The document discusses various types of Islamic investment funds that have emerged globally, including equity, sukuk, money market, real estate, and private equity funds. It notes that as of 2012, over 750 Islamic funds globally managed $60 billion in assets, with the most popular being equity funds. The document outlines the characteristics and examples of different Islamic fund types and concludes that Islamic funds provide socially responsible and ethical investment opportunities for both Muslim and non-Muslim investors.