BEIJING -- China's futures market continued to expand in April, with its net profits and operating revenue posting double-digit growth, industry data showed.

Net profits of the country's 149 futures companies totaled 974 million yuan (about $152 million) in April, climbing 28.69 percent year on year, according to the China Futures Association.

The operating revenue of these companies rose 27.38 percent in April from a year earlier to 3.52 billion yuan, the association said.

The futures trading turnover in April amounted to 48.03 trillion yuan, surging 62.62 percent year on year, while the futures trading volume stood at 624 million lots, representing an increase of 18.79 percent.

In the first four months, China's futures companies raked in a total of 3.14 billion yuan in net profits, soaring 81.86 percent year on year.