NEW YORK (AP) -- Stocks that moved substantially or traded heavily Monday:
Apple Inc., down $2.97 to $218.33
The company said that tariffs on Chinese imports would lead to higher prices for the Apple Watch and other products.
Alibaba Group Holding Ltd., down $6.01 to $156.36
The Chinese e-commerce company said founder Jack Ma will step down as chairman in September 2019.
CBS Corp., down 86 cents to $55.20
The media company said CEO Les Moonves will depart after new allegations of sexual misconduct.
Science Applications International Corp., down $8.21 to $81.65
The information technology company said it will buy government contractor Engility Holdings for $2.5 billion in stock.
United Rentals Inc., up $7.69 to $159.99
The equipment rental company will buy BlueLine Rental for $2.1 billion in cash.
General Electric Co., up 11 cents to $12.51
Industrial companies continued to rise as the dollar weakened and investors hoped for signs of progress in trade talks.
Greenbrier Cos., up $2.15 to $58.75
Smaller and more U.S.-focused companies did better than the rest of the market Monday.
HCA Healthcare Inc., down 97 cents to $131.50
The hospital operator said CEO R. Milton Johnson will retire at the end of the year.