** Shares of Australia's Viva Leisure VVA.AX rise as much as 4.5% to A$1.400
** Stock at its highest level since February 20
** VVA posts its biggest intraday pct gain since April 14
** Health club operator acquires 33% stake in Australian sports nutrition company Gorilla X Labs, without disclosing a value
** Stock has fallen 7.6% YTD
(Reporting by Roshan Thomas in Bengaluru)
((Roshan.Thomas@thomsonreuters.com))