Why Twitter Inc (TWTR), Itau Unibanco Holding SA (ITUB) and Royal Caribbean Cruises Ltd (RCL) Are 3 of Today’s Worst Stocks By: InvestorPlace February 02, 2016 at 11:26 AM EST Read More >> Related Stocks: Itau Unibanco Banco Holding S.A. ADR Royal Caribbean Cruises Ltd Twitter, Inc.