customer
(B) Included persons The term “customer” includes— (i) any person who has deposited cash with the debtor for the purpose of purchasing securities; (ii) any person who has a claim against the debtor for cash, securities, futures contracts, or options on futures contracts received, acquired, or held in a portfolio margining account carried as a securities account pursuant to a portfolio margining program approved by the Commission; and (iii) any person who has a claim against the debtor arising out of sales or conversions of such securities.