Wall Street Bets on the Nuclear Renaissance: Inside the SMRZ ETF

NEW YORK, NY – October 15, 2026

The artificial intelligence revolution has a glaring bottleneck: electricity. As hyperscalers race to build massive data centers capable of training the next generation of AI models, the U.S. grid is straining under the weight of projected demand. Data center power consumption is expected to more than double from 17 gigawatts (GW) in 2022 to an estimated 35 GW by 2030. In the search for reliable, carbon-free baseload power that operates around the clock, the technology sector has zeroed in on an unexpected savior: the nuclear industry.

Capitalizing on this momentum, thematic exchange-traded fund provider Global X Management Company LLC has launched the Global X Small Modular Reactor ETF (ticker: SMRZ). The actively managed fund seeks to provide targeted exposure to the companies designing, building, and fueling small modular reactors (SMRs). But as is often the case in the journey from prototype to profit, the distance between regulatory approvals and commercial viability is fraught with financial and operational hurdles.

The AI Energy Crunch Fuels a Speculative Boom

The launch of SMRZ coincides with a flurry of unprecedented partnerships between Silicon Valley and the nuclear sector. Tech giants are no longer just buying renewable energy credits; they are directly financing the revival and evolution of atomic power.

“The nuclear renaissance isn’t coming. It’s here,” noted Pedro Palandrani, Head of Product Research & Development at Global X, in the fund's launch announcement. “AI is a big part of the demand story, but it isn’t the whole story. The grid needs reliable, around-the-clock power that’s built at home, and we believe SMRs could be one of the few technologies capable of delivering it at scale.”

The demand signals are undeniably strong. Just over the past two years, the market has witnessed a seismic shift in corporate energy procurement. Amazon recently anchored a $500 million financing round in X-Energy to fund the completion of its advanced reactor design, while also signing a massive power purchase agreement (PPA) with Talen Energy for its existing nuclear plant. Google has inked a master development agreement with Kairos Power to purchase energy from SMRs, targeting commercial deployment by 2030. Microsoft, meanwhile, signed a historic 20-year agreement to restart a reactor at the former Three Mile Island site.

These hyperscaler investments validate the commercial need for firm, clean power. However, while tech companies have deep enough pockets to fund early-stage research and development, retail and institutional investors eyeing the SMRZ ETF must carefully evaluate the underlying financials of the companies tasked with actually building these next-generation reactors.

Inside SMRZ: High Fees and Extreme Concentration

While the macroeconomic thesis for SMRs is compelling, the construction of the SMRZ ETF presents a highly concentrated risk profile. As an actively managed fund with a relatively high gross expense ratio of 0.75%, SMRZ targets approximately 15 global companies. A closer look at the portfolio reveals that a staggering 66% of its weight is concentrated in just four holdings: NuScale Power Corp. (19.04%), X-Energy Inc. (18.85%), Oklo Inc. (15.48%), and Nano Nuclear Energy Inc. (13.53%).

Crucially, all four of these top holdings are primarily development-stage, pre-revenue companies. They are currently burning through significant capital to fund research, licensing, and facility development, with substantial commercial revenue streams still several years away.

Nano Nuclear Energy, for example, reported a net loss of over $40 million for the fiscal year ending September 2025, carrying an accumulated deficit of approximately $57.5 million. The company recently filed an amended shelf registration to offer up to $900 million in securities to fund its ongoing operations. Similarly, Oklo, which is developing advanced microreactors, remains a pre-revenue entity targeting pilot operations no earlier than 2027 or 2028.

By heavily weighting the fund toward these early-stage ventures, SMRZ offers investors a front-row seat to the potential upside of a nuclear breakthrough. However, it also exposes them to the severe volatility and dilution risks inherent in capital-intensive startups that must continually raise funds before delivering a commercially viable product.

Beyond the Mega-Plant: Reshaping Grid Economics

The fundamental promise of the SMR industry is a structural shift away from the traditional nuclear mega-project. Historically, large-scale nuclear plants have been notoriously difficult to finance due to their massive scale, immense capital intensity, decades-long construction lead times, and technical complexity.

Small modular reactors are designed to circumvent these pitfalls. By utilizing compact designs that can be manufactured in factories, transported to pre-selected sites, and assembled individually or in clusters, SMR developers aim to standardize production and drastically reduce upfront costs. The International Energy Agency (IEA) projects that under strong policy support scenarios, cumulative investment in SMRs could jump from $5 billion today to more than $25 billion by 2030, eventually reaching $670 billion by 2050.

Yet, the transition from theoretical cost savings to actual profit is proving difficult. NuScale Power, the fund’s top holding, achieved a major milestone when it became the first company to receive design certification from the U.S. Nuclear Regulatory Commission (NRC) in 2023. However, later that same year, the company's flagship UAMPS Carbon Free Power Project was abruptly cancelled due to severe cost escalations.

The cancellation served as a harsh reality check for the industry, demonstrating that "modular" does not automatically equate to "cheap" or "easy." NuScale has since pivoted, announcing plans to deploy its technology for data center operator Standard Power in Ohio and Pennsylvania, but the previous setback highlights the immense execution risks these companies face.

Bridging the Gap to Commercial Viability

For the SMR industry to transition from the prototype phase to sustained profitability, several critical bottlenecks must be resolved. Beyond the immediate challenge of finalizing NRC licenses and construction permits, the industry faces a nascent supply chain.

Many advanced reactor designs require High-Assay Low-Enriched Uranium (HALEU), a specialized fuel that currently lacks a robust domestic commercial supply chain. Furthermore, manufacturing the specialized components required for these reactors at a scale that actually achieves the promised factory-line cost reductions will require billions of dollars in industrial infrastructure development.

Industry analysts widely agree that while pilot projects may come online in the late 2020s, broad commercial availability of SMRs is realistically slated for the mid-2030s. The recent wave of PPAs signed by Meta, Google, and Amazon reflects a willingness by tech giants to subsidize this long-term development to secure their future energy pipelines.

For Wall Street, the launch of the SMRZ ETF represents a vehicle to financialize this long-term infrastructure play. The fund provides retail investors with direct access to the companies attempting to solve the AI energy crisis. However, buyers must approach the sector with clear eyes regarding the commercialization timeline. The companies leading the charge are navigating a complex labyrinth of federal regulations, unproven manufacturing models, and massive capital requirements, making the path to profit a marathon rather than a sprint.