London's FTSE 100 closed lower on Wednesday for the third straight day, as investors cautiously monitored efforts to end the war in the Middle East, while Balfour Beatty soared to a record high after raising its annual forecast. The blue-chip FTSE 100 index closed 0.1% down at 10,833.15…This story appeared on finance.yahoo.com , 2026-08-12 16:09:23.