Stapled stock.
(e) Stapled stock. If a United States person that would be a shareholder (within the meaning of 1.12911(b)(7) and (b)(8)) of a stapled entity (as defined in section 269B(c)(2)) owns stock in all entities that are stapled entities with respect to each other and the shares are stapled interests (as defined in section 269B(c)(3)), the United States person's interests in the stapled entities are treated as an interest in a single entity that holds all of the assets of the stapled entities, conducts all of the activities of the stapled entities, and derives all of the income of the stapled entities for all purposes of the PFIC regime.