Cameco (CCJ) Q3 2026 earnings review
Cameco raises its cost outlook as mill outages cut output
Cameco, the Canadian uranium miner and nuclear plant partner, slipped into an underlying loss as mine maintenance drove costs up. An extended shutdown at the Key Lake mill cut third-quarter uranium production by 20% and lifted produced cash costs 62%. Chief executive Tim Gitzel trimmed the top of the full-year production and delivery plans while raising the unit cost forecast for a second straight quarter.
| Revenue | $619M +1% from a year ago |
|---|---|
| Net profit, excluding one-offs | -$2M $32M profit a year ago |
| Uranium unit cost of sales | $72.17/lb +21% from a year ago |
| Full-year uranium unit cost outlook | Raised $3.25/lb middle of the range: $68.50/lb |
⚖️ Verdict: 🔴 Bearish
The story got worse because mining disruptions are now eating into the gains from higher uranium prices. Price caps on older contracts limited Cameco's realized price growth, so the company now loses underlying profit when spot prices rise because its purchase costs go up faster. On the positive side, Westinghouse's reactor pipeline advanced as Poland authorized component orders and South Korea outlined a financing framework for six US reactors.
The question now is whether Saskatchewan cost inflation is temporary maintenance friction or a permanent reset, and whether reactor frameworks turn into binding orders. Bulls point to the US$7.5 billion equipment advance expected under the Korean deal, while sceptics point to a second straight cost increase and a forthcoming McArthur River technical report that will revise life-of-mine costs. That technical report in December and year-end US reactor agreements will decide.
🐂 Bull Case
Government Reactor Deals Advance Westinghouse Pipeline
Cameco owns 49% of Westinghouse, which services operating nuclear plants and designs the AP1000 large reactor. Supporters view the 91-reactor pipeline as a major profit driver, while sceptics note that no project has reached a final investment decision and delays would leave only a slower service business. In the third quarter, Cameco's share of Westinghouse profit before interest, taxes, depreciation, and one-offs rose 15% to $143 million on higher fuel deliveries.
- US and South Korea framework: up to US$120 billion for eight US reactors, including six AP1000 units
- Expected advance payment: US$7.5 billion by year-end 2026 to buy AP1000 long-lead equipment
- Poland and Slovakia: Poland authorized component orders in October, and Slovakia started a US-funded design study
These steps matter because early equipment orders bring revenue forward before construction begins, while each two-reactor project carries US$8 billion to US$11 billion of value for Westinghouse at a 20% margin target.
What to watch: binding agreements with the US government and the US$7.5 billion advance payment by the fourth-quarter report in February. Securing the cash would confirm that reactor orders are turning into revenue.
Kazakhstan Shipments and Cigar Lake Stake Aid Supply
Cameco relies on its northern Saskatchewan mines and its 40% stake in JV Inkai, a uranium venture in Kazakhstan, to supply its customer contracts without buying expensive material on the open market. In July, the miner and its partner bought Tokyo Electric Power's 5% stake in the Cigar Lake mine, lifting Cameco's ownership by 2.9 percentage points to 57.4% and adding a $26 million one-time purchase gain.
At JV Inkai, third-quarter output rose 17% from a year ago to 2.8 million pounds on a 100% basis. After the quarter ended, a shipment of 1.6 million pounds arrived in Canada, and the final 2026 shipment of about 1.8 million pounds is now in transit. Receiving these pounds before year-end avoids extra market purchases at roughly $110 per pound and locks in next year's cash dividend from the venture.
What to watch: confirmation in the fourth-quarter report that the final JV Inkai shipment arrived at Blind River before year-end. A timely arrival would protect fourth-quarter unit costs and secure the 2027 dividend.
🐻 Bear Case
Mine Outages Push Up Uranium Unit Costs
Cameco's profit depends on mining its own low-cost uranium in Saskatchewan rather than buying fuel in the market. In the third quarter, chief executive Tim Gitzel said the company planned a longer maintenance shutdown at its Key Lake mill to "undertake projects that are intended to ensure flexibility and sustainable operations". That outage cut Key Lake's output in half and lowered total third-quarter production by 20% to 3.5 million pounds.
