** Shares of Waypoint REIT WPR.AX rise as much as 2.9% to A$2.460, their highest level since March 4
** Stock posts its biggest intraday percentage gain since March 21
** Retail real estate investment trust announces plans to buy back up to A$50 million ($30.06 million) worth of shares
** Stock last up 2.1%, bringing YTD gains to 4.3%
($1 = 1.6633 Australian dollars)
(Reporting by Aaditya Govind Rao in Bengaluru)
((Aaditya.govindrao@thomsonreuters.com;))