MINT is an actively-managed fund that seeks higher current income than the average money market mutual fund by holding a hodgepodge of high-quality and ultra-short term USD-denominated debt issued by domestic or foreign issuers. The fund, which aims to keep the average duration under 1 year, may also have a dollar-weighted average up to 3 years. Aside from US-based debt, investors are also exposed to US dollar-denominated securities from developed countries and emerging markets. The fund quickly amassed sizable assets, making it one of the most successful actively managed ETFs ever launched.