U.S. stocks suffered broad declines on Friday, with the Dow industrials posting their biggest slide in a week, amid disappointing news from companies such as Visa Inc. V -3.58% and Amazon.com Inc. AMZN -9.65% The Dow Jones Industrial Average fell 123.23 points, or 0.7%, at 16960.57, its biggest percentage decline since July 17. A 3.6% decline in Visa's stock—which has an outsize impact because of the average's construction methodology—accounted for more than a third of the decline. The S&P 500 index lost 9.64 points, or 0.5%, to 1978.34, retreating from Thursday's record close. The Nasdaq Composite Index dropped 22.54 points, or 0.5%, to 4449.56. Friday's decline left the broad S&P 500 within 0.1% of where it started the week, reflecting investors' ambivalence as corporate profits continue to grow but stocks' march into record territory has left valuations on the pricier side of historical averages. The Dow fell 0.8% on a weekly basis, while the Russell 2000 index of small companies' shares posted its third-straight weekly decline. Gold futures rose 1% to $1,303.10 an ounce. Crude-oil futures rose less than 0.1% to $102.09 a barrel.
