Against The Top Down Approach To Picking Stocks
Wednesday, March 24th, 2010If you have heard fund managers talk about the way they invest, you know a great many employ a top down approach. First, they decide how much of their portfolio to allocate to stocks and how much to allocate to bonds. At this point, they may also decide upon the relative mix of foreign and domestic securities. Next, they decide upon the industries to invest in. It is not until all these decisions have been made that they actually get down to analyzing any particular securities. If you think logically about this approach for but a moment, you will recognize how truly foolish it is.
A stock’s earnings yield is the inverse of its P/E ratio. So, a stock with a P/E ratio of 25 has an earnings yield of 4%, while a stock with a P/E ratio of 8 has an earnings yield of 12.5%. In this way, a low P/E stock is comparable to a high – yield bond.
Now, if these low P/E stocks had very unstable earnings or carried a great deal of debt, the spread between the long bond yield and the earnings yield of these stocks might be justified. However, many low P/E stocks actually have more stable earnings than their high multiple kin. Some do employ a great deal of debt. Still, within recent memory, one could find a stock with an earnings yield of 8 – 12%, a dividend yield of 3- 5%, and literally no debt, despite some of the lowest bond yields in half a century. This situation could only come about if investors shopped for their bonds without also considering stocks. This makes about as much sense as shopping for a van without also considering a car or truck.
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