Quote from dalegrief:
Deron,
I was wondering if you could explain or link us to an explanation of how you use volume accumulation/distrubution patterns to decipher the action in the major indexes. I've heard good things about your theory.
Thanks
Dalegrief,
When I began my trading career about 6 years ago, I mistakenly focused most of my energy and attention on chart patterns, support/resistance, trendlines, etc., but rarely paid much attention to broad market volume changes from one day to the next. Although it took me several years to learn, I eventually figured out that studying the changes in volume from day to day is MORE IMPORTANT than any chart pattern because, unlike failed chart patterns, volume never lies! This applies to both volume in individual stocks, as well as the total market volume, but especially with regard to the total market volume. Although I could probably write another book just on volume analysis, I will see if I can summarize within the context of this post.
In a nutshell, my analysis combines broad-market volume analysis techniques, which were originally made popular by William O'Neill of Investors Business Daily, with a shorter time frame for intraday volume analysis. On days when the broad market closes higher, I look for an increase in total market volume compared with the previous day. This is known as an "accumulation day." On days when the broad market closes lower, we also look for an increase in volume, which often confirms the presence of an increase in institutional selling. This is known as a "distribution day." We then measure the number of accumulation and distribution days each week compared with the previous week. The changes from week to week provide us with a "big picture" of what is really happening beneath the surface and provides us with early warning of potential trend changes well before they actually happen. By applying this "big picture" information to a shorter time frame, we can use this analysis as a great benefit to our swing trading. To further explain, I have cut and pasted text from previous
Wagner Daily newsletters in which I have written about volume:
Although it sounds like a cheesy cliche, I truly believe that volume speaks volumes! Besides price, volume is the most important technical indicator you can use to determine the true strength or weakness of an index or stock. Ironically, volume also tends to be the one indicator that novice traders, and even experienced ones, often forget to pay attention to because they get too wrapped up in analyzing trendlines, support/resistance levels, and moving averages. The fact is that none of those other indicators will accurately predict price movement as much as volume. Actually, there are many professional, profitable traders who base their entire analysis purely on price and volume without ever looking at a single chart.
Volume is such an important indicator because volume leads price. Rarely will you ever see a sustained breakout or breakdown without a correspondingly sharp increase in volume. Have you ever bought a breakout in an index or stock that you thought was a "no-brainer" because all the technicals looked good but the breakout failed anyway? Chances are that the volume did not confirm the breakout by not seeing a correspondingly higher spike in volume. The same thing often happens on the downside. Selloffs and breaks of support often do not follow-through if the volume does not simultaneously increase.
When analyzing volume, we are more interested in how much volume an index or the total market is trading relative to itself, NOT just how much volume it trades in absolute terms. For example, we don't care whether a sector HOLDR (such as SMH) normally trades 1 million shares per day or 3 million shares per day. What really matters is how does today's volume compare with its average daily volume? If the index you are trading has an average daily volume of only 300,000 shares, but has already traded 400,000 shares by 11:00 am EST, that indicates very high volume RELATIVE TO ITSELF and it will probably end up trading two to three times its average daily volume. Therefore, if we are saying in the ETF Real-Time Room that a particular ETF or the broad market is showing high volume, we are stating that it is showing strong volume RELATIVE to its own average daily volume; we are NOT referring to an absolute number.
Because volume leads price, thin market volume tends to create choppy markets and causes trends to reverse easily. If you have been actively trading during the past several weeks, you may have noticed how often the intraday trends reversed and how choppy the market has been in general. This can simply be attributed to the seasonal decrease in market volume. The lack of follow-through occurs because it only takes a small amount of buyers or sellers jumping into the market to move prices in the opposite direction of the trend. However, once those buyers or sellers are done, prices will often revert back to where they previously were, thereby causing a lack of follow-through and choppy conditions. Any trends that form on light overall market volume must be taken with a grain of salt and an extra ounce of caution. Light volume selloffs usually indicate a lack of buyers rather than an abundance of sellers. Conversely, light volume rallies often fail because they are based on a lack of sellers, rather than an abundance of buyers. Therefore, it only takes a few big sellers to step in to make prices collapse. The rally leading up to the September 19 highs lacked an increase in conviction and showed decreasing volume compared with the previous rallies. That is why the selloff in the subsequent week erased an entire month of gains. Overall, it is usually not a good risk to enter new positions when the total market volume is very thin.
On the other hand, average or heavy volume often causes trends to form and enables the market to follow-through. Even if a small group of sellers jump into the market during a high volume uptrending day, the uptrend will usually continue because there are enough buyers to absorb the selling volume. If you have ever watched an ETF trend up the entire day without even a minor pullback even when the market was weak, chances are that the underlying components of the ETF were probably trading on very high volume that day, enabling the ETF to maintain its price even when sellers stepped in. The same thing is true of downtrending indexes in that the downtrend is more likely to continue if the selloff if on heavy, or at least average, volume. It indicates there are enough sellers to continue the downward momentum even if some buyers step in.
In order to determine whether total market volume is heavy or light, we plot both a 5 and 50-day moving average to look for changes in volume. The 5-day moving average shows us the average daily volume for the past 5 trading days, which we have found to be a good time horizon to indicate short-term changes in volume. In general, we trade more aggressively when the total market volume is above the 5-day moving average because it indicates a short-term increase in volume, which typically leads to continued follow-through in pricing. However, when total volume is below the 5-day moving average, it usually leads to a lack of direction and less desirable trading conditions. The 50-day moving average gives us a longer term view of volume, which is useful in confirming multi-month trends (or lack thereof). We also use the crossover of the two moving averages as an indicator to a change in sentiment. When the 5-day is above the 50-day MA, it typically indicates a more sustained increase in volume. But, if the 5-day is below the 50-day MA, it points to a sustained period of decreased volume (and hence a lack of interest). Below is a daily chart of the NYSE total market volume, along with the moving averages discussed above:
While daily charts are great for studying volume over a several day to one-week period, they do not work very well for assessing intraday volume. Instead, we simply switch to an intraday chart, usually a 15-minute period, and simply compare volume based on the time of day. We do this by measuring the volume after a specified number of bars, with each bar representing 15 minutes. For example, if it is 10:30 am EST, we would simply look at the total volume after the first 4 fifteen minute bars and compare with the volume of the first 4 fifteen minute bars of the previous day. That will give you an early indication as to whether or not volume is on track to exceed the previous day's volume. By using this intraday volume analysis early each morning, you can often predict how high or low the volume will come in each day. Note, however, that we do not use moving averages on our intraday volume charts. The 15-minute intraday chart of the NYSE volume below illustrates this concept:
By diverting more of your attention to closely monitoring total market volume each day, you will begin determining which conditions are most ideal to increase your share size and which periods indicate a reduction is necessary. The lighter than average volume over the past week has prompted us to reduce the quantity of new trades, as well as our average position sizes. However, when volume begins increasing again (most likely after earnings are digested next week), we will gradually become more aggressive depending on overall market conditions.
Remember that volume leads price and moves both to the upside and downside are rarely sustained without volume. If you formulate a plan to actively begin monitoring volume on an intraday and daily basis, you should begin seeing increased accuracy with your chart patterns.