Clearing Services - Equities

OBLIGATION WAREHOUSE Web Application Upgrade – Updated PSE Release

Wed, 15 Apr 2026 00:00:00 -0500

OBLIGATION WAREHOUSE Web Application Upgrade – Updated PSE Release

Notice: A9750

Summary:

The upgraded OW Web application will be released in the PSE (pre-production) environment on April 29th 2026. Clients can begin testing the new system on this date.

CNS Modernization Client Testing Plan to Begin July 13, 2026 Part II (CSV Reports Available on DTCC Learning)

Wed, 15 Apr 2026 00:00:00 -0500

CNS Modernization Client Testing Plan to Begin July 13, 2026 Part II (CSV Reports Available on DTCC Learning)

Notice: a9751

Summary:

CNS Modernization Client Testing Plan to Begin July 13, 2026 Part II (CSV Reports Available on DTCC Learning)

NSCC BEGINS COLLECTING FEES FOR NYSE

Tue, 14 Apr 2026 00:00:00 -0500

NSCC BEGINS COLLECTING FEES FOR NYSE

Notice: A9748

Summary:

Effective April 2026, National Securities Clearing Corporation (“NSCC”) will begin collecting fees through its consolidated settlement system for NYSE

OBLIGATION WAREHOUSE Web Application Upgrade – Updated PSE Release

Tue, 07 Apr 2026 00:00:00 -0500

OBLIGATION WAREHOUSE Web Application Upgrade – Updated PSE Release

Notice: A9746

Summary:

As referenced in Important Notice A9723, NSCC is in the process of enhancing the Obligation Warehouse Web application by migrating it to an upgraded version utilizing a newer Angular framework. This enhancement aims to improve the application's overall appearance and user experience. Note the change to the proposed schedule:

The PSE Release for the upgraded application is now TBD.

ETF Options Clearing Connect Enhancement: SEC Rule Filing Approval and Go-Live date

Thu, 02 Apr 2026 00:00:00 -0500

ETF Options Clearing Connect Enhancement: SEC Rule Filing Approval and Go-Live date

Notice: A9745

Summary:

ETF Options Clearing Connect Enhancement: SEC Rule Filing Approval and Go-Live date

CNS Modernization Client Testing Plan to Begin July 13, 2026

Tue, 31 Mar 2026 00:00:00 -0500

CNS Modernization Client Testing Plan to Begin July 13, 2026

Notice: a9742

Summary:

CNS Modernization Client Testing Plan to Begin July 13, 2026

UNIVERSAL TRADE CAPTURE (UTC) – 24X5 TRADING UPDATE

Mon, 23 Mar 2026 00:00:00 -0500

UNIVERSAL TRADE CAPTURE (UTC) – 24X5 TRADING UPDATE

Notice: A9737

Summary:

Client Testing Requirements for 24x5 initiative

UNIVERSAL TRADE CAPTURE (UTC) – REPORTING ENHANCEMENTS

Mon, 16 Mar 2026 00:00:00 -0500

UNIVERSAL TRADE CAPTURE (UTC) – REPORTING ENHANCEMENTS

Notice: 9730

Summary:

New service offering being introduced via UTC to allow executing/introducing broker dealers to receive direct trade capture data for activity with their existing clearing firms.

ACATS ENHANCEMENTS FOR TRUMP ACCOUNTS

Fri, 13 Mar 2026 00:00:00 -0500

ACATS ENHANCEMENTS FOR TRUMP ACCOUNTS

Notice: a9736

Summary:

ACATS enhancements to support the new Trump Accounts (530A accounts) scheduled for launch on July 5, 2026.

