Strategy Blog
Investors, traders, fund managers, and market pioneers whose methods shaped how markets are studied.
Each profile digs into how a great market thinker made decisions: what they watched, what they avoided, and which lessons still help a retail investor read businesses, prices, risk, and crowd behavior with more judgment.
Hedge fund founder · Multi-strategy hedge fund management and quantitative, risk-controlled trading infrastructure
Ken Griffin turned a convertible-arbitrage start-up into Citadel, a multi-strategy institution that fused capital, code, talent, and risk control, then became a symbol of both hedge-fund excellence and market-structure controversy.
Pioneer · Low-cost indexing
John Bogle built Vanguard around a simple claim that became an industry threat: most investors should own the market, keep their costs low, and refuse to let financial intermediaries turn compounding into a fee machine.
Investor · Activist control investing
Carl Icahn turned hostile pressure, proxy threats, tender offers and public letters into a durable market strategy, but his later years show how the same concentration and leverage that create influence can also expose an empire.
Trader · Discretionary macro risk management
Paul Tudor Jones became a market legend by anticipating the 1987 crash, but his lasting influence lies in a harsher discipline: cut losses, resize risk, and survive long enough for the next dislocation.
Investor · Business-value compounding
After six decades at Berkshire, Buffett's achievement is not just a return record but a capital machine built around trust, float, restraint, and the discipline to admit error.
Investor · GARP stock picking
Peter Lynch became the patron saint of ordinary stock pickers by telling investors to notice what was already in front of them, but his Magellan record was built on far more than a shopping-mall slogan.
Trader · Systematic commodity trend following
Richard Dennis turned a small stake into one of the great commodity fortunes, trained the Turtle Traders, and left behind a sharper lesson about discipline, drawdowns, and the limits of mechanical conviction.
Investor · Special situations and quantitative value
Joel Greenblatt built one of value investing's great records in obscure corporate events, then translated the logic into the Magic Formula, a deceptively simple system whose real edge is behavioral discipline.
Investor · Global macro and risk parity
Ray Dalio turned a commodities advisory shop into a macro institution by treating markets as repeatable machines, then spent the rest of his career testing how far that idea could stretch.
Investor · CAN SLIM growth investing
William J. O'Neil fused earnings acceleration, price-volume analysis, market timing, and publishing into CAN SLIM, a method that still shapes how growth investors think about leadership, risk, and discipline.
Investor · Contrarian deep-value and credit dislocation investing
Michael Burry is famous for the subprime mortgage short, but his real legacy is a harsher and more durable discipline: forensic research, concentrated risk, and the willingness to look foolish before looking right.
Trader · Speculative tape reading and trend following
Jesse Livermore turned price action into a speculative art, made fortunes in crashes, and left a record that is still useful only when read as both technique and warning.
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