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own 25 to 50 stocks that the managers declare to be their “best ideas.” That leaves investors wondering whether the other funds run by the same managers contain their worst ideas. Considering that most of the “best idea” funds do not markedly outperform the averages, investors are also entitled to wonder whether the managers’ ideas are even worth having in the first place. For indisputably skilled investors like Warren Buffett, wide diversification would be foolish, since it would water down the concentrated force of a few great ideas. But for the typical fund manager or individual investor, not diversifying is foolish, since it is so difficult to select a limited number of stocks that will include most winners and exclude most losers. As you own more stocks, the damage any single loser can cause will decline, and the odds of owning all the big winners will rise. The ideal choice for most investors is a total stock market index fund, a low-cost way to hold every stock worth owning.

* Graham’s point about chemical and oil companies in the 1960s applies to nearly every industry in nearly every time period. Wall Street’s consensus view of the future for any given sector is usually either too optimistic or too pessimistic. Worse, the consensus is at its most cheery just when the stocks are most overpriced—and gloomiest just when they are cheapest. The most recent example, of course, is technology and telecommunications stocks, which hit record highs when their future seemed brightest in 1999 and early 2000, and then crashed all the way through 2002. History proves that Wall Street’s “expert” forecasters are equally inept at predicting the performance of 1) the market as a whole, 2) industry sectors, and 3) specific stocks. As Graham points out, the odds that individual investors can do any better are not good. The intelligent investor excels by making decisions that are not dependent on the accuracy of anybody’s forecasts, including his or her own. (See Chapter 8.)

* This figure, now known as the “dividend payout ratio,” has dropped considerably since Graham’s day as American tax law discouraged investors from seeking, and corporations from paying, dividends. As of year-end 2002, the payout ratio stood at 34.1% for the S & P 500-stock index and, as recently as April 2000, it hit an all-time low of just 25.3%. (See www.barra.com/ research/fundamentals.asp.) We discuss dividend policy more thoroughly in the commentary on Chapter 19.

* Why is this? By “the rule of 72,” at 10% interest a given amount of money doubles in just over seven years, while at 7% it doubles in just over 10 years. When interest rates are high, the amount of money you need to set aside today to reach a given value in the future is lower—since those high interest rates will enable it to grow at a more rapid rate. Thus a rise in interest rates today makes a future stream of earnings or dividends less valuable—since the alternative of investing in bonds has become relatively more attractive.

* These industry groups, ideally, would not be overly dependent on such unforeseeable factors as fluctuating interest rates or the future direction of prices for raw materials like oil or metals. Possibilities might be industries like gaming, cosmetics, alcoholic beverages, nursing homes, or waste management.

1 Because so few of today’s individual investors buy—or should buy—individual bonds, we will limit this discussion to stock analysis. For more on bond funds, see the commentary on Chapter 4.

2 You should also get at least one year’s worth of quarterly reports (on Form 10-Q). By definition, we are assuming that you are an “enterprising” investor willing to devote a considerable amount of effort to your portfolio. If the steps in this chapter sound like too much work to you, then you are not temperamentally well suited to picking your own stocks. You cannot reliably obtain the results you imagine unless you put in the kind of effort we describe.

3 You can usually find details on acquisitions in the “Management’s Discussion and Analysis” section of Form 10-K; cross-check