"I learned an experience at Lehman Brothers that I will never forget. Since I'm in charge of logging accounts, I have a fairly good idea of how much money they're making. One day, when I was logging into my accounts, I discovered that Lehman Brothers was constantly buying shares in Super Electronics for its trust. I was ignorant of investing at the time, and I figured that the big investment firm should know what it was doing, so I called Harry Lowrion and told him about it. Harry took my word for it, and he bought a lot of shares at $44 a share. In the months that followed, I watched helplessly as the stock price plummeted all the way to $30. Harry ended up selling his shares, losing a total of $40,000. I felt more than any personal loss. This was the last time I suggested that a friend buy a stock, but unfortunately it wasn't the last time I opened a position by mistakenly believing that someone else "should know what they're doing". However, I did learn a lesson: don't give any advice about the market for free based on the position of helping a friend. ” Excerpt from: Principles of Professional Speculation (Collector's Edition) (Huazhang Classics Financial Investment Series) That's the price of inside information.