Completion of the Transaction Law and Legal Definition
According to 12 CFR 12.2 [Title 12 Banks and Banking; Chapter I Comptroller of the Currency, Department of the Treasury; Part 12 Recordkeeping and Confirmation Requirements for Securities Transactions], completion of the transaction means:
"(1) In the case of a customer who purchases a security through or from a national bank, except as provided in paragraph (c)(2) of this section, the time when the customer pays the bank any part of the purchase price, or, if payment is made by a bookkeeping entry, the time when the bank makes the bookkeeping entry for any part of the purchase price;
(2) In the case of a customer who purchases a security through or from a national bank and who makes payment for the security prior to the time when payment is requested or notification is given that payment is due, the time when the bank delivers the security to or into the account of the customer;
(3) In the case of a customer who sells a security through or to a national bank, except as provided in paragraph (c)(4) of this section, if the security is not in the custody of the bank at the time of sale, the time when the security is delivered to the bank, and if the security is in the custody of the bank at the time of sale, the time when the bank transfers the security from the account of the customer;
(4) In the case of a customer who sells a security through or to a national bank and who delivers the security to the bank prior to the time when delivery is requested or notification is given that delivery is due, the time when the bank makes payment to or into the account of the customer."
