The Supreme Court agreed with New Jersey's argument that the federal law infringed upon state sovereignty as laid out in the U.S. The shares in the company, which derives nearly 20 percent of annual revenue from the United States, jumped nearly 11 percent in London trading. subsidiary of British sports betting operator William Hill PLC, which has already been working with state officials in New Jersey on opening an outlet at Monmouth Park racetrack, is one of the companies hoping to capitalize. Caesars Entertainment Corp rose 5.5 percent.
Churchill Downs, which operates the Kentucky Derby, rose 4.9 percent to a record high, while Penn National Gaming climbed 4.7 percent, also to a record. Shares of casino and racing facility operators also rose.
