NEW YORK -- Stocks that are trading heavily or have substantial price changes on Friday:

       Scholastic Corp. (SCHL), up $4.48 to $44.26.

       The publishing, education and media company beat analysts' fiscal fourth-quarter earnings forecasts.

       Autoliv Inc. (ALV), up $10.04 to $103.31.

       The maker of automotive safety systems reported strong second-quarter financial results.

       Roper Technologies Inc. (ROP), up $18.23 to $499.82.

       The industrial equipment maker beat Wall Street's second-quarter profit and revenue forecasts.

       American Express Co. (AXP), down $6.03 to $171.08.

       The credit card issuer is setting aside more money for possible defaults on payments.

       CSX Corp. (CSX), down $1.19 to $32.52.

       The railroad’s second-quarter revenue fell short of analysts’ forecasts.

       Interpublic Group of Cos. (IPG), down $4.66 to $33.26.

       The marketing and advertising company's second-quarter revenue fell short of Wall Street forecasts.

       Sensient Technologies Corp. (SXT), down $3.76 to $65.61.

       The maker of colors, flavors and fragrances reported disappointing second-quarter financial results.

       PPG Industries Inc. (PPG), up $1.02 to $150.74.

       The paint and coatings maker raised its profit forecast for the year.