Why the same candle means different things at different volumes, and how liquidity should shape which instruments you trade.
Key takeaways
- Volume confirms or questions a move; it rarely leads it.
- Liquidity determines your true cost of entry and exit.
- Illiquid stock options are the most common hidden cost in retail portfolios.
A breakout on twice the average volume and a breakout on half of it are different events wearing the same shape. Volume tells you how many participants agreed with the move, which is the closest thing a chart offers to a confidence measure.
Liquidity is the practical cousin of volume. It decides your spread, your slippage and, crucially, whether you can exit at all when the tape turns. Traders routinely calculate risk from the stop price and forget that an illiquid instrument may not offer that price.
In Indian markets this shows up most sharply in stock options. Far strikes on mid-cap names can have spreads of several percent, which means a trade must move meaningfully in your favour just to break even.
A simple rule keeps you safe: if you cannot see continuous two-sided quotes with a tight spread and reasonable depth, do not build a position you would need to exit quickly.
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