(a) A bank or trust company authorized to act in a fiduciary capacity or in the capacity of agent with investment discretion, and acting in such capacity, may invest funds held by it for investment in fractional undivided interests in a common fund composed exclusively of property permitted for investment by the terms of § 3302 of this title and of cash, if such common fund shall have been created and is managed by any bank or trust company authorized to act in a fiduciary capacity, as trustee under a written plan, an original copy of which, executed by such bank or trust company, has been filed and is recorded in the Office of the Register in Chancery of the county in which the main office of such bank or trust company is located. Under such plan it shall not be permitted that any such fractional interests shall at any time be owned by other than a bank or trust company as fiduciary under will, under agreement or for a person with a mental condition or as guardian of a minor or of the property of a person who is elderly or impaired or a person with a mental condition or physical disability or as executor or administrator or as custodian pursuant to Chapter 45 of this title or as agent with investment discretion.
(b) At least once each 3 months, as of a predetermined date, a bank or trust company administering a common fund shall determine the fair value of the assets in the common fund. No fractional interest in the common fund shall be acquired or redeemed except on the basis of such valuation and as of such valuation date. A fractional interest in such common fund may only be acquired by payment:
(1) In cash; or
(2) In property other than cash, provided that such property other than cash is a permissible investment under the terms of § 3302 of this title and under the terms of the plan of a common fund.
If a fractional interest is acquired with property other than cash, such property shall be valued for the purposes of the acquisition in the same manner as assets are valued when held in the common fund and the purchaser shall bear all costs of the transfer to the common fund of title to such property. A fractional interest in such common fund may be redeemed by payment of an amount in cash, or ratably in kind, or partly in cash and partly in kind, equal to its proportionate part of the fair value of the common fund.
A reasonable period following each such predetermined date may be used to make the computations necessary to determine the value of the common fund and of the participations therein.
(c) Unless a bank or trust company making an investment for an account in a common fund shall find that the investments of the common fund as a whole are ones in which the funds of such account might not properly be invested at the time, the investment in such common fund shall not be improper.
(d) The bank or trust company may charge a fee or commission to the common fund for its management and receive fees or commissions from participating accounts which may be invested in a common fund in addition to those it would be entitled to receive if such accounts were otherwise invested.