Loading...Loading...U.S. stock futures were mixed this morning, with the Nasdaq futures gaining around 0.2% on Tuesday.Shares of NextEra Energy, Inc. NEE fell sharply in today's pre-market trading after the company announced plans to sell equity units.After the market close on Monday, NextEra Energy announced that it intends to sell $2 billion of equity units consisting of a contract to purchase NextEra Energy common stock and a 5% undivided beneficial ownership interest in a NextEra Energy Capital Holdings ...