Insider Trading Loss

More on Raj Rajaratnam's alleged insider trading scheme: the alleged scheme produced a net loss for defendants (from NYT):

Raj Rajaratnam, the authorities say, masterminded one of the biggest insider-trading schemes in a generation.

But if Mr. Rajaratnam was trading on insider information, apparently he was not very good at it.

A close examination of the trades that led to his arrest last week reveals a startling fact: In all, Mr. Rajaratnam lost millions from what prosecutors characterize as illegal trading.