Some of the most active companies traded Monday on the Toronto Stock Exchange:

Toronto Stock Exchange (14,258.87, up 194.33 points):

Gran Colombia Gold Corp. (TSX:GCM). Miner. Up three cents, or 30 per cent, to 13 cents on eight million shares.

First Quantum Minerals Ltd. (TSX:FM). Miner. Up 80 cents, or 8.82 per cent, to $9.87 on 6.1 million shares.

Kinross Gold Corp. (TSX:K). Miner. Up 60 cents, or 9.46 per cent, to $6.94 on six million shares.

B2Gold Corp. (TSX:BTO). Miner. Up 20 cents, or 6.17 per cent, to $3.44 on 5.2 million shares.

Yamana Gold Inc. (TSX:YRI). Miner. Up 43 cents, or 6.40 per cent, to $7.15 on 4.9 million shares.

WesternOne Inc. (TSX:WEQ). Engineering and construction. Down 16 cents, or 47.76 per cent, to 17.5 cents on 4.1 million shares.

Companies reporting major news:

Gran Tierra Energy Inc. (GTE). Oil and gas. Down 30 cents, or 6.91 per cent, to $4.04 on 1.8 million shares. Gran Tierra Energy Inc. has lined up its third major Colombian acquisition of 2016. The Calgary-based company has agreed to pay US$525 million cash for PetroLatina Energy Ltd. Gran Tierra says the acquisition will add 53 million barrels to its proven and probable reserves.