** Shares of aged care operator Regis Healthcare REG.AX crashes 26.2% to A$6.8, their lowest since April 30
** Stock on track for worst session ever; top loser on ordinary index .AORD, which is up 0.6%
** Co says Federal Government's 4.7% base price increase for Australian National Aged Care Classification falls short of expectations
** Expects funding increase of only 2.6%, creating funding gap for operations
** Separately, forecasts FY26 underlying EBITDA of A$130 mln - A$135 mln ($85.70 mln - $88.99 mln), up 3%-7% from FY25
** Trading volume spikes to 3.3 mln shares, 3x 30-day average
** YTD, stock up 13% vs AORD's 8.2% gain
($1 = 1.5170 Australian dollars)
(Reporting by Jasmeen Ara Shaikh in Bengaluru)
((JasmeenAraIslam.Shaikh@thomsonreuters.com;))