A free-float methodology is a system by which the market capitalization of an index's companies is determined.

Depreciation is a non-cash accounting expense that doesn’t involve cash flow, but it is a factor that can impact all areas of a company’s financial performance.

Dan Lamothe joined The Washington Post in 2014 to cover the U.S. military. He has written about the Armed Forces since 2008, traveling extensively, embedding with five branches of service and ...