Title : The Indicator Series : The Awesome Oscillator - A Tool to Measure Momentum - FXREVIEWSBLOG
Link : The Indicator Series : The Awesome Oscillator - A Tool to Measure Momentum - FXREVIEWSBLOG
On today's article we will be discussing a very interesting indicator which forms part of Bill Williams "chaos trading" theory in which several indicators are used to attempt to trade the markets profitably. This indicator- called the Awesome Oscillator - was developed as a means to get an idea about short term momentum on a given trading instrument. Within the next few paragraphs you will learn more about how this indicator's values are calculated, what it really tells us about the market and how we can use this information for the building of likely long term profitable automated trading systems. As a part of the "indicator series" this article will attempt to give you an idea about the essence of the indicator and the real nature of the information it conveys.
So what is the Awesome Oscillator about ? What makes it so awesome ? This indicator - usually plotted as a histogram - uses a very simple calculation to measure what we would call "market momentum". The indicator's value is obtained as the difference between a 34 and a 5 moving average calculated around the median price (which is the (high-low)/2 of each bar). Putting it simple, the values are obtained with this simple equation :
Awesome Oscillator = SMA(MEDIAN PRICE, 5)-SMA(MEDIAN PRICE, 34)
You might have also noted that the awesome oscillator contains red and green colors which depend on the increasing or decreasing nature of the values. If the last value is lower than the current values the current bar is green while the opposite case makes the bar red. To sum it up the awesome oscillator tells us if the 34 and 5 period average values of median price are coming closer or falling further apart. When the values are falling apart there is momentum (since short term price is - in average - moving away from the longer term average, when the values are closer then we have the opposite.
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-It may now seem more evident how this indicator might be traded. We can build a system that trades the cross of the 0 line (which is equivalent to the simple moving average cross system of the 34 and 5 period MA values calculated on median price) or we can trade changes in direction (changes from red to green) to attempt to capture changes in momentum which may forecast an eventual cross of the moving averages. However the fact that the oscillator only gives us information about the momentum change taking into account a relatively small number of bars means that its success on lower time frames is bound to be very limited. When using this indicator on time frames lower than the daily you will see that it gives extremely confusing signals since the 34 and 5 median calculated moving averages cross a lot, something that makes the finding of an inefficiency quite hard.
Added to that is the fact that the awesome oscillator momentum "changes" (color changes from red to green) can happen during a single bar and therefore give a lot of fake signals. For this reason most people will advice to trade this indicator on three bar signals to gain a better perspective and eliminate signals that are simply spikes that might only "seem" like changes in momentum. By doing this we can gauge changes in momentum better and build a system that reacts quicker to changes in market direction. Exiting trades when the first opposite bar appears also seems to be a good exit strategy since usually this won't happen after the majority of the large move happens. Of course, the success of such an approach is bound to be minimal on lower time frames, again due to the inherent problems of the low period usage of the awesome oscillator on these charts.
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-Above you can see a USD/CHF daily chart with some of the possible signals during the financial crisis which was a very trending period for this and other currency pairs. You can see here how the awesome oscillator would have captured moves with very good accuracy. Of course, the system is not going to be perfect and under conditions when the 34 and 5 MA comes close for large periods of time the system would suffer large amounts of losses (this is the system's market exposure so that it can get into this very good trades when they develop). The above mentioned signals also allow us to get back into trends after retracements, so they are definitely a necessary compliment since they help us fully exploit large runs without missing a large part (as if we only entered shorts above 0 and longs below 0).
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-So as you see, the awesome oscillator is really not that awesome, it is simply a tool to measure momentum which compares the prices of two simple moving averages calculated on median price values. This information is bound to be useful for the development of a momentum based automated trading system, especially on large time frames - like the daily - where these signals are much more meaningful than on lower time frames when the low periods used by the oscillator will make the finding of inefficiencies extremely hard, if not actually impossible.
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