Prediction Market Odds Comparison and Arbitrage Scanner
Compare conservatively matched markets across public prediction venues and identify probability gaps that deserve manual contract and liquidity review.
Cross-venue comparison scanner
Conservatively matches similarly worded open markets from official public Polymarket and Kalshi APIs, then compares indicative probabilities.
These are comparison candidates, not executable arbitrage. Verify wording, resolution, fees, liquidity, access, and current order books.
| Matched market | Polymarket YES | Kalshi YES | Probability gap | Indicative edge | Settlement terms | Match |
|---|---|---|---|---|---|---|
| Loading official venue data… | ||||||
Frequently asked questions
Direct answers about this prediction market tool and its limitations.
How are markets matched across prediction platforms?
Norynta compares normalized title tokens, numeric thresholds, and expiration dates. Markets with conflicting numbers or materially different deadlines are rejected even if their wording is otherwise similar.
Is a cross-platform price difference an arbitrage?
Not automatically. Contract wording, resolution authority, fees, geographic access, available size, transfer time, and the risk of filling only one leg must all be checked.
Are comparison prices live executable quotes?
No. They are timestamped public venue snapshots intended for research and candidate discovery, not a promise that both displayed prices can be filled.
Why might equivalent-looking markets not match?
A conservative scanner prefers false negatives to misleading matches. Different thresholds, dates, definitions, cancellation policies, or settlement sources can make two similar titles different contracts.