NuScale Power (NYSE: SMR) stock, a start-up manufacturer of small modular (nuclear) power reactors, surged 12.9% through 12:40 p.m. ET Friday -- apparently on no good news at all.

Actually, the opposite: Reports today say a technical fault at the Olkiluoto Nuclear Power Plant in Finland caused one of the site's three units, "OL2," to shut down temporarily today.

Image source: Getty Images.

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Source Fool.com