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

Toronto Stock Exchange (14,299.08 up 27.16 points):

Bombardier Inc. (TSX:BBD.B). Aerospace. Up one cent, or 0.28 per cent, at $3.60 on 6.4 million shares. Bombardier is freezing the salaries of its roughly 38,000 non-unionized employees as it deals with costly delays in the launch of its CSeries commercial jet.

Talisman Energy Inc. (TSX:TLM). Oil and gas. Up seven cents, or 0.64 per cent, at $11.05 on 4.8 million shares.

Canexus Corp. (TSX:CUS). Chemicals. Down 76 cents, or 12.67 per cent, at $5.24 on 4.4 million shares.

Turquoise Hill Resources Ltd. Miner. Down two cents, or 0.44 per cent, at $4.52 on 4.3 million shares.

Penn West Petroleum Ltd. (TSX:PWT). Oil and gas. Up 71 cents, or 8.16 per cent, at $9.41 on 3.9 million shares. The company reported a fourth-quarter net loss of $728-million compared with a loss of $78-million a year ago, mostly due to non-cash asset impairment charges related to the company's disposal of natural gas assets late last year as it focuses on light oil production in Western Canada.

Ballard Power Systems Inc. (TSX:BLD). Industrial products. Up 25 cents, or 4.46 per cent, to $5.85 on 3.7 million shares.

Toronto Venture Exchange (1,043.01 up 3.65 points):

Enablence Technologies Inc. (TSXV:ENA). Communication equipment. Up 0.5 cents, or 4.55 per cent, at 11.5 cents on 13.7 million shares.

Graphite One Resources Inc. (TSXV:GPH). Miner. Up five cents, or 31.25 per cent, at 21 cents on seven million shares.

Company reporting major news:

Constellation Software Inc. (TSX:CSU). Up $28.76, or 12.15 per cent, at $265.48 on 88,383 shares. The Toronto-based provider of software and services to government and business reported after markets closed Thursday an increase in fourth-quarter profits to US$43 million or $2 per diluted share from US$40 million or $1.89 per share in the same 2012 period as revenue grew 30 per cent — including five per cent organic growth — to US$340 million from US$261.

News from © The Canadian Press, 2014