Quick answer
A Polymarket whale tracker monitors large trades and wallet activity in real time. This one is free and live: every Polymarket trade over $10,000 as it happens (market, side, price, trader), plus an anonymous-wallet watch and the 30-day top-trader leaderboard, pulled straight from public on-chain data. It updates every minute. No signup.
Every Polymarket trade settles on a public blockchain. Whale activity has always been public. Watching it was the inconvenient part.
Not anymore. A live whale feed. An anonymous-wallet watch. The traders printing the most profit this month. All on one page, all free.
In the last 24 hours this tracker logged $7.4M in Polymarket whale volume across 300 trades over $10,000, the largest a single fill of $238k. The top trader on the 30-day leaderboard is up $3.7M.
Live whale trades
Newest first
Anonymous wallet watch
Large trades from wallets with no public username
| Market | Side | Price | Amount | When |
|---|---|---|---|---|
 Detroit Tigers vs. Chicago White SoxChicago White Sox | SELL | 96¢ | $20k | Sep 20, 23:50 UTC |
| Detroit Tigers vs. Chicago White SoxChicago White Sox | BUY | 94¢ | $20k | Sep 20, 23:42 UTC |
Top traders: 30-day profit
Polymarket leaderboard
| # | Trader | 30d profit | 30d volume |
|---|---|---|---|
| 1 | 00gringo00 | $3.7M | $28.2M |
| 2 | totoro3miyazaki | $2.5M | $19.2M |
| 3 | TheReturnOfDarthMaul | $2M | $3.9M |
| 4 | Kch-Temp | $1.4M | $6.2M |
| 5 | Flaznorp | $1.3M | $117.1M |
| 6 | balthazar | $1.2M | $4.3M |
| 7 | sainttroplay | $941k | $2.9M |
| 8 | e46m3 | $891k | $1.9M |
| 9 | ripley86alien | $827k | $11.7M |
| 10 | Elaran1993 | $748k | $3.7M |
Source: Polymarket public on-chain data. Trade sizes are share count × price.
How can I track Polymarket whales?
Three ways. Watch a feed like the one above: every trade routed through Polymarket's contracts is public within seconds, so a tracker only has to filter by size. Follow specific wallets: once you spot a trader worth watching, their full position history is queryable by address. That's a Polymarket wallet tracker. Or query the data yourself: Polymarket runs a free public data API, and the Polymarket leaderboard is built from the same on-chain records. The venue-wide totals, volume and open interest across every open market, are on our live prediction market data dashboard.
Watchers and winners split on one thing: speed. A $100k buy moves a thin market in minutes. By the time the screenshot circulates on X, the price has already adjusted.
That's why serious flow-watchers don't live in a browser tab. They sit inside a prediction markets trading terminal: see the trade, judge the trade, take the trade. One screen.
What counts as a whale on Polymarket?
There's no official definition. There are working thresholds: $5,000+ per trade is notable, $10,000+ is a whale (the cutoff this feed uses), and $100,000+ moves all but the deepest markets. For context, the median Polymarket trade is under $100. A five-figure fill is the top fraction of a percent of everything that prints.
Why anonymous wallets matter
Every Polymarket account gets an auto-generated pseudonym. Choosing a public username is optional. So when a wallet with no name and no history starts placing five-figure bets on an obscure market, that pattern is what 'insider watch' tools flag. The signal is real: unusual conviction from unknown money. It proves interest and nothing more. Investigate before you follow.
Is it legal to track Polymarket whale wallets?
Yes. Blockchain data is public by design. Watching it is reading the tape, no different from watching order flow on any exchange. Wallets are pseudonymous, so you track an address, and the person behind it stays anonymous.
Watching public flow and drawing your own conclusions is the whole point of a market.
Do Polymarket whales actually win?
The typical Polymarket trader loses money. The profit concentrates in a small group of disciplined accounts, and some of them are on the leaderboard above right now.
A big bankroll proves nothing about skill. Plenty of whales are rich and wrong. The flow worth following is repeatedly profitable flow, which is why the column to study on that leaderboard is profit. Volume just measures activity, and the live venue totals behind it, every market on Kalshi and Polymarket summed, sit on our prediction market volume dashboard.
Our guides to Polymarket trading strategies and implied probability break down the mechanics: how sharp traders decide when a big order is information and when it's just money.
The best Polymarket whale trackers compared
Below is the full field: six trackers, and one of them is attached to a real trading terminal. The wider toolkit, analytics and copy trading included, is in our best Polymarket tools roundup, and every tool built on any venue is counted in our best prediction market tools census: 288 of them, 42 in this whale-tracking category alone.
| Tool | Live feed | Coverage | Standout feature | Can you trade from it? |
|---|---|---|---|---|
| Kairos (this page + terminal) | Yes: $10k+ trades, 1-min refresh | Polymarket + Kalshi | The only tracker attached to a full trading terminal | Yes: one account, sub-second execution |
| Polywhaler | Yes | Polymarket + Kalshi | Insider-activity heuristics | No |
| PolyInsider | Yes | Polymarket | Fresh-wallet detection | No |
| Unusual Whales (Predictions) | Yes | Polymarket | Position P&L tracking over time | No |
| Arkham | Dashboard | Polymarket | Wallet deanonymization research | No |
| Chrome extensions / Discord bots | Alerts only | Polymarket | Configurable alert thresholds | No |
From watching whales to trading with them
A whale feed tells you what just happened. Making money takes three more answers: whether the market is still mispriced, how deep the book is, and whether you can get filled before the price adjusts.
Those need an order book, a portfolio view, and fast execution. That's the Kairos prediction market terminal: the same whale flow, next to the markets it's moving, with one account across Polymarket and Kalshi. Sub-second data, real order types, fragmented liquidity in one place.
The tracker on this page stays free either way. See you in the order books.