Sunday, June 24, 2007

Nifty Fifty means you can overpay for growth stocks

Against the Gods by Peter Bernstein continues to contain a lot of concepts that are enlightening me in my research on investing for income.

He discusses Daniel Bernoulli and the Petersburg Paradox, where Peter tosses a coin until it turns up heads. For every toss of tails, Paul must pay Peter a number of ducats doubled from the previous toss. That is, 1,2,4, and so on into infinity. The expected value of being Peter is infinite, but nobody would pay that.

Then he transitions into the late 1960s and early 1970s when it seemed like the Nifty Fifty stocks were going to go up to infinity, and investors bought their shares as though they were worth any amount up to infinity. As though the real risk was in not owning shares in these stocks rather than in owning them, no matter how expensive.

If you know any stock market history, you know what happened. The market crashed in 1973 and hit terrible lows in 1974. The Nifty Fifty fell even farther than other stocks, since they had farther to fall. They did not surpass their December 1972 peaks again until July 1980.

Yet he also points out that they were good stocks and if you'd bought them at reasonable prices and just held on for the long run, you'd have made good money. They didn't grow into infinity, but they did have good growth prospects.

Bernstein doesn't mention this, but I suspect that their dividends made them worth holding on to. The real risks were in paying too high a price for the income stream and in selling those stocks when the prices were low.




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