Paul Tudor Jones made $100 million by shorting the market during the 1987 stock market crash. With over 40 years of trading experience, he continues to manage billions of dollars today. 

Below are his core insights on risk management, trading psychology, and market understanding.

Who is Paul Tudor Jones?

Paul Tudor Jones was born in 1954 in Memphis, Tennessee. He graduated from the University of Virginia with a degree in economics and was the school's welterweight boxing champion—a competitive spirit that has defined his entire career.

In the late 1970s, he learned to trade cotton futures on the New York Cotton Exchange under the guidance of renowned cotton trader Eli Tullis. In 1980, at just 26 years old, Jones founded Tudor Investment Corporation, which has since grown into one of the world's largest hedge funds.

What truly brought him fame was "Black Monday" in October 1987, when the Dow Jones Industrial Index plummeted 22% in a single day. Jones had heavily shorted the market before the crash and reportedly tripled his capital that month. His partner, Peter Borish, had identified striking similarities between the 1987 market patterns and those preceding the 1929 Great Depression.

Today, Paul Tudor Jones has an estimated net worth of $8 billion. He also co-founded the Robin Hood Foundation in 1988, dedicated to alleviating poverty in New York City.

On Risk Management

If Paul Tudor Jones could convey only one core idea, it would be: Don’t blow up.

He focuses more on avoiding losses than on making money. This might sound pessimistic, but it is precisely this mindset that has allowed him to survive in the markets for over four decades. It is the cornerstone of effective risk management.

"The most important rule of trading is to play great defense, not great offense."

"Every day I assume every position I have is wrong. I know where my stop risk points are going to be, and I do that so I can define my maximum drawdown. And then, I feel I'm immune. I've got my risk managed, so the rest of the day I'm just waiting for price to move in my direction. If it doesn't, I'm out."

"I am always thinking about losing money as opposed to making money. Don't focus on making money; focus on protecting what you have."

"At the end of the day, the most important thing is: How good are you at risk control? Ninety percent of any great trader is risk control."

"You should always be in control, never hoping, always trading, and always, first and foremost, protecting your downside. Most individual investors and traders lose money because they are not focused on losing money. They need to focus on: How much money do I have at risk? And how much capital am I risking per trade? If everyone spent 90% of their time on those two questions, instead of thinking about how much they're going to make, they would all be incredibly successful investors."

"If my positions are going against me, I get out; if they are going for me, I keep them. Risk control is the most important thing in trading."

"If you are uncomfortable with the amount of risk in a losing position, the solution is very simple: get out. You can always get back in."

On Position Sizing

Paul Tudor Jones is renowned for his 5:1 risk-reward rule. He reduces position sizes when losing and increases them when winning—the opposite of what most traders do. This is the best starting point for truly understanding position sizing.

"With a 5:1 reward-to-risk ratio, even if I'm wrong 80% of the time, I still won't lose money."

"I look for 5:1. That means I'm risking $1 to make $5. The 5:1 ratio allows me to be profitable with only a 20% win rate."

"As soon as I have a string of losing trades, I will continually reduce my position size. When I'm trading poorly, I keep reducing my size. That way, when I'm trading my worst, I'm trading my smallest."

"Never add to a losing position. When you are trading poorly, reduce your trading size. When you are trading well, increase your size."

"Losers average losers."

"Never trade when you are not in control. For example, I won't take on large risk before a major economic data release, because that's not trading; it's gambling."

"I want to make sure I never lose double digits (more than 10%) in any month."

Additionally, he typically risks about 1% of his account capital per trade. With a 5:1 target reward-to-risk ratio, the math works even if you're wrong most of the time.

On Trading Psychology

Jones believes ego is a trader's deadliest killer. Even after decades in the markets, he constantly questions himself—and that's key. If trading psychology is your weak spot, pay close attention.

"Don't be a hero. Don't have an ego. Always question yourself and your ability. Never think you are very good. The second you do, you are dead."

"First, never overtrade; second, never let your ego get in the way of the market."

"I'm more scared today than at any point since I started trading, because I know how fleeting success can be in this business. To remain successful, I have to remain scared. My worst losses have always followed periods when I've done well and started to think I knew something."

"One advantage I think I have is that I treat everything that has happened up to this point as history. I don't care about the mistake I made three seconds ago in the market. All I care about is what I am going to do from the next moment on. I try to avoid any emotional attachment to any market."

"Trading is very competitive, and you have to be able to handle getting knocked down by the market."

"I say to myself, 'Why did you bet everything on one trade, you fool? Why not make life a journey of seeking happiness instead of pain?'"

"Everything I do each day is an attempt to keep myself as happy and relaxed as possible."

On Market Timing and Trends

Jones gained fame for precisely catching market turning points. He uses the 200-day moving average as a defensive tool and firmly believes: price moves first, fundamentals follow.

"I believe the big money is made at the turns in the market. Most people say you get killed trying to pick tops and bottoms, and you make all your money in the middle. But for the last twelve years, I have often missed the meat in the middle, but I have caught a lot of tops and bottoms."

"I've always believed that price moves first, fundamentals later."

"My metric for everything I look at is the 200-day moving average of closing prices. I've seen too many things go to zero—stocks, commodities. The whole trick in investing is: 'How do I keep from losing everything?' If you use a 200-day moving average rule, when the price goes below, you sell, play defense, and get out of the way."

When Tony Robbins asked if the 200-day moving average helped him anticipate the 1987 crash, Jones replied:

"Absolutely. The price had already broken below the 200-day moving average. During the most violent part of the crash, I was short."

"You should always trade with the prevailing trend."

"Markets trend only about 15% of the time; the rest of the time, they are basically range-bound."

"When you see a range expansion, the market is sending you a very loud, clear signal that the market is getting ready to move in the direction of that expansion."

"Fundamentals might be good for the first third or first 50-60% of a move, but the last third of a great bull market is typically a blow-off, where the mania runs wild and prices go parabolic."

"No training—classroom or otherwise—can prepare you for the last third of a bull or bear market. It's purely visceral."

On Learning and Growth

Jones doesn't rely on "inside information." He simply does his homework relentlessly—and still does today.

"The secret to being successful from a trading perspective is to have an indefatigable and an undying and unquenchable thirst for information and knowledge."

"You learn more from your losses than from your wins."

"Intellectual capital will always trump financial capital."

"If life wasn't a learning experience, I doubt I'd get out of bed in the morning."

"Sometimes, failure just shoves you off the wrong path and puts you on the right one."

"Failure is an integral part of my journey."

"It's not that we have any unfair information that others don't have; it's that we do our homework. People just don't believe that someone can actually step out of the crowd and rise above mediocrity."

"Adapt, evolve, compete, or get liquidated."

Key Takeaways

1. Defense First: Focus more on avoiding losses than on making money. Define your maximum drawdown before trading.
2. Adhere to the 5:1 Risk-Reward Ratio: Even if you're wrong 80% of the time, sizable individual wins can lead to long-term profitability.
3. Kill Your Ego: The moment you think you're "good" is when you start getting hurt.
4. Never Average Down on Losses: Cut losing positions; only add to winning ones.
5. Price Leads: The 200-day moving average is a simple yet effective defensive tool—use it.
6. Do the Homework: There are no secrets, only relentless, almost obsessive preparation.