Top Losers lists the stocks that have fallen the most since the previous close, ranked by percent change with the biggest decliners first; the top 100 are shown. Sharp one-day drops can signal bad news or a breakdown, but they also create oversold bounce candidates, so look at the trend and support levels before deciding. Prices are in Canadian dollars, and the list covers TSX-listed stocks with at least C$1 million in average daily trading value.
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| Symbol | Name | Industry | Sector | Exchange | Cap | Cap, mln | Last | Change | Change, % | Volume |
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| Internet Content & Information | Communication Services | TSX | Large | 35,355 |
8.73 |
-3.64 | -29.43 | 627,125 |
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| Semiconductors | Technology | TSX | Mega | 654,835 |
36.72 |
-14.78 | -28.7 | 1,828,789 |
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| Trucking | Industrials | TSX | Large | 10,689 |
130.05 |
-27.09 | -17.24 | 921,457 |
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| Computer Hardware | Technology | TSX | Mid | 4,824.33 |
27.96 |
-4.25 | -13.19 | 1,740,402 |
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| Financial Data & Stock Exchanges | Financial Services | TSX | Large | 50,599 |
8.64 |
-1.08 | -11.11 | 363,271 |
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| Semiconductors | Technology | TSX | Mega | 250,799 |
21.28 |
-2.64 | -11.04 | 155,172 |
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| Semiconductors | Technology | TSX | Large | 174,618 |
13.00 |
-1.58 | -10.84 | 1,606,692 |
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| Capital Markets | Financial Services | TSX | Large | 11,636 |
82.86 |
-10.02 | -10.79 | 728,290 |
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| Engineering & Construction | Industrials | TSX | Mid | 4,218.96 |
68.01 |
-8.07 | -10.61 | 425,255 |
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| Advertising Agencies | Communication Services | TSX | Large | 118,384 |
7.18 |
-0.83 | -10.36 | 227,557 |
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| Semiconductors | Technology | TSX | Large | 36,173 |
31.76 |
-3.51 | -9.95 | 696,445 |
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| Information Technology Services | Technology | TSX | Small | 1,821.84 |
2.91 |
-0.32 | -9.91 | 3,355,079 |
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| Other Industrial Metals & Mining | Basic Materials | TSX | Small | 915.03 |
1.43 |
-0.15 | -9.49 | 2,093,101 |
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| Software - Infrastructure | Technology | TSX | Mid | 5,697.37 |
10.33 |
-1.07 | -9.39 | 515,728 |
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| Silver | Basic Materials | TSX | Small | 1,382.66 |
6.76 |
-0.7 | -9.38 | 164,004 |
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| Gold | Basic Materials | TSX | Mid | 4,673.59 |
20.11 |
-2.06 | -9.29 | 1,216,999 |
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| Other Precious Metals & Mining | Basic Materials | TSX | Small | 1,909.78 |
10.05 |
-1.01 | -9.13 | 831,365 |
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| Other Industrial Metals & Mining | Basic Materials | TSX | Small | 1,040.39 |
5.67 |
-0.54 | -8.7 | 539,441 |
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| Capital Markets | Financial Services | TSX | Small | 817.35 |
2.64 |
-0.25 | -8.65 | 2,924,523 |
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| Software - Infrastructure | Technology | TSX | Mid | 7,719.47 |
11.75 |
-1.1 | -8.56 | 5,063,481 |
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| Aerospace & Defense | Industrials | TSX | Small | 896.93 |
32.60 |
-3.03 | -8.5 | 198,784 |
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| Copper | Basic Materials | TSX | Large | 27,235 |
28.90 |
-2.67 | -8.46 | 6,506,813 |
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| Computer Hardware | Technology | TSX | Mega | 317,226 |
30.21 |
-2.74 | -8.32 | 41,070 |
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| Other Precious Metals & Mining | Basic Materials | TSX | Small | 1,294.57 |
19.40 |
-1.75 | -8.27 | 82,371 |
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| 100 matches |
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| Data as of Oct 30, 2026, updated intraday |
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