Berkshire Hathaway shares reached an eight-month high this week

Berkshire Hathaway’s stock (NYSE: BRK.A, BRK.B) is rallying today because the company still trails the wider market, trades below last year’s richer valuation, holds almost $400 billion in cash, and may have bought back billions of dollars of its own shares. Barron’s reported that the rally carried the conglomerate to an eight-month high this week....