Insider trading has been a target of both the Bush and Obama administrations. The case against Rajat Gupta, a former director of both Goldman Sachs and Procter & Gamble, is part of a major crackdown on insider trading.
It's been a bear year for business. But this year's scariest Halloween costumes from the business world include a moose. And a vampire squid.
Investors have redeemed $1.3 billion from troubled hedge firm Galleon.
Raj Rajaratnam, who was arrested Friday for insider trading in the US, is also linked to a money-transfer case in Sri Lanka.
Billionaire Raj Rajaratnam, a partner at hedge fund Galleon Group, is among six nabbed in latest Wall Street scandal.