** Shares of Gratifii Ltd GTI.AX soar as much as 14.3% to
A$0.032, marking their biggest intraday percentage gain since
April 28
** Technology development firm signs a deal with fintech co
Open Sparkz Pty Ltd (Open Sparkz) that would give its clients
access to the payment networks of Visa, Mastercard and Eftpos
** Stock hits its highest since May 12
** More than 4.6 mln shares change hands, vs the 30-day
average volume of 1.1 mln shares
** Stock has fallen 33.3% this year, as of last close
(Reporting by Vasudha Kaukuntla in Bengaluru)
((Vasudha.Kaukuntla@thomsonreuters.com))