Trading Psychology

Two emotions dominate trading and both are enemies of success. They are not flaws to be eliminated — they are evolved responses to risk and uncertainty that must be managed. 😨 FEAR — manifestations: • Exiting winning trades too early for fear of losing the open profit (loss aversion: the pain of losing €100 is ~2x the pleasure of gaining €100, so we lock small wins and let losses run). • Not entering valid trades for fear of losing (the 'I'll wait for a better entry' that never comes). • Closing losing trades before the stop, hoping the market comes back (aversion to realising the loss — the sunk-cost fallacy). • Reducing size after losses to the point where gains become insignificant (over-defensive regime that prevents recovery of the account). 🤑 GREED — manifestations: • Not respecting take profit, hoping for larger gains (and watching the profit evaporate). • Increasing size after consecutive profits (overconfidence — treating a lucky streak as skill). • Opening unplanned trades to 'not miss the opportunity' (FOMO-driven overtrading). • Holding losing positions hoping for a recovery (the 'it'll come back' that turns a small loss into a catastrophic one). The asymmetry of the two errors: cutting winners short and letting losers run is the single most destructive behavioural pattern, and it is exactly what loss aversion pushes us to do. The net effect is a negative R/R distribution driven entirely by psychology, not by the quality of the entries. The institutional frame — BEHAVIOURAL BIASES AS EDGE LEAKS: Every bias is a small, systematic leak in your expectancy. Loss aversion leaks by truncating your winners. Confirmation bias leaks by making you see only the evidence that supports your position. Recency bias leaks by making you over-weight the last 3 trades. Over a year of trading these leaks compound into the difference between a profitable and a blowing-up account — even with identical entries. Professional desks train traders to recognise their own bias signature the way an athlete trains technique; it is not optional, it is the core of the job. The key: profitable trading doesn't require eliminating emotions (impossible) but acting according to the plan DESPITE the emotions. The plan exists precisely to externalise decisions so that, in the moment of emotional pressure, you don't have to decide — you execute.