Correlation between price development and volume development

Correlation between price development and volume development shows whether volume confirms the overall trend or if it warns of a coming reversal.

Ordinarily volume should increase in the trend direction. In rising trends we want high volume on rises and near tops, and low volume on falling prices and near bottoms. This development signals a healthy stock with ever more optimistic investors, and strengthens an overall positive trend.

Similarly high volume on falling prices and near bottoms in a falling trend will confirm the overall negative trend and indicate it will continue to fall.

Deviations from the above warn of a coming trend reversal.

Normal situations

Volume should increase in the trend direction. The figure shows a rising trend with high volume near tops and low volume near bottoms. Aggressive investors have to pay more to get the stocks that they want. Few investors sell near bottoms, as they are positive to the stock and comfortable keeping it.

 

Decreasing volume in the trend direction warns of a possible trend break. In the figure to the left the buyers have little power, as volume near the last top is low. At the same time, sellers are aggressive when the price falls. This indicates nervous sellers and hesitant buyers, and signals a potential break downward.

 

Trading opportunities

Volume development can indicate trading opportunities. When the correlation between price development and volume development is clearly positive in falling or sideways trends, this may open up for good short term trading opportunities. Such situations often involve high risk, but the upside can be very good.

The best trading opportunities are when the price falls on a low volume in rising trends and approaches the trend floor.

 

Special circumstances

Greatly increasing volume along with a serious price increase can indicate a final rally. Such situations tend to occur when a rising trend has lasted for a long time. Following new positive news or new focus in the media, everyone wants to own the stock. This results in a great and sudden price increase on high volume. If the situation is followed by significant price reduction, it may have been a final rally.

However, please note that rising trends tend to last longer than many investors think, and the stocks often keep rising, even after significant price increases on very high volume.

 

A significant price fall on very high volume in a falling trend may indicate a sell off. Following a long list of negative news, the last investors give up. If the price then rises and volume increases, it signals that the investors have been as negative as they can possibly get and that optimism is returning.

Please note, however, that falling trends often last for a long time, and disappointment is often followed by more disappointment. Beware of buying into the stock after a fall like this, at least until a clearly positive volume development is seen, preferably in combination with a short term positive overall trend. And even then the risk will still be high.

 


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Investtech guarantees neither the entirety nor accuracy of the analyses. Any consequent exposure related to the advice / signals which emerge in the analyses is completely and entirely at the investors own expense and risk. Investtech is not responsible for any loss, either directly or indirectly, which arises as a result of the use of Investtechs analyses. Details of any arising conflicts of interest will always appear in the investment recommendations. Further information about Investtechs analyses can be found here disclaimer. The content provided by Investtech.com is NOT SEC or FSA regulated and is therefore not intended for US or UK consumers.

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