Some of the most active companies traded Friday on the Toronto Stock Exchange:Toronto Stock Exchange (16,043.54, down 17.96 points)The Green Organic Dutchman Holdings Ltd. (TSX:TGOD). Healthcare. Up 72 cents, or 12.70 per cent, to $6.39 on 9.8 million shares.Bombardier Inc. (TSX:BBD.B). Aerospace, rail equipment. Down five cents, or 1.02 per cent, to $4.83 on 7.1 million shares. Credit rating agency DBRS Ltd. says it has changed its trend outlook on Bombardier from stable to positive, but kept its credit rating unchanged at B.Toronto-Dominion Bank (TSX:TD). Bank. Down 68 cents, or 0.90 per cent, to $75.02 on 5.7 million shares.Cenovus Energy Inc. (TSX:CVE). Oil and gas. Down 24 cents, or 1.75 per cent, to $13.44 on 5.3 million shares.Baytex Energy Corp. (TSX:BTE). Oil and gas. Down 10 cents, or 1.83 per cent, to $5.35 on 5.2 million shares.Nemaska Lithium Inc. (TSX:NMX). Miner. Up one cent, or 0.96 per cent, to $1.05 on 4.9 million shares.Companies reporting major news:Bank of Nova Scotia (TSX:BNS). Bank. Down $1.28, or 1.64 per cent, to $76.96 on 3.9 million shares. The bank announced after markets close on Thursday that it will acquire MD Financial Management, a provider of financial services to physicians and their families, for $2.585 billion in an all-cash deal.