Trading Volume — Real Signals vs False Breakouts
High volume confirms a move; low volume undermines it. How to use volume to tell a genuine breakout from a fake one, and read the volume bars on a chart.
What volume is
Volume is how much of an asset was traded in a period. High volume means lots of participants are buying and selling; low volume means few people care right now.
Why it matters
Volume confirms moves. A breakout above resistance on high volume is more likely to be real and continue; the same breakout on thin volume often fades and reverses. If BTC clears 73k on heavy volume, that is more convincing than clearing it on light volume.
Reading the bars
Below the price chart, volume appears as bars — often green on up days and red on down days, taller for heavier volume. A simple reading:
- Uptrend with rising volume: a strong trend.
- Uptrend with falling volume: a weakening trend — be careful.
- Downtrend with rising volume: strong selling — caution if you are holding.
Volume and price together
Price rising on strong volume is healthier than price rising on weak volume, which is prone to reversal. The most convincing buys tend to come when price and volume rise together.
Common mistakes
- Ignoring volume as "too complex." It is not — just look at whether the bars are tall or short.
- Treating high volume as an automatic buy. Volume confirms a signal; it does not create one. Price breaking down through support on high volume is a sell, not a buy.
- Comparing volume across coins. Each asset has its own scale — BTC's volume is not comparable to a small-cap's.
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