*New* Why You Should Care About Lockup Periods

Editor's Note: With this column, we introduce a new feature by Ben Holmes, author of the popular This Week in IPOs column on TSC. Ben has mined his database to present a table of the issues whose shares are subject to the expiration of the insiders' lockup. Whether you're using this information to plan a trading strategy, or just as a heads-up for upcoming volatility, we hope it's useful. As always, let us know what you think.

I know a lot of people who are involved in trading IPOs. Many of them are professional traders; quite a few are individuals who participate at a pretty serious level. Collectively, they are a terrific source of market insight for me and my research staff, which is why I spend a huge part of my day fielding email and phone calls from these folks.

IPOs: Join the discussion on TSC message boards.

Having a network like this is great: It keeps me close to what's actually happening out there in the jungles and gives me a clear, real-time picture of how IPO investors are playing the game. One trading theme I'm hearing a lot about lately is expiring lockup periods. ...