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

Toronto Stock Exchange (13,319.87 down 99.70 points):

Baja Mining Corp. (TSX:BAJ). Miner. Down a penny, or 66.67 per cent, at half a cent on 36.30 million shares.

B2Gold Corp. (TSX:BTO). Miner. Up 10 cents, or 4.85 per cent, at $2.16 on 5.95 million shares.

Surge Energy Inc. (TSX:SGY). Oil and gas. Up 44 cents, or 6.96 per cent, at $6.76 on 5.67 million shares. The Calgary-based company revised its 2013 exit guidance and 2014 guidance after closing an acquisition in the central Alberta region. The company also announced a four per cent boost to its annual dividend to 52 cents starting Jan. 15.

Bank of Montreal (TSX:BMO). Bank. Down $3.28, or 4.46 per cent, at $70.25 on 5.47 million shares. The bank delivered adjusted quarterly income of $1.64 per share, down one cent from a year earlier but ahead of analyst estimates of $1.58 per share. However, those results included a one-time gain of $121 million worth roughly 19 cents per share, without which BMO’s core number would be $1.45 per share, well below consensus.

Cequence Energy Ltd. (TSX:CQE). Oil and gas. Up a penny, or 0.60 per cent, at $1.69 on 5.03 million shares.

Toronto Venture Exchange (915.29 down 7.20 points):

Sea Dragon Energy Inc. (TSXV:SDX). Oil and gas. Unchanged at 6.5 cents on 8.45 million shares.

IBC Advanced Alloys Corp. (TSXV:IB). Miner. Up 8.5 cents, or 154.55 per cent, at 14 cents on 5.65 million shares.

Companies reporting major news:

BlackBerry Ltd. (TSX:BB). Wireless technology. Down eight cents, or 1.18 per cent, at $6.72 on 1.42 million shares. The struggling smartphone maker announced the latest update to its Blackberry Enterprise Server, the security and management system that supports corporate and government clients, in a move to stem losses among such clients to competitors.

Potash Corp. (TSX:POT). Fertilizer. Up 11 cents, or 0.33 per cent, at $33.82 on 3.72 million shares. The Saskatoon-based company cut its workforce by about 18 per cent or 1,045 people, with the biggest hit in Saskatchewan. New Brunswick, Florida, North Carolina and Trinidad will also see job losses amid weakness in potash prices.