** Hong Kong shares of Standard Chartered 2888.HK climb 1.7% to HK$113, their highest since July 2015, and on course for the fifth consecutive session of gain
** Stock on track for the biggest one-day pct rise since February 12
** Standard Chartered STAN.L announces a new $1.5 bln share buyback after reporting its annual profit rose 18%
** The Hang Seng Finance Index .HSNF rises 1.4%, Hang Seng Index .HSI jumps 3.7%
** Hong Kong-listed stock up 16.3% YTD
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))