Originally Posted by victim
Take-2 needed to announce GTA V when it did so that its shareholders could see exactly why the company was predicting an increase such as this after such a poor year; shareholders of Take-2 may have assumed the company were expecting Borderlands, Bioshock, NBA 2K13 and XCOM to perform to GTA standards. I'm not too read-up on the stock market either but basically you don't get that kind of hike in profits unless you expect something big coming.
Edit: Back-tracked to some old sources and found this.
Take-Two share prices jumped 6% after GTA V's announcement.
That's actually pretty interesting once I started to wrap my head around it. Take-2 is telling their shareholders they will bring in between $1.75 and $1.85 billion in revenue for the fiscal year ending March 31 2013. Maybe they'll get somewhere around $1 billion give or take from the other Take-2 titles combined, but that still leaves a huge amount that needs to be made. Like Lukeyy19 said, it seems GTA V will need to be released well before March 2013 to get revenue like that.