While that tweet may be market manipulation, it's worth noting that Tweets about Anne Hathaway have been shown to move Berkshire Hathaway stock. [1] This is in

While that tweet may be market manipulation, it's worth noting that Tweets about Anne Hathaway have been shown to move Berkshire Hathaway stock. [1] This is in part due to Berkshire's relative illiquidity. [1] http://www.theatlantic.com/technology/archive/2011/03/does-anne-hathaway-news-drive-berkshire-hathaways-stock/72661/ http://www.theatlantic.com/technology/archive/2011/03/does-a...