Top UK Stocks to Buy Today (24 December 2025): Best FTSE 100 and FTSE 250 Shares to Watch on the London Stock Exchange

UK stocks are trading in a holiday-shortened Christmas Eve session, with the London Stock Exchange set to close early and remain shut through Thursday and Friday for the Christmas break. Fintel Thin liquidity can exaggerate moves—so today’s best “stocks to buy” ideas are less about chasing intraday spikes and more about identifying fresh catalysts that can carry into early 2026.