Fund · Range Nuclear Renaissance Index ETF · measured from SEC filings
NUKZ holdings
NUKZ reports 46 holdings and behaves like 34.4 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-05-31. The fact sheet publishes the first number; this page computes the second, and traces it across 10 quarters of filings.
Measured concentration
as of 2026-05-31Computed by this site from the fund's SEC Form N-PORT filing; what the measure does not tell you · every fund in one table · hold it with other funds? X-ray the mix. Pricing: 100% at a quoted market price (level 1), 10 issuer countries.
What stands out
as of 2026-05-31NUKZ's largest investment is Cameco Corp at 9.06% of net assets. Samsung C&T Corp and GE Vernova Inc follow; the three together are 15.81%. Ten companies are 36.4% of the fund; the other 36 share the rest. Among the 721 equity funds measured here, NUKZ behaves like 34.4 holdings against a median of 42.4 — close to the median. Across 10 quarterly filings NUKZ has become less concentrated: it behaved like 18.3 at 2024-02-29 and 34.4 at 2026-05-31. Between the 2026-02-28 and 2026-05-31 filings 4 positions were added and 3 dropped; 21.3% of the weight moved. the United States is the largest country at 65.48% of the portfolio, across 10 countries in the filing.
Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable equity funds on this site. Nothing here is a view on the fund.
Every filing since 2024
10Between 2024-02-29 and 2026-05-31, NUKZ went from behaving like 18.3 equally weighted positions to 34.4 — 88% more, while its top ten went from 58.8% to 36.4% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-05-31 | 46 | 34.4 | 36.4% | 9.1% |
| 2026-02-28 | 45 | 29 | 42.93% | 10.21% |
| 2025-11-30 | 45 | 29.8 | 40.72% | 8.9% |
| 2025-08-31 | 44 | 28 | 43.75% | 10.26% |
| 2025-05-31 | 46 | 28.5 | 41.84% | 9.27% |
| 2025-02-28 | 38 | 20.1 | 55.43% | 13.4% |
| 2024-11-30 | 38 | 21.9 | 54.76% | 10.44% |
| 2024-08-31 | 37 | 25.7 | 45.32% | 9.58% |
Earlier filings (2 more, back to 2024-02-29)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-05-31 | 38 | 23 | 47.85% | 11.87% |
| 2024-02-29 | 31 | 18.3 | 58.8% | 13.84% |
One row per filed reporting period, newest first, read from EDGAR. Quarterly because that is the public filing cadence. Rows marked * are published but held out of the comparison above; the methodology page says when and why.
Largest positions, as filed
as of 2026-05-31The 15 largest of 46 positions in NUKZ's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: NUKZ.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | CAMECO CORPORATION | 9.10% | 9.1% |
| 2 | SAMSUNG C&T CORPORATION | 3.45% | 12.5% |
| 3 | GE VERNOVA INC. | 3.34% | 15.9% |
| 4 | TALEN ENERGY CORP | 3.27% | 19.1% |
| 5 | ROLLS-ROYCE HOLDINGS PLC | 3.02% | 22.2% |
| 6 | CEZ, a.s. | 2.98% | 25.1% |
| 7 | Dominion Energy, Inc. | 2.92% | 28.1% |
| 8 | Endesa, Sociedad Anonima | 2.87% | 30.9% |
| 9 | VISTRA CORP. | 2.75% | 33.7% |
| 10 | SOLSTICE ADVANCED MATERIALS INC. | 2.71% | 36.4% |
| 11 | Fortum Oyj | 2.63% | 39.0% |
| 12 | CONSTELLATION ENERGY CORPORATION. | 2.62% | 41.6% |
| 13 | DUKE ENERGY CORPORATION | 2.55% | 44.2% |
| 14 | CURTISS-WRIGHT CORPORATION | 2.50% | 46.7% |
| 15 | PG&E CORPORATION | 2.48% | 49.2% |
By country of issuer
as of 2026-05-31Share of NUKZ's own investments by the issuer country the filer reported (incorporation, not revenue). Each country links to every fund that holds it.
| Country | Share |
|---|---|
| United States | 65.48% |
| South Korea | 10.52% |
| Japan | 6.83% |
| United Kingdom | 3.02% |
| Czechia | 2.98% |
| Spain | 2.87% |
| Finland | 2.63% |
| Canada | 2.08% |
Returns the fund reported
2023-12 – 2026-05Monthly total returns from Item B.5 of NUKZ's own filings, 28 months on record. Not computed here and not from a price feed.
