One risk to the market maker would be insider trading.

Second, the market would have been monitored for evidence of insider trading.

It works something like insider trading on the stock exchange.

"In the investment business, we unfortunately always seem to face the problem of insider trading."

American officials are investigating whether there was any insider trading.

In addition, such practice carries with it serious potential for insider trading.

No one has been sent to jail for insider trading in Japan.

Also I wouldn't mind reading in the paper that he had been indicted for insider trading.

Insider trading appears to be a growing problem for regulators.

But more recently, he was the subject of a Dutch investigation into possible insider trading.