Following "proven winners": trader skill does not persist
Screen for wallets with the best lifetime records, then copy only them. The cleanest-sounding strategy on the board — and the data killed it twice.
The hypothesisSome traders are durably skilled. Rank all wallets by honest lifetime ROI on resolved bets, copy only the proven winners, inherit their edge.
The test
Two independent runs. First, a live paper lane followed the single best wallet our ranking had ever surfaced — +24.9% ROI across 2,430 settled paper copies in 14 days, an extraordinary record. Second, the decisive backtest: take every wallet whose first-half record exceeded +15% ROI on an adequate sample (44 wallets), then measure their second-half, out-of-sample, dollar-weighted performance. This is the test every leaderboard implicitly claims to pass.
The result
The cohort of proven winners returned −9.9% forward, with only 36% of wallets still positive — indistinguishable from selecting wallets at random, minus fees. The star wallet stopped trading almost entirely weeks after we began following it (4 signals in 14 days, from ~170/day). A restocked roster of four freshly-screened elites, chosen with stricter filters, bled at our fills too. A separate canary that armed real money on a "tracked winners" cohort failed its verdict gate at −46% ROI over 149 settled copies in its first week.
Conclusion
Lifetime ROI screens select for lucky streaks and expired regimes, not persistent skill. The wallets that look best in hindsight are precisely the ones most likely to have already extracted their edge — or to have never had one. This is the quiet fraud inside every "top trader" leaderboard and every copytrading product built on one: the ranking is real, the forward edge is not. We now treat any wallet screen as unproven until it survives an out-of-sample window.