(h)
Except as provided in subsection (b) of this section, the trustee shall distribute customer property ratably to customers on the basis and to the extent of such customers’ allowed net equity claims, and in priority to all other claims, except claims of a kind specified in section
507
(a)(2) of this title that are attributable to the administration of customer property. Such distribution shall be in the form of—
(2)
the return or transfer, under subsection (c) or (d) of this section, of specifically identifiable customer securities, property, or commodity contracts; or
(3)
payment of margin calls under subsection (a) of this section.
Notwithstanding any other provision of this subsection, a customer net equity claim based on a proprietary account, as defined by Commission rule, regulation, or order, may not be paid either in whole or in part, directly or indirectly, out of customer property unless all other customer net equity claims have been paid in full.