Key takeaways
- Nuclear demand is accelerating fast: Between AI data centers consuming massive amounts of power and governments pushing to triple nuclear capacity by 2050, the supply-demand setup for uranium and nuclear services is about as strong as I’ve seen it in years.
- Diverse ways to play it: Canadian-listed nuclear stocks give you exposure across the entire value chain, from uranium miners and fuel processors to engineering firms designing next-gen reactors and pipeline operators moving into nuclear power generation. That variety lets you pick your spot based on your risk tolerance.
- Uranium price swings are real: These stocks are tied to a commodity that can be wildly volatile, and many of the smaller names aren’t yet profitable or are still in development stages. If uranium prices pull back or reactor buildout timelines slip, the downside can be sharp, so position sizing matters a lot here.
My uranium thesis hasn’t changed in years: the world wants more carbon-free power, and nuclear is the only source that can deliver massive baseload capacity without the weather dependency of wind or solar. Countries that spent the last decade shutting reactors down are now restarting them or building new ones, and that shift doesn’t reverse on a dime. It takes a decade to permit and build a reactor, which means the demand signal for uranium is locked in regardless of what happens with the next rate decision or election cycle.
Canada sits in a strange spot here. We’re not just a uranium producer, we’re home to some of the richest deposits on the planet, and we’ve also got the engineering and construction muscle to actually build the plants. Cameco Corporation and NexGen Energy Ltd. represent the mining side of that story, pulling uranium out of the ground in Saskatchewan’s Athabasca Basin. IsoEnergy Ltd. is chasing the same prize but earlier in the development curve, which means more upside and more risk depending on how you want to frame it.
Then you’ve got the companies that build and run the actual infrastructure. AtkinsRéalis Group Inc. designs and services nuclear reactors around the world, a business I’ve touched on before when covering construction and engineering stocks. Aecon Group Inc. shows up on the construction side too, with a hand in nuclear refurbishment projects here at home. TC Energy Corporation rounds things out as a name most people associate with pipelines, but it’s also got exposure to power generation that ties into the broader energy transition, a theme I’ve dug into with pipeline stocks and utility stocks alike.
What I like about this group is the diversification within the theme itself. You’re not just betting on uranium prices going up. You’re betting on mining, engineering, construction, and power generation all benefiting from the same multi-decade shift. That’s a wider net than most investors realize when they hear “nuclear stocks” and assume it’s just miners digging rock out of the ground.
In This Article
- AtkinsRéalis Group Inc. (ATRL.TO)
- Cameco Corporation (CCO.TO)
- Aecon Group Inc. (ARE.TO)
- TC Energy Corporation (TRP.TO)
- NexGen Energy Ltd. (NXE.TO)
- IsoEnergy Ltd. (ISO.TO)
AtkinsRéalis Group Inc. (TSX: ATRL)
AtkinsRéalis Group Inc. operates through several key business segments, including Engineering Services, Nuclear, Operations & Maintenance (O&M), Linxon, and Capital...
Competitive Edge
- AtkinsRéalis owns the CANDU reactor technology and the intellectual property behind it, so every refurbishment at Darlington, Bruce, Pickering and Cernavoda flows through them. That is regulatory capture in its purest form: no competitor can bid a CANDU life extension.
- The MONARK CANDU design gives the company a seat at the table for new-build in Ontario, Romania and potentially India, an option that carries essentially zero cost today. Almost no peer in the engineering sector has owned reactor IP to sell.
- The pivot to an asset-light professional services model, with LSTK fixed-price work down to $152.5M, removes the balance sheet risk that destroyed value at Réal Montréal REM and Eglinton. Peers like WSP and Stantec already trade at services multiples for exactly this reason.
- UK revenue of $869M in the latest quarter exceeds Canada at $763M, giving real exposure to Sizewell C, HS2 successor work and the UK Ministry of Defence framework. That diversifies away from Canadian infrastructure budget cycles.
- Management spent 96% of buyback dollars in years when the stock traded below its own five-year median multiple, and ROIC moved from negative 3.3% in FY2020 to 5.3% in FY2025. The turnaround has been executed in the right sequence: fix the projects, then buy the stock.
By the Numbers
- Nuclear revenue compounded from $896M in FY2022 to $2,301.9M in FY2025, with adjusted EBIT up 40.2% to $258.1M last year. That single segment now carries roughly a quarter of the EBIT base and is the reason group margins keep grinding higher.
- Backlog reached $21.2B in FY2025, up 21.5%, after 12.6% and 23.5% gains in the prior two years. Backlog is now roughly 1.9x trailing revenue of $11.0B, which buys visibility most engineering firms lack.
