Piper Sandler analyst Dimple Gosai initiated coverage on advanced nuclear energy stocks, assigning an "Overweight" rating and a $55 price target to Oklo, while giving X-Energy an "Underweight" rating and a $9 price target. Following this, Oklo (OKLO) shares fell 5% to $40.50, NuScale Power (SMR) dropped 5% to $10.32, and X-Energy (XE) declined 5% to $16.42. The market primarily focused on the "Underweight" rating for X-Energy, which put pressure on the entire nuclear energy sector.