Yesterday, November 7th, Twitter decided to go public in the stock market. Their initial public offering (IPO) for a share of the company was $26, but at the end of the day, they closed at $44.94, nearly doubling their IPO. Twitter is now worth about $25 Billion. At 73%, Twitter had the 14th biggest IPO percentage jump this year, as well as the 7th largest global IPO if the year.
Twitter going public was such a big deal that it actually caused the stocks of other social networks to fall. Yelp, who had the biggest drop, dropped 7%, while LinkedIn, Groupon, and even Facebook have experienced some loss.
http://www.usatoday.com/story/tech/2013/11/07/tech-stocks-twitter/3463963/
http://www.cbsnews.com/8301-505124_162-57611205/twitter-goes-public-now-for-the-hard-part/