NuScale Power Stock Slides on UBS Downgrade to 'Sell'

Shares of NuScale Power (NYSE: SMR) fell 3.3% in pre-market trading after UBS downgraded the small modular reactor (SMR) developer to Sell from a previous Neutral rating. The investment bank also cut its price target on the stock to $6.00 from $10.00, signaling significant concern over the company's commercial outlook.

Analyst Cites Delays and Cash Burn

In its note, UBS outlined several key challenges facing NuScale, prompting the more bearish stance. The firm's analysts argued that the company faces a construction timeline of five or more years, while competitors are already moving closer to the building phase.

Key concerns highlighted by UBS include:

• A lack of firm customer commitments to anchor future revenue.
• An assumption that only one NuScale project will break ground by 2028.
• A projection of approximately $700 million in cumulative cash burn between 2026 and 2028.

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These concerns compound pressures from NuScale's second-quarter 2026 results, which showed revenue falling to just $75,000 from $8.1 million in the same period a year prior, according to the source.

Market Impact and Context

The downgrade marks a swift reversal in momentum for NuScale's stock, which had surged in the preceding three sessions following announcements on manufacturing and AI-related milestones. The pre-market decline to $9.87 per share was specific to the company, as the broader S&P 500 and Nasdaq indices were trading modestly higher.

Analysts noted that NuScale's elevated valuation relative to its pre-revenue status makes it particularly vulnerable to negative ratings. The UBS downgrade, combined with the absence of binding commercial orders, prompted investors to reassess the stock's risk-reward profile.