Insider detection
Spot the trades that look like they know.
Every Polymarket whale buy gets an insider score from 0 to 100, built from its size, its odds, its timing and the wallet behind it. The score always shows its reasons.
How it works
Three steps, start to finish.
What's included.
Polymarket whale buys scored for insider risk, with the reasons shown. How the scores work.
A score on every whale buy
0 to 100, with a low, medium or high band that is the same everywhere in the app.
Reasons, not a black box
Each score lists the factors that raised it and by how much.
Fresh wallets
New wallets placing large bets are flagged as their own signal.
Coordinated wallets
Clusters of wallets piling into the same market together.
Suspicious events
Events ranked by flagged buying, free for everyone.
Alerts on flagged trades
A custom rule can send you high-scoring trades as they land.
What goes into the score
Five factors, each capped, add up to 100. A large bet at long odds shortly before resolution is the classic red flag.
- Low probability, high stakesup to 35 pts
Large bets on unlikely outcomes
- High-risk market contextup to 20 pts
Market type and event context
- Market dominanceup to 20 pts
The trade's share of the market's volume
- Fresh wallet activityup to 15 pts
New wallets placing large bets
- Suspicious timingup to 10 pts
How close to resolution it was placed
FAQs
Common questions about Polywhaler's insider detection.
What is the insider score?
A 0 to 100 score on every Polymarket whale buy, built from the size of the bet against its odds, the market's context, the trade's share of the market's volume, the wallet's age and the timing relative to the event.
Does a high score mean someone is an insider?
No. It means the trade has the pattern informed trades often have. It is a signal to look closer, not an accusation, and every score shows the reasons behind it.
Is insider detection free?
Scores and the Suspicious events view are free. Pro adds the full insider metrics on whale profiles and custom alerts on flagged trades.
Which markets are scored?
Whale buys on Polymarket, as they come in. Sells and Kalshi trades are not scored.
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