I'm thinking it's not Monday's big meeting between Russia's Prime Minister Dmitry Medvedev and "Princely"* Zukerberg
The stock closed up 6.59% at $21.66 and is up a couple more cents in early after-hours action.
From Insider Monkey:
Facebook Inc (NASDAQ:FB) – Shares in the largest social networking company are bucking the trend today, trading up 6.7% on the day at $21.68 as of 11:50 a.m. in New York. Trading traffic in weekly options on Facebook Inc (NASDAQ:FB) this morning suggests some traders are positioning for shares in the name to extend gains in the near term. The company yesterday launched a new gift-giving feature that allows users to buy items for friends without exiting the site. Traders anticipating continued gains the share price next week snapped up more than 2,000 calls at the Oct. 05 ’12 $21 strike for an average premium of $0.83 apiece this morning....MORE*That's his mom's nickname for Zuck, awwwwww.