TSX close — Tuesday, 21 October 2025

TSX closed down 0.43%

TSX treemap for Tuesday, 21 October 2025: each company sized by market capitalisation and coloured by its move that day

TSX movers — October 21, 2025

Of the 703 companies tracked in the TSX, 205 rose and 415 fell, with 83 unchanged. Consumer Discretionary led the day at +0.97%, while Materials lagged at -7.97%.

Top gainers · TSX

CRDL.TO CARDIOL THERAPEUTICS INC +14.67%
ASTL.TO ALGOMA STEEL GROUP INC +11.99%
NPK.TO VERDE AGRITECH LTD +7.95%
MKZ-UN.TO MACKENZIE MSTR UN +7.41%
DCM.TO DATA COMMUNICATIONS MGMT CORP +6.11%
AIDX.TO HEALWELL AI INC +5.80%
TWC.TO TWC ENTERPRISES LIMITED +5.48%
BU.TO BURCON NUTRASCIENCE CORPORATION +5.43%

Top losers · TSX

DIAM.TO STAR DIAMOND CORPORATION -25.00%
AAB.TO ABERDEEN INTERNATIONAL INC. -25.00%
XMF-A.TO M SPLIT CORP CAPITAL SHARES 201 -20.00%
ASM.TO AVINO SILVER AND GOLD MINES LTD -16.80%
NUAG.TO NEW PACIFIC METALS CORP -15.69%
AYA.TO AYA GOLD AND SILVER INC -15.23%
AUMN.TO GOLDEN MINERALS COMPANY -15.15%
EDCU.TO EDGE COPPER CORPORATION -15.00%

By sector

Consumer Discretionary +0.97%
Real Estate +0.43%
Technology -0.20%
Industrials -0.22%
Consumer Staples -0.22%
Financials -0.36%
Utilities -0.43%
Energy -0.90%
Healthcare -1.45%
Communication Services -2.04%
Unknown -6.15%
Materials -7.97%

Open the interactive TSX map ← 20 Oct 2025 22 Oct 2025 →All sessions

The same session elsewhere: S&P 500 NASDAQ Dow Jones

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