Unlisted funds refer to securities investment funds whose fund shares cannot be listed and traded on the stock exchange. Including realizable funds and non-negotiable funds. A realizable fund refers to a securities investment fund, such as an open-end fund, which can recover its investment through "redemption" although the fund is not listed on the stock exchange. Non-circulating funds refer to securities investment funds, such as some private equity funds, which can neither be publicly traded on the stock exchange nor redeemed to recover their investment.