Stock markets encountered a widely anticipated correction in the first quarter of 2026. The S&P 500 declined 4.63% in U.S. dollar terms, while Canada’s S&P/TSX Composite posted a modest price gain of 3.3% and a total return of 3.94% when dividends are included. Early gains in January and February evaporated as volatility surged following the February 28 strikes by the United States and Israel against targets in Iran, underscoring how quickly geopolitical events can alter market sentiment.
Despite broad-market weakness, a notable group of Canadian large- and mid-cap stocks delivered exceptional returns in Q1, particularly in the energy and energy-adjacent sectors. Leading the pack was Calgary-based Tenaz Energy Corp., whose share price jumped 159% during the quarter. HydroGraph Clean Power of Vancouver followed with an approximate 140% increase, reflecting investor enthusiasm for companies positioned at the intersection of energy production and advanced materials.
Tenaz’s dramatic recovery reflects operational improvements and a rapid increase in output. The company reported a return to profitability and a significant boost in production in 2025, driven in large part by the successful acquisition and integration of natural gas assets in the Dutch North Sea. Tenaz’s Alberta operations also contributed to improved cash flow and investor confidence. HydroGraph, meanwhile, is a pre-commercial refiner and manufacturer of graphene and other nanomaterials using a proprietary process. Recent regulatory approvals in the United States and progress toward commercialization have helped push HydroGraph into mid-cap territory and attracted speculative interest.
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Calgary-based Spartan Delta Corp., an Alberta-focused oil producer, also produced strong returns with a near 80% increase in its share price. In total, seven of the top 10 performers were directly tied to the traditional energy sector, and two additional names—HydroGraph and 5N Plus—have significant exposure to energy storage and advanced materials. These winners included integrated oil producers such as Cenovus Energy and Imperial Oil, illustrating that both exploration-and-production names and larger integrated players benefited from rising commodity prices.
The common thread among many of these top performers was exposure to disruptions in global oil and gas flows, particularly through the Strait of Hormuz, which elevated energy prices and improved near-term cash flow prospects for producers. Commodity-price impacts tend to flow unevenly through the market, and companies with healthy balance sheets, scalable production or credible paths to commercialization generally saw the largest gains.
Another standout in Q1 was Vancouver-based Methanex Corp., the world’s largest supplier of methanol, which climbed nearly 60% during the quarter despite a late-period pullback on the final trading day. Methanex’s performance highlights the volatility of commodity-linked stocks and emphasizes that successful investors in this environment need the risk tolerance to endure sharp intra-quarter moves.
Below is a table of Canadian companies with market capitalizations of $2 billion or more that produced the largest percentage gains in Q1 2026. The list covers a range of businesses, from exploration and production companies to manufacturers tied to energy storage and industrial materials, illustrating the breadth of opportunities during this period of elevated energy prices and geopolitical uncertainty.
| Rank | Company name | Ticker | Dec. 31 close ($) | Mar. 31 close ($) | % gain |
|---|---|---|---|---|---|
| 1 | Tenaz Energy Corp. | TNZ | 26.50 | 64.63 | 159.1 |
| 2 | HydroGraph Clean Power | HG | 2.61 | 6.95 | 139.9 |
| 3 | Spartan Delta Corp. | SDE | 7.25 | 13.00 | 79.8 |
| 4 | Vermilion Energy Inc. | VET | 11.42 | 19.17 | 67.9 |
| 5 | 5N Plus Inc. | VNP | 17.72 | 31.67 | 65.6 |
| 6 | Cenovus Energy Corp. | CVE | 23.22 | 36.94 | 60.2 |
| 7 | Methanex Corp. | MX | 54.44 | 82.85 | 59.5 |
| 8 | Ovintiv Inc. | OVV | 53.79 | 82.55 | 58.9 |
| 9 | Athabasca Oil Corp. | ATH | 7.03 | 11.25 | 55.4 |
| 10 | Imperial Oil Ltd. | IMO | 118.58 | 182.44 | 53.6 |
Notably, none of the top 10 performers in Q1 overlapped with the previous quarter’s leaders. That lack of continuity reinforces an important investing lesson: momentum can influence short-term returns, but past performance is not a reliable predictor of future results. Market leadership can shift quickly, especially when geopolitical events, commodity price swings and company-specific developments converge.
For investors tracking Canadian equities, Q1 2026 underlines the value of diversification and the need to understand the specific drivers behind a stock’s move—whether operational improvements, successful acquisitions, regulatory milestones, or exposure to macro events such as supply disruptions. While some companies enjoyed dramatic gains, the broader market environment remained volatile, reminding investors to balance opportunity-seeking with risk management.
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