshi / Robinhood at 49c.
Who will win the 2028 US presidential election?, Gavin Newsom. Arbitrage: 4.7% ROI, locks 4c per $1. Buy YES on Polymarket at 12c, buy NO on PredictIt at 84c.
2028 Democratic presidential nominee Will Alexandria Ocasio-Cortez be the Democratic Presidential nominee in 2028?. Arbitrage: 4.2% ROI, locks 4c per $1. Buy YES on PredictIt at 11c, buy NO on Kalshi / Robinhood at 85c.
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.
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.
2028 Democratic presidential nominee Will Mark Kelly be the Democratic Presidential nominee in 2028?. Arbitrage: 3.1% ROI, locks 3c per $1. Buy YES on Polymarket at 1c, buy NO on PredictIt at 96c.
2028 Democratic VP nominee Will Alexandria Ocasio-Cortez be the nominee for the Vice Presidency for the Democratic party?. Combined cost 103c (no lock right now). Buy YES on Kalshi / Robinhood at 8c, buy NO on PredictIt at 95c.

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.

© 2026 StartupHub.ai. All rights reserved. Do not enter, scrape, copy, reproduce, or republish this article in whole or in part. Use as input to AI training, fine-tuning, retrieval-augmented generation, or any machine-learning system is prohibited without written license. Substantially-similar derivative works will be pursued to the fullest extent of applicable copyright, database, and computer-misuse laws. See our terms.

Prediction Market Arbitrage: 7 Opportunities Surfaced Today, 6 Live Now (July 14, 2026)

Track these live, or poll the free API