английский => русский Бизнес/Финансы Финансы (в целом) banking, securities

"совместный депозитарий"? - гуглится совсем слабо...
"совместный депозитный центр"? - совсем не гуглится...
"центр совместных депозитов" - тоже по нулям...

http://www.allianceinvest.com/downloads/account.pdf
b) Unless the Owner expressly required that his securities, futures/options contracts precious metals and coins be kept separately, and pays the additional cost involved, Alliance is authorized to place them in the general deposit of Alliance, of a third party depositary, or indeed to remit them to a ***collective deposit center***.

http://freerealtime.brand.edgar-online.com/DisplayFilingInfo...
b) The depositor expressly agrees that the Bank may deposit all or part of the securities and valuables placed in its custody in a collective deposit, either at the Bank itself or at another bank or in a ***collective deposit centre***. Individual depositors will therefore be entitled to a co-ownership share in the total collective deposit proportional to their individual holdings.

c) Unless otherwise agreed, the Bank shall arrange for any securities or valuables located abroad to be held in safekeeping and administered by a correspondent bank or ***collective deposit centre*** of its choice in its own name, but for the account of and at the risk of the depositor, in accordance with local custom and procedure.