Polymarket's leaderboards rank by raw profit — the one number that tells you almost nothing about whether copying a wallet makes you money. We grade every name on the boards by whether it's actually copyable, and the two lists below are the point: of the wallets atop the boards at the July 2026 snapshot (189 graded), 59.8% carry a farming flag and only 0.5% clear the bar — see the full breakdown in the July 2026 data report or all our published numbers. First the wallets that currently pass our vetting bar; then this month's 30d profit board, with each trader's verdict. The standalone, regularly refreshed version of that shortlist — with each wallet's realistic edge and observation span — lives at best Polymarket traders to copy.
Most profit leaders don't clear our vetting bar — these wallets currently do: our model flags no farming risk, the Copy Score sits in the Copy-candidate band or better, and each has traded within the last 30 days. A passing grade is CopyGrade's documented opinion as of the latest sync, not a guarantee — open a wallet's Copy Verdict before copying anyone.
Raw profit rewards account size, reckless sizing, and luck, and it's computed on the leader's own fills — zero fees, their timing. A copier pays taker fees in and out and eats slippage and latency. And farming — a wallet built to turn its copiers into exit liquidity — is invisible to a profit ranking, because it's a behavioural pattern in the trade history, not a number in the PnL column. The CopyGrade Score reads both. See how it's calculated, the farming signatures we check for, and how to run the full vetting checklist on any name below.
CopyGrade is independent, analysis-only due diligence — it never executes trades or holds funds. Standings are the public Polymarket leaderboard; the CopyGrade Score and verdict are computed from public Polymarket trade history and recomputed on each sync, and are CopyGrade's documented opinion, not a statement of fact about any trader. Not financial advice.