- The LSTK legacy book is almost extinguished: revenue down 38.9% to $152.5M from $907.2M in FY2021, while its EBIT drag narrowed to negative $111.7M from negative $302.6M. Each dollar of runoff is a pure margin tailwind with no revenue cost.
- Net debt of $486M sits at 0.56x EBITDA against $1.32B total debt, so cash on the balance sheet is doing most of the work. Operating cash flow covers 59% of gross debt in a single year, leaving room for both buybacks and nuclear working capital.
- Linxon swung from negative $9.8M adjusted EBIT in FY2022 to positive $55.6M in FY2025 on $970.2M revenue, with EBIT up 66.4% quarter over quarter. A perennial problem unit is now a 5.7% margin business tied to grid spending.
Risk Factors
- Quarterly backlog has gone the other way: $20.18B after declines of 4.4% and 0.5% in the last two quarters, versus the $21.2B FY2025 annual figure. Book-to-bill below one for two straight quarters is the leading indicator that annual data hides.
- Organic growth is rolling over fast. Total organic revenue growth fell to 8.3% from a level 35.2% higher a quarter earlier, with Nuclear organic halving to 18.1% and Engineering Services organic at just 2.2%. The engine is Nuclear, and Nuclear is decelerating.
- Earnings quality is the soft spot. Reported profit runs 6.1% of assets ahead of cash collected, DSO sits at 123 days against DPO of 85, and receivables turn only 2.96x. Cash is trailing the income statement by a wide margin.
- Goodwill and intangibles are 32.4% and 34.0% of assets, so tangible book is $7.15 per share against a $92.56 price. Book value per share of $33.48 is mostly Atkins and Faithful+Gould purchase accounting, not hard assets.
- Capital segment revenue halved to $63.3M and its EBIT fell 56.6% to $46.3M. That unit was 10% of group adjusted EBIT in FY2024 and delivers near-100% margin income, so its shrinkage hits earnings quality harder than its revenue line suggests.
Cameco Corporation (TSX: CCO)
Cameco Corporation operates across the nuclear fuel cycle through three primary segments: Uranium, Fuel Services, and Westinghouse. The Uranium segment focuses on the exploration, mining, milling, and sale of uranium concentrates, anchored by major assets like the McArthur River and Cigar Lake mines in Saskatchewan, as well as operations in the United States and Kazakhstan...
Competitive Edge
- Cameco's 49% stake in Westinghouse creates the only integrated uranium miner-to-reactor-services platform globally. This vertical integration locks in demand visibility across the fuel cycle, from mine to fuel assembly to reactor maintenance.
- Saskatchewan's Athabasca Basin hosts the world's highest-grade uranium deposits. McArthur River/Key Lake averages 15-20% U3O8 grade versus the global average below 1%, giving Cameco a structural cost advantage no competitor can replicate through exploration alone.
- The global nuclear renaissance, with 60+ reactors under construction and major policy support from the US IRA, EU taxonomy, and China's 150-reactor buildout plan, creates a demand floor that extends well beyond typical commodity cycles. Contract books are filling at higher prices.
- Cameco's disciplined supply curtailment strategy from 2018-2022, voluntarily idling McArthur River, tightened the global uranium market and helped drive spot prices from $20/lb to $100+/lb. Few commodity producers have demonstrated this level of strategic patience.
- Long-term contracting with utilities provides revenue visibility that most commodity producers lack. The shift from spot-heavy to contract-heavy sales (typically 3-10 year terms with price escalators) reduces earnings volatility and supports the premium valuation.
By the Numbers
- Net cash position of C$116M with a current ratio of 3.06 and cash ratio of 1.39 gives Cameco exceptional financial flexibility in a capital-intensive sector where peers often carry heavy leverage. This balance sheet optionality is critical as uranium capex ramps.
- Uranium average realized price has compounded from C$43.34/lb in FY2021 to C$87/lb in FY2025, a 100%+ increase, while production volumes grew from 6.1M to 21M lbs. The simultaneous price and volume expansion is rare and reflects disciplined supply management.
- FCF-to-net-income ratio of 1.57x signals high earnings quality. Cash generation meaningfully exceeds reported profits, suggesting conservative accounting and real economic value creation rather than accrual-driven earnings inflation.
- Fuel Services gross profit surged 64.2% YoY on only 22.5% revenue growth, implying dramatic margin expansion. Fuel Services gross margin jumped from ~23% to ~31%, indicating pricing power in conversion services is accelerating faster than the uranium segment.
