Hi, You can use the party and account structures to represent the fund and the account of the fund. The fund would be represented using the party element while the fund account would be represented using the account element. See snippet below. Within the account structure you can express who is the beneficiary of the account or who the party is that serves that account. … IMGRUS6S INVEST MGR BROKUS33 BROKER 33 CUSTUS3T Custodian FUND100 98765 Hope this helps. Regards, Marc http://www.tradeheader.com