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Canadian (TSX) Stocks - Biggest Losers Today

UPDATED May 20, 2026

Explore the Canadian (TSX) Biggest Losers Today. These stocks have seen the largest drop in Market Cap from the previous trading day.

2,929 companies
CompanyLast Price1D Return1Y ReturnMarket CapAnalysts TargetValuationGrowthDiv YieldIndustry
CVE
CA$41.93-4.1%127.9%CA$81.8bCA$44.5316.91.5%2.1%Energy
SU
CA$93.30-2.6%91.4%CA$113.1bCA$98.2117.42.8%2.6%Energy
IMO
CA$183.85-2.9%84.2%CA$91.6bCA$151.5630.45.8%1.9%Energy
CNQ
CA$67.11-1.2%57.5%CA$141.4bCA$71.0014.4-5.6%3.7%Energy
TRI
CA$117.25-2.5%-57.3%CA$52.5bCA$172.4324.312.7%3.1%Commercial Services
NTR
CA$96.37-2.1%16.5%CA$47.3bCA$108.9014.1-6.2%3.1%Materials
QSP.UN
CA$104.73-2.7%8.4%CA$35.1bn/a18.0n/a3.4%Consumer Services
TOU
CA$67.15-2.3%2.5%CA$26.7bCA$71.3036.913.3%3.0%Energy
SCR
CA$48.81-4.9%70.4%CA$11.0bCA$50.4041.535.9%2.5%Energy
WSP
CA$191.07-1.9%-30.6%CA$26.3bCA$315.5026.724.8%0.8%Capital Goods
TIH
CA$214.79-2.3%85.6%CA$17.9bCA$226.0034.017.6%1.0%Capital Goods
WCP
CA$16.85-1.9%97.3%CA$20.9bCA$19.2024.322.2%4.3%Energy
STN
CA$102.83-2.7%-26.0%CA$12.1bCA$149.8223.920.4%1.0%Capital Goods
CSU
CA$2,715.00-0.5%-44.4%CA$57.8bCA$3,957.0356.317.5%0.2%Software
ATH
CA$12.12-4.4%129.5%CA$6.1bCA$12.5626.736.0%n/aEnergy
ALA
CA$53.03-1.6%39.4%CA$16.8bCA$54.7332.925.9%2.5%Utilities
ARX
CA$31.40-1.4%6.8%CA$18.0bCA$33.2412.2-4.9%2.7%Energy
PPL
CA$67.75-0.6%31.0%CA$39.6bCA$65.1725.48.8%4.3%Energy
AAUC
CA$36.25-4.6%104.8%CA$4.8bCA$44.092.474.5%n/aMaterials
GMIN
CA$42.74-2.1%105.8%CA$10.4bCA$63.4021.535.9%n/aMaterials
TVE
CA$13.00-3.1%194.8%CA$6.4bCA$14.034.647.5%1.2%Energy
PEY
CA$26.43-3.3%37.4%CA$5.6bCA$27.8911.47.1%5.0%Energy
MX
CA$83.19-2.6%84.8%CA$6.6bn/a1.344.6%1.2%Materials
BTE
CA$7.12-2.7%212.3%CA$5.3bCA$7.553.5105.2%1.3%Energy
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