Longer time frame and better perspective is necessary. You're making it seem like those dips for non-Blizzard companies are the same in size.
The Sony dip that looks like they're hitting ROCK BOTTOM END OF THE COMPANY is a fucking $5-6 drop out of their $60 stock which has already recovered by half.
The Nintendo drop is an $8 drop from their usual $40 value and has stabilized and even poked its head up a little bit, but may drop again.
Apple's drop is a ripple in a fucking pond. It's the lull between phone generations and their "omg endtimes drop" is about $8 out of their usual $165 stock.
Not sure why you posted a picture of Microsoft and such a small timeline, even though they're one of the largest companies increasing the most in the shortest time, so I'll ignore that one.
Let's just put Tencent in a better perspective:
Now, let's finally move to Blizzard. They're bordering the line between being closer to their top stock value and $0 stock value, sometimes closer to $0. They haven't recovered, they still keep falling, and nothing is releasing any time soon to try to plug the holes in their sinking ship. Who knows how many years of revenue they've lost in the last quarter.
Before you think of yourself as the fuckin wolf of Wall Street, maybe you need to bring a little more inspection to what's going on, what it means, how you're going to say it, and if you want to open your mouth at all.