The iShares Developed Real Estate Index Fund - Class K (BKRDX) is a mutual fund that focuses on investing in real estate companies in developed markets around the world. This fund aims to provide investors with exposure to a diverse range of real estate assets, including commercial, residential, and industrial properties. With a focus on developed markets, this fund offers a potentially stable and reliable investment option for those looking to diversify their portfolio with real estate holdings. The Class K shares of this fund may be particularly appealing to institutional investors due to their lower expense ratio and potential for higher returns.