Do RCTR and SMRF hold the same stocks?

By their latest filings, 29% of their books are the same securities at the same weight, which is a meaningful overlap. Overlap is the sum of the smaller weight of every security they share.

Which is more different from the S&P 500, RCTR or SMRF?

RCTR has 28% of its weight in S&P 500 names and SMRF has 28%, so RCTR differs more from the index.

Which is cheaper, RCTR or SMRF?

RCTR charges 0.70% a year and SMRF charges 0.65%, so SMRF is cheaper. Fees come from each fund's prospectus.

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RCTR vs SMRF: which is really different?

RCTR and SMRF hold 29% of their weight in the same names. First Trust Bloomberg Nuclear Power ETF and ALPS Nautilus SMR, Nuclear & Technology ETF.

27.5%

RCTR in the S&P 500

27.8%

SMRF in the S&P 500

−2.0%

RCTR total return, 1 year

−11.7%

SMRF total return, since launch

RCTR · 1 year to Sep 30, 202673% of its weight is outside the S&P 500

28% of RCTR's weight is in S&P 500 companies and 73% is outside the index

SMRF · 6 months to Sep 30, 202672% of its weight is outside the S&P 500

28% of SMRF's weight is in S&P 500 companies and 72% is outside the index

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

RCTR 60.1

SMRF 27.5

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, RCTR and SMRF hold 29% 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 May 31, 2026 and Sep 30, 2026.

50%

half

29% in common

Positions both hold, largest shared weight first

Holding RCTR SMRF

Cameco Corp. 4.18% 4.30%

GE Vernova Inc. 4.04% 3.82%

BWX Technologies, Inc. 3.39% 4.23%

Rolls-Royce Holdings Plc 4.57% 2.16%

NexGen Energy Ltd. 2.03% 4.23%

Uranium Energy Corp. 1.61% 4.00%

Paladin Energy Ltd 1.03% 3.41%

Denison Mines Corp 0.83% 2.96%

Vistra Corp. 4.34% 0.79%

Yellow Cake Plc 0.63% 1.84%

Fortum Oyj 1.98% 0.15%

AtkinsRealis Group Inc. 0.71% 0.14%

Only in RCTR

Hitachi, Ltd. 5.75%

Doosan Enerbility Co., Ltd. 5.08%

Constellation Energy Corporation 5.03%

Mitsubishi Heavy Industries, Ltd. 4.91%

BHP Group Limited 4.77%

Duke Energy Corporation 4.17%

Entergy Corporation 4.08%

Talen Energy Corporation 4.06%

Only in SMRF

Cgn Power Co Ltd 4.28%

Oklo Inc 4.22%

Nac Kazatomprom Jsc 3.82%

Nuscale Power Corp 3.77%

Energy Fuels Inc/canada 3.54%

Centrus Energy Corp 3.17%

Astera Labs Inc 2.83%

Micron Technology Inc 2.43%

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

29% 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	RCTR	SMRF	RCTR	SMRF	RCTR	SMRF
3 months	−3.6%	−11.2%	−6.1 pts	−13.7 pts	−5.7 pts	−13.3 pts
6 months	−10.6%	−2.9%	−27.6 pts	−19.9 pts	−37.5 pts	−29.8 pts
1 year	−2.0%	not published	−17.7 pts	not published	−25.8 pts	not published
Since launch RCTR Jul 2025 · SMRF Feb 2026	+6.0%	−11.7%	−16.3 pts	−24.0 pts	−25.7 pts	−34.7 pts

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

On the same fields

RCTR

First Trust Bloomberg Nuclear Power ETF · Holds 50 stocks in nuclear and uranium, 28% of its weight in S&P 500 companies

SMRF

ALPS Nautilus SMR, Nuclear & Technology ETF · Holds 72 stocks in nuclear and uranium, 28% of its weight in S&P 500 companies

Issuer First Trust ALPS

Theme Nuclear and uranium Nuclear and uranium

In the S&P 500 27.5% 27.8%

Active share vs the S&P 500 98.9% 92.5%

In the Nasdaq-100 5.0% 14.4%

Holdings 50 72

Top ten, share of the fund 46.9% 40.2%

Expense ratio 0.70% 0.65%

Fee for the differing part 0.71% 0.70%

Total return, 1 year −2.0% −11.7% (since launch on Feb 19, 2026)

vs the S&P 500 −17.7 pts −24.0 pts

vs the Nasdaq-100 −25.8 pts −34.7 pts

Below its high −17.8% −22.1%

Net assets $29m $11m

RCTR and SMRF on the same fields, as of Sep 30, 2026. Source: ETFIQ.

RCTR in plain words

By weight, 28% of RCTR'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 47% of the fund across 50 positions, as published by its issuer for Sep 30, 2026. Over the year to Sep 30, 2026 the fund returned −2.0% with distributions reinvested against +15.7% for the S&P 500, so a holder was behind by 17.7 pts. It sits 17.8% below its all-time high of May 6, 2026.

SMRF in plain words

By weight, 28% of SMRF's portfolio is stocks that are also in the S&P 500; its active share against the S&P 500 is 92%. The top ten holdings are 40% of the fund across 72 positions, as filed for May 31, 2026. Since it launched on Feb 19, 2026 the fund returned −11.7% with distributions reinvested against +12.3% for the S&P 500, so a holder was behind by 24.0 pts. It sits 22.1% below its all-time high of Jun 2, 2026.

Questions people ask

Do RCTR and SMRF hold the same stocks?: By their latest filings, 29% of their books are the same securities at the same weight, which is a meaningful overlap. Overlap is the sum of the smaller weight of every security they share.
Which is more different from the S&P 500, RCTR or SMRF?: RCTR has 28% of its weight in S&P 500 names and SMRF has 28%, so RCTR differs more from the index.
Which is cheaper, RCTR or SMRF?: RCTR charges 0.70% a year and SMRF charges 0.65%, so SMRF is cheaper. Fees come from each fund's prospectus.

Other comparisons

RCTR vs TNUK RCTR vs URAN RCTR vs URNJ RCTR vs URNM SMRF vs TNUK SMRF vs URAN SMRF vs URNJ SMRF vs URNM

RCTR on its own →SMRF on its own →How every figure is computed →Standards and sources →

Where these figures came from

RCTR filings on SEC EDGAR ↗RCTR prospectus with the expense ratio (SEC) ↗First Trust page for RCTR ↗SMRF filings on SEC EDGAR ↗SMRF prospectus with the expense ratio (SEC) ↗ALPS website ↗

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, RCTR against SMRF, data as of Sep 30, 2026. https://etfiq.com/compare/themes/rctr-vs-smrf

Open data

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