Identifying a cyclical business is relatively easy. They often exist along industry lines. Automobile manufacturers, oil companies, and steel or aluminum producers are classic examples. Consider Ford or General Motors. Demand for their products is almost entirely connected to the level of personal income nationwide, which is a measure of the broad economy's health. When a recession or even slight economic downturn becomes visible on the horizon, these businesses begin to lose value almost immediately (and for good reason. When a family member is laid off, or disposable income gets tight, people put off buying a new car.)
A closer look at General Motors gives investors a perfect understanding of the cyclical concept. Consider the earnings history for the car manufacturer over the past ten years: 2001 = $1.77, 2000 = $6.68, 1999 = $8.53, 1998 = $4.18, 1997 = $8.62, 1996 = $6.07, 1995 = $7.28, 1994 = $6.20, 1993 = $2.13, and 1993 = (-$4.85).
Thinking back to the early 90's, investors will remember that the United States was in the midst of a recession and the Persian Gulf War. The economy as a whole was not in terrific shape. In the pursuing years, the economy picked up and roared into the greatest bull market this country has ever seen. The successive climb is profits in visible throughout the entire decade (notice 1998 when Wall Street was concerned stock prices were overvalued and the economy was, for a moment, slightly unstable. These events led straight to GM's bottom line, with a 50% decline in profits over the course of the year.)
The company's most recent annual report reveals earnings were down more than 73.5%. This was the first full year after the economy began to correct itself, and like all cyclicals, General Motors was one of the first companies to feel the impact.
How to Value Cyclical Stocks
This presents the obvious problem of valuation. How much should an investor be willing to pay for a cyclical business?Ben Graham, the "Dean of Wall Street" and father of value investing, came up with a solution almost seventy years ago. He maintained that an investor should pay based on the average earnings of a cyclical business for the past ten years. Historically, this time frame has covered an entire business cycle, evening out the highs and lows.
Had an investor valued GM in 1999 when earnings per-share were $8.53, they would have likely paid many times what the company was worth. Instead, they should have based their estimate of future earnings on 1.) the historical growth rate of General Motors, and 2.) the average earnings of $4.66 per share over the past decade.

