Macao casino operator MGM China Holdings Ltd posted a 380 percent gain in net profit for the first six months of this year, bolstered by surging revenue in the world's largest gaming destination.

MGM Resorts International, which owns a majority stake in the $7 billion company, posted its results on Aug 9 including MGM China's unaudited figures.

Net profit for the first half was HK$1.9 billion ($244 million), compared with HK$397.3 million the previous year, MGM China said on Friday, in its first half-year statement since listing on the Hong Kong stock exchange on June 3.

Shares in MGM China, one of six licensed casino operators in Macao, have slipped about 10 percent since listing amid global market volatility.