Actually, this shows how unfamiliar you are with the IPO concept of US corporations. The company's BOD first announces its intention to have an IPO. Then it has to be approved by the shareholders, then the financial handlers (bankers). Then, it's approved or denied by the regulatory committee to ensure rules and regulations are in place. This way one avoids situations like insider trading. If you think, that Facebook suddenly made money with the intention to "fool" all those mechanisms that exist, then please don't ever buy stocks.