Berkshire shares rise on surge in operating earnings, but questions linger about cash

The conglomerate's operating profit — earnings from the company's wholly-owned businesses — skyrocketed 71% to $14.5 billion in the fourth quarter.

Berkshire shares rise on surge in operating earnings, but questions linger about cash
The conglomerate's operating profit — earnings from the company's wholly-owned businesses — skyrocketed 71% to $14.5 billion in the fourth quarter.