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A nuclear energy ETF can hold uranium miners, physical uranium, nuclear-industry suppliers, or electricity producers; the label does not tell you which exposure you are buying. There is no universal “best” fund among the examples here: URNM is the most direct fit for uranium-mining and physical-uranium exposure, URA combines uranium companies with nuclear components, and NLR and the iShares UCITS fund cover a wider nuclear-energy field. Compare each fund’s mandate, holdings, costs, trading conditions, structure, and local availability before investing.
The figures below come from issuer materials and have different as-of dates. They are a starting point for comparison, not a complete screen of every available fund or personalized investment advice.
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These are examples of different approaches, not an overall performance ranking. “Best for” describes the kind of exposure each mandate is designed to provide.
| Name | Best for | Key spec | Price / expense ratio | Checked |
|---|---|---|---|---|
| Sprott Uranium Miners ETF (URNM) | Uranium miners and some physical uranium | 26 issuers; 80.43% uranium-related equities and 19.57% physical uranium as of September 30, 2026 | 0.75% total annual operating expenses | November 2026 |
| Global X Uranium ETF (URA) | Uranium companies plus nuclear components | 60 holdings; Cameco was 22.35% of assets as of November 12, 2026 | 0.69% total expense ratio | November 2026 |
| VanEck Uranium and Nuclear ETF (NLR) | A wider mix including mining, nuclear power and industry services | Index includes miners, facility and reactor work, power production, equipment, technology and services | 0.52% net expense ratio; fee limitation expected through at least May 1, 2027, subject to Board action | November 2026 |
| iShares Nuclear Energy and Uranium Mining UCITS ETF, USD accumulating class | Investors seeking an Irish-domiciled UCITS fund with a screened global nuclear and uranium basket | 45 holdings; Irish domicile; launched June 26, 2025 | 0.50% total expense ratio | November 2026 |
Issuer-reported fees and portfolio figures are dated and can change. The UCITS entry is a specific USD accumulating share class; it is not interchangeable with every listing or share class of a fund.
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What does “nuclear energy ETF” actually mean?
It can describe funds with substantially different holdings. A fund may concentrate on uranium miners and physical uranium, own companies involved in nuclear components, or include utilities and businesses that build, maintain, equip, or service nuclear facilities. Check the fund’s index and holdings rather than inferring its exposure from its name.
The distinction matters because an ETF is not a direct substitute for uranium, a nuclear power plant, or a utility. Even a fund that owns physical uranium alongside shares can have returns shaped by equity markets, company-specific risks, the fund’s index rules, and the price and valuation of its other holdings. Likewise, a broad nuclear-energy fund may include companies whose businesses extend beyond nuclear power.
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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11The four examples illustrate the range. URNM seeks to invest at least 80% of assets in the VettaFi Global Uranium Mining Index; the index can include qualifying uranium miners and may include physical uranium, royalties, and supporting businesses. URA tracks the Solactive Global Uranium & Nuclear Components Total Return Index, with issuer-described exposure to uranium extraction, refining and exploration as well as nuclear-industry components. NLR’s index reaches beyond mining to power generation and nuclear facilities, equipment, technology and services. The iShares UCITS fund tracks the STOXX Global Nuclear Energy and Uranium Mining Index.
Which fund matches the exposure I want?
Start with what you mean by “nuclear energy.” If your thesis is primarily about uranium miners and uranium-related assets, URNM is the most explicitly mining-focused example here. If you want uranium exposure alongside companies making nuclear components, URA is a different fit. NLR offers a broader nuclear-industry mix that includes electricity producers and services. The iShares UCITS fund is another global nuclear-and-uranium basket, but its structure and share class are especially important to check.
- Uranium miners and physical uranium: URNM reported 80.43% uranium-related equities and 19.57% physical uranium as of September 30, 2026. Those are portfolio weights at a particular date, not a promise that the allocation will remain fixed.
- Uranium extraction and nuclear components: URA’s mandate covers uranium-related businesses and nuclear components. Global X reported 60 holdings as of November 12, 2026, but the number of holdings does not by itself show how concentrated the fund is.
- Wider nuclear-energy value chain: NLR’s index includes companies involved in uranium mining, nuclear facility or reactor construction, engineering and maintenance, nuclear electricity production, and nuclear-industry equipment, technology and services.
- UCITS structure: The iShares example is an Irish-domiciled UCITS fund, with the cited facts applying to its USD accumulating share class. Confirm that the particular listing and share class are accessible to you.
