Paul Tudor Jones

"The most important rule of trading is to play great defense, not great offense." (Market Wizards, 1989)

Who he is

Trained in the cotton pits of New Orleans and New York, Jones founded Tudor Investment in 1980 and made it one of the longest-lived macro funds in the world. The legend was born in October 1987: convinced — partly by the comparison with the 1920s — that the market was fragile, he arrived at Black Monday positioned short and closed the month with a triple-digit return, documented around the Trader documentary (1987). Four decades later, his voice remains the reference for discretionary macro trading.

Contribution

• 5:1 asymmetry — hunt for trades where the potential is five times the risk: you can be wrong most of the time and still be profitable (see risk/reward ratio).
• Defence first — rigid mental stops, size reduction after losses, the daily question "where is my exit?" before "how much can I make?".
• The 200-day average as a lifesaver — his most-quoted public rule: above it you can stay invested, below it you defend — a brutal regime filter that keeps you out of the disasters ("it gets you out of the 1929s, the 1987s, the 2008s").
• Price before narrative — macro, yes, but the chart decides the timing: a fundamental view without price confirmation remains an opinion.

What today's students learn from him

1. Survival is a strategy: whoever defends capital can afford to wait for the asymmetric opportunity.
2. A simple mechanical filter (the 200) applied always is worth more than brilliant analysis applied sometimes.
3. After a losing streak you cut size — the forced-recovery spiral is the number-one killer (see drawdown control).

Study path

Related concepts

• risk-reward-ratio · r-multiple
• drawdown-control · market-regime
• ema — the 200 filter in practice

Links

• trader
• george-soros · stanley-druckenmiller — the macro family