(40 ILCS 5/18-160) (from Ch. 108 1/2, par. 18-160)
    Sec. 18-160. Undivided interests.
    The assets of the system shall be invested as one fund, and no person, group of persons, or entity shall have any right in any specific security or property, or in any item of cash, other than an undivided interest in the whole.
(Source: Laws 1963, p. 161.)