NEW YORK -- Stocks that traded heavily or had substantial price changes Thursday:

       Ford Motor Co., up $1.35 to $16.86.

       The auto maker gave investors an encouraging financial forecast and reinstated its quarterly dividend.

       Twilio Inc., down $60.73 to $284.93.

       The communications software company gave investors a disappointing fourth-quarter earnings forecast.

       KLA Corp., up $14.77 to $355.34.

       The maker of equipment for manufacturing semiconductors beat Wall Street's fiscal first-quarter profit forecasts.

       eBay Inc., down $5.25 to $72.41.

       The online marketplace gave investors a disappointing financial forecast.

       Align Technology Inc., up $27.41 to $631.80.

       The maker of the Invisalign tooth-straightening system reported strong third-quarter profit and revenue.

       Flex Inc., down $1.14 to $17.14.

       The electronics designer and manufacturer trimmed its revenue forecast for the year.

       Wolfspeed Inc., up $30.17 to $121.04.

       The maker of energy-efficient lighting beat analysts' fiscal first-quarter earnings and revenue forecasts.

       A.O. Smith Corp., up $6.72 to $70.69.

       The maker of water heaters and boilers reported surprisingly strong third-quarter financial results.