Most actively traded companies on the TSX

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

Toronto Stock Exchange (15,517.40, down 336.65 points).

Aurora Cannabis Inc. (TSX:ACB). Health care. Down 11 cents, or 0.83 per cent, to $13.13 on 33.3 million shares.

Aphria Inc. (TSX:APH). Health care. Up $2.64, or 15.1 per cent, to $20.06 on 26.4 million shares.

Bombardier Inc. (TSX:BBD.B). Industrials. Down 26 cents, or 6.18 per cent, to $3.95 on 19.6 million shares.

Baytex Energy Corp. (TSX:BTE). Energy. Down 28 cents, or 7.47 per cent, to $3.47 on 10.8 million shares.

Canadian Natural Resources Ltd. (TSX:CNQ). Energy. Down $1.22, or 3.02 per cent, to $39.12 on 10.1 million shares

RNC Minerals. (TSX:RNX). Metals. Down one cent, or 1.33 per cent, to 74 cents on 9.8 million shares.

Companies reporting major news:

SNC-Lavalin Group Inc. (TSX:SNC). Down $6.99 or 13.5 per cent to $44.86. The Montreal-based engineering and construction company’s shares plunged to their lowest level in years on Wednesday after it announced that federal prosecutors won’t agree to negotiate a deal that would set aside unproven fraud and corruption charges in return for fines, co-operation and other reparations. SNC shares haven’t closed below $45 since early 2016.

WestJet Airlines. (TSX:WJA). Down 27 cents or 1.45 per cent to $18.36. The airline plans to launch non-stop service from Calgary to Dublin, Paris and London’s Gatwick Airport using its first three new Boeing 787 Dreamliner aircraft, challenging Air Canada with transatlantic flights that target business passengers and the jet set. The new routes reflect not just a grab for more would-be Air Canada passengers, but also an attempt to entice new travellers.