The FTSE 100 traded flat to lower on Monday, showing muted reaction to a volatile weekend as the US and Iran agreed to a temporary halt in hostilities ahead of upcoming peace talks. Corporate actions drove individual stock movements, with British American Tobacco shares falling over 1% after announcing a restructuring plan to cut its global workforce by roughly 20%, resulting in 5,500 job losses and 3,500 outsourced roles by year end. Conversely, BT shares advanced 1.4% following a newly secured international partnership with US telecom giant Verizon to merge their global enterprise operations. Meanwhile, broader market attention shifted toward politics as Andy Burnham prepared to deliver a speech in Manchester.