

Position sizing refers to deciding how much capital to allocate to a single trade based on your account size and the trade's risk — rather than trading a fixed number of shares or lots regardless of the setup.
Even a good trading strategy can hurt your account if position sizes are too large relative to your capital. Proper position sizing keeps any single trade's potential loss within a level you can absorb, protecting your capital for future trades.
Position sizing is generally based on three things: your total trading capital, the percentage of that capital you're willing to risk on the trade, and the distance between your entry price and your stop-loss.
More volatile stocks typically need a wider stop-loss to avoid being triggered by normal price swings, which means a wider risk per share — and, to keep the same rupee risk, a smaller position size than a less volatile stock.
Many traders use around 1-2% of capital per trade, but the right percentage depends on personal risk tolerance and trading strategy.
No — they work together. The stop-loss defines your exit level, and position sizing decides how many shares to hold at that level of risk.
Yes, the same capital-and-risk-based logic can be applied to stocks, F&O, or other instruments, though instrument-specific rules like lot sizes may apply.
Not necessarily — it can vary trade to trade based on the stop-loss distance and the setup's risk.