05/28/2012 04:52 EDT | Updated 07/28/2012 05:12 EDT

Most actively traded companies on the TSX, TSX Venture Exchange markets

TORONTO - Some of the most active companies traded Monday on the Toronto Stock Exchange and the TSX Venture Exchange:

Toronto Stock Exchange (11,335.77, down 25.43 points):

Bombardier Inc. (TSX:BBD.B). Transportation. Up one cent, or 0.27 per cent, at $3.68 on 7,901,865 shares.

BlackPearl Resources Inc. (TSX:PXX). Oli and gas. Down 21 cents, or 5.66 per cent, at $3.50 on 5,042, 042 shares.

Suncor Energy Inc. (TSX:SU). Oil and gas. Up 24 cents, or 0.87 per cent, at $27.71 on 5,035,603 shares.

Talisman Energy Inc. (TSX:TLM). Oil and gas. Down five cents, or 0.47 per cent, at $10.62 on 5,028,018 shares.

Eldorado Gold Corp. (TSX:ELD). Miner. Up 56 cents, or 4.71 per cent, at $12.45 on 4,891,147 shares.

Barrick Gold Corp. (TSX:ABX). Miner. Up 12 cents, or 0.27 per cent, at $43.77 on 3,809,613 shares.

TSX Venture Exchange (1,278.55, down 13.04 points):

Petro Vista Energy Corp. (TSXV:PTV). Oil and gas. Up 2.5 cents, or 31.25 per cent, at 10.5 cents on 7,813,111 shares.

GMV Minerals Inc. (TSXV:GMV). Miner. Up 6.5 cents, or 130 per cent, at 11.5 cents on 2,816,722 shares.

Companies reporting major news:

Telus Corp. (TSX:T). Telecom. Up 16 cents, or 0.27 per cent, at $59.63 on 425,654 shares. Canada's second-largest telecom company said it would invest $840 million in Quebec over the next three years as part of its 2012 capital spending program. Part of the money will be used to expand the reach of its most advanced wireless network in the Montreal and Quebec City areas.

BCE Inc. (TSX:BCE). Telecom. Up 23 cents, or 0.56 per cent, at $41.12 on 1,273,854 shares. A weekend deal involving the company and its financial backers will see Bell Canada add a minority ownership stake in 11 data centres in Alberta, British Columbia and Ontario to its holdings.Bell will contribute $180 million of the cost of acquiring Q9 Networks Inc. while $420 million will come from the Ontario Teachers Pension Plan and two U.S. private equity funds, Providence and Madison Dearborn.

Calypso Uranium Corp. (TSXV:CLP). Miner. Unchanged at 10 cents. The company said Cameco Corp. (TSX:CCO. Miner, down 20 cents, or 1.03 per cent, at $19.21 on 736,873 shares) bowed out of their exploration agreement for several properties in Argentina as the result of a strategic shift in focus. Saskatoon-based Cameco, Canada's largest uranium producer, could have acquired a 51 per cent interest in Calypso's subsidiary Energia Mineral Inc. under a three-year option agreement signed in September 2010.

Rubicon Minerals (TSX:RMX). Miner. Down 18 cents, or 5.98 per cent, at $2.83 on 1,963,867 shares. The company said Monday that Agnico-Eagle Mines (TSX:AEM. Down two cents, or 0.05 per cent, at $42.24 on 1,923,666 shares) has sold a significant portion of its stake in Rubicon. Agnico-Eagle invested $70 million in Rubicon last summer and signed a technical services agreement that gave Rubicon access to its geological and engineering mining team.