- Analyst EPS estimates project a trajectory from C$1.51 (Y1) to C$5.36 (Y5), a 3.6x increase. With a PEG of 1.07, the market is pricing growth roughly at fair value relative to the expected earnings ramp, not yet at a speculative premium.
Risk Factors
- Trailing P/E of 172x, EV/EBITDA of 76x, and P/FCF of 109x are extreme even for a commodity upcycle play. The forward P/E of 93x still requires flawless execution on the earnings ramp just to approach reasonable territory.
- Uranium capex doubled YoY (+101.9% to C$268M) while uranium production actually fell 10.3% to 21M lbs. This capex-to-output divergence suggests rising cost pressures at McArthur River/Cigar Lake or front-loaded spending for future capacity that may take years to pay off.
- Revenue declined 2.7% YoY and EPS dropped 40.4% YoY, a sharp reversal from the 3-year CAGR of 18.6% revenue growth and 56.8% EPS growth. The FCF conversion trend score of -1 confirms deteriorating cash flow quality on a trailing basis.
- The 'Other Product' segment consistently generates negative EBT (C$-414M in FY2025), acting as a persistent drag. This bucket, which includes corporate overhead and Westinghouse-related adjustments, consumed roughly a third of the combined uranium and fuel services pre-tax earnings.
- OCF-to-net-income of 2.65x looks strong, but FCF-to-OCF is only 59%, meaning capex is consuming 41% of operating cash flow. With capex-to-depreciation at 1.35x, the company is investing well above maintenance levels, compressing near-term free cash flow.
Aecon Group Inc. (TSX: ARE)
Aecon Group Inc. is a major Canadian construction and infrastructure development company that provides integrated services to private and public sector clients...
Competitive Edge
- Aecon's nuclear capabilities (Bruce Power, Darlington refurbishment) create a regulatory moat. Nuclear construction requires specialized licensing, safety certifications, and decades of institutional knowledge that new entrants cannot replicate quickly, locking in long-duration contracts.
- The deliberate shift toward cost-plus/unit price contracts (now 68% of revenue, up from 38% in FY2021) structurally de-risks the business model. This transfers inflation and scope-change risk to clients and should reduce the frequency of the margin blowups seen in FY2024.
- Canada's infrastructure deficit, estimated at over $150B by the Canadian Infrastructure Report Card, creates a secular demand floor. Aecon's positioning across transit, utilities, and nuclear means it captures multiple spending streams rather than depending on a single program.
- The concessions segment, while shrinking in revenue, generates disproportionate EBITDA ($56.8M on $7.6M revenue) through equity-method investments. These toll road and P3 assets provide recurring cash flows that smooth the inherent lumpiness of construction earnings.
By the Numbers
- Consolidated backlog surged 60.8% YoY to $10.7B, with $5.0B extending beyond 24 months (up 110% YoY). This provides roughly 2x trailing revenue in visibility, the strongest pipeline in at least five years, and heavily weighted toward longer-duration work.
- Construction Adjusted EBITDA exploded 544% YoY to $220M, swinging the segment margin from 0.8% to 4.1%. This confirms the FY2024 trough was project-specific, not structural, and the recovery is already flowing through to operating profit ($127M vs. -$55M prior year).
- FCF yield of 9.8% is exceptional for a construction company, with FCF-to-EBITDA at 1.07x, meaning the company is converting more than its reported EBITDA into free cash. Capex-to-depreciation at 0.76x shows the fleet is being sweated, not over-invested.
- Net debt is actually negative at -$146M (net cash position), with net debt/EBITDA at -0.55x. For a cyclical contractor that just came through a severe earnings trough, carrying net cash is a meaningful competitive advantage for bonding capacity and bid credibility.
- USA revenue has compounded from $35M (FY2021) to $627M (FY2025), a roughly 18x increase in four years, now representing 11.5% of total revenue. This geographic diversification reduces single-country risk and taps into US infrastructure spending tailwinds.
Risk Factors
- Interest coverage at 1.33x is dangerously thin for a cyclical business. Despite the net cash position, $484M in total debt carries servicing costs that nearly consumed all of EBIT ($87M trailing). Any project margin slip could push this below 1.0x.
- Trailing EPS of $0.23 against forward estimates of $1.53 implies a 565% earnings jump. Consensus requires near-perfect execution on the backlog. With only 6 analysts covering, estimate dispersion risk is high and the forward P/E of 27.8x prices in flawless delivery.
