Card-reading contact lenses, X-ray poker tables, trays of poker chips that read cards, hacked shuffling machines that predict hands. The technology alleged to have been used to execute a multistate, rigged poker operation sounds like it’s straight out…

A group that includes activist investor Jana Partners and NFL player Travis Kelce says it has accumulated one of the largest ownership stakes in Six Flags Entertainment and intends to press the company’s leadership on ways to improve…