Trading psychology

Reading time ~5 min · Last updated 2026-07-17

Every rule in this guide is simple. Following them while money — even virtual money with a leaderboard attached — moves against you is not. That gap between knowing and doing is trading psychology, and it is where most seasons are actually lost.

Think in probabilities

Mark Douglas's central insight: an edge is a probability that plays out over many trades — like a casino's house edge — and yet traders emotionally experience each individual trade as a verdict on themselves. The casino does not despair when a gambler wins a hand; it knows the next thousand hands pay the mortgage. A trader with a real edge loses 40–50% of trades while executing flawlessly. Internalise this and two things follow:

• Any single trade means almost nothing. Not the brilliant win, not the stupid-feeling loss.
• Process is the only thing to judge. A losing trade that followed your rules was a good trade. A winning trade that broke them was a bad trade that paid — the most dangerous kind, because it trains the wrong lesson.

The predictable failure modes

Pattern	What it looks like	The mechanical antidote
Revenge trading	Doubling size immediately after a loss to "win it back"	Fixed 1% risk per trade — size is not an emotional variable. Consider a rule: after 2 losses, stop for the day
FOMO	Chasing a green candle at maximum leverage	No setup, no trade. The market reruns every opportunity within days — crypto especially
Loss aversion	Moving stops away, "it will come back"	Reduce-only stop placed with the entry, never after
Premature profit-taking	Cutting a 0.5R winner while letting 3R losers run	Predefined targets and trailing rules — decided before entry, when you were sane

Notice every antidote is mechanical. You do not defeat these biases with willpower in the moment — nobody does. You defeat them by making the decision earlier, when nothing is at stake, and automating it with orders.

Contest-specific tilt

The leaderboard adds a psychological layer real trading does not have: you can watch yourself being overtaken in real time. Late-season desperation trades — max leverage, no setup, "nothing to lose" — are the leaderboard equivalent of revenge trading, and the tie-breaker rules quietly punish them: maximum drawdown breaks ties, so a blown account ranks below a bruised one at the same equity. The optimal contest strategy is the optimal trading strategy: survive, compound, let the leverage-addicted eliminate themselves — usually in the first liquidation cascade of the season.