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

Toronto Stock Exchange (20,244.29, up 89.75 points.)

Canadian Natural Resources (TSX:CNQ). Energy. Up 42 cents, or 1.02 per cent, to $41.64 on 16.5 million shares.

Cenovus Energy Inc. (TSX:CVE). Energy. Up four cents, or 0.37 per cent, to $10.82 on 10.3 million shares.

National Bank of Canada. (TSX:NA). Financials. Down $1.28, or 1.33 per cent, to $95 on 6.3 million shares.

Enbridge Inc. (TSX:ENB). Energy. Up 51 cents, or 1.03 per cent, to $50.28 on 5.6 million shares.

Suncor Energy Inc. (TSX:SU). Energy. Down 31 cents, or 1.29 per cent, to $24.27 on 5.5 million shares.

Canadian Imperial Bank of Commerce. (TSX:CM). Financials. Up 11 cents, or 0.08 per cent, to $142.94 on 5.1 million shares.

Companies in the news:

VoIP.ms — Canadian communications company VoIP.ms says its services continue to be disrupted after a network attack that started last week. The company says a distributed denial of service (DDoS) attack was identified on Thursday, and their team has been responding to the attack since. On Tuesday, VoIP.ms says on its website the company is continuing to work on stabilizing its voice calling servers. The company said other services including SMS, call recording and conference recording services have been restored. It says access to its website has also been restored but measures are still in place to protect the site from further attacks. VoIP.ms has offices in Montreal and Mexico, and provides voice-over-internet protocol (VoIP) phone services to customers across North America.

This report by The Canadian Press was first published Sept. 21, 2021.