rising hopes for a COVID-19 vaccine pushed investors to reorder which stocks they see winning and losing.Treasury yields and oil held onto their big gains from a day earlier or added some more amid strengthened confidence in the economy.The S&P 500 dipped 0.1% to 3,545.53, after erasing most of an early loss.
The Dow Jones Industrial Average gained 0.9% to 29,420.92 and the Nasdaq composite dropped 1.4%, to 11,553.86. The week got a strong start after Pfizer announced Monday that a potential COVID-19 vaccine it’s developing with German partner BioNTech may be 90% effective, based on early but incomplete test results.Stocks of smaller U.S.