Social media has grown up. News that breaks on Twitter is now news that moves the markets, sometimes even when it's not news.
Earlier this week, the AP's Twitter account was hacked and a fake tweet was posted about President Obama being injured in an explosion. The Dow dropped 143 points and $136.5 billion in value was shaved off the S&P for a brief period. While the market quickly rebounded, it was a wake up call for investors.
Here's a look at some tweets that affected trading.
By Cadie Thompson
Updated 25 April 2013