By law, within 48 hours, insiders must report when they buy or sell substantial shares of their own companies.

Even so, they have an unfair advantage over investors not-in-the-know. There might be an expected contract, a product breakthrough, a planned merger, a brewing acquisition.

How valuable is such information? When we detect selected insider buys, screen out weaker stocks, and apply the Zacks Rank, the "unfair advantage" becomes overwhelming.

That's the secret behind our new Zacks Insider Trader, and it's both legal and ethical.?Tests show that, even during a nearly four-year period stained by an historic recession, its strategy would have TRIPLED the performance of?Zacks #1?Strong Buy stocks.

Already a member? Please log in at right. If not, act today.?Extreme demand closed it to new investors, but it's reopened to you?only until tonight, Tuesday, September 6.