It's been parabolic for 2 years and broke all major support earlier today. Still heavy sell orders need to get filled, since the news was spilled towards end of day. The issue is, when you have a stock that is solely tied to one event and doesnt have the foundational support and earnings and revenue growth, this is the fundamental risk. Even after a 7% sell off, the stock is sell valued at a whopping $39 BILLION!. THINK, is YAHOO really worth $39 BILLION? It needs to correct back to a $30 BIllion market cap, more in line and you're looking at a run back down to $30.