Turbulence in U.S. markets spreads to rest of world

While U.S. stocks made gains on Tuesday, shocks from Monday's sell-off reverberated in markets around the globe.

On Tuesday, the Financial Times Stock Exchange 100 Index (FTSE 100) in London fell 2.6%, while the Nikkei 225 Index in Japan and the Hang Seng Index in Hong Kong each dropped about 5%. ...