Economy apparently just fell off a cliff at the beginning of September and I think a lot of data confirming that fact is showing up in the market recently.
Markets had apparently discounted a fairly deep recession, but even recently you can hear people talk about the economic trough occuring at the middle of next year (6 months), which now is getting pushed out closer to a year.
Warren Buffet previously projected possible mild 2 year recession with peak unemployment at 7% and worst case scenario of 5 year recession with unemployment peaking at 9% (these comments were made when lots of market talking heads were only talking about 6 months of recession).