Ceres Power is trading at £417.80, up +7.51% at the September 25 close, with no clear catalyst established for the rebound. - Supplied price context shows no newer session for September 28. - September 23 interim results showed revenue up 8% to £22.8 million, while gross margin fell to 71% from 79%. - Jefferies reiterated a Buy rating and 920p target, noting a potential manufacturing-partner deal by year-end; reporting does not link this directly to the share move.