Nuscale Power is trading 4.92% down at $5.38 after Barclays downgraded it from Equal Weight to Underweight and cut its price target below the prior close. - Barclays linked its call to the lack of a binding customer order, limited commercial revenue, and long commercialization timelines. - No new company announcement was identified for October 20, 2026; available coverage explicitly connected the downgrade with the morning sell-off.