FTSE 100 falls as HSBC weighs, budget caution persists

(Updates to market close) Oct 27 - Britain's FTSE 100 underperformed European peers ​on Tuesday, weighed down by HSBC ​after it missed quarterly revenue estimates, ‌while investors ​stayed cautious ahead of the government's budget.

The blue-chip FTSE 100 index fell 0.75% to 10,686.54 points, its biggest one-day decline in about ‌a month. The midcap FTSE 250 gained 0.93%.