Richard Richtmyer and Claire Ballentine, Bloomberg News BNN Bloomberg's mid-morning market update: May 19, 2021 VIDEO SIGN OUT U.S. stocks closed mixed and Treasury yields rose as minutes showed Federal Reserve officials were cautiously optimistic about the U.S. recovery at their April meeting, with some signaling theyâd be open âat some pointâ to discussing scaling back the central bankâs massive bond purchases. The S&P 500 fell for a third day, and 10-year Treasury yields jumped to session highs following the release. Energy and raw-material stocks fell the most as commodities prices tumbled amid mounting concern about inflation and potential curbs on monetary stimulus. The Nasdaq 100 notched a small advance, boosted by late-day gains in tech stocks including Facebook Inc. and Alphabet Inc.