ETF Evaluator:
Tortoise Nuclear Renaissance ETF ()
Follow This ETF
(as of Aug 26)
Best Performing in Equity Energy Over the Last Year
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| 73.1% | BP p.l.c. ADRhedged (BPH) |
| 69.1% | Stt Strt®SPDR®S&P®Oil &GasEqpmnt&SvcsETF (XES) |
| 66.9% | VanEck Oil Refiners ETF (CRAK) |
| 60.9% | VanEck Oil Services ETF (OIH) |
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Risk
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ETF Details
Tortoise Nuclear Renaissance ETF Overview
Tortoise Nuclear Renaissance ETF (TNUK) is an actively managed Sector Equity Equity Energy exchange-traded fund (ETF). Tortoise Capital launched the ETF in 2025.
The investment seeks total return.
Under normal circumstances, the fund will invest at least 80% of its total assets in securities of (i) companies that the Adviser believes are expected to derive at least 50% of their revenues from activities in Nuclear Industries; (ii) companies that have primary business operations in the business activities associated with the Nuclear Industries but that do not currently generate net revenues; and (iii) companies with less than 50% of revenues currently derived from activities in the Nuclear Industries but that have publicly disclosed nuclear energy as a strategic focus area. The fund is non-diversified.
About Tortoise Nuclear Renaissance ETF (TNUK)
There are 4 members of the management team with an average tenure of 0.62 years: Brian Kessens (2025), James Mick (2025), Matthew Sallee (2025) and Robert Thummel (2025). Management tenure is more important for actively managed ETFs than passive index ETFs.
Tortoise Nuclear Renaissance ETF has 27 securities in its portfolio. The top 10 holdings constitute 64.3% of the ETF’s assets. The ETF meets the SEC requirement of being classified as a nondiversified fund. The ETF is not considered to have an ESG focus with its investment selection and management.
Tortoise Nuclear Renaissance ETF is part of the Equity global asset class and is within the Sector Equity ETF group. Tortoise Nuclear Renaissance ETF has 36.0% of its portfolio invested in foreign issues. The overall assets allocated to domestic stock is 63.5% There is 36.0% allocated to foreign stock, and 0.0% is allocated to preferred stocks. The bond allocation as a percentage of total assets is 0.0% (0.0% domestic bond, 0.0% foreign bond and 0.0% convertible bond). Tortoise Nuclear Renaissance ETF has 0.5% of the portfolio in cash.
Assets Under Management
The fund has $1 million in total assets, which is below the $1 billion average for the Equity Energy category. Normally, lower assets under management translates to higher average expense ratios, and greater total assets are desired. However, for some investment categories, such as small-cap investing, it may be difficult for the manager to fully employ the desired active strategy if assets grow too large or too quickly.
TNUK Performance and Fees
The expense ratio measures how much of a fund’s assets are used for administrative expenses and operating expenses, including adviser fees and fees for the transfer agent and custodial services. The Tortoise Nuclear Renaissance ETF expense ratio is above average compared to funds in the Equity Energy category. Tortoise Nuclear Renaissance ETF has an expense ratio of 0.75%, which is 39% higher than its category average, making the fund expense ratio grade a D. While it is difficult to predict returns, it is known that high annual expense ratios reduce your rate of return, and excessive fees are difficult to overcome. Active management normally comes with higher expense ratios than passive index management. Certain investment categories such as small company and foreign also normally have higher expense ratios. It is best to compare fund expense ratios against the category averages for meaningful assessments.
High portfolio turnover can translate to higher expenses and lower aftertax returns. Tortoise Nuclear Renaissance ETF has a portfolio turnover rate of 0%, which indicates that it holds its assets around /years. By way of comparison, the average portfolio turnover is 28% for the Equity Energy category.
Recently, in the month of July 2026, Tortoise Nuclear Renaissance ETF returned -6.5%, which earned it a grade of F, as the Equity Energy category had an average return of 5.2%. The letter grades of A, B, C, D and F are based upon relative rankings within the investment category. A grade of A, for example, would indicate that the return is in the highest 20% for that time period compared to all ETFs in that category.
