Trading Volume: What It Is & How It Affects Stocks

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How Does Volume Affect Stocks?

If a stock with a high trading volume is rising, it means there is buying pressure, as investor demand pushes the stock to higher prices. On the other hand, if the price of a stock with a high trading volume is falling, it means more investors are selling than buying.

Tip: Volume is the number of shares of a stock that have been transacted over a certain period of time. Volume is usually quoted for a single trading day.

The most common timeframe to use when talking about volume in stocks is daily. The average daily volume is the average number of shares traded per day over a certain number of days, often a year.

When a stock has an unusually high volume, it means there is new public information and investors are reacting. Sometimes, it’s not clear why a stock’s price is rising or falling.

Stocks with low trading volumes can be difficult to sell because there may be little buying interest. Additionally, low-volume stocks can be volatile because there are fewer traders. Lastly, low-volume stocks may be more expensive to trade as the spread between the ask and bid price tends to be wider.

When considering volume while evaluating a particular stock, investors might want to assess how difficult it could be to dispose of their shares if they decide to sell. If a stock price is plunging on high volume, some contrarian investors may consider buying, but such a strategy can also prove risky. Sometimes a contrarian bet can pay off, but it depends on the company and what’s happening with it.

Some investors use volume as a technical indicator when looking at a stock chart. Some examples of technical indicators include the on-balance volume, the volume price trend indicator and the volume relative strength index.

The on-balance volume is a momentum indicator which uses volume flows to predict movements in a stock price. The indicator helps traders determine whether the general market is bullish or bearish on a particular stock. The volume price trend indicator helps investors figure out the direction of a stock and the strength of changes in the price. The volume relative strength index measures the speed and change in volume in an attempt to gauge price trend changes.

How Volume Is Used In Trading

Volume can be an indication of market strength, so here’s how to read stock volume. When a stock is rising, it indicates strength. Investors can make an assessment of how convicted traders are about a particular stock, or the market in general. High volumes indicate a strong conviction with the direction in which the stock or market is moving. However, volumes are not revealing of the reason for the market trend, so investors will have to research to find out why the trend is occurring.

Volume can also be used to determine when the market has gotten exhausted with the direction of a particular stock. When there’s a sharp change in the price and a sharp increase in volume, it suggests the end of the trend. Investors who are afraid of missing out tend to buy high, resulting in a sharp increase in volume. However, when everyone has bought a stock, the price stagnates and then falls because the market has exhausted all buyers interested in the stock.

On the other hand, when a stock has bottomed out, many investors have been forced out by the falling price, causing high volumes and increased volatility. Volume then declines after the spike, although it may change again in the long term.

A key bullish indicator is when a stock price is falling but volume is increasing, ahead of a share price rebound, followed by another decline. If the stock price doesn’t fall below the previous low when it declines the second time, and volume is down during that second decline, it is usually a bullish indicator.

Tip: Traders use volume in combination with other indicators to determine market trends and make educated guesses about where a stock price will go next, so that they can determine if it would be good for their portfolio.

What Is A Good Volume For A Stock?

Some may wonder whether higher trading volumes are good for stocks. There is no clear definition of what good volume is for stocks. In fact, sometimes volumes may increase for reasons like stock splits or news items.

Instead, it makes more sense to look at volume as part of the big picture when evaluating a particular stock. Traders usually use volume in combination with other factors like whether the price is declining or increasing, and how much volatility there is.


In conclusion, the trading volume of a stock reveals to investors how many shares are being transacted. Investors combine this data with other information in their investigation into whether a stock price is likely to increase or decrease. Volume doesn’t always indicate whether reversals are about to occur, but it does offer traders some insight into what is likely to happen.

As presented above, investors will have an easier time selling a stock when the price is rising with high volumes. When a stock is not traded very often, and there is limited buying interest, an investor may have a difficult time unloading their shares. High volumes can indicate bullish or bearish sentiments and the level of investor conviction regarding a particular stock.

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