Which investment company became part of the S&P 500 in 2010 and is led by Warren Buffett?

Berkshire Hathaway became part of the S&P 500 in 2010 and is led by Warren Buffett.

Berkshire Hathaway grew from a struggling textile manufacturer into a diversified holding company. Warren Buffett began buying shares in the 1960s and ultimately shifted the business toward insurance, investments, and ownership of operating companies. Its insurance operations, especially GEICO and reinsurance businesses, provide capital that Berkshire can invest.

The company owns or has held interests in businesses such as BNSF Railway, Berkshire Hathaway Energy, and numerous consumer brands. Berkshire’s unusual structure and large portfolio have made it a major public company, although its high share price and distinctive governance can make it look different from a typical technology stock. Buffett has served as chairman and chief executive for decades.