Safekeeping and transaction securities accounts that may be segregated rather than commingled with the proprietary belongings from the custodian Under these agreements, securities are held for the benefit of the clients, plus the sub-custodian is generally required to segregate securities (but not cash) within the sub-custodian’s individual proprietary belongings. https://financefeeds.com/cme-group-to-launch-bloomberg-commodity-subindex-futures/