Warren Buffett is no longer chairman of Berkshire Hathaway, having stepped down from what was his last active role at the conglomerate. The move closes out a leadership transition that has been long anticipated by investors who track the company's succession planning.

Despite the change at the top, commentary following the announcement argued the investment thesis behind Berkshire remains intact. The company's capital allocation approach and portfolio strategy were not reported to have shifted as a result of the chairmanship change.

What is unresolved is how the new leadership will handle capital deployment decisions going forward, including the size of Berkshire's cash position and its approach to acquisitions.