The numbers for July 26, 2013: Today’s billions

$3.7 billion

The amount of money Mark Zuckerberg made yesterday — in a single day — when Facebook stock went up 30 percent. (Forbes)

$8.2 billion

The amount video game maker Activision (famous for Call of Duty and World of Warcraft) is paying its parent company Vivendi to become wholly independent. (Bloomberg)

$10 billion

The amount of money the government wants SAC Capital to forfeit in what it regards as ill-gotten gains. Catch up on hedge fund SAC Capital’s insider trading charges with our Whiteboard Explainer. (Marketplace Whiteboard)