The nuclear and uranium ETFs least like the S&P 500
See 10 funds ranked by the share of the fund by weight that is held in S&P 500 companies. Updated Oct 20, 2026. Every fund here is sold on nuclear and uranium, and they differ in how much of the index they hand you back. The one at the top is the one adding the most that is new.
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Ask IQ about the nuclear and uranium ETFs least like the S&P 500Answers cite the figures on this page.
| # | Ticker | Fund | Weight in S&P 500 companies ↑ | Active share | Net assets | Fee |
|---|---|---|---|---|---|---|
| 1 | URA | Global X Uranium ETF | 0.0% | 100.0% | $5.4bn | 0.69% |
| 2 | URNJ | Sprott Junior Uranium Miners ETF | 0.0% | 100.0% | $288m | 0.80% |
| 3 | URNM | Sprott Uranium Miners ETF | 0.0% | 100.0% | $1.7bn | 0.75% |
| 4 | UX | Roundhill Uranium ETF | 0.0% | 100.0% | $4m | 0.77% |
| 5 | NLR | VanEck Uranium and Nuclear ETF | 15.1% | 99.8% | $3.2bn | 0.52% |
| 6 | TNUK | Tortoise Nuclear Renaissance ETF | 17.4% | 99.2% | $2m | 0.75% |
| 7 | NUKZ | Range Nuclear Renaissance Index ETF | 23.0% | 98.7% | $890m | 0.85% |
| 8 | URAN | Themes Uranium & Nuclear ETF | 24.1% | 99.5% | $28m | 0.35% |
| 9 | SMRF | ALPS Nautilus SMR, Nuclear & Technology | 27.8% | 92.5% | $11m | 0.65% |
| 10 | RCTR | First Trust Bloomberg Nuclear Power ETF | 30.2% | 98.9% | $29m | 0.70% |
Method
The 10 of 10 ETFs in the nuclear and uranium theme with a filed book, least overlap first, each measured against the S&P 500 holdings ETFIQ reads for the same date.
The rest of the method
Across the funds listed here the weight held in S&P 500 companies runs from 0.0% to 30.2%. A thematic fund is worth its fee only for the part of it you do not already own. The list sorts one published figure, with no scoring or weighting. Every fund ETFIQ covers in this category is eligible, closed funds included.
ETFIQ links to the documents behind every figure; a link is not an endorsement. A ranking is not a recommendation or an opinion.
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ETFIQ, The nuclear and uranium ETFs least like the S&P 500, ranked by the share of the fund by weight that is held in S&P 500 companies, data as of Oct 20, 2026. https://etfiq.com/rankings/themes-off-index-nuclear
ETFIQ. (Oct 20, 2026). The nuclear and uranium ETFs least like the S&P 500, ranked by the share of the fund by weight that is held in S&P 500 companies. Retrieved from https://etfiq.com/rankings/themes-off-index-nuclear
[The nuclear and uranium ETFs least like the S&P 500, ranked by the share of the fund by weight that is held in S&P 500 companies (ETFIQ, Oct 20, 2026)](https://etfiq.com/rankings/themes-off-index-nuclear)
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