S&P places Ackman’s Pershing Square on review as Valeant melts down
March 17, 2016 at 17:26 PM EDT
Standard & Poor’s Ratings Services on Thursday places Pershing Square Holdings Ltd.’s ‘BBB’ rating on a review for a possible downgrade after Bill Ackman’s hedge fund posted sharp losses as Valeant Pharmaceutical International Inc.’s stock continued to tumble.