Update: Just out from Reuters which could be causing the plunge: No Plans for Financial Assistance for Italy From EFSF
The ES just fell off a cliff. For now there is no news: some speculation attributes the move to news that the supercommittee has been a catastrophic failure and no decision will be reached, but we knew that. Another reason is attributed to Fed member Sandra Pianalto stating that Europe is heading for a recession but that is not news either. Most likely just a case of HFT stop as technicals get hit as the EURUSD slides and selling begets selling. Yes, it is a "broken market" for a reason. Watch for the blame HFT crowd to come out in force in a few minutes on the financial comedy basic cable stations.