Surprising Advice From World’s #1 Trading Psychologist (Dr. Steenbarger)

ELI5/TLDR

Dr. Brett Steenbarger, a trading psychologist who has spent nearly 40 years working with everyone from medical students to hedge fund managers, argues that good trading comes from building on what you are already good at — not from endlessly fixing what is wrong with you. The traders who succeed are not the ones who conquered fear and greed. They are the ones whose trading is an honest expression of their personality strengths: curiosity, self-control, and an entrepreneurial drive to build something. Also, you should have cats, or at minimum, a life outside of markets.

The Full Story

The Premise: You Already Have What You Need

Steenbarger opens with a claim that sounds like motivational fluff but turns out to be the structural backbone of his entire framework: your success as a trader will come from something you have already been doing well in your life. Not from chart patterns. Not from some guru’s system. From you.

“How you trade has to be an expression of who you are. In trying to be like someone else, you can get away from being you.”

The idea is that trading is a performance discipline, like surgery or professional music. And in every other performance discipline on earth, people train in teams, over years, building on existing talent. Nobody becomes a world-class basketball player by putting up a hoop in the backyard. Nobody becomes a world-class trader by sitting alone with a screen.

Positive Psychology: Stop Trying to Fix Yourself

This is the core of the talk and the title of Steenbarger’s new book. Conventional trading psychology is obsessed with problems — tilt, fear, greed, revenge trading. Steenbarger says that is like raising a child by only telling them what they did wrong.

“We achieve success not by just getting rid of our negatives but by building our positives.”

He illustrates this with surgeons. Surgery has higher stakes than trading. A life is on the table, not just money. Yet in 40 years at a medical school, Steenbarger has never seen a surgical resident go on tilt. No surgeon has ever panic-cut because they feared missing out. The reason is not that surgeons have superior emotional control. It is that they trained so thoroughly, for so long, with so much supervision and repetition, that the work became second nature. They are not managing emotions. They are just doing their job.

The implication for traders: most psychological problems are actually training problems wearing a disguise.

FU Therapy and the Power of Emotional Arousal

Steenbarger’s research found that emotional arousal is the single biggest catalyst for lasting change. Writing in a journal is fine. Reviewing charts is fine. But without feeling, nothing sticks.

He tells the story of a young man trapped in relentless negative self-talk. Standard cognitive therapy was going nowhere. So Steenbarger tried something different: he stood up, circled the man, and repeated every cruel thing the man said to himself. “You’re no good. You’re never going to be a success. You’re such a failure.” Over and over.

The man’s fists clenched. His face went red. And finally he exploded: “Fuck you.”

“That’s how FU therapy was born.”

The technique is simple. When your inner voice tells you to give up, imagine someone you dislike saying it to you. The anger that rises — that is the emotion that breaks the pattern. You channel it not into a fistfight but into defiance against your own worst thinking.

Journaling, But Not How You Think

Most traders journal their mistakes. I should have sized smaller. I should have taken profits earlier. Should have, should have, should have. Steenbarger points out this is the equivalent of telling a child every day what they did wrong and expecting confidence to bloom.

His minimum journal format is two questions:

What one thing did I do well today? How do I repeat it tomorrow?
What one thing did I not do well? How do I correct it tomorrow?

One hedge fund manager he worked with took this further — he spoke his journal into a recorder, then listened to it the next morning. He was coaching himself, in his own voice, from his own experience.

“You are learning not just from some guru, not just from some mentor. You are learning from yourself as your own mentor.”

The key is reverse engineering success. Study your best trades the way you normally obsess over your worst ones. What were you thinking? How did you plan? What led to good sizing? Do that again. And again. And again.

90 in 90: How Change Actually Sticks

Emotion starts change. Repetition makes it permanent. Steenbarger borrows from addiction recovery: AA prescribes 90 meetings in 90 days. Every single day, you show up. After 90 days, the new behavior is no longer something you work at. It is part of you.

Pick one thing to change in your trading. Sizing, exits, whatever. Commit to doing it for 90 consecutive days. Journal it daily. By the end, it is not discipline anymore. It is habit.

The Personality Profile of Great Traders

Steenbarger gave strength assessments to hedge fund managers. The top performers shared three traits:

Curiosity. They loved finding opportunity. They looked at markets with genuine interest, not just for profit but for discovery. They were not copying someone else’s ideas.
Self-control. They were level. Patient. They waited for setups rather than chasing them. Curious minds with steady hands.
Entrepreneurialism. This one came up in a follow-up study and turned out to be critical. The best traders saw themselves as building a business, not just placing bets. They had a vision for what they were constructing.

