Yesterday, shares of healthcare insurer Aetna (AET) announced strong earnings, but also revealed that two executives left and took a computer that had key information pertaining to their customers with them. The stock dropped 20% in one day, and the company's Chairman John W. Rowe said he would be retiring.

Take a look at the option prices that were exercised by Aetna insiders, then look at the price they sold the stock. This is unbelievable.

Today, the stock is trading around $38.47.

Here's a quote from the movie "Wall Street" where Michael Douglas plays corporate raider Gordon Gecko:

"The most valuable commodity I know of is information."

"I don't throw darts at a board. I bet on sure things. Read Sun-tzu, The Art of War. Every battle is won before it is ever fought."