** Shares of HUB24 HUB.AX up 12.1% at A$73.1

** Stock rises as much as 13.5% earlier in the day, hitting its highest level since Dec. 10 and posting its biggest intraday pct gain since October 2022

** Investment platform provider posts record quarterly platform net inflows of A$5.5 bln ($3.45 bln) for Q2

** Total funds under administration A$120.9 bln as at Dec. 31, up 33% from a year earlier

** Stock has risen more than 5% this year, including day's move

($1 = 1.5931 Australian dollars)

(Reporting by John Biju in Bengaluru)

((John.Biju@thomsonreuters.com;))