20% and another 10% today, that's over USD 6 bln... that's one hell of a game! But indeed... it's very popular.
King (Candy Crush) was bought for 6 bln a few months ago....
Probably more Japan Gov easing has it's influence as well...
This is getting nuts... is Pokemon Go really worth USD 20 bln? I guess they can get more earnings from selling merchandise, and possibly a movie... but 20 bln??