Berkshire Hathaway recently initiated a position in UnitedHealth Group stock. Shares of UnitedHealth have plummeted by roughly 40% this year. Despite some turbulence, its business boasts several attributes that Buffett seeks.

Tom Gayner, CEO of Markel Group, spoke about how the holding company has studied Berkshire Hathaway's playbook, Markel's stock performance, and much more.

Berkshire Hathaway’s portfolio added six new stocks, including the three new secret stocks. Warren Buffett was a net seller of stocks for the eleventh straight quarter.

Buffett’s upcoming retirement has weighed down Berkshire's stock performance. However, the company's core businesses are healthy, and Buffett's successor has plenty of experience. Its business is built to keep growing for decades to come.

Berkshire Hathaway increased its Chevron stake in Q2 while trimming other top holdings, signaling strong institutional confidence. Learn more on CVX stock here.

Berkshire Hathaway fuels long-term growth through transformative deals and bolt-on acquisitions that expand earnings, float and diversification.