A breakout on rising volume means many participants agreed to transact at the new price. The same breakout on thin volume means very few did, which is why it so often fails back into the range.
In crypto, reported exchange volume has historically included wash trading, so compare across venues cautiously. In decentralised forex there is no true consolidated volume at all - platforms show tick volume, which counts price updates, not contracts.
The mistake it causes: treating forex "volume" as if it were equity volume. It is a proxy, not the thing.
What it proves and what it does not
Volume is how much actually changed hands in a period. It is the participation behind a price move, which is why a breakout on expanding volume is more credible than one on thin trade. What it cannot do is tell you direction: volume has no sign, and high volume appears at both tops and bottoms.
| Price move | Volume | Read |
|---|
| Breakout up | Expanding | Participation, more credible |
| Breakout up | Thin | Often fails back into range |
| Trend continuing | Declining | Momentum fading |
| Sharp reversal | Very high | Capitulation or distribution |
Forex volume is not volume
Because forex has no central exchange, platforms display tick volume, which counts price updates rather than contracts traded. It correlates reasonably with real activity and it is not the same measurement. Any forex strategy built on volume thresholds is built on a proxy, and should be treated accordingly.
Crypto volume has a credibility problem
Reported exchange volume has historically included wash trading, particularly on smaller venues competing for listing rankings. Compare volume across venues sceptically, and prefer order book depth as evidence of real liquidity.
What to do with this
- Use volume to assess conviction behind a move, never to predict direction.
- Check it specifically at breakouts, where it adds the most.
- Remember what you are actually looking at: contracts in crypto and equities, ticks in forex.
