Read the Lines · Volume
What Is Trading Volume?
Participation, not prediction.
Trading volume is the amount of a security traded during a period. On a daily share chart, volume tells you how many shares changed hands that day. It helps show how much participation sat behind a price move, but not whether that participation guarantees continuation.
Quick answer
Why does volume matter?
Because the same price move can mean different things with different levels of participation. A 5% move on three times normal volume tells you more people or capital were involved than the same 5% move on very thin activity.
Does high volume mean buyers were stronger?
Not automatically. Every completed trade has a buyer and seller. What matters is the relationship between activity and price: where price moved, where it closed, whether the move held and what happened next.
High volume with a strong close near the highs tells a different story from high volume with a failed spike and close near the lows.
Why is liquidity different from volume?
Volume tells you how much traded. Liquidity describes how easily meaningful size can trade without moving price too much. A stock can print a large one-day volume spike and still be structurally illiquid most of the time.
That distinction matters especially in smaller ASX companies where spreads and isolated trades can distort the chart.
BowerLine rule
Always ask “relative to what?”
A raw volume number is rarely enough. Compare it with the stock’s recent history, its normal liquidity and the event that may have caused the activity.
Important information: This page provides general educational content about technical analysis. It does not provide financial product advice or recommendations.
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