Mastering The Market Cycle: Getting the Odds on Your Side

by Howard Marks

Sir Isaac Newton, who was the Master of the Mint at the time of the “South Sea Bubble,” joined many other wealthy Englishmen in investing in the stock [of the South Sea Company]. It rose from £128 in January of 1720 to £1,050 in June. Early in this rise, however, Newton realized the speculative nature of the boom and sold his £7,000 worth of stock. When asked about the direction of the market, he is reported to have replied “I can calculate the motions of the heavenly bodies, but not the madness of the people.” By September 1720, the bubble was punctured and the stock price fell below £200, off 80% from its high three months earlier. It turned out, however, that despite having seen through the bubble earlier, Sir Isaac, like so many investors over the years, couldn’t stand the pressure of seeing those around him make vast profits. He bought back the stock at its high and ended up losing £20,000. Not even one of the world’s smartest men was immune to this tangible lesson in gravity! (“bubble.com,” January 2000)