- Produced cash cost: $40.73 per pound, up 62% from a year ago
- Uranium unit cost of sales: $72.17 per pound, up 21% from a year ago
- Cost of products and services sold: up 7.2 percentage points of revenue, cutting gross margin by 8.0 points
- Full-year uranium unit cost outlook: raised for a second straight quarter to $67.00–70.00 per pound
Cameco raised its cost forecast to "reflect the narrowed production guidance and the effect of inflation on production costs" after trimming the top of its 2026 production plan by 1 million pounds. By our math, the new outlook points to fourth-quarter unit costs near $73.12 per pound, while an updated technical report for McArthur River due within 45 days will revise life-of-mine cost estimates.
What to watch: the McArthur River technical report due by mid-December. A large increase above the current $21.72 per pound life-of-mine cost estimate would show that higher mining costs are permanent.
Contract Price Caps Limit Spot Uranium Gains
"In our view, the fundamentals supporting nuclear energy remain stronger than ever," Gitzel said, noting that long-term industry uranium prices reached US$96.50 per pound. However, Cameco sells uranium under long-term contracts that include price ceilings, while it buys uranium from the market and from JV Inkai at prices tied to the current spot market.
Over the first nine months of 2026, the average US dollar spot price rose 22%, but Cameco's realized price in US dollars grew only 10% to US$66.64 per pound because contract ceilings capped the gains. Because its purchase costs rise faster than its capped sales prices, Cameco stated that a US$5 per pound increase in the spot price reduces full-year profit excluding one-offs by $7 million and cuts operating cash flow by $17 million. The miner also lowered its 2027–2030 price sensitivity table "reflecting a correction in the methodology used to calculate prices under one contract".
What to watch: the 2027 realized price sensitivity table in the fourth-quarter report. A higher realized price at the US$100 spot level would show that older capped contracts are finally rolling off.
Risks this quarter didn't answer
Five standing concerns around contracting, acid supply, taxes, currency, and Westinghouse's ownership structure remained unresolved this quarter.
- Long-term contract replacement: industry term contracting fell to 42 million pounds over nine months from 45 million a year ago; Cameco only updates its total contract book size at year-end.
- Kazakhstan sulfuric acid supply: partner Kazatomprom delayed its new acid plant from early 2027 to late 2027 or early 2028, and Russia restricted exports; 2027 Inkai output targets in February will test the impact.
- Westinghouse public listing and US government stake: the report gave no update on the potential share offering or when the US government's profit-sharing stake might vest.
- Canada Revenue Agency tax dispute: authorities still hold $559 million in cash and letters of credit plus $346 million in cash taxes paid for 2024–2026, with court dates still pending.
- Currency swings: the US dollar ended the quarter at 1.42 Canadian dollars against the 1.35 outlook assumption, moving both revenue and US-dollar purchase costs.
👓 Other Themes
Finance Chief Retirement and Laser Enrichment Deal
Cameco announced that finance chief Heidi Shockey will step down on January 1, 2027, and retire in March, with Leah Hipperson taking over as chief financial officer. Separately, the miner signed an exclusive agreement to market all future uranium produced by Global Laser Enrichment, a laser enrichment venture Cameco partly owns that targets initial commercial operations by 2030.
💲 Other KPIs
Operating cash flow fell 98% from $156 million a year ago and dropped from $131 million last quarter. Higher cash tax payments of $48 million and working capital outflows consumed almost all operating cash. Along with the Cigar Lake stake purchase, that shifted Cameco from $218 million of net cash at year-end to $137 million of net debt.
Stockpiles of uranium concentrate edged down from 8.7 million pounds in the second quarter and 9.7 million pounds at the end of 2025. The uranium producer delivered 5.6 million pounds to customers while mining 3.5 million pounds and buying 1.8 million pounds. Average inventory cost was $58.37 per pound, down from $61.85 at year-end.
Sales in the fuel conversion and fabrication division rose 4% from a year ago, reversing a 6% decline in the second quarter. Delivery volumes grew 16% to 2.2 million kilograms of uranium, which outweighed a 13% drop in average realized price caused by product mix. Profit before taxes in the division fell 24% to $13 million.
🔮 Guidance
Unchanged. The full-year plan points to $3,445 million at the middle of the range, or a 1% decline from 2025. By our math, that leaves $1,167 million for the fourth quarter, down 3% from a year ago. Management kept its 1.35 US-to-Canadian dollar exchange rate assumption even though the currency ended the quarter at 1.42.
Cut. The Saskatchewan miner trimmed the top of its range by 1 million pounds, lowering the middle of the range by 2.4% to 20.0 million pounds, or 5% below 2025 output. The reduction comes from McArthur River and Key Lake, now set for 10.0–10.5 million pounds instead of 10.0–11.5 million. By our math, the plan leaves 6.4 million pounds for the fourth quarter, up 7% from a year ago.
