** BYD Electronic International 0285.HK slides 9.6% to HK$42.45, lowest since February 3
** Stock on course for fifth consecutive session of decline; eyes biggest intraday pct drop since February 28
** Chinese high-tech products maker's 2024 profit attributable climbs 5.6% y/y, rev jumps 36.4% y/y
** Citi ("buy") says firm's Q4 FY24/H2 FY24 net profit missed analysts' estimate on soft margin
** BYD top pct loser on Hang Seng Index .HSI and Hang Seng Tech Index .HSTECH, which are down 1.5% each
** YTD, stock gains 1.7%
($1 = 7.2629 Chinese yuan renminbi)
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))