Mandates are not guarantees of a precise exposure. Before buying, open the issuer’s current holdings file and identify what the largest positions actually do, where they are based, and how much of the portfolio is tied to uranium, nuclear power, or adjacent businesses. A thematic label can conceal a concentrated portfolio or holdings that only partly match your investment idea.
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How concentrated are these funds?
Holdings and position weights help reveal risks that a fund name or holdings count can hide. For example, Global X reported 60 URA holdings but a 22.35% weight in Cameco as of November 12, 2026. That means one company made up more than one-fifth of the reported portfolio at that date; the rest of the holdings count does not make that largest-position exposure disappear.
URNM’s September 2026 fact sheet reported 26 issuers and split its portfolio between uranium-related equities (80.43%) and physical uranium (19.57%) as of September 30. The issuer count is not directly comparable with URA’s holdings count: different funds may count positions, issuers, or asset types differently, and a physical holding is not an operating company. NLR and the iShares fund have broader stated mandates, but the mandate alone does not establish their current country, company, or sector weights.
Review at least the top holdings, the largest position’s weight, country exposure, and the breakdown between direct uranium-related assets and other businesses. Also check how frequently the issuer updates those details. The figures above are snapshots; portfolios and index constituents can change.
What do the fees cost, and what is not included?
Among these examples, stated ongoing expenses range from 0.50% to 0.75%, but fee labels and arrangements are not automatically like-for-like. URA listed a 0.69% total expense ratio as of November 12, 2026. NLR listed a 0.52% net expense ratio when VanEck’s page was accessed November 13, 2026; the issuer said its expense limitation was expected to remain in place until at least May 1, 2027, subject to Board action. URNM’s September 2026 fact sheet listed 0.75% total annual operating expenses. The iShares USD accumulating UCITS share class listed a 0.50% total expense ratio in its October 2026 fact sheet.
As a simple illustration, a 0.50% annual expense ratio corresponds to about $50 in fund expenses per year for a $10,000 investment, and 0.75% corresponds to about $75, assuming the investment value stays at $10,000. This is arithmetic based on the stated ratios, not a forecast of actual charges or returns. The fund’s value changes, and the calculation excludes brokerage commissions, bid-ask spreads, taxes, currency conversion and any other investor-specific costs.
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Check whether a published ratio is gross or net, whether a fee waiver or expense cap applies, and when it might end. NLR’s stated limitation is time-bound and subject to Board action; do not assume the current net figure will remain in force indefinitely. Fees can also be updated, so confirm the latest issuer page and prospectus before investing.
Why do spreads and trading conditions matter?
The expense ratio is an ongoing fund-level cost; the bid-ask spread is a trading cost when you buy or sell. Liquidity, trading volume, and the difference between market price and net asset value can also affect the price you receive. A low expense ratio does not ensure a low all-in cost.
Global X reported URA’s 30-day median bid-ask spread at 0.03% as of November 12, 2026. That is one fund’s issuer-reported figure at a dated snapshot, not a basis for assuming similar spreads for the other funds. Check the current spread, trading activity, and premium or discount information for the specific listing you plan to trade.
When placing an order, consider a limit order if you want to set the highest price you are willing to pay or the lowest price you are willing to accept. A limit order may not execute, particularly if the market does not reach your limit. Avoid assuming that a quoted spread or price will be the same at every time of day or for every exchange listing.
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What risks should I weigh before buying?
These are thematic investments, not low-risk ways to hold a diversified market portfolio. Their shares can fall sharply, and exposure to uranium or nuclear power does not guarantee a particular result for uranium prices, electricity demand, or the nuclear industry.
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- Equity and company risk: Miners, component makers, utilities and service providers are businesses with their own financial and operating risks. A fund can decline even if the broad investment theme remains in the news.
- Commodity and sector risk: Uranium prices and nuclear-industry conditions can influence some holdings, but an ETF’s return is not necessarily the same as the spot uranium price or the performance of nuclear electricity generation.
- Concentration risk: A fund can have a large position in one company or meaningful exposure to a small number of related businesses. URA’s reported 22.35% Cameco weight on November 12, 2026, is a dated example.
- Geographic and currency risk: Holdings, listing currency, fund currency and the currency you use to invest may differ. Exchange-rate movements and local-market exposure can affect results.
- Index and mandate risk: Index rules determine what qualifies for inclusion and when constituents change. A fund may own adjacent businesses, or its portfolio mix may shift as index rules and holdings change.
