Paddy Power and Betfair owner Flutter has said it is considering fully delisting from the London stock market in a blow to the City after shifting its focus to the US. The sports betting and gambling company said it was reviewing its shares on the London Stock Exchange and this may result in a decision to cancel the listing. Flutter switched its primary stock market listing from London to New York in 2024 although kept a secondary listing on the LSE. This followed rapid expansion in the US through its FunDuel sportsbook business and as a raft of states loosened their gambling restrictions. The company expects to update shareholders on the outcome of the review by the end of June. It could mark the next exit for the LSE after building materials group CRH said it March it was planning to delist entirely after similarly switching its main listing to New York.…