Investors have become used to seeing bonds trade at negative yields but last week YieldReport saw something that had long-time market watchers scratching their heads. Two European companies, French pharmaceutical company Sanofi and German consumer goods company Henkel, issued corporate bonds at negative yields. It is believed to be the first time that non-bank corporates have issued negative yielding bonds. Sanofi sold €1 billion of 3 ½ year bonds with...