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TNUK

GradeCNew York Stock Exchange Arca

Tortoise Nuclear Renaissance ETF

Themes · Tortoise · Inception 2025-12-18

$22.93−0.43 (−1.86%)

As of Sep 23, 2026, 3:13 PM EDT

History starts Dec 18, 2025.History starts Dec 18, 2025.
Intraday session: down, 2 prints from 23.36 to 22.93. Range 22.93 to 23.36. Use the arrow keys to read each point.$23.00$23.20$23.4010 AM12 PM2 PM4 PM
Expense ratio
0.75%
Fund size
$1M
1Y return
—
Yield · Last 12 months
—
Volume · 30D
0M sh
NAV per share
$23.17
52W range
low $22.28high $32.79

The ETF.net TNUK Grade

C

40/ 100

Rank 7 of 9 in Uranium & Nuclear⁠

Confidence Medium

Six-pillar profile for TNUK. Scores out of 100: Cost 42, Risk 47, Mission not scored, Tradability 37, Holdings 49, Durability 33. Strongest: Holdings (49). Weakest: Durability (33). Based on 5 of 6 pillars.
F< 25
D≥ 25
C≥ 40
B≥ 55
A≥ 70

Score 40 of 100 sits in the C band. Bands: A ≥ 70, B ≥ 55, C ≥ 40, D ≥ 25, F < 25; the scale skips E. A structural cap ceilings this fund at 40, so B and A are out of reach.

Ceiling 40 · B and A out of reach

The pillars earned42This cap took−2Published score40 Grade C

  • Cost

    What you pay to own it — the expense ratio plus trading frictions, ranked within its category.
    CScore 42
    Category rank5/9 · mid-pack

  • Mission

    How faithfully it does the job it claims — tracking its mandate or index with minimal slippage.
    Not scored
    —

  • Risk

    How violently it can move — volatility, drawdown depth, and downside capture versus its category.
    CScore 47
    Category rank5/9 · mid-pack

  • Tradability

    How cheaply and easily you can get in and out — liquidity, spread, and premium/discount stability.
    DScore 37
    Category rank7/9 · bottom quartile

  • Holdings

    What it actually owns — the quality, breadth, and concentration of the underlying portfolio.
    CScore 49
    Category rank5/9 · mid-pack

  • Durability

    Whether it will still be here — the fund’s assets, age, flows, and issuer staying power.
    DScore 33
    Category rank8/9 · bottom quartile

Graded as of Sep 22, 2026 · Based on 5 of 6 pillars

Our read on TNUK

ETF.net Research

CMost nuclear funds stop at the uranium miners. TNUK buys the whole chain: the diggers, the reactor designers and builders, and the crews that operate them, anywhere in the world. A December 2025 arrival priced right at the category midpoint.

Stated mandate

The Fund seeks total return by investing in companies across the nuclear energy value chain, including uranium mining and milling, reactor design and construction, and nuclear reactor operation and maintenance.

Why people hold it

  1. 01Covers the full nuclear value chain: uranium mining and milling, reactor design and construction, and reactor operation and maintenance, not just the fuel end.
  2. 02The 0.75% expense ratio sits exactly at the median for uranium and nuclear funds, and under Range's NUKZ at 0.85%.
  3. 03Global by mandate, which matters when much of the reactor-building and utility side of the industry sits outside the US.
  4. 04Plain equity fund in a standard 1940 Act ETF wrapper. No leverage, no swaps, no outcome period to track.

Worth knowing

  1. 01Launched in December 2025, so there is no long track record, and it is a small fund next to category veterans like URA and NLR.
  2. 02Trades lightly compared with the category's heavyweights, so spreads can be wide and limit orders do real work here.
  3. 03The mandate is total return, and the fund has not been making distributions. Income is not the job.

