Nuclear Model Portfolio Updates
11/9/25
Nuclear Portfolio Weekly Review
Week Ending November 7, 2025
Performance Summary
Nuclear sector equities faced significant headwinds during the week ending November 7, with losses concentrated in high-beta and development-stage names. Broader market volatility, uranium price softness, and sector rotation pressured portfolios across all risk tiers. The Moderate Risk portfolio experienced the steepest decline at -7.08%, while the Low Risk portfolio demonstrated superior defensive characteristics with a -1.75% drawdown.
High Risk Portfolio: -5.06%
Current Value: $95,031
The High Risk portfolio declined 5.06% as speculative microcap and pre-revenue names absorbed the brunt of sector rotation. SKBL delivered exceptional gains on SPAC-related speculation, while uranium juniors and advanced reactor developers faced sharp selloffs.
Key Developments:
Skyline Builders (SKBL) surged 29% on SPAC merger momentum and renewed deal speculation, serving as the lone bright spot.
Lightbridge (LTBR) collapsed 21.4%, pressured by continued cash burn concerns and limited near-term commercialization visibility.
Oklo (OKLO) fell 17.5% as profit-taking accelerated following recent speculative gains; pre-revenue valuation multiples compressed amid broader risk-off sentiment.
Nano Nuclear (NNE) declined 10.2% despite maintaining strong balance sheet; microcap beta remains elevated.
Uranium juniors (UROY, NXE) held up relatively well as physical uranium pricing stabilized near $77/lb.
Moderate Risk Portfolio: -7.08%
Current Value: $93,107
The Moderate Risk portfolio underperformed, driven by steep losses in nuclear fuel and SMR exposures. Centrus and NuScale faced intense selling pressure, while Bloom Energy provided critical upside ballast.
Key Developments:
Bloom Energy (BE) rallied 24.3% post-earnings on strong fuel cell order momentum and improved margin guidance.
Cameco (CCJ) gained 6.4%, supported by long-term contracting headlines and institutional accumulation.
NuScale (SMR) plunged 21.7% following delays in key project timelines and financing uncertainty around the Darlington SMR deployment.
Centrus (LEU) declined 18.6% on near-term enrichment capacity concerns and uranium price softness.
Uranium miners (UUUU, DNN, UEC) fell 8-16% as physical uranium prices drifted lower and speculative capital rotated out of juniors.
Low Risk Portfolio: -1.75%
Current Value: $98,254
The Low Risk portfolio demonstrated resilience, outperforming by a wide margin. Large-cap utilities and established nuclear technology firms absorbed moderate losses, while Mirion posted double-digit gains.
Key Developments:
Mirion Technologies (MIR) advanced 10.8% on contract wins and resilient services revenue.
Cameco (CCJ) outperformed again, benefiting from continued long-term uranium supply deal announcements.
Constellation Energy (CEG) fell 8.8% on power price volatility and short-term margin compression.
Vistra (VST) declined 4.5% alongside broader utility weakness; regulatory uncertainty weighed on sentiment.
Curtiss-Wright (CW) remained flat, demonstrating stability in aerospace/defense nuclear applications.
Sector Themes & Catalysts
