General Growth's stock surged big time today at one point hitting $1.36 per share--the first time its stock has traded north of a $1.00 per share since late January. There has also been tremendous volume today on the stock.
The stock fell a bit after that statement came out. It closed at $0.97 per share (and is up slightly in after hours trading). That still represents a 36 percent one day jump in the stock.