In an effort to improve the IPO process and attract more filings, the SEC has recently announced that it will extend a benefit (previously only enjoyed by emerging growth companies) to all new IPO seeking companies. Effective July 10, 2017, such companies will be able to file registration statements for "non-public" review. This also extends for a limited time after the IPO. According to the SEC, "The non-public review process after the IPO reduces the potential for lengthy exposure to market fluctuations that can adversely affect the offering process and harm existing public shareholders. By requiring a public filing period prior to the launch of marketing, the process incorporates a feature of the EGC review process that provides an opportunity for the public to evaluate those offerings." 

Press Release Available Here