Rolls-Royce shares closed at 1,260p in London Friday, down 0.25% on the day and 5.8% for the week, after hitting a 52-week high of 1,420p. The company reported its Trent XWB-84 engine cut fuel use by 1.8%, exceeding targets. Rolls-Royce also announced a deal to supply four battery storage sites in Latvia for Sunly, with the first set to open in early 2027. Market value stands near £104.5 billion.