In United States tax law, a section 475(f) fund is a hedge fund that elects to mark to market all its unrealized gains and losses, as allowed by the provisions of section 475(f) of the Internal Revenue Code. This can lead to a much faster recognition of gain, but also lessens the tax fees due to the high cost of performing the appropriate analysis for a non-475 fund.
A 130–30 fund or a ratio up to 150/50 is a type of collective investment vehicle, often a type of specialty mutual fund, but which allows the fund manager simultaneously to hold both long and short positions on different equities in the fund. Traditionally, mutual funds were long-only investments. 130–30 funds are a fast-growing segment of the financial industry; they should be available both as traditional mutual funds, and as exchange-traded funds (ETFs). While this type of investment has existed for a while in the hedge fund industry, its availability for retail investors is relatively new.
A 130–30 fund is considered a long-short equity fund, meaning it goes both long and short at the same time. The "130" portion stands for 130% exposure to its long portfolio and the "30" portion stands for 30% exposure to its short portfolio. The structure usually ranges from 120–20 up to 150–50 with 130–30 being the most popular and is limited to 150/50 because of Reg T limiting the short side to 50%.