Most actively traded companies on the TSX

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

Toronto Stock Exchange (15,128.69, down 54.44 points):

Aurora Cannabis Inc. (TSX:ACB). Health care.Up 14 cents, or 5.41 per cent, to $2.73 on 4.4 million shares.

Encana Corp. (TSX:ECA). Oil and gas. Up eight cents, or 0.65 per cent, to $12.42 on 4.2 million shares.

Tembec Inc. (TSX:TMB). Forest Products. Oil and gas. Up 40 cents, or 9.39 per cent, to $4.66 on 3.4 million shares.

Calfrac Well Services Ltd. (TSX:CFW). Oil and gas. Down two cents, or 0.62 per cent, to $3.19 on 3.22 million shares.

Barrick Gold Corp. (TSX:ABX). Miner. Down $1.00, or 4.93 per cent, to $19.29 on 3.18 million shares.

Cenovus Energy Inc. (TSX:CVE). Oil and gas. Down two cents, or 0.21 per cent, to $9.32 on 3.03 million shares.

Companies reporting major news:

Norbord Inc. (TSX:OSB). Forest products. Up 70 cents, or 1.70 per cent, to $41.77 on 107,890 shares. The company says its oriented strand board mill in 100 Mile House, B.C., resumed production over the weekend. Norbord restarted after an evacuation order for 100 Mile House and nearby communities was lifted.