The Dow Jones Industrial Average on the New York Stock Exchange reached a peak of 381.241 points in September 1929. After the panic started in 1929 the market would hit a low of 41.22 points in July 1933.

The Great Market Crash of 1929 - 1933 affected everyone, even those who had not bought stocks. A very good example of what people did is that they ran to their banks to get their savings, fearing the banks would run out of money.

By July 8, 1933, the Dow was down to 41.22. That was a 90 percent loss from its record-high close of 381.2 on September 3, 1929. It was the worst bear market in terms of percentage loss in modern U.S. history. Nevertheless the largest one-day percentage gain also occurred at this time. In March 1933, the Dow rose 15.34 percent, a gain of 8.26 points, to close at 62.10. This was a positive sign!

More Info: www.investopedia.com