Activision Blizzard Inc. (NASDAQ: ATVID) reported preliminary Q1 earnings earlier in the week, and from a shareholder's perspective, they were great. These results are for Activision itself, and do not take into account the effect of the merger with Vivendi Games.

OK, consider the following. Management had previously thought that Q1 would see revenues of about $500 million. The game publisher should actually deliver around $650 million on the top line. And in terms of earnings per diluted share, Activision should do at least $0.16. Previously, the call was for $0.04 per diluted share. Activision obliterated its own projections, and one has to wonder when the momentum is going to stop.

I hope it never does, of course, since I own shares of the company. Competitors such as Electronic Arts (NASDAQ: ERTS) and THQ (NASDAQ: THQI) are doing everything they can to keep up. Their stocks certainly aren't near 52-week highs, and in the case of EA, a takeover of Take-Two Interactive (NASDAQ: TTWO) seems to be the biggest priority in terms of counteracting the Activision Blizzard juggernaut. Now, in terms of drivers for the quarter, Activision benefited from Guitar Hero and, believe it or not, a game based on DreamWorks Animation's (NYSE: DWA) Kung Fu Panda. In fact, the Panda title was mentioned first in terms of drivers. This shows that, even though Activision has some awesome intellectual properties of its own, it still knows how to derive value from investments in licensed properties.

The stock closed up over 7% on Tuesday. I know there are a lot of you out there waiting to get in on this stock, but if I were buying, I'd wait for a pullback. I'm sure one will happen after the excitement over the preliminary results fades. Activision has been one of my favorite stocks, and I think it will perform well over the next six months.

Disclosure: I own Activision Blizzard; positions can change at any time.