Yesterday, an extended IPO share lock-up expired, leading some early investors to sell shares into the open market.

FORBES: Stocks Shoot Higher As Data Reinforce Recovery Strength

With the biggest share lock-up expiration out of the way, it seemed like believers in the Facebook story found it safer to buy into the stock.

FORBES: What A Week For Facebook: The Stock Rises Another 6% On Friday

Facebook (NASDAQ:FB) has been one of the strongest stocks in the market over the past three weeks following the expiration of an 800 million share IPO lock-up period.

FORBES: New Life For Apple, Facebook, Google As Walking Dead Start Running Again