** Austco Healthcare AHC.AX rises as much as 7.3% to A$0.44, highest since October 16
** Stock marks biggest intraday pct rise since October 20
** Healthcare communication firm's Q1 revenue jumps 51% vs pcp; EBITDA rises 16% at end of FY25
** About 456,000 shares change hands, 2x the 30-day avg
** AHC last up 4.9%, taking YTD gains to 56.4%
($1 = A$1.5389)
(Reporting by Anjali Singh in Bengaluru)
((anjali.singh2@thomsonreuters.com;))