Cameco (CCJ): what it does, how it makes money, and why it is more than a uranium miner

The standard $CCJ story is simple: Cameco is the uranium price with a ticker. Uranium goes up, Cameco goes up. The tape agrees. Over the last 252 trading days, with market beta stripped out, CCJ's tightest correlations in the QA universe are NexGen Energy ($NXE, 0.85) and Denison Mines ($DNN, 0.83), two developers with no producing mine between them.

The business underneath is a different animal. Cameco sells most of its uranium through long-term contracts, not at spot. It also processes uranium into fuel, and it owns 49% of Westinghouse, the company that designs, services and builds reactors. So the stock trades like an exploration basket while the company earns like a contracted fuel supplier with a reactor business attached. This piece walks through what Cameco does, how it makes money, where it sits in the nuclear chain, and the gap between the story and the tape. Figures are as of 2026-09-25 unless noted.

Why it matters now

CCJ closed at $88.07 on 2026-09-25: down 17.2% over one month, 14.9% over three months, and about 35% below its 52-week high of $135.24. That drawdown landed after the October 2025 announcement of a US government partnership to build Westinghouse AP1000 reactors, worth at least $80 billion. A name with that much new-build optionality falling with the junior miners is exactly the kind of gap worth reading carefully.

What does Cameco do?

Cameco, headquartered in Saskatoon, Canada, and listed in Toronto and on the NYSE, works across three links of the nuclear fuel chain.

• Uranium mining. Cameco operates McArthur River and Cigar Lake in northern Saskatchewan. McArthur River is the world's largest high-grade uranium mine, its ore is milled at Key Lake, the world's largest uranium mill, and Cigar Lake is the world's second-largest high-grade deposit. In Kazakhstan it holds 40% of the Inkai joint venture with the state miner Kazatomprom, which holds the other 60%.
• Fuel services. Mined uranium has to be refined and converted before it can be enriched and made into fuel. Cameco's fuel services segment does that processing, plus fuel manufacturing, in Ontario.
• Westinghouse (49%). Acquired with Brookfield in a deal that closed in 2023. Westinghouse services a large share of the world's operating reactors, makes fuel assemblies, and owns the AP1000 reactor design.

Most miners stop at the first bullet. Cameco touches the fuel from the ground to the reactor's maintenance contract, which is why "uranium price proxy" undersells it.

How Cameco makes money

Uranium sales under long-term contracts. Utilities buy fuel years ahead, and Cameco's book is built from multi-year contracts, a mix of fixed-escalating and market-related pricing. The company says it is deliberately selective about committing its uncontracted inventory: it wants exposure to higher future prices while keeping downside protection. The practical consequence is that a spot price swing reaches Cameco's revenue slowly and partially, in both directions.

Fuel services. Conversion and fuel manufacturing are sold on contract too. Smaller than uranium, steadier, and tied to the same Western supply-security push that followed Russia's invasion of Ukraine.

Westinghouse, through equity earnings. Cameco books its share of Westinghouse's results rather than consolidating the revenue. Servicing the installed reactor fleet is the steady core. New builds are the swing factor: participation in the two-reactor Dukovany project in the Czech Republic lifted Cameco's share of Westinghouse revenue in 2025, while Cameco's share of Westinghouse swung to a net loss of $10 million in the second quarter of 2026 and $56 million over the first half, against earnings a year earlier (Cameco reports in Canadian dollars). New-build economics are lumpy, and they show up in this line first.

Put together, QA's data puts trailing revenue at about $2.5 billion with a 10.2% profit margin. The uranium segment carried 2025: Cameco's full-year adjusted EBITDA rose by roughly C$398 million to C$1.9 billion, mainly from uranium, on an improving price environment.

Where it sits in the nuclear bubble

Cameco sits in QA's Nuclear / SMR bubble, weighted as its uranium major.

The cleanest way to place it is by position in the fuel chain. Miners like Cameco dig uranium. Enrichers like Centrus ($LEU) raise its U-235 content into reactor fuel. Reactor developers like Oklo ($OKLO) and NuScale ($SMR) build the machines that burn it, and fleet operators like Vistra sell the power. Through Westinghouse, Cameco also sits in the reactor-design link, next to the developers.

The correlations say the market mostly ignores that second seat. After NXE and DNN come Uranium Energy ($UEC, 0.78) and Energy Fuels ($UUUU, 0.71), then NuScale and Centrus at 0.61. $CCJ trades with the uranium price complex first and the reactor story a distant second. The full peer table is on /stocks/ccj, next to the desk's uranium explainer video.

The numbers

A trailing P/E above 150 on a 10% margin says the price is paying for contracts not yet repriced and reactors not yet built, not for current earnings. The Street mean target is an average of analyst opinions, not a QA view and not a promise.

The bull case

• The contract book reprices over time: long-term uranium prices strengthened through the first half of 2026, per Cameco, as utilities contracted for security of supply.
• Tier-one assets in a stable jurisdiction, at a moment when Western utilities are reducing exposure to Russian nuclear fuel.
• Westinghouse gives the only large-cap, listed route to AP1000 new-build economics, including the US partnership worth at least $80 billion.
• Datacenter power demand keeps adding reasons to extend the lives of existing reactors and to build new ones, which pulls on fuel and servicing alike.

The bear case

• The valuation already prices a lot: 154x trailing earnings and 11x sales.
• Westinghouse is swinging to losses as new-build work ramps. Large reactor projects have a long history of cost overruns, and Cameco carries 49% of that risk.
• Operational concentration. A handful of mines and one Kazakh joint venture: Inkai production was suspended by Kazatomprom for three weeks in January 2025, and spring road conditions in northern Saskatchewan hit 2026 production.
• The tape treats CCJ as a junior-miner basket, so a uranium sentiment reversal hits it regardless of the contract book.

How to access

Cameco trades on the NYSE as CCJ and in Toronto as CCO. It is also the largest single holding of the Global X Uranium ETF ($URA), at roughly 22% of the fund in recent holdings data, so a URA owner already carries a large CCJ position. To trade it from a US-retail account alongside the other nuclear names, see /stack/ibkr.

For the whole chain in one document, from miners to enrichers to reactor developers, the desk's Uranium Report is in the shop and included in Pro. Bubble-correlation shifts and rule-based alerts on $CCJ are part of /pro.

What to watch

• Cameco's third-quarter results, and whether the long-term contract book keeps repricing higher.
• Westinghouse: the first final investment decisions under the US partnership, and whether its losses narrow as projects move from engineering to construction.
• Production at McArthur River, Cigar Lake and Inkai against the annual outlook Cameco held unchanged in July.
• The correlation with NXE and DNN. If CCJ starts trading with the reactor names instead of the explorers, the market has started pricing Westinghouse.
• Price levels: the close sits just under the auto-computed 0.786 retracement of the 52-week range ($90.01), with the 52-week low at $77.70 below. These are observable reference levels, not trade levels or targets.

Live data on this ticker: /stocks/ccj. Price, peer correlations, levels and the desk's uranium explainer video.

Bubble context: /bubbles/nuclear-smr. The cluster this name belongs to and how it's moving.

QuantAbundance is educational research. Nothing here is investment advice. See /disclosures.