- Buyback yield is -5.4%, meaning shares outstanding grew 2.1% YoY while $37M in SBC (0.62% of revenue) diluted holders. The company is issuing equity faster than buying it back, so per-share economics are deteriorating even as the top line grows.
- DSO of 135 days is extremely elevated for a construction company and implies roughly $2.0B tied up in receivables. Combined with a cash conversion cycle of 39 days, working capital is absorbing significant cash that could otherwise fund returns or reduce debt.
- Gross margin at 8.9% and operating margin at 2.6% leave almost no buffer. Fixed-price revenue ($1.7B, 32% of total) carries inflation and execution risk. The FY2024 operating loss proved how quickly thin margins can turn negative on cost overruns.
TC Energy Corporation (TSX: TRP)
TC Energy Corporation is a major North American energy infrastructure company headquartered in Calgary, Alberta. The company primarily operates an extensive network of natural gas pipelines and storage facilities across Canada, the United States, and Mexico...
Competitive Edge
- The 94,000 km North American gas pipeline network, spanning Canada, the US, and Mexico LNG corridors, gives TC Energy regulatory-protected toll revenue that competitors cannot easily replicate given permitting timelines of a decade or more.
- Mexico pipelines now contribute $1.45B in revenue on long-term USD or inflation-linked contracts tied to CFE and private power demand, a structurally higher-growth outlet than the mature Canadian system.
- The negative cash conversion cycle of -118 days, driven by 218-day payables terms, means suppliers effectively finance working capital, a structural advantage of regulated infrastructure billing.
- LNG export terminal connections position the US gas pipeline segment to capture incremental volume as Gulf Coast liquefaction capacity comes online, a demand source largely outside Henry Hub price cycles.
By the Numbers
- Mexico segment EBITDA jumped 36.6% YoY to $1.37B, now the fastest growing pipeline region after capex there fell 76.6% YoY, meaning new assets are ramping without fresh capital drag.
- US Natural Gas Pipelines revenue accelerated to 12.7% YoY growth in FY2025 versus just 1.8% the prior year, reversing a multi-year deceleration trend.
- FCF to net income conversion sits at 0.92x with OCF running 1.95x net income, showing cash generation well ahead of reported earnings despite a 19% YoY EPS decline.
- Three-year total shareholder return compounded at 24.5% annually including dividends, far outpacing the 9.7% five-year figure, suggesting recent re-rating rather than a one-off spike.
- Historical P/FCF of 63.6x versus today's 22.4x shows the market once paid far more per dollar of free cash flow than it does now, even as FCF grew 99.6% YoY.
Risk Factors
- ROIC fell from 5.5% in FY2020 to 4.6% in FY2025 even as EBITDA grew, meaning each new dollar of invested capital is earning less. That is capital discipline eroding, not just a cyclical dip.
- EPS fell 18.2% YoY despite revenue growing 9.7% and EBITDA growing 13%, since the margin effect subtracted 6.6 points a year from FY2022 to FY2025, a cost or rate base drag swamping top line gains.
- Current ratio of 0.61x and quick ratio of 0.35x mean current liabilities exceed current assets by a wide margin, leaving no cushion if short-term refinancing gets tighter.
- Net debt to EBITDA of 6.2x paired with interest coverage of just 3.1x means a large share of operating profit is consumed by interest, leaving thin room if rates on refinanced debt rise.
- Payout ratio of 102.6% versus FCF payout ratio of 88.6% shows the dividend exceeds GAAP earnings entirely and still eats nearly all distributable free cash flow, leaving little buffer for the capex program.
NexGen Energy Ltd. (TSX: NXE)
NexGen Energy Ltd. is a pre-revenue Canadian mining company engaged in the acquisition, exploration, evaluation, and development of uranium properties...
Competitive Edge
- The Arrow deposit's grade is well above typical Athabasca Basin peers, which structurally lowers all-in sustaining cost per pound once in production, a durable cost advantage versus other development-stage uranium names.
- 100% ownership of Rook I avoids joint-venture dilution of economics seen at peers like Denison Mines' Wheeler River, giving NexGen full exposure to any uranium price upside.
- Uranium's supply-demand setup, driven by Western utilities diversifying away from Russian-enriched material and new reactor builds, gives a licensed, large-scale North American deposit strategic value beyond spot price moves.
- Being pre-production in a basin with established infrastructure (proximity to Cameco's Cigar Lake and McArthur River) reduces logistical and permitting uncertainty relative to greenfield uranium projects elsewhere.
By the Numbers
- Current ratio of 1.46x and cash ratio of 1.44x are nearly identical, meaning the balance sheet is sitting almost entirely in cash and equivalents rather than receivables or inventory, unusual comfort for a pre-revenue miner.
