2.1.4.6.1 Open Contractual Commitments
When securities are borrowed, collateral is usually required. If changes in the price of the borrowed security require more collateral to be deposited, the lending party may demand the difference between the market price and the contract price. If the market value changes again to permit a refund of any portion of the deposit, refunds must be made on demand.
All demands for deposits or refunds must be made in writing and delivered at the office of the other party, and such demands must be complied