SEMK HOLDINGS (02250.HK) closed at HK$2.39 on its debut day, up HK34 cents or 16.6% against its listing price of HK$2.05, on a volume of 98.21 million shares, involving HK$247 million.

Excluding the handling fees, a book gain of HK$340 was reported per board lot of 1,000 shares.