COLL - Collateral Loans in Settlement Web
The Collateral Loan Service Menu allows DTC participants to pledge securities as collateral for a loan or for other purposes, as well as to request the release of pledged securities.
To learn about Collateral Loans Services refer to the Settlement Web at this link: https://dtcclearning.com/helpfiles_secure/settlement/settlement_web/Content/Topics/settlement_web/collat_loan/About_Collateral_Loans.htm