Stock market volatility deepens as Wall Street faces rollercoaster opening

The US’s S&P 500 had major swings on Monday.

By contributor Anna Wise, PA Business Reporter
Published
Last updated
A trader on the floor of the New York Stock Exchange
Wall Street stocks have lurched back and forth in a roller-coaster session for global financial markets (Richard Drew/AP)

Wall Street stocks have lurched back and forth in a roller-coaster session for global financial markets, as volatility deepened while traders are on edge over how US tariff plans will develop.

The US’s S&P 500 had major swings on Monday.

The index shot down by as much as 4% shortly after New York markets opened, before swinging sharply higher, peaking at about 2%, not long after.

The index then returned to negative territory, as the value slid by about 2% about an hour after opening.

The movements were reverberating across European markets – losses on the UK’s FTSE 100 briefly eased, before sharpening again in line with the US’s benchmark index.

A graph showing the FTSE 100 during 2025
(PA Graphics)