If you don't know whats going on with the SEC and the allegations of Mark Cuban with mamma.com check it out here:
This is what I think about it though:
This is the most erroneous thing I have ever heard of. Why would a
billionaire engage in this kind of activity? Short answer, he wouldn’t.
Mark Cuban may be called a lot of things by people who don’t understand
him, but truth be told he is a genius and a self made man. He is not
only a successful entrepreneur, he also turned the mavericks around.
I admire this man for what he has accomplished. Insider trading is
flawed from the core anyway. I mean in some regards it makes sense, but
if one really thinks about it the only thing people who violate “insider
trading” are guilty of is having friends in the right places. I mean, if
I had stock in an airline and saw on the news that one of their planes
crashed and I sold the stock I would in essence be doing the same thing
that Mark Cuban allegedly did. Additionally, making guinea pigs out of
people like Martha Stewart or Mark Cuban accomplishes nothing. The
people who have the connections to conduct insider trading is not the
same audience the SEC is trying to scare. They are trying to scare the
average investor who has someone else handling their finances. I think
that these allegations are ridiculous and I hope that they are dropped.