For the curious, rankings of publicly traded companies who make games in terms of market cap:
*Microsoft ($800.1 billion, all time high)
*Sony ($66.2 billion)
Activision Blizzard: $61.8 billion (all time high this year)
Electronic Arts: $45.5 billion (all time high)
Nintendo: $38.5 billion
Take-Two: $14.5 billion(all time high this year)
Ubisoft: $13 billion(all time high this year)
Bandai Namco: $8.8 billion(all time high this year)
Konami: $6.5 billion
Square Enix: $5.5 billion
CD Project Red: $4.75 billion (all time high)
Sega Sammy: $3.8 billion
Capcom: $2.5 billion(all time high this year)
Koei Tecmo: $1.95 billion
MS and Sony get * since a very large portions of their income comes from non-gaming.
Lots of gaming companies reaching their all-time highs lately, great for gaming!
EDIT: Added CD Project Red