by The Canadian Press Posted Jan 3, 2013 5:17 pm MDT Most actively traded companies on the TSX, TSX Venture Exchange markets AddThis Sharing ButtonsShare to TwitterTwitterShare to FacebookFacebookShare to RedditRedditShare to 電子郵件Email TORONTO – Some of the most active companies traded Thursday on the Toronto Stock Exchange and the TSX Venture Exchange:Toronto Stock Exchange (12,470.44 down 70.33 points):Bombardier Inc. (TSX:BBD.B). Transportation. Down one cent, or 0.26 per cent, at $3.84 on 7,557,896 shares.Petrobank Energy and Resources Ltd. (TSX:PBG). Oil and gas. Up two cents, or 1.71 per cent, at $1.19 on 5,693,110 shares.Golden Star Resources Ltd. (TSX:GSC). Miner. Down 18 cents, or 9.52 per cent, at $1.71 on 5,352,453 shares.Manulife Financial Corp. (TSX:MFC). Financial services. Up 27 cents, or 1.98 per cent, at $13.94 on 4,911,643 shares.Granite Real Estate Inc. (TSX:GRT). Up 80 cents, or 2.12 per cent, at $38.59 on 4,179,984 shares.Uranium One Inc. (TSX:UUU). Miner. Down three cents, or 1.27 per cent, at $2.33 on 4,001,946 shares.TSX Venture Exchange (1,226.17 down 13.67 points):Stetson Oil & Gas Ltd. (TSXV:SSN). Unchanged at 12.5 cents on 5,564,577 shares.Castillian Resources Corp. (TSXV:CT). Oil and Gas. Up half a cent, or 25 per cent, at 2.5 cents on 4,631,000 shares.Companies reporting major news:Research In Motion (TSX:RIM). Wireless technology. Down 22 cents, or 1.90 per cent, at $11.35 on 2,838,727 shares. The company said Thursday it will launch the BlackBerry Curve 9315, a slightly updated version of the keypad phones already on the market, in the United States. The launch is exclusively through U.S. carrier T-Mobile, and a release date is set for Jan. 23. The model has already been released in other regions, including Europe, Asia and Latin America.Brookfield Asset Management (TSX:BAM.A). Down one cent, or 0.03 per cent, at $36.59 on 847,066 shares. The company and Pershing Square have called a truce in their dispute over the future of General Growth Properties (NYSE:GGP), which owns shopping malls in the U.S. and Brazil. Pershing Square — headed by Bill Ackman — had been pushing for a sale of General Growth, a plan that had been opposed by Brookfield, the real estate firm’s largest shareholder.