Even though it was bad news, but what I have been saying a few times before, most of joe six packs are out of the market, no more weak hands. Hedge funds stopped the outflows.
Take a look at the macd on any chart, Dow, S&p, or any stocks you follow, for the most part, even if it was going lower, the bears were not out in full force, and macd was reversing up.
You cant look at prices only, have to look at other factors as well.
Great book to read on this, is "Trading for a Living" by Dr. Alexander Elder