The Diamond Hill Long-Short Fund Class A (DIAMX) is a mutual fund that seeks to provide investors with long-term capital appreciation by investing in a combination of long and short positions in equity securities. This fund utilizes a bottom-up, fundamental research approach to identify undervalued and overvalued companies, with the goal of generating positive returns in both rising and falling markets. The fund is managed by Diamond Hill Capital Management, a respected investment firm with a history of successful stock picking. Investors in this fund can expect a diversified portfolio of both long and short positions, providing potential for growth while also managing risk.