TSX Block List Leaders<sup>TM</sup> For April 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 display 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.

For a full list of block trades for all brokers, get the TSX Broker Block Summary

TSX Block List Leaders by Volume - April 2007
Broker Name	Total Volume	% Volume

GMP SECURITIES LIMITED	781,869,600	14.46
BMO NESBITT BURNS INC.	564,081,255	10.43
RBC CAPITAL MARKETS	479,282,882	8.86
TD SECURITIES INC.	473,632,540	8.76
NATIONAL BANK FINANCIAL INC.	380,067,499	7.03
CIBC WORLD MARKETS INC.	376,810,800	6.97
SCOTIA CAPITAL INC.	276,214,634	5.11
UBS SECURITIES CANADA INC.	214,421,700	3.97
CORMARK SECURITIES INC.	210,589,700	3.89
CANACCORD CAPITAL CORP.	206,354,100	3.82

TSX Block List Leaders by Value - April 2007
Broker Name	Total Value	% Value
TD SECURITIES INC.	$10,456,161,573	13.60
BMO NESBITT BURNS INC.	$9,999,963,618	13.01
RBC CAPITAL MARKETS	$8,382,328,617	10.91
SCOTIA CAPITAL INC.	$7,156,343,814	9.31
CIBC WORLD MARKETS INC.	$6,538,912,897	8.51
GMP SECURITIES LIMITED	$6,182,178,977	8.04
NATIONAL BANK FINANCIAL INC.	$5,295,698,431	6.89
UBS SECURITIES CANADA INC.	$3,537,401,266	4.60
MERRILL LYNCH CANADA LTD.	$2,554,732,868	3.32
GENUITY CAPITAL MARKETS	$1,601,731,118	2.08

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