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The strategy usually isn't the problem — the reaction to it is.
Everything covered so far — chart reading, position sizing, stop-losses, risk-reward — is a set of rules. Trading psychology is what determines whether a trader actually follows those rules once real money and real emotions are involved. Most trading losses trace back not to a lack of knowledge, but to a well-known set of psychological patterns that quietly override good decisions in the moment.
FOMO is the urge to jump into a trade simply because a stock is moving fast and other traders seem to be profiting from it — not because it fits any actual setup or plan. It's driven by the discomfort of watching a move happen without being part of it, and it tends to push traders into chasing price at exactly the point where a move is most extended and most likely to reverse.
Illustration
A stock jumps 8% in an hour on no clear news. A trader who had no position, and no plan to trade this stock, buys in at the top purely because the move looks exciting — right as the early buyers who caused the rally start booking profits. The stock pulls back sharply soon after, and the FOMO-driven trader is left holding a loss on a trade that was never part of any strategy.
Revenge trading is the urge to immediately re-enter the market after a loss, trying to "win back" the money that was just lost — often with a larger position and less analysis than the original trade had. It replaces a planned strategy with an emotional reaction, and it's one of the fastest ways a single manageable loss turns into a much larger one.
Illustration
A trader takes a stop-loss and loses ₹5,000. Instead of waiting for the next valid setup, they immediately enter a much larger position with no clear entry logic and no defined stop, purely to recover the loss fast. That position moves against them too, and the ₹5,000 loss becomes ₹15,000 within the hour — a single bad trade tripled by an emotional reaction to it.
Loss aversion is the tendency to feel the pain of a loss more strongly than the pleasure of an equivalent gain. In trading, this shows up as a very specific and damaging pattern: holding onto losing trades far too long, hoping they'll recover before the loss becomes "real," while selling winning trades too early to lock in a gain before it can disappear. This directly works against the risk-reward math covered earlier — it lets losers run and cuts winners short, exactly backwards from what a favorable risk-reward ratio requires.
A string of winning trades can quietly convince a trader they've "figured out" the market, leading to larger position sizes, skipped stop-losses, and looser rule-following — right when discipline matters just as much as it did before the streak started. Markets are probabilistic, and a winning streak often reflects a run of favorable conditions as much as skill, which is exactly why overconfidence tends to show up right before a larger-than-usual loss.
Anchoring is the tendency to fixate on a specific price — often the entry price, or a stock's previous high — and let that number drive decisions even after the market conditions that made it relevant have changed.
Illustration
A trader bought a stock at ₹600. It falls to ₹450 on genuinely weaker fundamentals, but the trader refuses to exit, repeating "I'll sell once it gets back to ₹600" — anchoring to the entry price rather than reassessing the trade based on current information. The stock drifts to ₹400 while the trader waits for a number that has no bearing on where the stock is actually headed.
Every psychological mistake above has a direct link to a rule covered earlier in this module.
| Psychological Mistake | Rule It Breaks |
|---|---|
| FOMO entries | Trading without a planned setup or stop-loss |
| Revenge trading | Position sizing discipline |
| Holding losers, cutting winners early | Risk-reward ratio and stop-loss discipline |
| Anchoring to entry price | Exiting at the pre-planned stop-loss, regardless of entry price |
1. Trading without a written plan
Without a plan decided in advance — entry, stop-loss, target — every decision gets made in the moment, which is exactly when emotions like FOMO and fear have the most influence.
2. Checking positions too frequently
Constantly watching a live position, especially on styles that don't require it, amplifies every small fluctuation into an emotional event, making it much harder to stick to the original plan.
3. Not reviewing past trades
Without looking back at previous trades, the same psychological patterns tend to repeat unnoticed — a trading journal is one of the simplest ways to actually catch and correct them over time.
4. Treating a rule as optional "just this once"
Every broken rule makes the next one easier to break — discipline erodes gradually through small exceptions, not through one dramatic decision.
Discipline isn't just about rules and emotions — it also means accounting for real costs like STT, brokerage, and slippage on every trade, especially if psychological patterns like revenge trading push you toward overtrading. See Transaction Costs: STT, Brokerage & Slippage for the full breakdown, including the 2026 STT hike on F&O.
Key Takeaway
Most trading losses come not from a lack of knowledge but from well-known psychological patterns — FOMO, revenge trading, loss aversion, overconfidence, and anchoring — that override a trader's own rules in the moment. Every one of these connects directly back to the discipline covered earlier in this module: having a plan before entering, sizing positions sensibly, and respecting a stop-loss regardless of how the trade feels in real time.
It can be improved with practice — having a written plan, keeping a trading journal, and reviewing past mistakes are all concrete habits that reduce the influence of emotion over time, regardless of personality.
A fresh loss creates an urge to immediately "fix" it, which feels productive in the moment even though it usually leads to a less-planned, higher-risk trade than normal.
No — even experienced traders feel it. The difference is usually that experienced traders have rules and habits in place that catch the impulse before it turns into an actual trade.
A trading journal is a simple record of each trade — entry, exit, reasoning, and outcome. Reviewing it over time makes recurring psychological patterns much easier to spot than relying on memory alone.
Many experienced traders deliberately step away after a loss, specifically to avoid revenge trading — a short pause helps separate the next decision from the emotional reaction to the previous one.
They're both risks in different situations — fear tends to cause missed opportunities or early exits, while overconfidence tends to cause oversized losses, often after a winning streak lowers a trader's guard.
Anchoring is fixating on a specific price (like entry price) as a reference point regardless of current conditions, while loss aversion is the broader tendency to feel losses more strongly than gains — anchoring is often what fuels loss aversion in a specific trade.
Disclaimer: This article is for general educational purposes only and does not constitute personalized financial, investment, tax, or legal advice. Figures, rates, and rules mentioned may change over time — verify current details with an official source or a qualified professional before making financial decisions.