United and American Science jump, Werner and Impax slump
NEW YORK (AP) - Stocks that moved substantially or traded heavily on Tuesday:
United Continental Holdings Inc., up $1.46 to $44.86
The parent of United Airlines detailed plans to increase revenue, control costs and improve reliability in a bid to win back disgruntled travelers.
American Science & Engineering Inc., up $4.54 to $36.88
The X-ray inspection systems maker agreed to be acquired by airport security and full-body scanner manufacturer OSI Systems.
Canadian Pacific Railway Ltd., down $3.09 to $124.34
The railroad said it expects its profit and revenue to fall in the second quarter because of reduced commodity shipments.
Impax Laboratories Inc., down $3.66 to $28.31
The generic drugmaker said it will pay $586 million to buy drugs owned by Allergan and Teva Pharmaceutical Industries.
Werner Enterprises Inc., down $2.37 to $22.31
The transportation and logistics company forecast disappointing second-quarter results due to sluggish freight market conditions.
Imperva Inc., up $5.02 to $45.46
Elliott Capital, activist investor Paul Singer's fund, disclosed a stake in data security software company.
CarMax Inc., down $2.49 to $48.14
The used-car dealership reported disappointing first-quarter results as its costs increased and sales fell short of Wall Street estimates.
AT&T Inc., up 29 cents to $41.07
Phone company stocks traded higher Tuesday as investors got a bit more cautious following the market's jump a day ago.