Berkshire Hathaway Letters to Shareholders: 1965-2024

by Warren Buffett

Let’s look first at common stocks. During 1987 the stock market was an area of much excitement but little net movement: The Dow advanced 2.3% for the year. You are aware, of course, of the roller coaster ride that produced this minor change. Mr. Market was on a manic rampage until October and then experienced a sudden, massive seizure. We have “professional” investors, those who manage many billions, to thank for most of this turmoil. Instead of focusing on what businesses will do in the years ahead, many prestigious money managers now focus on what they expect other money managers to do in the days ahead. For them, stocks are merely tokens in a game, like the thimble and flatiron in Monopoly. An extreme example of what their attitude leads to is “portfolio insurance,” a money-management strategy that many leading investment advisors embraced in 1986-1987. This strategy—which is simply an exotically-labeled version of the small speculator’s stop-loss order dictates that ever increasing portions of a stock portfolio, or their index-future equivalents, be sold as prices decline. The strategy says nothing else matters: A downtick of a given magnitude automatically produces a huge sell order. According to the Brady Report, $60 billion to $90 billion of equities were poised on this hair trigger in mid-October of 1987.