20 C.F.R. § 416.1207
(e) Receipts from the sale, exchange, or replacement of a resource. If an individual sells, exchanges or replaces a resource, the receipts are not income. They are still considered to be a resource. This rule includes resources that have never been counted as such because they were sold, exchanged or replaced in the month in which they were received. See § 416.1246 for the rule on resources disposed of for less than fair market value (including those disposed of during the month of receipt).
Example:Miss L., a disabled individual, receives a $350 unemployment insurance benefit on January 10, 1986. The benefit is unearned income to Miss L. when she receives it. On January 14, Miss L. uses the $350 payment to purchase shares of stock. Miss L. has exchanged one item (cash) for another item (stock). The $350 payment is never counted as a resource to Miss L. because she exchanged it in the same month she received it. The stock is not income; it is a different form of a resource exchanged for the cash. Since a resource is not countable until the first moment of the month following its receipt, the stock is not a countable resource to Miss L. until February 1.
[52 FR 4283, Feb. 11, 1987]