Keefe Bruyette & Woods Downgrades Nationstar To Underperform By: Benzinga via Benzinga October 06, 2014 at 07:39 AM EDT Analysts at Keefe Bruyette & Woods downgraded Nationstar Mortgage Holdings (NYSE: NSM) from Market Perform to Underperform. The ... Read More >> Related Stocks: Nationstar Mortgage Holdngs I