Shares of Berkshire Hathaway Inc. Cl B dropped 0.23% to $464.80 Friday, on what proved to be an all-around positive trading session for the stock market, with the S&P 500 Index rising 0.40% to 5,864.67 and the Dow Jones Industrial Average rising 0.

Berkshire Hathaway is arguably always Buffett's favorite stock. But another stock commands a strong second place.

Though Warren Buffett's firm missed out on some gains, Berkshire's Apple trade will likely go down as one of its best in history.