Definitions for "quiet period"
Keywords:  ipo, sec, hype, prospectus, issuer
The period starting when an issuer hires an underwriter and ending 25 days after...
Immediately following an IPO, the underwriters are restricted from issuing research reports for up to 25 days. After the end of the quiet period, there may be an increase in trading on the stock if the research reports contain new information that is important to investors.
Time period an issuer is "in registration" with the SEC and may not promote its forthcoming issue.