In the
last post, we left off with the idea that we have limited information on volume; namely an overall count, a correlation of volume with price and the direction of those prices. Given this limited data, and after looking at literally hundreds of thousands of charts over the years, I would suggest that the following statements are true and useful when analyzing volume:
- If we have daily volume, we can construct a moving average of volume
- If volume on a given day is much higher or much lower than the average volume, then that probably has some significance
- For definitions sake, we can assume that an up volume is a day where the closing price today is higher than the closing price yesterday. A down volume day would be the opposite
- We can also assume that the interpretation of volume will likely be impacted by the underlying trend of the stock being examined
- Volume needs to be interpeted as part of the overall picture. Volume and price go hand in hand and although volume will precede price in some cases, interpreting volume without the help/context of price data is like panning for gold in your bathtub
- Not only do you need to interpret volume in the context of price action in the stock you are examining, but you also need to consider price action in that stock's sector and the general market as well
All of these things I both believe in and use in my interpretation of volume. When I look at a chart, I look at both price movements and the volume that accompanies those price movements. For me, the key tell in a chart is whether or not volume gives us more information about why price is doing what it's doing. In some cases, it gives us no additional but in those cases where it does, it strengthens our belief in what the future price action should be based on our intrepretation of what that volume and price tell us.
The simplest way to consider what volume tells us is to look at some charts. Rather than picking charts in the past and saying, here's what it should have told us, instead I'll pick current charts and tell you what I believe it is telling us now.
Distribution Versus Correction
The difference between these two words is critical. Distribution is a continual pattern of selling into strength to distribute your shares to others. When large holders of a stock distribute, that stock cannot be owned until they have finished. A correction is usually reasonably short in duration and the stock can be bought when the correction has ran it's course. Stocks that are distributed take a long time to get back to their previous highs. Stocks that correct can do so relatively easy. When you are looking at a chart that is undergoing either distribution or a correction, this is what you are attempting to decide; which is it?
Chart Ambushed
Let's start with a chart showing a very bullish stock that has suddenly been ambushed. I've chosen the chart of
MIND which has just suffered a huge spill moving from a high of $26 to $20 in about 8 days. Now I wouldn't want to buy this stock right here, right now, but I would suggest that the volume spikes signify scared longs taking profits rather than large holders of the stock liquidating and never wanting back in. How can I draw such a conclusion?
The first observation is that we had a huge run up in price without a consolidation from $19 to $26 and that was after only a brief consolidation that followed a run from $12 to $19. So essentially, prices more than doubled without much of a break and in all of this transpired in about a 3 month time frame. This stock needed to be ambushed.
A second observation is that the price correction has occurred during a total of 3 days. Unless some fund which had a large position in this stock either went belly up or decided that they had to get out at any price, then this is instead liquidation by longs that were either overextended or ready to bail out at any price. If you consider this objectively, it was likely the latter case, not the former.
Thirdly, the price depreciation accompanies a sell off in the general market. This also suggests profit taking.
Lastly, the down volume bars are not as large as the up volume bars of the recent past. When this occurs, more weight is added to the idea that we are correcting, not distributing.
Given the above, this is likely a stock that is NOT undergoing distribution but instead a correction. That doesn't mean you should buy it here, but it does mean that it can be bought again and relatively soon probably.
Here's another chart that looks about the same as MIND.
In this chart, ISRG, the correction is even deeper. That's another item you have to consider. I like to consider the 50 and 200 day moving averages as key to understanding stocks. If a stock closes under the 50 day moving average, it has an increased probability of falling further towards the 200 day moving average; not guaranteed, but increasing likely. Although ISRG has the same type of volume pattern reads as MIND, it appears likely that it wants to correct as far back as $80 or so which is where we find the 200 day moving average and a large gap up area. Note that the down volume bars are larger than the recent up volume bars. That's a warning sign that the correction is likely deeper and adds a bit more weight to the idea that it could be distribution versus correction. Given that the majority of the signals suggest correction, not distribution, that's my read here as well.
Here's another chart. This is ITMN and it appears to be undergoing distribution versus a correction.
Can you see why? In this chart we see some differences from the prior two. Here we see a stock that traveled fast, like the others towards higher highs but in this case, the highs happen to coincide with previous highs. After a poke higher, a small retrace and a second attempt to reach higher highs, failure set in and then a collapse on gap down move.
Look at the recent volume bars. The three largest volume bars over the past 6 months were down volume days and that's despite a stock that has climbed tremendously in price. Note that the higher high came on lighter volume as well.
My guess is that this stock is likely being distributed, rather than just correcting. It's stocks like these that should be considered as potential short candidates or, if you want to trade long only, avoided. Here's one more.
Distribution or Correction? My take is distribution. Again a double top and then a big gap down on earnings. It's likely those with larger positions will sell any rally attempts in the coming days and weeks leaving this stock under pressure for a reasonably long time.
Down Trends and Volume Tells
Although not foolproof, if you pay attention to price and volume you can read a chart when it is falling in price. You can many times ascertain the important answer as to distribution versus correction. Distribution you can short into or avoid while corrections can provide great opportunities to get long again and again.
In the next issue, we'll look at stocks that are weak, but volume isn't spiking to see what that tells us.