Do TNUK and URNJ hold the same stocks?

By their latest filings, 3% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.

Which is more different from the S&P 500, TNUK or URNJ?

TNUK has 18% of its weight in S&P 500 names and URNJ has 0%, so URNJ differs more from the index.

Which is cheaper, TNUK or URNJ?

TNUK charges 0.85% a year and URNJ charges 0.80%, so URNJ is cheaper. Fees come from each fund's prospectus.

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TNUK vs URNJ: which is really different?

TNUK and URNJ hold 3% of their weight in the same names. Tortoise Nuclear Renaissance ETF and Sprott Junior Uranium Miners ETF.

17.5%

TNUK in the S&P 500

0.0%

URNJ in the S&P 500

−11.8%

TNUK total return, since launch

−25.9%

URNJ total return, 1 year

TNUK · 6 months to Sep 30, 202683% of its weight is outside the S&P 500

18% of TNUK's weight is in S&P 500 companies and 83% is outside the index

URNJ · 1 year to Sep 30, 2026100% of its weight is outside the S&P 500

0% of URNJ's weight is in S&P 500 companies and 100% is outside the index

ETFIQ Off-Index Score · URNJ scores higherHow much of it is not the index it is sold as an alternative to?

TNUK 66.3

URNJ 92

0.1, the lowest in this set92.0, the highest

A percentile among the 375 thematic ETFs with a holdings filing. It is a position in a set, not a rating, and neither end of it is a recommendation. All thematic ETFs ranked by it → How it is computed →

What they hold in common

By the books each fund has filed, TNUK and URNJ hold 3% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Jun 30, 2026 and May 31, 2026.

50%

half

3% in common

Positions both hold, largest shared weight first

Holding TNUK URNJ

NexGen Energy Ltd 1.29% 12.17%

Denison Mines Corp 1.09% 12.56%

Energy Fuels Inc/Canada 0.83% 11.37%

Only in TNUK

Curtiss-Wright Corp 8.15%

Cameco Corp 7.48%

Doosan Enerbility Co Ltd 6.94%

Talen Energy Corp 6.90%

BWX Technologies Inc 6.66%

Mirion Technologies Inc 6.22%

Rolls-Royce Holdings PLC 5.06%

Uranium Energy Corp 4.97%

Only in URNJ

Paladin Energy Ltd 11.29%

Deep Yellow Ltd 4.81%

Ur-energy Inc 4.75%

Isoenergy Ltd 4.69%

Cgn Mining Co Ltd 4.30%

Bannerman Energy Ltd 3.76%

Boss Energy Ltd 2.78%

Atha Energy Corp 2.76%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed.

3% of the two portfolios are the same securities at the same weight.

Performance, window by window

	Total return		vs the S&P 500		vs the Nasdaq-100
Window	TNUK	URNJ	TNUK	URNJ	TNUK	URNJ
3 months	−10.1%	−13.7%	−12.6 pts	−16.2 pts	−12.2 pts	−15.8 pts
6 months	−15.3%	−32.4%	−32.3 pts	−49.4 pts	−42.2 pts	−59.3 pts
1 year	not published	−25.9%	not published	−41.6 pts	not published	−49.7 pts
3 years	not published	−1.6%	not published	−86.6 pts	not published	−111.6 pts
Since launch TNUK Dec 2025 · URNJ Feb 2023	−11.8%	+13.7%	−25.7 pts	−78.2 pts	−33.8 pts	−128.7 pts

TNUK and URNJ over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

TNUK

Tortoise Nuclear Renaissance ETF · Holds 25 stocks in nuclear and uranium, 18% of its weight in S&P 500 companies

URNJ

Sprott Junior Uranium Miners ETF · Holds 41 stocks in nuclear and uranium, 0% of its weight in S&P 500 companies

Issuer Tortoise Sprott

Theme Nuclear and uranium Nuclear and uranium

In the S&P 500 17.5% 0.0%

Active share vs the S&P 500 99.2% 100.0%

In the Nasdaq-100 4.5% 0.0%

Holdings 25 41

Top ten, share of the fund 61.8% 72.5%

Expense ratio 0.85% 0.80%

Fee for the differing part 0.86% 0.80%

Total return, 1 year −11.8% (since launch on Dec 18, 2025) −25.9%

vs the S&P 500 −25.7 pts −41.6 pts

vs the Nasdaq-100 −33.8 pts −49.7 pts

Below its high −26.4% −50.1%

Net assets $2m $310m

TNUK and URNJ on the same fields, as of Sep 30, 2026. Source: ETFIQ.

TNUK in plain words

By weight, 18% of TNUK's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 99%. The top ten holdings are 62% of the fund across 25 positions, as filed for May 31, 2026. Since it launched on Dec 18, 2025 the fund returned −11.8% with distributions reinvested against +13.9% for the S&P 500, so a holder was behind by 25.7 pts. It sits 26.4% below its all-time high of Jan 28, 2026.

URNJ in plain words

By weight, 0% of URNJ's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 100%. The top ten holdings are 72% of the fund across 41 positions, as filed for Jun 30, 2026. Over the year to Sep 30, 2026 the fund returned −25.9% with distributions reinvested against +15.7% for the S&P 500, so a holder was behind by 41.6 pts. It sits 50.1% below its all-time high of Jan 28, 2026.

Questions people ask

Do TNUK and URNJ hold the same stocks?: By their latest filings, 3% of their books are the same securities at the same weight, which is mostly different names. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, TNUK or URNJ?: TNUK has 18% of its weight in S&P 500 names and URNJ has 0%, so URNJ differs more from the index.
Which is cheaper, TNUK or URNJ?: TNUK charges 0.85% a year and URNJ charges 0.80%, so URNJ is cheaper. Fees come from each fund's prospectus.

Other comparisons

TNUK vs URAN TNUK vs RCTR TNUK vs URA TNUK vs URNM URNJ vs NUKZ URNJ vs URNM URNJ vs UX URNJ vs URAN

TNUK on its own →URNJ on its own →How every figure is computed →Standards and sources →

Where these figures came from

TNUK filings on SEC EDGAR ↗Tortoise website ↗URNJ filings on SEC EDGAR ↗URNJ prospectus with the expense ratio (SEC) ↗Sprott page for URNJ ↗

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement. A comparison is not a recommendation.

Cite this page

ETFIQ, TNUK against URNJ, data as of Sep 30, 2026. https://etfiq.com/compare/themes/tnuk-vs-urnj

Open data

Free to use with attribution. Every figure is calculated from a named public source; the method is at etfiq.com/methodology.