The possibility of a slowdown in the US economy weighed on stock investors on Tuesday after yields on 10-year US Treasuries fell briefly below those on two-year notes, a rare event that in the past has often heralded a recession.

Yields on 10-year US Treasuries briefly fell below those on two-year notes on Tuesday for the first time in five years – a rare event that in the past has often heralded a recession.