Dennis Gartman

Dennis Gartman published The Gartman Letter daily from 1987 until 2019, building a subscriber base of hundreds of institutional investors including banks, hedge funds, and commodity trading advisors. His commentary spanned gold, energy, grains, currencies, and macro trends. He became known for specific rules — particularly "trade in the direction of the trend" — and for self-deprecating admissions when wrong. Gartman appeared regularly on CNBC and Bloomberg, and his newsletter became a significant reference in commodity markets during his tenure. His "Gartman Rules" — a set of trading maxims covering position sizing, trend identification, and loss management — became widely cited in trading education, providing retail and professional traders with a concise behavioral framework for commodity and macro trading. His willingness to publicly acknowledge errors and reverse positions modeled the intellectual humility that systematic traders consider essential for long-run survival in commodity markets.