The FTSE 250 index closed higher in the last session, rising 0.95% to 23,165.34 points from its previous close of 22,947.90 points. This positive movement was primarily driven by easing UK inflation data, which reduced expectations of aggressive interest rate hikes, alongside progress in US-Iran diplomatic talks that lowered oil prices. Broader global market momentum, particularly in technology and AI stocks, also contributed to the mid-cap index's gains.