DETROIT—General Motors Co. on Tuesday reaffirmed its full-year profit outlook on an expected surge in demand and said it was curbing spending and hiring ahead of a potential economic slowdown, but a 40 percent drop in its quarterly net income disappointed, sending shares lower.
The Detroit automaker’s net income fell 40 percent in the second quarter from a year earlier due to supply-chain snarls, including a global semiconductor chip shortage that hit hardest in June. The company’s shares fell 3.5 percent in midmorning trading.





