Forget Solar. The Nuclear Fund Powering the AI Boom Is Up 22% YTD as Big Tech Signs Reactor Deals

The post Forget Solar. The Nuclear Fund Powering the AI Boom Is Up 22% YTD as Big Tech Signs Reactor Deals appeared first on 24/7 Wall St..

If you own the Invesco Solar ETF (NYSEARCA:TAN) because you wanted exposure to the energy buildout behind artificial intelligence, the thesis deserves a second look. TAN is the default vehicle for clean-power exposure, holding panel manufacturers, inverter makers, and residential installers. It has historically served investors who wanted a single ticker tied to the decarbonization trade. The problem is that hyperscalers writing checks for AI data center power are not signing solar agreements. They are signing reactor deals, and a different fund holds the companies on the other end of those contracts.

Microsoft, Amazon, Google, and NVIDIA have spent the past 18 months locking in nuclear capacity for facilities that cannot tolerate the intermittency of solar or wind. Microsoft and NVIDIA are collaborating to digitize reactor designs and operations, while Microsoft and Amazon have already secured nuclear power agreements for their data centers. TAN’s holdings are not the counterparties on those deals. Solar still plays a role in the grid, but it does not deliver the 24/7 baseload AI training clusters require, and the fund’s performance has reflected that mismatch as capital rotates toward firm power.

The Fund Sitting on the Other Side of Those Contracts

The VanEck Uranium and Nuclear ETF (NYSEARCA:NLR) holds the utilities, reactor builders, and uranium miners that supply the deals hyperscalers are signing. Top holdings include Constellation Energy, Cameco, and BWX Technologies, which give shareholders direct exposure to the operators that sell power to data centers and to the fuel cycle that supports them. NLR is up 22.94% over the past year and 158.7% over five years, with shares closing at $125.64 on June 15, 2026.

The mechanism matters more than the headline number. When Constellation signs a power purchase agreement with a hyperscaler, the revenue flows to a company that NLR holds. When BWX wins reactor work tied to federal nuclear expansion or military microreactor programs, the same shareholders benefit. TAN holders capture none of that. The performance gap reflects which fund owns the companies actually selling the megawatts.

The Higher-Octane Cousins

For investors who want concentrated uranium exposure, the Sprott Uranium Miners ETF (NYSEARCA:URNM) is the pure-play option. URNM is up 5.48% year to date and 38.17% over the past year, outpacing NLR on a one-year basis but with sharper drawdowns. The Range Nuclear Renaissance Index ETF (NYSEARCA:NUKZ) sits between the two, up 10.58% year-to-date and 32.39% over the past year, with a tilt toward reactor technology and small modular reactor developers. NLR is the steadier, more diversified vehicle because it spans utilities, miners, and engineering firms rather than concentrating in a single segment.

The Tradeoffs Worth Naming

Nuclear is sentiment-driven and volatile, and NLR is down 2.83% over the past month, even after the multi-year run. One analyst warned in December 2025 that the rally had outrun fundamentals and that a correction was likely in 2026. The fund holds pre-revenue small modular reactor developers, which adds binary risk. Policy and permitting timelines could slip, and projects like Google’s Kairos partnership are targeted for 2030, not next quarter. TAN’s exposure suits a long-horizon decarbonization view but works poorly for a thesis built specifically on AI baseload power.

How the Swap Looks in Practice

In a tax-advantaged account, rotating from TAN to NLR is a straightforward sale and purchase with no immediate tax friction. In a taxable account, check the cost basis on TAN shares first. A partial rotation, moving half the position into NLR while leaving the rest in solar, preserves clean-energy diversification and tests the thesis without concentrating the bet. A position split between NLR and a higher-beta sleeve in URNM or NUKZ captures the range of nuclear exposure if the broader thesis plays out.

What the Setup Actually Implies

The case for swapping rests on hyperscaler capital moving toward firm, dispatchable power, with NLR holding the companies on the receiving end of those contracts. If the reactor permits stall or hyperscalers pivot back to renewables for data center load, the thesis weakens. For investors who bought TAN as an AI-adjacent energy play rather than a pure solar bet, NLR is the more direct expression of what the hyperscalers are actually building.

The post Forget Solar. The Nuclear Fund Powering the AI Boom Is Up 22% YTD as Big Tech Signs Reactor Deals appeared first on 24/7 Wall St..