S&P 500 loses gains after report says Pfizer is contending with vaccine supply chain issues: Dec 4
b'The S&P 500 erased earlier gains and ended Thursday\\u2019s session slightly negative after a report emerged that Pfizer was contending with supply-chain issues that would impact this year\\u2019s deliveries of its COVID-19 vaccine. The Nasdaq, however, managed to eke out a record closing high.\\nLearn more about your ad choices. Visit megaphone.fm/adchoices'