FILE PHOTO: The floor of the New York Stock Exchange (NYSE) stands empty as the building prepares to close indefinitely due to the coronavirus disease (COVID-19) outbreak in New York, U.S., March 20, 2020. REUTERS/Lucas Jackson
(Reuters) – U.S. stocks opened higher on Wednesday after Gilead Sciences (GILD.O) gave an encouraging update on a potential COVID-19 treatment, while upbeat earnings reports fro