The NAVigator looks at a unique offering today as Christian Munafo of SP Investment Management discusses his firm's Sharespost 100 Fund, an actively managed, continuously offered, closed-end interval fund that buys late-stage venture-backed private companies, a part of the alternative-investment world normally reserved for high net worth individuals and venture capital firms. Munafo discusses how the fund looks for unicorns, the unusual company that can move from start-up to billion-dollar private company on the way to someday going public.