// Definition
Volume is the amount of an asset traded during one candle. It shows how much participation, and therefore how much strength, is behind a price move.
Explained simply
Volume is usually shown as bars under the chart, one for each candle. Taller bars mean more was traded. The colour usually follows the candle: green when it closed up, red when it closed down.
Think of volume as the push behind a move. A breakout on strong volume has many traders behind it. The same breakout on weak volume is easier to reverse.
Tip
Always compare a volume bar with the recent average. A bar only means something relative to what is normal for that market.
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For education only, not financial advice. Trading is risky and you can lose money.