Northrop Grumman stock tumbles as stealth-bomber program gets off to slow start

Northrop Grumman Corp.’s stock fell by 6% Thursday after the defense contractor posted a fourth-quarter loss on costs associated with the production launch of its B-21 stealth bomber.

Northrop Grumman stock tumbles as stealth-bomber program gets off to slow start
Northrop Grumman Corp.’s stock fell by 6% Thursday after the defense contractor posted a fourth-quarter loss on costs associated with the production launch of its B-21 stealth bomber.