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Price Plus Volume

beginner6 min read

Price tells you what happened; volume tells you how much to believe it.

VolumeThe number of shares or contracts traded in a period. is the number of sharesA unit of ownership in a company. traded in a period — the bars usually shown beneath the price chart. Price tells you what happened (it went up or down); volumeThe number of shares or contracts traded in a period. tells you how much conviction was behind it. Reading them together is one of the most reliable habits in technical analysisStudying price and volume to forecast moves..

A price move is only as trustworthy as the volumeThe number of shares or contracts traded in a period. behind it. A breakoutWhen price decisively pushes through a support or resistance level. on heavy volumeThe number of shares or contracts traded in a period. is a shout — many participants are committing, so the move is more likely real. The same breakoutWhen price decisively pushes through a support or resistance level. on thin volume is a whisper — few are behind it, so it’s far more likely to fail. Volume is the lie-detector for price: it tells you whether the crowd actually means it.
ExampleTwo stocks both break above resistancePrice zones where buying (support) or selling (resistance) tends to dominate. at ₹100. One does it on triple its average volumeThe number of shares or contracts traded in a period.; the other on half. The first tends to hold and run; the second often falls back below ₹100 within days — a classic low-volumeThe number of shares or contracts traded in a period. fakeoutA breakout that quickly reverses back into the range.. Same price action, opposite reliability.
Key takeawayPrice shows what happened; volumeThe number of shares or contracts traded in a period. shows how much to believe it. Moves on heavy volumeThe number of shares or contracts traded in a period. are confirmed and more reliable; moves on thin volume are suspect. Always read price and volume together.
FAQs
What counts as “high” volume?

It’s relative — compare the period’s volume to that stock’s own recent average (many charts show an average-volume line). A bar well above its average is “high” for that stock; comparing raw volume across different stocks is meaningless because they trade in very different sizes.