** Shares of Hong Kong Exchanges and Clearing 0388.HK climb 3.3% to HK$421.2, their highest level since February 27
** Stock set for the biggest one-day pct rise since April 8
** Hong Kong stock exchange operator said its Q1 net profit attributable jumped 27% y/y and core business revenue up 22% y/y
** "Looking ahead, we will continue to deepen regional connectivity, broaden participation, and invest in building a resilient, innovative multi-asset ecosystem" - Bonnie Chan, CEO
** YTD, stock up 3%, benchmark Hang Seng Index .HSI up 1.5%
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))