Berkshire’s Class A rally topped 19%, and the records kept coming

Berkshire logged four straight record-high closes, and its Class A shares gained 19.1% in the rally that began October 1. The S&P 500 fell 1.2% over the comparison period. Berkshire beat a rebounding benchmark, too: both share classes gained 3.9% for the week, versus the index’s 2.5%.