Note: From the Premarket Info archive on May 18th, 2012, the Facebook IPO day.
For a five minute period shortly after the open, FB traded in a 5 cent range, which is incredible considering it had just fallen 4 straight points in the previous 5 minutes. It got stuck in the HFT tractor beam, between 38 and 38.05, as underwriters and HFTs battled it out. Here is a detailed analysis of this battle: