BofA lowered the firm's price target on Constellation Energy ( CEG ) to $366 from $380 and keeps a Buy rating on the shares. Constellation and Vistra ( VST ) sold off significantly on Monday in the wake of AI application DeepSeek purportedly having lower cost and higher efficiency than other large scale, more expensive AI models, notes the analyst, who believes that this selloff was "an overreaction to this news." Data center demand is likely to continue over the intermediate term, but the longer term has "a lower probability of the mega growth bull case," and there is a slightly higher downside risk to efficiency gains sooner than the firm had anticipated, for which the firm adjusted its valuations of the pair, the analyst noted.