Cut. Cameco narrowed the range, bringing the middle down by 0.5 million pounds to 30.0 million pounds, or 9% below 2025 deliveries. After delivering 20.5 million pounds in the first nine months, the plan leaves 9.5 million pounds for the fourth quarter by our math, down 15% from 11.2 million pounds in the fourth quarter of 2025.
Unchanged. The middle of the range stays at $2,805 million, down 2.4% from 2025. By our math, that leaves $917 million for the fourth quarter, down 11% from a year ago because of lower planned delivery volumes.
Unchanged. Following a $7.50 per pound increase at the middle of the range last quarter, the nuclear fuel supplier kept its price target steady at $93.50 per pound, up 7.5% from $87.00 in 2025. Nine-month realized prices averaged $92.05 per pound, based on a US$89.50 spot price assumption for remaining deliveries.
Raised. Management lifted the middle of its unit cost range by $3.25 per pound, or 5%, after raising it by $2.00 last quarter. Lower output at Key Lake and inflation drove the increase, and the plan assumes $110 per pound for remaining 2026 purchases. By our math, that leaves fourth-quarter unit costs near $73.12 per pound.
Unchanged. The ceiling for discretionary spot market purchases stays at 3 million pounds, depending on mine output and inventory choices.
Unchanged. Contracted purchases, including Cameco's 4.2 million pound allocation from JV Inkai, remain at 8 million pounds. Having bought 4.9 million pounds in the first nine months, the group has 3.1 million pounds left to receive in the fourth quarter.
Unchanged. Annual output across conversion and fuel bundles stays at 13.5 million kilograms at the middle of the range, down 3.6% from 14.0 million in 2025. That leaves 4.0 million kilograms for the fourth quarter after 9.5 million in the first nine months.
Unchanged. The middle of the range calls for 13.5 million kilograms of deliveries, up 3% from 13.1 million in 2025, leaving 4.9 million kilograms for the fourth quarter by our math.
Unchanged. The plan points to $630 million at the middle of the range, up 12% from $562 million in 2025. By our math, that leaves $249 million for the fourth quarter, up 43% from $174 million a year ago.
Unchanged. After a $2.15 per kilogram increase last quarter, the unit cost plan stays at $34.65 at the middle of the range, in line with $34.25 across the first nine months.
Raised. Overhead before share-based pay moved up by $17.5 million at the middle of the range to $270 million due to "increased spend on strategic initiatives related to non-recurring expenses". After $201 million in the first nine months, that leaves $69 million for the fourth quarter by our math.
Unchanged. Uranium exploration spending stays at $32.5 million at the middle of the range, with $28 million already spent in the first nine months.
Unchanged. Planned spending, mostly for Global Laser Enrichment, stays at $52.5 million at the middle of the range after $36 million in the first nine months.
Cut. Cameco lowered its capital spending plan by $50 million across both uranium ($355–385 million) and fuel services ($85–100 million), citing the "timing of certain mine development activities at our northern operations" and work deferred into later years. After $322 million in the first nine months, that leaves $143 million for the fourth quarter by our math.
Unchanged. Cameco's 49% share of Westinghouse operating profit stays at US$400 million at the middle of the range, assuming work advances on at least one new US reactor project this year. Westinghouse capital spending also stays at US$160–200 million for Cameco's share.
❓ Key Questions
What will the new McArthur River report do to costs?
Cameco will file an updated technical report for McArthur River within 45 days that revises its $21.72 per pound life-of-mine cost estimate. After produced cash costs rose 62% this quarter, investors need to know how much of the cost increase is permanent.
Which contract required the 2027–2030 price table cut?
Management lowered its expected realized uranium prices in the higher spot price columns for 2027 through 2030 due to a calculation correction on one contract. How many pounds does that contract cover, and what is its ceiling price?
Will the US-Korea reactor advance arrive by year-end?
The non-binding US and South Korea framework anticipates a US$10 billion advance payment by the end of 2026, including US$7.5 billion for AP1000 equipment. Is the full-year Westinghouse profit outlook dependent on signing that binding deal before December 31?
Did the deferred mine development affect 2027 production?
Cameco cut 2026 capital spending by $50 million in part because of the timing of northern mine development activities, while the Key Lake shutdown carried into the fourth quarter. Will those deferred projects limit McArthur River output in 2027?