Stocks plunged again Monday, bringing the total value of the stock market plunging from its peak last month, as measured by the Dow Jones Industrial Average.

The index finished down 1,175 points, or nearly 5 percent on the day. At one point during the afternoon, it had fallen more than 1,500 points, the biggest one-day drop in history but not the biggest percentage drop. The drop was not large enough to trigger market circuit-breakers.