Hong Kong stocks edged higher on Wednesday, led by Macao casino operators, as a bull-market rally showed signs of exhaustion.

The Hang Seng Index rose 0.1 percent at the close, paring an advance of 0.7 percent. Sands China Ltd and Galaxy Entertainment Group Ltd gained the most in two weeks.

Wharf Holdings Ltd, Hong Kong's biggest mall operator, dropped 1.9 percent after posting a decline in net income. MTR Corp capped its biggest loss in almost three months after reporting lower underlying profit.