WhaleWatch is a sonar for prediction markets. It tracks live Polymarket events, learns each market's normal trade-size distribution, and flags unusually large cash outliers — so-called whale bets.
WhaleWatch first joins related fills from the same wallet, outcome and direction into a position episode, then evaluates that position against its exact condition market — never against unrelated outcomes in the same event. It must pass a robust threshold built from the median, 95th percentile and log-MAD, plus a liquidity-scaled dollar floor ($1,000–$10,000). LOW, MID and HIGH describe outlier strength, not insider probability.
Every Polymarket market has outcome shares priced between 0¢ and $1. In a binary market, a 30¢ YES price is roughly the crowd's 30% estimate. BUY adds exposure to the selected outcome; SELL may reduce or close an old position. WhaleWatch calls a buy “new” only when it was first observed within 10 minutes of execution. Outlier tiers describe unusual size, not the chance of winning.
No. A whale flag is a signal, not a guarantee. It means a bet is unusually large for its market — which can indicate smart money, but can also just be a rich bettor with an opinion. We grade outlier strength; we never infer private knowledge or promise outcomes. Nothing on WhaleWatch is financial advice.
Free includes all tracked markets, prices, volume, typical bet sizes, adaptive thresholds, available-history charts, the 3 strongest current whale signals with hidden wallets, and tracking for up to 3 public wallets. Pro unlocks every signal, exact trade details, full wallet identities, tracking for up to 50 wallets, unlimited market follows and reminders for €14.90 monthly or €119 yearly.
Open your Profile and click 'Manage / cancel subscription'. After cancelling, no further charges will be made — your plan stays active until the end of the period you already paid for, then your account automatically drops to the free tier.
Yes. Payments are processed entirely by Stripe, a certified PCI-DSS Level 1 payment provider. WhaleWatch never sees or stores your card number.
Open any market and click 'Email alerts'. If that market produces a fresh Extreme BUY that passes all strict freshness, size, coverage and wallet-dominance rules, you'll receive a time-sensitive email with the observed whale entry, current outcome price and price-movement context. When an event time is available, you also get an email roughly 30 minutes before it starts and a wrap-up after it ends. Removing the reminder in your Profile stops those market-specific emails. Delivery depends on the live collector and email provider, so always verify the current market price in WhaleWatch.
From Polymarket's public APIs (gamma-api and data-api). WhaleWatch is an independent analytics tool and is not affiliated with Polymarket.
No. WhaleWatch is information-only — we don't accept, place or broker bets of any kind.
Email dujam.mario.tudor@gmail.com — we actually reply.