The DJIA, a price-weighted average (adjusted for splits and dividends) of 30 large companies on the New York Stock Exchange, peaked on October 9, 2007 with a closing price of 14,164.53. On October 11, 2007, the DJIA hit an intra-day peak of 14,198.10 before starting to screech for no reason. The US stock market peaked in October 2007, when the Dow Jones Industrial Average index exceeded 14,000 points. It then entered a pronounced decline, which accelerated markedly in October 2008. By March 2009, the Dow Jones average had reached a trough of around 6,600. Four years later, it hit an all-time high. October 19 2007: 4:15 PM EDT. when the stock market resumed trading after having been closed for four sessions after the 9/11 terrorist attacks. The biggest market crash in history happened on