The Hang Seng Index quarterly review took effect today, with the two new blue-chip additions opening in mixed fashion, according to ETNet.

Huahong Semiconductor (01347) rose 1.9% to HK$111.8, with turnover of about 3.74 million shares worth HK$411 million. Weichai Power (02338) fell 0.4% to HK$32, with turnover of about 9.41 million shares worth HK$302 million.

In the Hang Seng Tech Index, newly added Cambricon Technologies (09903) opened up 3.3% at HK$396.4, while removed constituent Tongcheng Travel (00780) opened down 2.7% at HK$11.7. The Hang Seng Index was last at 25,652, up 2 points or less than 0.1%, with main-board turnover above HK$11.2 billion. The Hang Seng China Enterprises Index was at 8,548, down 6 points or less than 0.1%, while the Hang Seng Tech Index was at 4,558, down 11 points or 0.3%.