There is also speculation that online betting duties, at 15%, could rise if the Department of Culture Media & Sport follows through with its plans to cut maximum stakes on controversial crack-cocaine betting machines to £2, as the Treasury looks to recoup lost revenue.
As a major online player, that could hurt Paddy Power Betfair disproportionately.
Paddy Power Betfair’s shares are down 16% this year and 30% since their peak above £105 in February last year as some analysts also stressed its vulnerability to regulatory changes and improved competition, while leaning on slower growth markets.