Tortoise Nuclear Renaissance ETF has a trailing yield of 0.00%, which is below the 2.25% category average.
The fund normally distributes its income semi-annually and its capital gains annually.
It’s natural to seek the best-performing investments, but you must consider the relationship between risk and return and the impact of costs and taxes on your realized returns.
Tortoise Nuclear Renaissance ETF Grades
Year to date, the ETF has returned -6.6%, 35.1 percentage points worse than the category, which translates into a grade of F.
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TNUK Trailing NAV Total Returns Data as of 7/31/26
| Last Month |
Last Quarter |
Ann'l. 1Yr |
Ann'l. 3Yr |
Ann'l. 5Yr |
Ann'l. 10Yr |
|
| TNUK Return (NAV) | -6.5% | -17.2% | na | na | na | na |
| TNUK Return (Price) | -6.8% | -13.1% | na | na | na | na |
| NAV +/- Price Return | 0.226% | -4.178% | na | na | na | na |
| Equity Energy Avg | 5.2% | -3.4% | 41.0% | 12.5% | 18.2% | 6.1% |
| TNUK Grade (NAV) | F | F | na | na | na | na |
| +/- Category (NAV) | -11.7% | -13.8% | na | na | na | na |
| TNUK Tax-Cost Ratio | na | na | na | na | na | na |
TNUK Annual NAV Total ReturnsData as of 7/31/26
| 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
| TNUK Return (NAV) | -6.6% | na | na | na | na | na | na | na | na | na | na |
| TNUK Return (Price) | -6.9% | na | na | na | na | na | na | na | na | na | na |
| NAV +/- Price Ret | 0.031% | na | na | na | na | na | na | na | na | na | na |
| Equity Energy Avg | 28.5% | 10.4% | 2.7% | 3.9% | 43.8% | 43.2% | -22.2% | 6.8% | -24.5% | -4.1% | 26.3% |
| TNUK Grade (NAV) | F | na | na | na | na | na | na | na | na | na | na |
| +/- Category | -35.1% | na | na | na | na | na | na | na | na | na | na |
| Risk Measures | |
| Beta: | na |
| R-Squared: | na |
| Standard Deviation: | na |
| Category Risk Index: | na |
| Category Risk Rating: | |
| Total Risk Index: | na |
| Total Risk Rating: | |
| Portfolio Characteristics | |
| Yield: | -- |
| Total Assets: | $ 2 Mil |
| Share Class Assets: | $ 2 Mil |
| Turnover: | na |
| Expense Ratio: | 0.75% |
| Index Fund: | No |
| Index Tracked: | N/A |
| Index Weighting: | 100% |
| Leveraged: | No |
| Socially Responsible Fund: | No |
| Capital Gains Distribution Frequency: | Annually |
| Income Distribution Frequency: | Semi-Annually |
Management Team
| Number of Managers: 4 | |||
| Longest Tenure: 0.6 years | |||
| Average Tenure: 0.6 years | |||
| Managers (Year): Kessens Brian (2025), Mick James (2025), Sallee Matthew (2025), Thummel Robert (2025) | |||
Portfolio Composition (as of 7/31/26)
| # of Holdings: | 27 |
| % in Top 10 Holdings: | 64.3% |
| Fund is Non-Diversified: | Yes |
| % in Foreign Issues: | 36.0% |
Portfolio Allocation |
|
| Domestic Stock: | 63.5% |
| Foreign Stock: | 36.0% |
| Preferred Stock: | 0.0% |
| Domestic Bond: | 0.0% |
| Foreign Bond: | 0.0% |
| Convertible Bond: | 0.0% |
| Other: | 0.0% |
| Cash: | 0.5% |
Purchase Information
| Legal Structure: | Open Ended Investment Company |
| Fund Family: | Tortoise Capital |
| Phone Number: | 855-994-4437 |
| Website: | |
| Inception Date: | December 16, 2025 |
Expenses and Fees
| Expense Ratio (%): | 0.75% (Rating: Above Avg) |
| Category Average Expense Ratio (%): | 0.54% |
