Nuclear Stocks Have Crashed 35% to 88% From Their Highs. Here's What $1,000 in Each of These 5 Could Be Worth by 2030.

The energy requirements for artificial intelligence ( AI ) data centers are astounding. Funded by utilities and directly by some of the world's largest companies, reliable baseload power is becoming a hot commodity, which is why nuclear power is undergoing a renaissance.

However, if you look at a lot of nuclear energy stocks, you would think the opposite has occurred. When looking at some of the largest nuclear-associated stocks in the world, like Constellation Energy(NASDAQ: CEG), Vistra(NYSE: VST), and BWX Technologies(NYSE: BWXT), or hot nuclear energy start-ups like Oklo(NYSE: OKLO) and NuScale Power(NYSE: SMR), they are all down about 35% to more than 80% from their highs.

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Does that make the sector a buying opportunity today? Here's what $1,000 invested in each of these five nuclear stocks could be worth in 2030.

Rise and fall of nuclear stocks

When looking at nuclear stocks, it can pay to zoom out. Constellation Energy is down 35% from its highs, but during the past five years, it is up almost 500%. That makes it one of the best performers of the post-pandemic era. Vistra is up even more, rising more than 600% during that stretch.

This is due to simultaneous improvements in their businesses and in investor sentiment toward nuclear power. Contsellation Energy's revenue hit a record, while Vistra's grew to $9.66 billion in the first half of 2026, compared to $8.18 billion in the same period a year ago. Constellation is an operator of nuclear power plants, while Vistra is a power producer diversified across different energy types, but has recently made a large investment in nuclear power.

So why are the stocks down? In recent years, nuclear power has become a major theme among investors, and this has begun to show up in financial results. However, stock prices started to get way ahead of themselves, and with the AI energy sector cooling off, it is no surprise that these nuclear energy stocks have come back to earth.

Differences in business maturity

Constellation Energy and Vistra are relatively mature businesses with reliable contracts for their nuclear energy facilities. On the other end of the business spectrum are start-ups like Oklo and NuScale Power.

These are two stocks trying to disrupt the status quo in nuclear energy with small modular reactors ( SMR s), which are theoretically expected to make it easier to scale up power production. However, in the nuclear energy business, things move rather slowly. NuScale Power has an SMR design approved by federal regulators, but it has failed to win any meaningful contracts. Oklo does not even have an approved design. Even if contracts were started, it would take many years for reactors to come online.