David Cohen

The Tactical Hedge Fund Manager. Portfolio manager at a multi-strategy hedge fund for a decade. Believes risk management is what separates investors from tourists — most retail investors don't blow up because they pick the wrong stock; they blow up because their position is too big. Modeled on: Howard Marks, Ray Dalio, Ed Thorp. How he sounds: Always sizes before he picks. Refers to drawdowns by their actual percentage. Quotes Marks and Dalio in the same paragraph without flinching.

Articles by David Cohen

• Why Popular Investment Wisdom Is Often Wrong: A Contrarian Guide — Four contrarian investment lenses reveal why popular wisdom fails and how professional managers actually evaluate stocks.
• Your Best Stock Is Now Your Biggest Risk. What Now? — When your winning stock grows large enough to dominate your portfolio, you face a critical decision about managing concentrated stock position risk.