Holtec’s chief executive officially pulled the company’s planned initial public offering on September 16, ending what would have been one of the largest nuclear energy market debuts of 2026.
The Camden, New Jersey-based firm had been set to raise as much as $900 million, offering 50 million shares priced between $15 and $18 each, according to earlier filings with the U.S. Securities and Exchange Commission.
Holtec’s CEO cited deteriorating investor sentiment tied to the AI data center economy as the primary reason for suspending the offering at this time.
“It’s like a perfect storm,” the CEO explained, adding that “our business, rightly or wrongly, is viewed as connected to it [data centres]. We provide nuclear power. So that was, of course, a big factor in market sentiment against nuclear.”
Holtec is primarily a supplier of nuclear components, including specialized containers used to store nuclear waste, rather than a developer of nuclear energy systems in the traditional sense.
The company had intended to use IPO proceeds to fund a strategic pivot, including restarting a mothballed nuclear facility in Michigan and advancing its small modular reactor development ambitions.
The pullback in sentiment was not confined to Holtec alone, with NuScale Power (NYSE: SMR) losing 25.8%, Oklo (NYSE: OKLO) declining 17.8%, and X-energy falling 23.9% between September 8 and September 16.
Despite the turbulence, Holtec has not permanently abandoned its public listing plans, with the Financial Times reporting the company expects to retain its IPO registration and could attempt to float again within three to six months depending on market conditions.
The underlying demand driver for nuclear power remains firmly in place, with McKinsey and Co. predicting $7 trillion will be deployed globally to build energy-intensive AI data centers by 2030.
Both Oklo and NuScale Power shares hit all-time highs in 2025, and a return of enthusiasm for small modular reactor stocks could prompt Holtec to revisit its listing ambitions relatively quickly.
Oklo’s strategy of pitching its power directly to AI and data center companies positions it differently from NuScale’s utility-focused model, a distinction that could matter significantly when investor appetite returns.
Positive news elsewhere in the SMR sector during the same week helped temper the immediate alarm, with both stocks gaining roughly 10% following a separate announcement, offsetting some of the losses tied to Holtec’s withdrawal.
Investors in NuScale and Oklo have reasons for short-term caution, but the structural case for low-carbon baseload nuclear power serving the AI economy has not fundamentally changed with one shelved IPO.
