October Market Review 2026
Global equity markets fell 2.5% in October, their weakest month since March, as a sharp sell-off in technology shares erased almost all of the gains made in August and September. Global bonds returned 0.6%, ending a run of three consecutive monthly declines, as investors sought the relative safety of government bonds. Two themes dominated: growing doubts over whether the enormous sums being spent on artificial intelligence will pay off, and a further escalation in the Middle East, which pushed Brent crude up 13.6% and European gas prices above €100 per megawatt-hour for the first time since 2022.

