TSX Block List Leaders<SUP>TM</SUP> For March 2007

Here are the TSX Block List Leaders^TM for March 2007. Block trades are large trades with a volume of 10,000 shares or more and a value of $100,000 or more. The TSX Block List Leaders list shows the top ten brokers chosen by their customers to execute these significant block trades on Toronto Stock Exchange. The leaders are measured by volume and value of blocks traded.