TNUK vs URA

TNUKCTortoise Nuclear Renaissance ETF

URABGlobal X Uranium ETF

In short

TNUK Most 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.

URA The original US uranium ETF, trading since 2010, long before the nuclear theme got crowded. It holds roughly 50 names spanning miners and nuclear-component makers, so the reactor supply chain rides along with the yellowcake.

Stated mandate

TNUK 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.

URA The fund seeks to track, before fees and expenses, the performance of the Solactive Global Uranium & Nuclear Components Total Return Index. It concentrates at least 80% of assets in companies involved in uranium or nuclear-component activities.

Why people hold it

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

• URA Launched in 2010, the first US fund on this theme, and today a multi-billion-dollar, actively traded name. Size and volume usually mean tighter spreads for the person clicking buy.
• 0.69% expense ratio sits below the typical fee among uranium and nuclear funds, which is rare for a single-theme product this specialized.
• Not a pure miner basket. The index reaches into nuclear components too, with at least 80% of assets in uranium or nuclear-component companies, worldwide.
• Rates as one of the stronger builds in its uranium and nuclear peer group on cost, tradability and staying power.

Worth knowing

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

• URA One theme, about 50 stocks. Uranium prices, mine permits and reactor policy move the whole basket at once, and the ride has historically been bumpy.
• A cheaper shelf-mate exists: NLR charges 0.52% for a nearby uranium and nuclear mandate.
• Global mandate means overseas miners, so foreign currency and permitting regimes come with the package. Distributions arrive once or twice a year, not monthly.

Full TNUK profile⁠

Full URA profile⁠