TORONTO — Some of the most active companies traded Tuesday on the Toronto Stock Exchange: Toronto Stock Exchange (20,244.29, up 89.75 points.) Canadian Natural Resources (TSX:CNQ). Energy. Up 42 cents, or 1.02 per cent, to $41.64 on 16.5 million shares. Cenovus Energy Inc. (TSX:CVE). Energy. Up four cents, or 0.37 per cent, to $10.82 on […]