** Hong Kong-listed shares of BYD Co 1211.HK fall 4.2% to HK$111.3, their lowest since April 9
** Stock top pct loser on Hang Seng Tech Index .HSTECH, Hang Seng Automobile Index .HSAMI and Hang Seng Commerce & Industry Index .HSNC
** Shenzhen-listed stock 002594.SZ fall 3.1% to 102.57 yuan, lowest since February 6
** BYD's 002594.SZ vehicle production fell 0.9% in July from a year earlier, ending a 16-month growth streak that has catapulted the Chinese automaker into the world's largest electric vehicle maker
** Hang Seng Index .HSI climbs 0.3%
** YTD, Hong Kong stock up 26.9%, Shenzhen-listed stock up 10.6%
(Reporting by Donny Kwok)
((donny.kwok@thomsonreuters.com))