- Trading and valuation risk: Spreads and premiums or discounts can add to costs or affect execution, particularly when trading conditions are less favorable.
Historical performance is not a reliable forecast. As of November 12, 2026, Global X reported URA’s one-year NAV return at -35.60%. That is a backward-looking issuer-reported return for a stated period, not a prediction. The cited materials also display a one-year figure for NLR without a clearly identified as-of date, so it is not useful for a clean, dated comparison here.
Does the fund’s country, share class, or tax treatment matter?
Yes. A fund’s domicile, listing, share class, currency, and accumulation or distribution policy can affect whether you can buy it and how it fits your account. Availability and tax treatment depend on your location and circumstances; the issuer fact sheets do not determine your individual tax outcome.
The iShares example cited here is an Irish-domiciled UCITS fund and specifically a USD accumulating share class. Its fact sheet says the fund and share class launched June 26, 2025, and reports 45 holdings. An accumulating share class reinvests income within the fund rather than paying it out as a regular distribution; confirm the precise terms in the current prospectus and share-class documents. The USD label should not be assumed to mean the fund’s underlying holdings or your own account are free of currency exposure.
Before placing an order, check the ticker and exchange listing, the exact share class, trading currency, domicile, distribution policy, broker access and relevant local tax rules. If tax treatment or product eligibility is unclear, consult a qualified local adviser. Do not compare a U.S.-listed fund and a UCITS share class as if their access, tax, or operational details were identical.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How can I compare funds before buying?
Use the same checklist for each candidate, and verify volatile details on current issuer materials rather than relying on an old comparison table.
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- Write down the exposure you want. Decide whether the goal is uranium miners, physical uranium as part of a portfolio, nuclear components, nuclear electricity producers, or a broader industry basket.
- Read the index and mandate. Find the index name and inclusion rules in the prospectus or fund page. Note whether the strategy includes physical assets, royalties, utilities, engineering or other services.
- Inspect current holdings. Compare the largest positions, position weights, number of issuers, countries and business types. Check the date of the holdings file and distinguish issuer counts from asset allocations.
- Compare ongoing expenses carefully. Record the current ratio, whether it is net or gross, and any fee cap or waiver and its end date. Treat a temporary net figure as potentially changeable.
- Check trading costs and market conditions. Review current bid-ask spread, volume and premium or discount information for the particular exchange listing. Consider how your order type affects execution.
- Confirm structure and access. Verify domicile, listing, exact share class, trading currency, accumulation or distribution policy, and whether your broker and local rules permit a purchase.
- Decide how much risk fits your plan. Consider whether a concentrated thematic fund belongs alongside broader investments rather than serving as a substitute for a diversified portfolio. Set your position size based on your own risk tolerance and time horizon.
- Recheck before trading. Fees, holdings, spreads and fund documents can change. Use the issuer’s latest page and prospectus; a dated factsheet is evidence of what was reported then, not a permanent specification.
How were these funds selected for comparison?
The four examples were selected to show distinct nuclear-related ETF exposures supported by issuer materials: uranium miners and physical uranium (URNM), uranium and nuclear components (URA), a wider nuclear-industry index (NLR), and an Irish-domiciled UCITS nuclear-and-uranium basket (iShares). This is not a complete market screen, a ranking by expected return, or a claim that these are the only suitable funds. The appropriate comparison depends on the investor’s location and the exposure sought.
Frequently Asked Questions
Does a uranium ETF track the spot price of uranium?
Not necessarily. A fund that owns mining-company shares can move with company finances, equity markets, and other business risks as well as uranium-related conditions; a portfolio that includes physical uranium still may not match spot-price movements exactly.
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Can I buy a UCITS nuclear ETF from the United States?
Access depends on the fund’s listing, your broker, and applicable rules, and cannot be assumed from the UCITS label alone. Check the broker’s available listings and the fund documents for the exact share class before making a decision.
What does an accumulating ETF share class do?
An accumulating share class generally retains and reinvests income within the fund rather than distributing it to investors. Confirm the precise policy in that share class’s current documents, since tax reporting and treatment depend on your jurisdiction.
Are nuclear energy ETFs suitable as a complete portfolio?
A thematic fund concentrates on a narrower set of industries and may carry company, sector, commodity, country, and currency risks. Whether it belongs in a portfolio—and at what size—depends on the investor’s overall diversification, goals, and tolerance for losses.
