Dow Jones Industrial Average. This is one classic example that shows the economy and the stock market does not move in a correlated relationship. World War II, WW2 started on 1 September 1939 and ended on 2 September 1945. But the stock market started its bull run from 16 November 1942 (see the chart) even before WW2 ended. If you waited until the WW2 ended and invest, you probably will miss out at least 30% gain in this example.