** Shares of Etherstack ESK.AX rise as much as 7.7% to A$0.63, their highest level since April 20
** Stock set to log its steepest intraday pct rise since April 2
** The tech company revises its full-year revenue outlook to $17.2 million-$18.9 million, up from previous forecast of $16.2 million - $17.5 million, based on contracted projects
** Company expects half-year revenue between $7.6 million and $8.5 million
** Stock up 13.6% YTD, including the session's moves
(Reporting by Anjali Singh in Bengaluru)
((anjali.singh2@thomsonreuters.com;))