Mainland Chinese investors are piling into the Hong Kong stock market at record volumes as its tech-heavy Hang Seng Index trades around three-year highs.

Bourse officials have reportedly suggested streamlining the minimum trading unit, or board lot, of each stock. HSBC and Alibaba Group, for example, trade at 400 shares per lot and 100 shares per lot.

HONG KONG] Mainland Chinese investors bought an unprecedented amount of Hong Kong stocks on Monday (Mar 10), continuing to boost their holdings amid a tech-driven rally this year. Read more at The Business Times.

VCG. As of the end of last year, 1,478 Chinese mainland companies were listed on the Hong Kong Stock Exchange (HKEX), making up more than 80 percen