In the final hour, this market went from a bear to an angry bear.
The Dow lost nearly 679 points, or 7.3 percent. The Nasdaq lost another 5.5 percent, and the S&P dropped 7.6 percent.
Here's what happened:
If it wasn't clear before, this market is showing no sign of a bottom (though it has to be said, all day, a lot of players said they were considering dipping a toe back in). Bear markets have seen shares fall more than 50 percent just twice during the postwar period. We're edging toward 40 percent now.