Price tells you what happened; volume tells you how much conviction was behind it. Volume is the number of units traded in a period — the participation. A move on heavy volume reflects broad agreement; the same move on thin volume can be a handful of orders pushing an empty book, and it tends not to last.
Volume confirms trend
- Rising price on rising volume — healthy advance; buyers are committing.
- Rising price on falling volume — weakening; the move is running out of fuel (a divergence to respect).
- Falling price on rising volume — strong distribution; sellers in control.
- Falling price on falling volume — a drift that may be a pause rather than real selling.
Breakouts need fuel
The single most practical use of volume is filtering breakouts. A breakout through a level on a clear volume surge is far more trustworthy than one that limps through quietly — the quiet one is often a stop-hunt that snaps back. Demand the volume before you trust the break.
Climax volume
An enormous volume spike after an extended move often marks exhaustion, not continuation. A selling climax — capitulation — is the point where the last forced sellers finally hit the bid, and it frequently precedes a bounce. A buying climax does the reverse at tops. Extreme participation is as often an ending as a beginning.
A crypto caveat
Crypto volume is fragmented across dozens of venues, and some report inflated or wash-traded figures. Trust aggregated volume from major venues over a single small exchange's number, and lean on order-flow tools (taker buy/sell volume) that show the aggressive participation directly — which is exactly what the live dashboard measures.