** Shares of Viva Leisure VVA.AX rise as much as 4.5% to A$1.390, their biggest intraday pct gain since Nov. 26
** Health club operator acquires 25% equity stake in World Gym Australia and 100% stake in three of its locations in Queensland for a total of A$16.7 million ($10.7 million)
** Says it expects FY24 actual revenue of A$163.6 mln after completion of acquisition; it previously forecast FY24 revenue of A$162 mln to A$164 mln
** Including session's gains, VVA down 10.2% YTD as of 1225 GMT
($1 = 1.5547 Australian dollars)
(Reporting by Adwitiya Srivastava in Bengaluru)
((Adwitiya.Srivastava@thomsonreuters.com;))