** J.P.Morgan says HCA HCA.N, Tenet THC.N, Ardent Health ARDT.N and UHS UHS.N to beat Q2 expectations despite likely policy changes
** JPM expects favorable volume trends due to higher utilization in Affordable Care Act exchanges and Medicaid on better reimbursement rates, stable supply and labor costs
** Says Medicaid program funding pressure post-One Big Beautiful Bill Act to dent earnings but size, timing uncertain
** Expects Medicaid enrollment to drop by ~5.9 mln by 2034 in 26 states where the companies operate
** This year through last close, ARDT down ~15%; but HCA has gained ~27%, THC 41%, while UHS is up 2.3%
(Reporting by Siddhi Mahatole)
((siddhi.mahatole@thomsonreuters.com))