Home Business S&P Global places Boeing's rating on credit watch negative Business S&P Global places Boeing's rating on credit watch negative By Genpie - January 23, 2020 136 0 Facebook Twitter Google+ Pinterest WhatsApp S&P Global Ratings on Thursday placed Boeing Co’s ‘A-‘ credit rating on ‘credit watch’ with negative implications, citing a rise in costs and cash outflows at the U.S. planemaker due to a further delay in the grounded 737 MAX’s recertification.