TMX Group Inc. reported slightly improved second-quarter profits and revenue as a greater number of new companies listed on Canada’s largest stock exchange.

Thomas Kloet, chief executive of the stock exchange operator, told analysts in a conference call yesterday that the main exchange logged 45 new issuers during the second quarter, of which 28 were initial public offerings. “On a year-to-date basis there were 94 new listings on TSX, which outpaced the same period in 2009 by more than 150 per cent,” he said.

TSX Venture Exchange posted 43 new issuers in the quarter, bringing its tally to 81 new issuers for the year, he added.

TMX Group’s net income in the second quarter was $47.6 million, or 64 cents per common share — up two per cent from a year before.

Revenue increased by three per cent to $142.7 million.

In recent years, the exchange has competed against new entrants in the market, including the Alpha trading system for large-volume issues, the Canadian National Stock Exchange and alternative trading systems.

Alpha Group was launched by investors that include the brokerage arms of Canada’s six biggest banks, and it has led a highly competitive march by charging lower trading fees.

The TMX Group responded by slashing its securities trading fees earlier this year for both its main exchange and the Venture Exchange, and unleashed an incentive program for companies with high volume trades.

Kloet said in the second quarter there was a surge of activity in derivatives trading at the Montreal Exchange, where volumes increased by 32 per cent over last year.