Ackman vs. Loeb vs. Soros vs. Icahn

It seems like the financial news consists largely of news items on what these four managers are up to. Who is buying Herbalife, what are they doing with Apple, what are they talking about on Twitter.

However, I have yet to hear, EVER, either of the following questions which underly the entire point of talking about them.

1.  Does it make sense to follow what these guys are doing, ie is it helpful, or are you wasting your time?  Can you actually use this information in any way?

2.  How has following these guys done historically?  Have they beat the market, and if so, who is the best?

I know the answer to these two questions.  Do you?  

It may surprise you.