CCJ vs UUUU: How Cameco and Energy Fuels Compare (2026)

Same yardstick, side by side (as of August 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: UUUU is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. CCJ and UUUU share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined CCJ and UUUU exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Cameco (CCJ) is one of the world's largest publicly traded uranium producers and a major supplier of nuclear fuel. Based in Saskatchewan, Canada, it mines uranium from some of the highest-grade deposits in the world, including the Cigar Lake and McArthur River operations, and sells uranium concentrate (U3O8) to utilities that run nuclear power plants. Beyond mining, Cameco participates across the nuclear fuel cycle through refining, conversion, and fuel-fabrication activities, and it holds a significant interest in Westinghouse, a leading provider of nuclear reactor technology and services, acquired alongside Brookfield. Cameco's revenue is tied to long-term contracts with utilities and to uranium spot and contract prices, which are driven by global nuclear power demand, supply discipline, and the broader case for clean, baseload electricity. It trades on the New York Stock Exchange and the Toronto Stock Exchange.

Full CCJ guide

Energy Fuels (UUUU) is a US-based diversified critical-minerals company best known as a leading domestic uranium producer, operating the White Mesa Mill in Utah, the only conventional uranium mill operating in the United States. Beyond uranium for nuclear fuel, Energy Fuels has expanded into rare earth elements, producing separated rare-earth oxides used in magnets for electric vehicles, wind turbines, and defense applications, and it also recovers vanadium and processes monazite sands. The company's pitch is that its White Mesa Mill is a unique permitted hub for processing both uranium and rare earths, positioning it as a strategic domestic supplier of critical minerals. Energy Fuels does not pay a dividend and is largely pre-scale on its rare-earth ambitions. Headquartered in Lakewood, Colorado, UUUU is a speculative, commodity-and-policy-driven equity rather than a steady-cash producer.

Full UUUU guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• CCJ drivers: Nuclear demand and the clean-energy case; Uranium supply discipline and pricing.
• UUUU drivers: Unique White Mesa Mill; Rare-earth and critical-minerals tailwind.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Cameco's results are tied to volatile uranium prices and to global nuclear power sentiment, which can swing on policy and on high-profile events. For UUUU, energy Fuels is speculative and largely pre-scale.

Pick CCJ if you believe its drivers more; UUUU if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the CCJ and UUUU guides.

CCJ. Cameco often trades on a high or volatile price-to-earnings multiple because its earnings swing with uranium prices and reflect the Westinghouse investment. Investors typically value it on the long-term uranium demand and supply outlook and on its contracted sales book rather than on a single year of earnings. All figures are approximate and move with uranium prices and the share price; verify current numbers before relying on them.

UUUU. Energy Fuels is valued mostly on its mineral resources, the strategic value of the White Mesa Mill, and optionality in uranium and rare earths rather than on stable current earnings, so P/E and yield are not the right lens. The stock is highly volatile and reacts strongly to uranium prices, rare-earth news, and US policy headlines. All figures are approximate and should be verified against current filings.

Headline figures (approximate, early 2026): CCJ shows revenue (ttm) ~$2-3 billion (approximate, verify), primary product Uranium concentrate (U3O8), key assets Cigar Lake, McArthur River; ~49% Westinghouse stake (verify), p/e (ttm) Elevated and volatile (commodity earnings; approximate, verify); UUUU shows business stage Uranium producer plus early-stage rare earths (verify current output), key asset White Mesa Mill, Utah (only operating US conventional uranium mill), products Uranium, rare-earth oxides, vanadium, revenue (ttm) ~modest and variable, tied to mineral sales (verify).

CCJ and UUUU are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined CCJ and UUUU exposure against your real portfolio. It is not an investment adviser.