Glossary

Every term between trade and settlement.

Don't Know (DK) Notice

A DK is a counterparty's declaration that it cannot recognize or confirm an alleged trade — a data discrepancy that, unresolved before the affirmation deadline, significantly raises settlement fail risk.

DTC Delivery Orders

A DTC book-entry instruction used to move securities between participant accounts through valued or free delivery workflows.

DTC Digital Omnibus Account

The DTC Digital Omnibus Account holds the aggregate DTC quantity represented by outstanding tokenized entitlements during the stated DTS conversion process.

DTC FAST

The DTC transfer-agent program that supports electronic book-entry position movement by replacing repeated physical certificate movement with controlled FAST balances.

DTC RAD

A context-dependent DTC term covering reorganization announcement data in corporate actions and Receiver Authorized Delivery controls in settlement.

DTC Settlement Operations

e settlement system operated by the Depository Trust Company (DTC) that executes final book-entry delivery-versus-payment transfers of US securities after NSCC clearing, with end-of-day cash finality through the Federal Reserve.

DTC Settlement Window

The daily DTC operating cycle where book-entry delivery instructions are processed, risk-checked, recycled, and finalized.

DTC Tokenization Service

DTC Tokenization Service lets eligible DTC Participants convert selected DTC-held security entitlements into controlled tokenized entitlements held in registered wallets.

DTC vs NSCC

The distinction between NSCC as the clearing and netting layer and DTC as the depository and book-entry settlement layer.