** Shares of Aristocrat Leisure ALL.AX rise as much as 5.6% to A$48.410, hitting their highest level since May 4
** Gaming content creation firm logs 8.4% rise in half-year net profit to A$794 million ($574.54 million)
** Co also increases its buy-back by A$1 billion, to A$2.5 billion in total
** Also announces interim dividend of 50 AU cents per share
** Stock down 17% this year, including the day's move
($1 = 1.3820 Australian dollars)
(Reporting by Rajasik Mukherjee in Bengaluru)
((Rajasik.Mukherjee@thomsonreuters.com))