Type of unit in a unit trust where the income is reinvested automatically, thereby increasing the price of the unit.
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accumulation unit UK US noun [C] FINANCE
► a share in an investment trust (= a company that invests in shares of other companies), the profit from which is put back into the investment trust instead of being paid to the shareholder: »
Normal income units pay out the dividend or interest earned to investors on a regular basis, but accumulation units do not.
► a share in a variable annuity (= a type of investment that is sold by an insurance company and makes regular payments to the investor)
Financial and business terms. 2012.