Profits at Macau's largest casino operator Sociedade de Jogos de Macau jumped 70 per cent in the first half of the year.

During the six months to June 30, SJM recorded profits of HK$2.67bn ($342m), while its overall revenues for the year to date topped HK$37.8bn.

The company, which now enjoys a 31.1 per cent market share, also reported gaming revenue and EBITDA increases of 41.5 per cent and 56.4 per cent, respectively.

SJM saw the greatest growth in its VIP gaming revenue, which increased 50.5 per cent. But there were also impressive increases in both mass market table gaming (22.7 per cent) and slot machine (37.9 per cent) revenue.

Ambrose So, chief executive officer of SJM, said the substantial improvements in EBITDA and revenue ensures the company continues to lead the market in the Chinese enclave.

"On a quarterly basis, we completed our 10th straight quarter of growth in revenue and adjusted EBITDA and we showed sustained improvement in our operating margin," he said. "We are optimistic about the balance of the year."