US stock market had recovered all losses and then some from the March 2009 low, and is now on the retreat.
A quick look at the chart would indicate there's some support at the current level of around DJIA 12,000.
The next 2 support levels would be DJIA 11,500 and 11,000 respectively.
Support means the bull market isn't over yet.
But then there's the possibility that this is the beginning of a bear market and not just some correction of an ongoing bull market.