The TraderLion Podcast

From Blowing Up 3 Times to Managing a $200 Million Hedge Fund — Exclusive Interview with Jim Roppel

9 snips
Mar 29, 2026
Jim Roppel, a 40+ year hedge fund manager and direct student of Bill O'Neill, shares his CAN SLIM roots and risk-first trading rules. He discusses his 3-5-7% stop system, WANDA 20/20 and 40/40 screens, and how he sizes and hedges massive winners. Jim also recounts life-changing trades and why AI feels like a generational theme.
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ADVICE

Run 20/20 WANDA Screens For True Leaders

  • Use CAN SLIM/WANDA screening thresholds like 20/20 or 40/40 to find elite leaders with earnings, sales and ROE.
  • Jim looks for 20%+ across variables and RS in the high 90s; only a handful of names qualify and that's enough.
ADVICE

Probe Earnings Gaps Early And Scale In

  • When a liquid leader gaps massively on earnings, buy early and scale in before the first 30–45 minutes fade.
  • Jim often takes at least 10% premarket and adds through the morning, expecting many gaps to initially fade.
ANECDOTE

SanDisk Earnings Gap Turned Into Life Changing Trade

  • SanDisk exploded after a 3,200% volume spike and a huge earnings surprise; Jim bought across many accounts and doubled his stake in one trade.
  • He later threw the position away after a sharp undercut of the 50‑day and learned to take life‑changing gains.
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