Noble Group shares fall after S&P rating downgrade

Noble Group shares fell more than 2 percent on Thursday after Standard & Poor's cut the Singapore-based commodity trader's credit rating deeper into junk territory, to B+ from BB-, and assigned a negative outlook. Noble's bonds due 2020 were down an eighth of a point at 80.88/81.75 cents on the dollar. Rating downgrades forced Noble to sell some of its key assets to allay financing worries and weather the commodities downturn.