I remember a thread on this a few months back, and the problem is that most of these trades happen at the small windows in time where members of congress have i

I remember a thread on this a few months back, and the problem is that most of these trades happen at the small windows in time where members of congress have information the public doesn't. While trades by members of congress have to be made public, there is a delay. If you buy/sell after the delay (up to 45 days), the performance isn't really going to correlate with what they're getting.