UK stocks jump on US government reopening optimism; Diageo surges

Group 1 - UK stocks increased by 1% on Monday, reflecting a positive sentiment in global markets [1] - The optimism in the market is attributed to indications that a significant U.S. government shutdown may be coming to an end [1] - Diageo's stock surged following the appointment of a former executive, signaling potential growth and strategic changes within the company [1]