- Net debt is actually negative at -357 million CAD against 613 million of total debt, meaning cash on hand more than covers all borrowings, a rare position for a company funding a multi-billion dollar capex program.
- Three and five year total shareholder returns of 16.5% and 17.2% annualized show the market has rewarded de-risking of the Arrow deposit even as the P&L stays deeply negative, a sign the stock trades on resource optionality, not earnings.
- Debt to equity of 0.33x and zero long-term debt to capital suggests the 613 million in debt is largely structured as convertible or project-level financing rather than straight leverage against existing assets.
Risk Factors
- Shares outstanding grew 10.8% in the past year and 9.7% annually since FY2020, while shareholder yield sits at -11%, confirming equity raises are funding the business, not buybacks or dividends.
- Interest coverage of 2.53x is thin for a company with 613 million in debt and no revenue, leaving little buffer if financing costs rise before Arrow reaches production.
- FCF per share of -0.19 CAD and FCF growth YoY of 130% moving in the wrong direction (more negative) shows cash burn is accelerating even as EPS growth of 48.6% YoY looks superficially strong.
- EV/EBITDA of -79.6x sits 28% above its own 5-year average of -62.2x, meaning the stock is pricier against its EBITDA loss today than it has typically been historically.
- Analyst estimates show net losses widening from -117 million in FY1 to -200 million by FY3, with EPS estimates of -0.21, -0.21 and -0.28 over the next three years, implying no near-term path to profitability.
IsoEnergy Ltd. (TSX: ISO)
IsoEnergy Ltd. is a mineral exploration and development company focused on the acquisition, exploration, and advancement of uranium properties...
Competitive Edge
- Hurricane deposit at Larocque East is described as the world's highest-grade indicated uranium resource, a geological advantage that lowers extraction cost per pound versus lower-grade Athabasca Basin peers once in production.
- Geographic diversification across Canada, the US, and Australia reduces single-jurisdiction permitting or political risk relative to single-asset uranium developers.
- Zero meaningful debt and a large cash position give management optionality to acquire distressed uranium assets or fund drilling through a down cycle without needing capital markets access on unfavorable terms.
By the Numbers
- Net debt sits at negative 159 million CAD against only 6.4 million in total debt, meaning the company is sitting on a large net cash cushion despite pre-revenue economics.
- Current ratio of 10.2x and quick ratio of 10.0x show almost no near-term liquidity risk, unusual comfort for a company still burning cash from operations.
- FCF grew 26% YoY and EBITDA grew 23% YoY even as net income losses widened, suggesting the cash burn rate is improving faster than the accounting loss implies.
- Debt to equity of just 0.011x and long-term debt to assets of 0.0004 mean balance sheet risk is essentially a non-issue, freeing up the cash pile for exploration spend without solvency concerns.
Risk Factors
- Shares outstanding grew 14.6% in the last year and management grading flags a 19% annual share count increase from FY2020 to FY2025, this is the primary driver of shareholder value erosion, not operations.
- Shareholder yield of negative 9.98% confirms the dilution problem directly, the company is issuing equity faster than it could ever return capital, and buyback yield contributes to that same negative figure rather than offsetting it.
- ROIC is negative 5.4% and net debt to EBITDA is 6.8x on a negative EBITDA base, both figures signal that invested capital is currently destroying value with no earnings base to service even modest leverage.
- OCF to debt of negative 2.09x and unlevered FCF of negative 19.9 million CAD show the core business consumes cash annually at a pace that would deplete the 159 million cash pile within roughly 8 years if unchanged.
- Five-year historical P/B averaged 8.42x versus 1.59x today, a collapse in the multiple that reflects genuine erosion in market confidence, not merely a re-rating of a stable business.
Uranium stocks have always been a game of patience dressed up as excitement. The headlines move fast, new reactor announcements, supply agreements, restart decisions, but the actual cash flow in this sector moves on a timeline most people aren’t built for. That mismatch is where investors get burned. They buy into a story that takes a decade to play out expecting a return in eighteen months, then bail right before the thesis actually starts paying off.
What I’d actually watch for going forward isn’t the next price swing in the commodity itself. It’s whether the companies turning uranium into actual power delivery keep landing contracts, because that’s the real confirmation the demand story is showing up in order books and not just in press releases.
Nuclear isn’t a trade you check daily. It’s a position you take because you believe the next twenty years of power generation look different from the last twenty, then you let the companies prove you right on their own schedule.