I admit it: I am something of a geek.

I spend a lot of time sitting around reading articles, crunching numbers, and engaging in other research-focused activities.

One of my favorite ways to spend an afternoon is with a game in the background (preferably baseball, but there has to be an offseason), reading the latest academic studies and insights.

Recently, I spent some time with a study on insider buying titled "Are CFOs' Trades More Informative Than CEOs' Trades?"

As it turns out, they are.

Everyone focuses on the CEO. After all, he is the top executive who sees...