It was not that these traders had conquered fear and greed. It was that their trading expressed their personality. The strengths came first; the results followed.

An interesting wrinkle: overusing a strength turns it into a weakness. Someone who is fiercely independent may stop listening to the market. Growth often comes from developing your “latent” strengths — the ones ranked fifth through eighth on the list — to balance out the dominant ones.

The Shark Story

Mike Bellafiore asks about “Shark,” an SMB trader headed for the next Market Wizards book. What did Steenbarger notice early on?

Shark was a gamer. He came in processing more information across more screens than Steenbarger could track. Several of SMB’s best traders had gaming backgrounds — they had already trained their brains to track many moving things at once and respond fast. Shark’s talent was not learned at a trading desk. It was imported from a previous life. Which is exactly the thesis of the whole talk.

Diversify Your Life, Not Just Your Portfolio

Steenbarger references Martin Seligman’s PERMA model: positive emotion, engagement, relationships, meaning, accomplishment, plus physical health. Most new traders pour everything into markets and neglect the rest. Then when trading goes badly — and it will — they have nothing to fall back on. No shock absorber.

“The path to success in trading is having something or some things in your life that are more important to you than P&L.”

He shows a slide of his three cats. A rare Khao Manee from Thailand, a chocolate point Siamese, and a rescued black tabby. They sleep in his bed. They are part of the point. A diversified life is not a distraction from trading. It is the foundation that keeps you level when the P&L is not.

One money manager he works with had a rule: if it is not in your calendar, it is not part of your process. He would ask traders to describe their routine, then ask to see the calendar. Nothing was there. The calendar is the truth. Put the gym in it. Put the relationships in it. Put the cats in it.

Visions Over Goals

Goals direct effort. Visions inspire it. Many of the hedge fund managers Steenbarger works with dedicate a portion of their profits to causes they believe in. Their discipline is not white-knuckled self-control. It is that their trading serves something bigger than the next trade.

Specialization vs. Generalization

An audience member asks whether traders should specialize or broaden out. Steenbarger says both — but in a specific way. You can specialize deeply in one approach and then expand it across markets. He uses the NYSE TICK indicator as an example: he learned to read buying and selling pressure through one measure, then applied the same skill to the S&P 500, Nasdaq, and Russell 2000. Broader without being shallower.

Hitting Bottom

Someone asks how to recover from traumatic trading losses. Steenbarger is direct: sometimes you need to hit bottom. The pain has to be bad enough that “I want to change” becomes “I have to change.” He cites Paul Tudor Jones, who lost three-quarters of his money early in his career and rebuilt himself entirely around risk management. The loss was the teacher. Everything is information.

Claude’s Take

Steenbarger is operating in a space — trading psychology — that is roughly 80% recycled self-help and 20% genuine insight. He sits firmly in the 20%.

The surgeon analogy is the strongest thing in the talk. It reframes “trading psychology problems” as “insufficient training” in a way that is both evidence-based and practically useful. Nobody asks why surgeons do not go on tilt, because the answer is obvious: they trained for a decade under direct supervision. The fact that most traders skip this step and then wonder why they cannot control their emotions is, when you say it plainly, a little absurd.

The positive psychology framing is well-supported by research (Seligman, Fredrickson, and the VIA strengths framework are all real and peer-reviewed). The 90-in-90 principle from addiction recovery is legitimate. The idea that emotional arousal catalyzes change more than rational analysis is backed by decades of psychotherapy outcome research. Steenbarger is not making things up. He is translating clinical psychology into trading language, and doing it competently.

The personality research on hedge fund managers is interesting but should be taken with a grain of salt. These are likely small samples, possibly self-selected, and “curiosity + self-control + entrepreneurialism” describes pretty much every successful person in any field. It is not clear how much this tells you about trading specifically versus success generally.

The weakest moment is the Ayn Rand quote at the end. Quoting Rand on the moral beauty of money to a room full of traders is preaching to a choir that does not need encouragement in that direction. It feels tacked on and slightly tone-deaf to the rest of the talk, which was otherwise grounded and practical.

Where Steenbarger is genuinely useful: he is not selling a system. He is not promising that positive thinking will make you rich. He is saying that trading is a performance discipline, performance disciplines require proper training, and proper training means building on strengths rather than endlessly cataloguing weaknesses. That is not revolutionary, but it is correct, and most traders are not doing it.