There is no good news in economies, any economies. Why stocks have remained where they are is likely a belief in additional liquidity to drive them. With the current economic situation and collapsing finances around the world, stocks may adjust rapidly downward.
The Fed has only one bullet left and it is not a silver one. I suspect they know this bullet — more monetary easing — will be held to juice markets when needed.
My two cents, but that is about all I would invest in this stock market.