Hong Kong shares ended a choppy Friday session moderately higher, but strength in defensives and the lowest turnover in six sessions pointed to caution after a month-to-date rally lifted the Hang Seng Index more than 10 percent, Reuters reported. The Hang Seng Index closed up 0.31 percent at 20,501.67. The China Enterprises Index of top mainland listings in Hong Kong finished up 0.26 percent at 11,446.52. Financial markets in mainland China were closed on Friday and will resume trading on Monday after a week-long Lunar New Year holiday.