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What does Volume tell you in Trading?

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Used in a sentence

The breakout came on triple the average daily volume, lending conviction to the move.

The reader highlighted one word mid-article. Clicked made the trading term “average daily volume” easy to understand:

Explained in three depths

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Overview

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Volume is the number of shares that changed hands during a period, whether a day, an hour or a minute. It measures participation: how many investors actually acted. A rise on heavy volume has a crowd behind it, while the same rise on thin volume has almost nobody.

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Detail

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One accounting fact first: every trade has both a buyer and a seller, so volume never means more buyers than sellers. It means more activity, and the price's direction tells you which side was more eager. Volume is read by comparison to the stock's own recent average, commonly the last 20 days, because raw numbers mean nothing across different stocks. A move on well-above-average volume, say three times the usual daily figure, is taken seriously, because many participants committed real money to it. The same move on far-below-average volume is treated as fragile, since few people participated and few would need to change their minds to reverse it. Volume never says where price goes next; it says how much agreement stood behind where it just went.

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Analogy

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Election turnout. A mayor who wins 70% of the vote on 5% turnout has a very different mandate than one who wins 70% on 80% turnout, since the result is identical but the weight behind it is not. Price is the election result; volume is the turnout.

AI explanations may contain errors · Not professional advice

Same facts, different vibe — Slang mode 😎

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Overview

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Volume is how many people actually showed up. Price tells you what happened; volume tells you how many were involved. A stock up 10% on tiny volume is three guys high-fiving in an empty room. 😎

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Detail

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The rules chart people actually use: compare the stock to its own average, where three times normal means something is happening and half of normal means nobody cares. A breakout with no volume behind it is suspicious, because a move few people joined is easy to reverse. A monster volume day after months of climbing can be the blow-off: everyone who was ever going to buy just bought, all at once, and the room is now empty. And the accounting truth nobody remembers is that every share bought was sold by someone. Volume isn't more buyers, it's more action, and the direction of the price tells you which side was sweating. 😎

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Analogy

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It's a petition. The same demand with 12 signatures is a piece of paper; with 12,000 it's a force. Price is what the petition says, and volume is how many people actually signed it.

AI explanations may contain errors · Not professional advice

Formal definition — The same term, explained the usual way

Volume denotes the quantity of shares transacted within a given interval and serves as a measure of participation. Analytical convention evaluates volume relative to the security's own trailing average, with elevated volume interpreted as confirming the significance of concurrent price movement, subdued volume as indicating fragility, and climactic volume following extended trends as potentially marking exhaustion. As each transaction comprises both a buyer and a seller, volume reflects aggregate activity rather than directional imbalance.

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