There are different kinds of investors involved in an IPO process. The investors that have pre-IPO stock and who are looking to sell as quickly as possible, ga

There are different kinds of investors involved in an IPO process. The investors that have pre-IPO stock and who are looking to sell as quickly as possible, gain from IPO pops, so it's in their best interest to maximize short-term profits. That group of investors include a lot of the existing investors, and in almost all cases the founders and C-suite of the company.