Cross-checked against a series computed separately from prices: median difference — percentage points over 0 months, which is roughly the distributions. Every month with the filing it came from: NUKZ.json · all funds.
Since the previous filing
2026-02-28 → 2026-05-3145 positions became 46: 4 added (7.3% of the fund at the later date), 3 dropped (8.4% at the earlier date). Half the sum of all weight changes, a turnover proxy: 21.3%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of NUKZ compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-02-28 | 2026-05-31 | Largest decreases | 2026-02-28 | 2026-05-31 |
|---|---|---|---|---|---|
| SOLSTICE ADVANCED MATERIALS INC. | 0.23% | 2.71% | CONSTELLATION ENERGY CORPORATION. | 7.14% | 2.62% |
| TALEN ENERGY CORP | 1.56% | 3.27% | LOCKHEED MARTIN CORPORATION | 3.49% | 1.85% |
| ASP Isotopes Inc | 0.89% | 1.99% | CAMECO CORPORATION | 10.21% | 9.10% |
| CEZ, a.s. | 1.93% | 2.98% | Silex Systems Ltd | 2.62% | 1.61% |
| Nuscale Power Corp | 0.72% | 1.76% | Mitsubishi Heavy Industries, Ltd. | 2.70% | 1.82% |
| VISTRA CORP. | 1.74% | 2.75% | KEPCO Engineering & Construction Company, Inc | 1.57% | 0.76% |
New: Terra Innovatum Global NV (2.34%), Terrestrial Energy Inc (2.24%), URANIUM ENERGY CORP. (1.46%), AMERESCO, INC. (1.31%). Gone: QUANTA SERVICES, INC. (3.25%), HONEYWELL INTERNATIONAL INCORPORATION (2.91%), MASTEC, INC. (2.26%).
Asset categories and pricing
as of 2026-05-31100.00% equity as filed; 100.0% carried at a quoted market price (fair-value level 1). Categories and levels are the filer's; what a low level-1 share does and does not mean is in the measure's page.
Neighbours by effective holdings, equity funds
10Every measured equity fund lined up by how many holdings it behaves like; these sit either side of NUKZ (34.4). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| QQQ Invesco QQQ Trust, Series 1 | 103 | 34.1 | 45.03% | 2026-06-30 |
| FDEM Fidelity Emerging Markets Multifactor ETF | 208 | 34.2 | 36.71% | 2026-07-31 |
| QRFT QRAFT AI-Enhanced U.S. Large Cap ETF | 299 | 34.2 | 43.96% | 2026-04-30 |
| QQQI NEOS Nasdaq-100(R) High Income ETF | 103 | 34.3 | 45% | 2026-06-30 |
| USCA Xtrackers MSCI USA Climate Action Equity ETF | 408 | 34.3 | 46.11% | 2026-05-29 |
| IBB iShares Biotechnology ETF | 251 | 34.6 | 44.63% | 2026-06-30 |
| EWC iShares MSCI Canada ETF | 87 | 34.6 | 43.06% | 2026-05-31 |
| AIQ Global X Artificial Intelligence & Technology ETF | 84 | 34.8 | 42.74% | 2026-05-31 |
| GPIQ Goldman Sachs Nasdaq-100 Premium Income ETF | 103 | 35 | 44.42% | 2026-06-30 |
| OAKM Oakmark U.S. Large Cap ETF | 40 | 35 | 37.01% | 2026-06-30 |
Essays that examine NUKZ
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Mentions are detected across the full text of every article, so an appearance may be a passing comparison rather than the subject. Nothing here is a recommendation to buy or sell — see the disclaimer.