Every aggregate statistic CopyGrade publishes, on one page — from our own scored-wallet dataset and the independent research we cite, each with its source and date. Free to quote with attribution and a link — hit Cite on any number for a ready-to-paste citation with a deep link back to it. Snapshot: July 2026, last updated July 5, 2026; figures move as coverage grows and the model is recalibrated in public.
From 1,649 actively-traded wallets scored by the Copy Score model in the July 2026 snapshot.
CopyGrade's July 2026 snapshot scored 1,649 actively-traded Polymarket wallets from their public trade history.
60% of actively-traded Polymarket wallets carry a farming flag, and 51% carry a severe, high-confidence one.
The median active Polymarket wallet has a realistic post-fee edge of -2.7% — negative before a copier adds slippage or latency — and 74% of wallets are negative outright.
Only 22 of 1,649 active Polymarket wallets (1.3%) pass every test a copier should apply: enough history, a clean forensic record, a real post-fee edge, and a Copy Score of 75 or higher.
The median Copy Score across active Polymarket wallets is 30 out of 100, and 73% of wallets score below 50.
The 159 wallets on Polymarket's public profit and volume leaderboards, scored with the same model.
69% of the 159 wallets on Polymarket's profit and volume leaderboards are farming-flagged (59% severely) — a higher rate than the wider active population.
Only 1 of the 159 Polymarket leaderboard wallets (0.6%) is worth copying by CopyGrade's full vetting bar — fewer, proportionally, than the population the board was skimmed from.
The median Polymarket leaderboard wallet would hand a copier a -9.7% realistic edge after fees, slippage, and latency — despite topping a raw-profit ranking.
Estimates from an independent Columbia University working paper — algorithmic classifications, not audited figures.
A Columbia University working paper estimates roughly 25% of Polymarket's all-time trading volume is consistent with wash trading.
The same study flags 14% of the 1.26 million Polymarket wallets it examined as wash-trading participants.
Estimated wash share varies sharply by category: roughly 45% of Sports volume, 17% of Elections, 12% of Politics, and 3% of Crypto.
CopyGrade figures are computed from public Polymarket trade history by the Copy Score model and published in dated report editions; they are our documented opinion, recomputed as coverage grows. Scores are graded against realized forward outcomes — the live band-by-band results are on the track record. The wash-trading figures are the cited authors' estimates from a working paper. To cite the whole page: “CopyGrade, Polymarket copy-trading statistics, July 2026” with a link; to cite a single number, use its Cite button for a paste-ready line with a deep link back to it. For the analysis behind the numbers, start with how to vet a Polymarket trader or the graded leaderboard. CopyGrade is analysis-only — it never executes trades or holds funds. Not financial advice.