Introducing Cross-Platform Probability Comparison
Compare implied probabilities across Kalshi, Polymarket, sportsbooks, and more in one view. Available in data notebooks — import odds with one line of Python and spot pricing discrepancies instantly.
You can now compare implied probabilities for the same event across multiple platforms — side by side, in real time — directly in EVSignals data notebooks.
How it works
In any notebook, import live odds with a single line of Python:
from evsignals import markets
# Get cross-platform comparison for any event
comparison = markets.compare("2026 US Presidential Election")
comparison.plot()
This returns a unified view showing each platform's implied probability, the spread between them, and the historical price trajectory. The chart updates in real time via WebSocket.
Spotting edges
When the same event trades at different prices on different platforms, there's an edge. For example:
| Platform | Implied Probability | Price |
|---|---|---|
| Kalshi | 58.2% | 58¢ |
| Polymarket | 53.1% | 53¢ |
| PredictIt | 60.0% | 60¢ |
Available now
Cross-platform comparison is live in all data notebooks. Pro and Enterprise users get real-time updates; Starter users get 15-minute delayed snapshots. Check the docs for the full API reference.