Attached is a chart of the Dow Transports and then the Dow Industrials in order to show how the 100 year old Dow Theory works. On the chart I have two captions pointing out two different timeframes. The black lettering is the shorter time frame and shows both the Dow Jones Industrials and Transports printing a high, a low, and then a new high. Because both of these resulted in new highs above the previous high (in Novemeber and December 2010), they confirmed a shorter term Dow Theory buy signal.
On the longest time frame, however, neither index has made a new high above the previous high (2007) and thus neither index has confirmed the long term buy signal.
The Transports are getting close to making a new high. If that occurs then we will look toward the Industrials to confirm the hew high by surpassing its 2007 high. Obviously this has a long way to go and will leave a lot on the table, but that's the way a trend following technique works.
If the Industrials fail to confirm the new high, and go on to post a high, a low, a lower high, and then a lower low (all below the 2007 top), that will be a Dow Theory Non-Confirmation and a pending sale signal. If that occurs and then the Transports do the same, that will be a Dow Theory all out sell signal, on the shorter black time frame.
Dow Theory can work at all time frames, but for this analysis I have just used the 2 longest time frames.
For more on Dow Theory and how it helped foreshadow the 2008 bear market in a January 2008 post, click on 'Dow Theory' to the right in the Labels Section.
Good Luck!
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