DraftKings sits at the centre of a U.S. digital gaming duopoly that — alongside FanDuel — now controls 75-80% of the country's sports betting market. The company's competitive identity is built on a five-year migration away from outsourced technology toward a vertically integrated proprietary stack covering pricing, trading, account management and, most recently, prediction-market exchange infrastructure. For Bally's, Boyd, Caesars, Penn Entertainment, BetMGM and the rest of