ARE YOU AN INTELLIGENT INVESTOR?
In 1998, Long-Term Capital Management L.P., a hedge fund run by a battalion of mathematicians, computer scientists, and two Nobel Prize–winning economists, lost more than $2 billion in a matter of weeks on a huge bet that the bond market would return to “normal.” But the bond market kept right on becoming more and more abnormal—and LTCM had borrowed so much money that its collapse nearly capsized the global financial system. And back in the sp ring of 1720, Sir Isaac Newton owned shares in the South Sea Company, the hottest stock in England. Sensing that the market was getting out of hand, the great physicist muttered that he “could calculate the motions of the heavenly bodies, but not the madness of the people.” Newton dumped his South Sea shares, pocketing a 100% profit totaling £7,000. But just months later, swept up in the wild enthusiasm of the market, Newton jumped back in at a much higher price—and lost £20,000 (or more than $3 million in today’s money). Sir Isaac Newton wa...