Worst June Since Depression for the Dow Jones

The Dow has slumped 9.4 percent this month, its worst June since an 18 percent tumble in 1930 during the Great Depression. All 30 companies have posted losses in the month as oil surged, the unemployment rate jumped to the highest since 2004 and concern grew that global financial firms will add to $400 billion of subprime-related writedowns.

All 10 industry groups in the S&P 500 retreated at least 1 percent