Initial Public Offering (IPO), also referred to simply as a "public offering," is when a company issues common stock to the public for the first time. They are often issued by smaller, younger companies seeking capital to expand, but can also be done by large privately-owned companies looking to become publicly traded. In an IPO, the issuer may obtain the assistance of an underwriting firm, which helps it determine what type of security to issue (common or preferred), best offering price and ti… (More on Ipo)