Fiat Chrysler Automobiles

Fiat Chrysler is shaken without visionary CEO behind wheel

Fiat Chrysler shares were volatile Monday as investors expressed worry about the exit of ailing CEO Sergio Marchionne, whose driven and creative management style has been the company's fortune.

Shares in the Italian-American carmaker closed down 1.5 percent after a harder 4 percent opening tumble in the first trading since Marchionne's grave health condition was disclosed over the weekend. Trading was volatile, particularly after news that the head of the big European operations, who had been considered one of Marchionne's potential successors, was quitting. Ferrari, where Marchionne was also replaced at the helm, closed down about 5 percent.

The Fiat Chrysler board on...