Cantor Fitzgerald analyst Youssef Squali believes a potential increase in the capital gains tax on Jan. 1, when Bush-era tax cuts would expire unless Congress acts, could pressure Facebook's stock. That said, he called the Menlo Park, Calif.-based social media company a "long-term winner."
Facebook's stock saw its biggest one-day gain on Oct. 24, the day after the company reported stronger-than-expected third-quarter results and detailed for the first time how much money it made from mobile ads. The stock, which added 19 percent that day, closed at $23.23. Even with Wednesday's gain, it is still 8 percent below that price.