The 4 red flags we check on every Polymarket wallet before anyone copies it
Most copy-traders look at one number: PnL. That's the fastest way to get burned.
Here's what we actually look at when vetting a wallet:
1. Maker/taker split. A wallet that's mostly taking liquidity is paying up for entries — that edge doesn't always survive being copied at a delay. A maker-heavy wallet often has a very different (and harder to replicate) execution profile.
2. Sizing behavior. Flat sizing vs. conviction sizing tells you everything about whether the "win rate" is real or just a few oversized bets carrying the whole track record. A wallet with a 70% win rate and one 50x position that blew up isn't a 70% win rate wallet.
3. Walk-forward decay. Does performance hold up out-of-sample as markets resolve, or does it cluster around a handful of early lucky calls? Split the history in half and check both halves independently.
4. Flat-dollar copy simulation. The only number that matters: if you'd copied every trade at a fixed dollar amount (not proportional to their size), what's your actual return? This is the single biggest gap between "their PnL" and "your PnL."
If a wallet can't clear these four, the PnL screenshot doesn't mean much.
Vet the wallet before you copy it.
