Best Nuclear ETFs

Nuclear power is getting renewed attention for a specific reason: the AI buildout. Data centers need enormous, steady, carbon-free electricity, and nuclear is one of the few sources that can supply round-the-clock baseload power at scale. That has pushed tech companies and governments toward reactor restarts, plant life extensions, and a wave of small modular reactor (SMR) projects. Layer in broader decarbonization goals and energy-security concerns, and the bull case is that nuclear demand grows structurally over the coming decade. That is a thesis, not a certainty.

What matters just as much is that nuclear is a slow, capital-intensive, politically sensitive industry. Reactor projects take years and face regulatory, financing, and public-opinion risk, and uranium itself has gone through dramatic boom-and-bust cycles. The theme has had a strong run recently, which draws attention, but past performance is not a forecast. Anyone holding nuclear or uranium funds should expect real volatility, especially in the miner funds, and size it accordingly. None of this is a prediction about where these prices go next.

The steadier way to get nuclear exposure in a fund is through broad nuclear ETFs, which hold the whole value chain rather than just miners. NLR (VanEck Uranium and Nuclear) holds a mix of reactor operators, utilities that run nuclear plants, equipment and fuel-cycle companies, and some uranium names, at an expense ratio of around 0.61%. Because it includes utilities and operators, its holdings tend to be less volatile than pure uranium miners, and the utility exposure can add some dividend income.

NUKZ (Range Nuclear Renaissance) is a newer broad option built around the reactor-revival theme. It holds a spread of nuclear-focused companies including reactor developers, established utilities, equipment makers, and small modular reactor names, at an expense ratio of around 0.85%. Both NLR and NUKZ are diversified bets on nuclear power as an industry rather than concentrated commodity plays, so they generally move less sharply than the uranium miner funds while still expressing the nuclear thesis. This is descriptive, not a recommendation.

For a sharper bet on the fuel behind nuclear power, uranium miner funds hold uranium mining companies rather than utilities and operators. URA (Global X Uranium) holds a basket of uranium miners plus some nuclear- component and fuel-cycle companies, at an expense ratio of around 0.69%, and it is the largest and most liquid uranium fund. URNM (Sprott Uranium Miners) is more concentrated and pure-play, weighted toward the largest uranium producers and physical uranium exposure, at around 0.75%.

The trade-off is volatility. Uranium miners are leveraged to the uranium price (their costs are roughly fixed while revenue moves with uranium), so miner funds tend to climb more than the broad nuclear funds when uranium rises and fall more when it drops. URNM is generally the sharper, more concentrated uranium bet, while URA is a slightly broader take on the same theme. Both carry more commodity and company risk than NLR or NUKZ, and both can swing hard in a downturn even if the long-term nuclear story holds.

Fees here are close enough that they are rarely the deciding factor. NLR is one of the cheaper broad options at around 0.61%, URA sits near 0.69%, URNM around 0.75%, and NUKZ around 0.85%. What actually separates these funds is what they hold: NLR and NUKZ spread across reactors, utilities, and equipment, while URA and URNM concentrate on uranium miners. The higher fee on a broad, actively themed fund buys a different mix, not necessarily a better one.

Because the holdings differ so much, cost should be weighed against exposure rather than in isolation. A cheaper fund that owns the wrong slice of the theme for your goals is not really cheaper. Over long holding periods a lower fee does compound in your favor, but only among funds you would otherwise consider interchangeable, and the broad nuclear funds and uranium miner funds are not interchangeable. This is descriptive, not a recommendation about which fee is worth paying.

Costs are approximate expense ratios as of mid-2026; verify the current figure on each issuer's site. The first two hold the broad nuclear industry (reactor operators, utilities, and equipment), with NLR the cheaper, steadier option and NUKZ built around the reactor-renaissance and SMR theme. The last two are uranium miner funds that behave more like a volatile commodity play, with URA the largest and most liquid and URNM the more concentrated pure-play. For the broader themes behind these funds, you can explore the nuclear and SMR theme and the uranium theme.

A broad nuclear ETF is a diversified bet on the whole industry, while a uranium miner fund concentrates on one commodity. Some investors prefer to hold individual reactor operators, utilities, or SMR developers directly instead of a fund, to control exactly which names they own. If that is the angle, our guide to the best nuclear stocks walks through the individual companies across the value chain.

Others want to isolate the uranium side of the trade specifically, rather than the broad nuclear industry. If the fuel itself is the focus, our guide to the best uranium ETFs goes deeper on URA, URNM, and the physical uranium options. Which approach fits depends on how strongly you hold the nuclear thesis and how much volatility you are willing to carry. Neither is better in the abstract; they are different levels of concentration. Walnut is not an investment adviser, and this is descriptive, not a recommendation.

The hard part of nuclear is not picking the fund; among the broad funds, NLR and NUKZ express a similar theme with different mixes, and among the miner funds, URA and URNM are both bets on uranium with different concentration. The harder question is whether a concentrated, volatile industry belongs in your portfolio at all, how large a slice makes sense, and whether you want the steadier broad funds or the sharper uranium miners. That depends on what you already own and what you are trying to do, which is where an AI assistant that can reason over your real holdings helps.

That is where Walnut fits. It connects your existing brokerage so you can ask, in plain language through Claude, ChatGPT, or a built-in assistant, how a nuclear ETF would fit what you already hold, how much a position like NLR or URA moves with the rest of your portfolio, and how the broad nuclear funds versus the uranium miners are doing against the market. Walnut keeps your accounts read-only, so a nuclear position is only ever added when you place that order. As something that informs rather than advises, it sizes the question of a nuclear sleeve against your real holdings instead of recommending one, because Walnut is not an investment adviser.

Nuclear ETFs split into two jobs. For broad exposure to the nuclear industry, NLR (VanEck Uranium and Nuclear, around 0.61%) and NUKZ (Range Nuclear Renaissance, around 0.85%) hold reactor operators and utilities alongside uranium names, so they tend to be steadier and NLR carries some utility dividend income. For a sharper bet on the fuel, URA (Global X Uranium, around 0.69%) and URNM (Sprott Uranium Miners, around 0.75%) hold uranium miners that move much more than the broad funds and carry more commodity and company risk.

Whichever route, the honest framing is the same: nuclear is a slow, capital-intensive industry and uranium is a cyclical, volatile commodity, so even a strong reactor-revival and AI-power-demand thesis does not protect against sharp drops, which is why nuclear is usually sized as a small, thematic slice. From a connected account you can dig into any of these as an ETF, or compare nuclear against the rest of your portfolio. Holdings, fees, and availability change; treat the specifics here as a starting point and confirm on each provider's site before deciding. For the full category map, see our best ETF in every category guide.