There are only two possible way you KNOW they ARE dumping . 1. You are a insider , you know you ARE dumping . 2. You are in a insider's house watch him , eh , dumping . But , FAST ? How do you measure that ? Mph ?
No one is dumping at this point. A few folks who need cash to pay off taxes or houses are selling, and taking profits.
Most of the lock up shares now belong to people who are in FB for the long haul. they have no intention of selling at $15, $20, $25 or $30. Wake up everyone.
Obviously secondary markets overbought and insiders cashed out already who didn't believe in FB. After December's lock out, there is no where for the stock to go but up. Why people are so angry about FB possibly making money is very odd.
No one begrudges GOOG, AAPL, LNKD or AMZN any of their riches. What is the big deal about FB actually making its shareholders some money?
Time to buy buy buy. No one is selling out now unless they have to. There is too much upside and the float obviously is in the hands of longs now.