US stocks move in sync during biggest selloff in more than a year

US stocks are moving in sync again, after a period when the market had become increasingly divided.

The story concerns the US equity market, or shares traded in the United States.

Stocks moving in sync means they are moving in the same direction.

This rare moment of unity has arrived during a sharp downturn.

The market is seeing its biggest selloff in more than a year.

So, stocks moving together does not mean they are rising; in this case, the shared move coincides with a steep decline.