Howie Long-Short : The International Speedway Corporation ( ISCA ) owns and operates the Daytona International Speedway and a dozen other race tracks; including the Talladega Superspeedway and the Martinsville Speedway. In late January, the company noted that full-year 2017 revenue ($671.4 million) grew to levels it hadn't seen since '10, sending share prices up 10.6% (to $45.30). Shares hit a high of $47.15 on February 1st, before settling back down to $45.05 at Thursday's close.