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

Toronto Stock Exchange (16,393.95, down 61.78 points)

Aurora Cannabis Inc. (TSX:ACB). Healthcare. Down 17 cents, or 2.44 per cent, to $6.81 on 12.62 million shares.

Nemaska Lithium Inc. (TSX:NMX). Miner. Down six cents, or eight per cent, to 69 cents on 5.43 million shares.

Cenovus Energy Inc. (TSX:CVE). Oil and gas. Up 16 cents, or 1.23 per cent, to $13.13 on 4.92 million shares.

Cequence Energy Ltd. (TSX:CQE). Oil and gas. Up 2.5 cents, or 27.78 per cent, to 11.5 cents on 3.71 million shares.

Manulife Financial Corp. (TSX:MFC). Financial Services. Down seven cents, or 0.29 per cent, to $23.88 on 3.61 million shares.

Aphria Inc. (TSX:APH). Healthcare. Unchanged at $11.12 on 3.53 million shares.

Companies reporting major news:

CGI Group Inc. (TSX:GIB.A). Technology. Down 53 cents, or 0.64 per cent, to $82.91 on 655,000 shares. The U.S. arm of the group has been awarded a six-year cybersecurity contract from the U.S. government, worth a total of US$530 million. The contract builds on work that CGI Federal Inc. has already done to enhance the cybersecurity posture of agencies participating in a multi-year program overseen by the U.S. Department of Homeland Security.