Criteria

Inclusion is based on a combination of: verifiable trading records (Profit.ly trade-by-trade verification, Kinfo independent third-party verification, prop firm cumulative payout records, third-party CPA audits, IRS-verified returns, sanctioned competitions like the U.S. Investing Championship); meaningful coverage in primary financial press; influence through books, courses, or long-standing trading communities; and reputation within the broader trading ecosystem.

The list spans modern retail traders with full Profit.ly trade-by-trade transparency through historical figures whose records pre-date modern audit standards. For the historical names, the verification standard is "documented through reputable financial press over decades" rather than "audited Profit.ly account" — different standards, both meaningful, and we've been explicit about which is which in the individual profiles.

The hardest cutoff was where to stop. There are still more names with legitimate claims to inclusion (Howard Marks's distressed credit work at Oaktree, Seth Klarman's value investing at Baupost, Einhorn's Greenlight, individual Tiger Cubs like Coleman/Mandel/Laffont, the original Turtle Jerry Parker's Chesapeake Capital, Ed Thorp's quantitative pioneering…). We optimized for a mix of styles, time periods, verification standards, and outcomes — including the cautionary cases like Niederhoffer and Wood — rather than a single comprehensive ranking. For more context on retail trading reality, see our coverage of day trading strategy and risk and trading education.