S&P, Nasdaq Climb to New Records

U.S. stocks gain for second day after FDA approves Covid-19 vaccine. Rising oil prices propel energy stocks higher. Palo Alto Networks reports better-than-expected revenue growth. Best Buy says sales rose in second quarter. CrowdStrike to be added to Nasdaq 100 Index. J.R. Whalen reports. Learn more about your ad choices. Visit megaphone.fm/adchoices