Wall Street closing higher, ending erratic week of trading

NEW YORK (AP) — Wall Street is closing higher Friday as the S&P 500 notched its third weekly gain in the last four. The benchmark index’s biggest gains came from cruise operators, airlines, banks and other companies that most need the economy to reopen and strengthen. Investors shook off a wobbly start to the day’s trading thanks to an encouraging report from Gilead Sciences about its investigational treatment of COVID-19. The technology-heavy Nasdaq Composite hit a new all