Economist Stephen J. Guilfoyle of Sarge986.com weighs in on the highly-anticipated Twitter IPO that is expected to price after the closing bell on Wednesday and begin trading on the New York Stock Exchange on Thursday under the ticker symbol "TWTR." The estimated offering price range was originally $23-$25 per share, up from a previous $17-$20 per share range; however, sources told CNBC on Wednesday that Twitter's underwriters plan to price its stock above estimates at $27 per share as long as the market momentum continues.