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Methodology: how ProbPocket verifies Polymarket PnL

Data as of · source: daily Polymarket leaderboard archive 2026-03-19 → 2026-11-01 (203 snapshots), checked against Polymarket's public APIs · methodology

203daily leaderboard snapshots, 2026-03-19 → 2026-11-01
74,683distinct addresses seen on any daily board
624wallets with a lifetime verdict
1463wallets with volume / win-rate basics

What we measure

Polymarket's daily leaderboard lists the wallets that made the most on a given day. It never lists the days a wallet lost. If you add up the days a wallet appears, you get a number that can only flatter it. ProbPocket keeps a copy of the board every day and puts that sum next to the wallet's verified lifetime PnL.

Data sources

Update schedule

Daily refresh; each page shows its data date. Weekly reports are written on the first refresh of each ISO week and then frozen, so their numbers can be cited.

Limits

Also see the board-page method note and the step-by-step guide.

FAQ

What does "verified PnL" mean on ProbPocket?
It is the wallet's lifetime profit and loss as reported by Polymarket's own public profit endpoint (data-api v2 leaderboard, timePeriod=all, per wallet). We do not compute it from trades ourselves; we compare it with what the daily leaderboard shows. As of 2026-11-01, 624 wallets have a verdict.
How often is the data updated?
Once a day. A new daily leaderboard snapshot is added and every board, wallet page and category page is regenerated. A weekly report is frozen once per ISO week. Every page prints the date of the data it shows.
Are fees included?
Yes. Polymarket's official PnL already has taker fees deducted: on fee-heavy wallets it matches every cash in and out plus open positions (checked 2026-10-30). Wallet pages list the fees paid separately for reference, as a lower bound.
Is this financial advice or a copy-trading signal?
No. ProbPocket is read-only research about public wallet records. Past results, and especially leaderboard results, say little about future returns.

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