TNUK Holdings

As of Sep 20, 2026, 9:17 AM
Asset class
Stocks
Holdings
—
Top-10 weight
65%
Largest holding
034020.KS7.9%

Sectors

  • Industrials51.6%
  • Energy25.6%
  • Utilities22.7%
  • Materials0.1%
  • Technology0.0%

Geography

  • United States59.83%
  • Canada16.06%
  • South Korea7.89%
  • United Kingdom5.97%
  • Finland5.93%
  • Kazakhstan4.33%

Developed 70% · Emerging 30% of the foreign sleeve

The fund’s holdings, weight-ordered — page 1 of 2.
#TickerCompanyWeight %SharesMarket valueIn ETFs
001034020.KSDoosan Enerbility Co Ltd7.93%1,768$109K85
002MIRMirion Technologies Inc7.52%6,535$103K112
003CWCurtiss-Wright Corp7.14%172$98K221
004CCJCameco Corp6.97%1,042$95K49
005BWXTBWX Technologies Inc6.81%632$93K200
006FORTUM.HEFortum Oyj6.02%2,923$82K102
007ATRL.TOAtkinsRealis Group Inc5.96%1,297$82K57
008RYCEYRolls-Royce Holdings PLC5.93%4,185$81K17
009CEGConstellation Energy Corp5.49%295$75K353
010AMTMAmentum Holdings Inc5.24%3,662$72K116
011PEGPublic Service Enterprise Group Inc4.84%950$66K290
012KAP.ILNAC Kazatomprom JSC4.14%876$57K12
013LEUCentrus Energy Corp3.88%366$53K105
014TLNTalen Energy Corp3.78%177$52K166
015UECUranium Energy Corp3.74%5,226$51K93

Showing 1–15 of 26 holdings

TNUK Performance

Shows how $10,000 changes over the selected period, with cash distributions reinvested at the closing price on each ex-dividend date.

TNUK$9,237
SPY tracks large US stocks. It provides market context, rather than representing this fund’s strategy, asset class or investment benchmark.$11,430
Dec 31, 2025 to Sep 22, 2026. TNUK $9,237. SPY $11,430. Use the arrow keys to read each point.$8,705$10,464$12,222Dec 2025May 2026Sep 2026

Dec 31, 2025 – Sep 22, 2026

Returns run to the Sep 22, 2026 close, with cash distributions reinvested. Each period starts on the same date that many months or years earlier. Periods over one year show the average yearly return.

Trailing total return for TNUK. Periods over one year show the average yearly return.
PeriodTNUK
Year to date−7.6%
1 month−3.8%
3 months−11.9%
1 yearFund is under 1 year old—
3 yearsFund is under 3 years old—per year
5 yearsFund is under 5 years old—per year
10 yearsFund is under 10 years old—per year

As of the close, with distributions reinvested.

Calendar-year total return with cash distributions hypothetically reinvested at the ex-dividend date’s closing price. The current year shows year to date.

Annual total returns for TNUK
YearReturn barTNUK
2026 YTD−7.6%
2025+0.0%

Since listing, Dec 18, 2025

TNUK in the news

ETF.net Research hasn’t filed on TNUK yet — coverage lands here as it’s written.

TNUK Dividends

Adds up every distribution paid per share over the last 12 months, divided by the last completed close. Distributions are counted by ex-date. Data through Sep 22, 2026.
—Last 12 months
Payout per share
—Last 12 months

Listed Dec 2025. No distributions yet.

TNUK Risk

How much the fund’s monthly returns vary, scaled to a year.
—
Launched Dec 2025; fills in after 12 months
How it’s calculated: standard deviation

The sample standard deviation of monthly total returns, multiplied by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Total returns include reinvested distributions.

Return above 3-month US Treasury bills per unit of volatility.
—
Launched Dec 2025; fills in after 12 months
How it’s calculated: Sharpe ratio

Subtract each month’s Treasury-bill return from the fund’s monthly total return.

Divide the average of those excess returns by their sample standard deviation, then multiply by the square root of 12.

Uses up to 36 complete months, with at least 12 required. Each month uses the Treasury yield quoted at the end of the previous month.

The largest fall from a peak to the low that followed.
—
Launched Dec 2025; fills in after 12 months
How it’s calculated: maximum drawdown

The largest percentage decline from an earlier peak, using total returns with reinvested distributions.

Uses up to five years through the last close, with at least 12 months required.

How strongly the fund’s returns move with its asset-class index.
1.00
vs its asset-class index
How it’s calculated: beta

The beta figure is supplied by FMP. The comparison index depends on the fund’s broad asset class.

TNUK Cost

Expense ratio0.75%
  • The middle half of Uranium & Nuclear funds
  • Median 0.75%

4 of the 9 Uranium & Nuclear funds charge less.

TNUK costs $75.00 a year on $10,000. The median Uranium & Nuclear fund costs $75.00.