 Shares of Twitter Inc NYSE:TWTR gapped down before the market opened on Friday after Susquehanna Bancshares lowered their price target on the stock from 47.00 to 35.00. The stock had previously closed at 28.57, but opened at 28.68. Twitter shares last traded at 27.27, with a volume of 1,225,664 shares. A number of other brokerages ... 