Hot Inflation Sinks Oklo and NuScale Stocks

Pre-revenue small modular reactor shares are trading on rate expectations, not yet on commercial power.

Updated on Nov. 1, 2026 in Nuclear

Hot Inflation Sinks Oklo and NuScale Stocks

Live Poll

Do you think now is a good time to invest in your savings?

Oklo and NuScale Power each fell about 15% in the week through October 27, 2026, as a hot September inflation report pushed Treasury yields higher. Both are pre-revenue or early-revenue nuclear stocks, and their shares are trading on expectations rather than current cash flow.

Why it matters

Higher Treasury yields raise the discount rate applied to distant profits, which hits valuations hardest for companies like Oklo that have no revenue and aren't expected to generate meaningful cash for years. The selloff shows how closely small modular reactor stocks are tied to interest-rate expectations, not just to their nuclear milestones.

Oklo's Groves test reactor reached first criticality on August 5, 2026, and the 10-year Treasury yield rose to about 5.3% after the CPI release. The data points that drove the selloff are macroeconomic rather than technical, so the reactor milestone did little to offset the rate-driven repricing.

The players

Oklo

Advanced nuclear developer building small fission reactors and fuel-recycling facilities, with its Groves test reactor and Groves 2 Forge isotope facility in Texas.

NuScale Power

Developer of small modular reactor designs and one of the few nuclear companies listed on U.S. markets focused on factory-built reactor modules.

Department of Energy

U.S. federal agency that selected Oklo's Groves 2 Forge facility for its Nuclear Energy Launch Pad program and oversees national nuclear research.

Barclays

Global investment bank whose analysts maintain a bullish price target on Oklo, implying 117% upside.

Idaho National Laboratory

Federal nuclear research facility that hosts the National Reactor Innovation Center program supporting advanced reactor development.

The details

Oklo and NuScale are valued largely on the future output of small modular reactors, which are compact fission plants designed to be built in factories and shipped to sites. When investors demand a higher return on money, distant profits are discounted more heavily, so companies whose earnings lie years ahead lose value even if their technology progresses. A hot inflation print lifted Treasury yields by roughly 9 to 10 basis points (hundredths of a percentage point) in a single day, which is why these shares moved so sharply.

Oklo's Groves test reactor reached first criticality on August 5, 2026.
On October 13, 2026, the Department of Energy selected Oklo's Groves 2 Forge isotope facility for its Nuclear Energy Launch Pad program.
Oklo and NuScale each fell about 15% in the week through October 27, 2026.
Oklo is expected to report Q3 earnings in early-to-mid November 2026.

The Tech Race

Oklo's Groves test reactor reaching criticality places it among early advanced-reactor developers pursuing commercial deployment, alongside NuScale's small modular reactor designs. The field's race is now being judged partly on capital-market conditions as much as on reactor milestones.

For investors holding Oklo or NuScale, the week's drop reflects valuation sensitivity to Treasury yields rather than a change in product availability, and neither company is offering commercial power today. Ordinary readers will not see a direct effect until these reactor projects reach operation, and no commercial timeline has been confirmed.

The takeaway

Watch Oklo's Q3 earnings in early-to-mid November 2026 and the next CPI and Fed decisions, since rate expectations are currently driving nuclear stock prices as much as technical progress. A sustained move in the 10-year Treasury yield from its current level near 5.3% will be a clear signal of whether this valuation pressure persists.

What happens next

Oklo is expected to report its Q3 earnings in early-to-mid November 2026, with analysts projecting a loss of roughly $0.29 per share. That report will be the next scheduled test of how the company's pre-revenue model is holding up under higher rates.