Speedway Motorsports, LLC is an American company that owns and manages auto racing facilities that host races sanctioned by NASCAR, IndyCar Series, NHRA, World of Outlaws and other racing series. The company was founded by Bruton Smith and has its headquarters at Charlotte Motor Speedway, in Concord, North Carolina, just north of Charlotte. Speedway Motorsports owns nine racing facilities with a combined seating capacity of approximately 885,000. In addition to operating racetracks, Speedway Motorsports owns Performance Racing Network (PRN), U.S. Legend Cars International, and co-owns Motorsports Authentics. After trading for 25 years on the New York Stock Exchange, where it was known as Speedway Motorsports, Inc. (SMI), the company was taken private in September 2019, and today is a wholly owned subsidiary of Sonic Financial Corporation, itself owned by members of Bruton Smith's family. The "SMI" abbreviation is still sometimes used colloquially. History Speedway Motorsports didn't officially incorporate until 1994. Bruton Smith began building SMI in the 1950s when he worked as a race promoter and eventually built Charlotte Motor Speedway in 1959. Smith left the racing business in the early 1960s to pursue other business ventures. He became very successful and by 1975 had owned majority shares in CMS and took over as CEO. A year later he appointed H.A. "Humpy" Wheeler as general manager. Smith began to expand CMS, adding additional grandstands and facilities including condominiums, a first for a sports facility. In 1990, Smith began to acquire additional speedway properties beginning with Atlanta Motor Speedway. As he did with Charlotte, Smith began expanding seating and facilities at Atlanta. In 1992, lights were added to CMS, making it one of the first speedways to offer night racing, and the company developed the Legends car racing circuit, now called U.S. Legend Cars International. Smith incorporated Speedway Motorsports in December 1994, and on February 24, 1995 took the company public by offering shares of stock, debuting at $18 per share. In 1996, SMI began to quickly expand, acquiring two additional facilities; Bristol Motor Speedway and Sonoma Raceway. A year later, the company finished construction of the $250 million, 150,000 seat Texas Motor Speedway. Between 1993 and 1998, SMI had increased its total seating capacity from 176,000 to 551,000. In 1999 SMI outbid rival International Speedway Corporation (ISC) to purchase Las Vegas Motor Speedway. Smith had outbid ISC by $15 million to make a total $215 million purchase. That same year,