The decrease in net income was due to $54.4m (pre-tax) of costs related to the Maple Group’s proposed acquisition of TMX and the proposed merger with London Stock Exchange (LSE) including a C$29m break fee due to the LSE and C$23.4m in legal, advisory and other costs.

Revenue decreased 1% to C$167.5m for the second quarter of 2012, compared to C$169.3m for the same period a year ago.

Cash markets revenue decreased 16% to C$20.9m for the quarter, compared to C$25m for the same period prior year.

Derivatives markets revenue declined 22% to C$32.6m for the quarter, compared to C$26.8m for the same period last year.

TMX CEO Tom Kloet said, "In the derivatives segment, volumes on Montreal Exchange and Boston Options Exchange are ahead of the same period last year, somewhat offsetting revenue declines in our cash markets business."