Private equity is a broad term that commonly refers to any type of equity investment in an asset in which the equity is not freely tradeable on a public stock market. More accurately, private equity refers to the manner in which the funds have been raised, namely on the private markets, as opposed to the public markets. Private equity firms were commonly misknown to invest in assets which were not in the public market. As we now know, larger private equity firms such as KKR, Blackstone, etc. invest in companies listed on public exchanges and take them private. Passive institutional investors may invest in private equity funds, which are in turn used by private equity firms for investment in target companies. Categories of private equity investment include leveraged buyout, venture capital, growth capital, angel investing, mezzanine capital and others. Private equity funds typically control management of the companies in which they invest, and often bring in new management teams that focus on making the company more valuable.