ECONOMY

A broad decline in US stocks following a slump in Europe and weak corporate earnings reports

FILE-This Oct. 29, 2014 file photo shows the Wall Street subway stop on Broadway, in New York's Financial District.  U.S. stocks are falling broadly in early trading on Friday, April 17, 2015,  following steep declines in Europe and some results from big U.S. companies. Nine of the 10 industry groups of the Standard and Poor’s 500 are down, led by information technology companies.  (AP Photo/Richard Drew)

FILE-This Oct. 29, 2014 file photo shows the Wall Street subway stop on Broadway, in New York's Financial District. U.S. stocks are falling broadly in early trading on Friday, April 17, 2015, following steep declines in Europe and some results from big U.S. companies. Nine of the 10 industry groups of the Standard and Poor’s 500 are down, led by information technology companies. (AP Photo/Richard Drew)  (The Associated Press)

U.S. stocks are moving lower in midday trading following steep declines in Europe and some disappointing results from big companies.

Investors are worried about Greece's shaky finances and news from China Friday that regulators would tighten rules on borrowing by investors to buy stocks following big gains this year.

In the U.S., American Express slumped 5 percent after reporting revenue that missed analysts' forecasts.

The Dow Jones industrial average slumped 249 points, or 1.4 percent, to 17,857.

The Standard & Poor's 500 lost 21 points, or 1 percent, to 2,083. The Nasdaq fell 69 points, or 1.4 percent, to 4,938.

European stocks, which have also rallied this year, fell. Germany's DAX slumped 2.6 percent. Investors piled into German government bonds, which are perceived as being safe, sending yields lower.