Facebook's stock (trading under the symbol FB) closed today's trading day at an all-time low, marking the third straight day that shares dipped in price. The stock closed the day at $20.88, but is up slightly in after-hours trading. Facebook reported its second quarter financial results last week, revealing slowed user growth and a revenue that relies mainly on advertisements on the social network.
Facebook began trading stock back in May, starting at an IPO price of $38. The stock, however, quickly dipped and hasn't seen much growth since.