Global markets

Daily percentage change, last 7 days.

Chinese shares

Leading recent losses were Chinese shares, posting their worst performance since the depths of the global financial crisis in 2007 and wiping out what was left of 2015's gains.

Global slump

Key MSCI indexes have fallen sharply in recent months, led by losses in Asian markets.

Volatility

The U.S. stock market had its most volatile day since the start of the year, with a key measure of volatility reaching a level not seen since 2008, during the global financial crisis.

Brent crude

Worries about weaker demand from China added to global supply concerns.

Copper

Copper, a barometer of global industrial demand, hit a six-year low.