Hi Everyone, I am a newbie to US stock markets. Following are some questions I am concerned with: 1. What does it mean by "Post-Offering Amount" and "Offering Amount" 2. Typically, how soon a stock would start to trade after filing with SEC and how should I do to avoid missing the first trading day of that company. 3. What are the major difference between IPO in NASDAQ and New York Stock Exchange, I mean, in terms of volitility, opening premium and etc.? 4. Would an IPO with 250 million be considered as big, small or typical IPO? Thank you in advance. Any comments are appreciated.