BNKD is a mutual fund that seeks to provide investors with a -3x inverse leveraged exposure to the U.S. Big Banks Index. This means that the fund aims to deliver three times the opposite daily return of the index, making it a high-risk, high-reward investment option. The fund is designed for investors who are looking to profit from a potential decline in the U.S. big banks sector. It is important to note that this fund is an exchange-traded note (ETN), which means it is a debt instrument issued by a financial institution and is subject to credit risk. Investors should carefully consider their risk tolerance and investment goals before investing in BNKD.