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Volume shows how much a financial asset has been traded over a set period of time. Find out how to use volume data correctly to add an important and useful edge to your trading.
Volume trading is when traders use volume – the amount a particular asset is traded over time – to look at the significance of certain moves within the markets.
Volume plays an important role in trading for many, but is an element that is typically overlooked by retail traders for a number of reasons.
One of the most difficult elements for traders seeking to utilise volume as part of their trading strategy is the question over whether the data being provided by their broker is reliable. Many of the brokers who provide volume data will be supplying the volume of trades placed by their clients. This is in stark contrast to the total market volume, which would play a much more significant role in understanding where the market will go next. The problem often lies in the fact that such data costs money, and certain markets are easier to obtain data for than others.
Consider the forex market, a trillion dollar a day exchange that involves transactions across a host of platforms. The decentralised nature of the FX market makes it more difficult to quantify. It is also worthwhile noting that volume will often reflect peaks and troughs in trading activity according to the time of the day. For instance, the FTSE 100 will traditionally see a sharp rise in volumes at both the open (crossover with Asia) and close (crossover with the US) of the market.
Volumes are typically seen as a confirmation tool. If we see an upward surge in price, the question over whether it is accompanied by a big uptick in volumes will provide significant information over whether that price rise is something worth paying attention to.
As a general rule, a sharp market move that is accompanied by a significant rise in volumes would provide a trader with greater confidence that the market in question will maintain that trajectory in the future.
Another way you can use volume is through noting how it supports or doesn’t support each wave on a market. An uptrend with rising volumes on the upwards legs and falling volume on the retracements is expected to continue in that direction. However, it makes sense to be wary of an uptrend where volumes rise on the downward retracements, only to decline when the market moves higher.
Ultimately this is a case of conviction, and a market move that is built upon low volumes is obviously less convincing than a widespread involvement in a round of buying. When volumes increase during a price rise, yet fall during a price drop, that is bullish. Conversely, if volumes increase during down moves, yet decrease during upward price moves, this would be a bearish signal.
The DAX chart below highlights this phenomenon, where a downtrend is confirmed via the use of volumes. Rising volumes on down moves, coupled with decreased volumes on the upwards rebounds paves the way for another break lower.
Another form of market analysis that can be enhanced via the use of volume data is through pattern confirmation. Reversal patterns can provide a trader with a potential trading opportunity that goes against the trend. However, such countertrend trading that can have innate risk, thus raising the value of a confirmation tool. Volume can provide that tool, with high volumes on a pattern completion adding greater confidence in that move.
The example below is a double top pattern, where we saw a bearish confirmation as provided by a ramp up in volumes on the break down below 0.74. The countertrend volume shifts that preceded that breakdown also added to the feeling of a potential shift for the index. This ability to see participation on a breakout heightens the value of such a move, bringing a greater degree of confidence that the reversal will have legs rather than produce a fake-out or false signal.
Volume can provide clues for a market when attempting to break out following a period of consolidation. When a market trades within a range or a consolidation phase, traders will be keeping a close eye on the potential breakout and resumption of trend (or reversal). Volume can help with that, confirming a breakout from the pattern in much the same way as we have seen with a reversal pattern.
The EUR/AUD chart below highlights a phase of consolidation set within an uptrend at the beginning of 2018. The expectation would be for a bullish breakout before long, yet we do not know when that might occur. The consolidation seen throughout January 2018 started with a decline in price and volumes. With the price and most notably volume on the rise in the second half of the month, it is clear that a breakout from this pattern amid continued rising volumes could be more reliable than one without that rise in volumes.
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