United Challenges Delta As Airline Industry Leader While American Trails

American and United aircraft meet at Miami International Airport in May. (Photo by Jakub Porzycki) NurPhoto via Getty Images Even before Monday's stock market rout, airline shares were having a bad year. Among major carriers, American was having the worst year of all, while United was gaining support from a leading market strategist who now views the Chicago-based carrier as the industry leader. "Surprisingly, American has led on the downside," Stephanie Link, chief investment strategist and portfolio manag ...