OBLIGATION WAREHOUSE - WEB APPLICATION UPGRADE

Wed, 18 Feb 2026 00:00:00 -0600

OBLIGATION WAREHOUSE - WEB APPLICATION UPGRADE

Notice: A9723

Summary:

OW Web is being upgraded to the latest web components (Angular)

CNS Modernization Update Functional Change: CNS Modernization Data Input/Output – Format and Channels. Schedule Go Live 11-16-2026

Wed, 28 Jan 2026 00:00:00 -0600

CNS Modernization Update Functional Change: CNS Modernization Data Input/Output – Format and Channels. Schedule Go Live 11-16-2026

Notice: a9717

Summary:

CNS Modernization Update Functional Change: CNS Modernization Data Input/Output – Format and Channels. Schedule Go Live 11-16-2026

ETF CREATE/REDEEM ACTIVITY REPORTING FILE

Fri, 16 Jan 2026 00:00:00 -0600

ETF CREATE/REDEEM ACTIVITY REPORTING FILE

Notice: 9708

Summary:

As a systemically important financial market utility, NSCC, has a regulatory obligation to maintain sufficient liquid resources to meet its payment obligations with a high degree of confidence under a wide range of foreseeable stress scenarios. These scenarios include, but are not limited to, the default of the participant family that would generate the largest aggregate payment obligation in extreme, but plausible, market conditions (i.e., maintain a Cover 1 standard).
In June 2025, NSCC published the specifications document for the new ETF Create/Redeem Activity Reporting file (the “11200” file), which will enable ETF Agents to provide projected activity reports systematically to NSCC. This will enhance NSCC’s ability to project its liquidity needs (for both the ETF Agent and the Authorized Participant on the orders) and collect sufficient liquidity resources to meet its regulatory liquidity risk management requirements and mitigate the risk of disruption to the industry following a member default.

ACATS CLIENT INTERFACE LEGACY FILES DECOMMISSION – REMINDER!

Tue, 13 Jan 2026 00:00:00 -0600

ACATS CLIENT INTERFACE LEGACY FILES DECOMMISSION – REMINDER!

Notice: a9706

Summary:

ACATS reminder of the upcoming decommission of the legacy file formats as part of the client interface modernization initiative.

UNIVERSAL TRADE CAPTURE (UTC) – 24X5 TRADING UPDATE

Wed, 07 Jan 2026 00:00:00 -0600

UNIVERSAL TRADE CAPTURE (UTC) – 24X5 TRADING UPDATE

Notice: A9689

Summary:

This is an Important Notices regarding NSCC’s plans to further expand its trade capture capabilities. As part of this initiative, NSCC will be implementing additional controls and changes for 9A/9B and high value threshold validation.

Confirmation of Implementation Date of Enhancements to the Calculation of the National Securities Clearing Corporation’s CNS Fails Charge

Fri, 12 Dec 2025 00:00:00 -0600

Confirmation of Implementation Date of Enhancements to the Calculation of the National Securities Clearing Corporation’s CNS Fails Charge

Notice: a9697

Summary:

Implementation Date of Enhancements to CNS Fails Charge

ACATS WEB PORTAL ENHANCEMENTS

Wed, 03 Dec 2025 00:00:00 -0600

ACATS WEB PORTAL ENHANCEMENTS

Notice: a9688

Summary:

Updated web portal to latest DTCC branding and structure.

Implementation Date of Enhancements to the Calculation of the National Securities Clearing Corporation’s CNS Fails Charge

Mon, 01 Dec 2025 00:00:00 -0600

Implementation Date of Enhancements to the Calculation of the National Securities Clearing Corporation’s CNS Fails Charge

Notice: a9687

Summary:

CNS Fails Charge Enhancement Implementation Date

CTS & UTC DTCC PORTAL URL CHANGE – PRODUCTION UPDATE

Tue, 18 Nov 2025 00:00:00 -0600

CTS & UTC DTCC PORTAL URL CHANGE – PRODUCTION UPDATE

Notice: 9666

Summary:

CTS/UTC Prod release of Merged App as part of WAS Migration

Year 2026 Obligation Warehouse RECAPS Schedule

Mon, 17 Nov 2025 00:00:00 -0600

Year 2026 Obligation Warehouse RECAPS Schedule

Notice: A9676

Summary:

The dates for NSCC’s monthly Reconfirmation and Re-pricing Service (RECAPS) have been scheduled for 2026.

Functional Change: CNS Modernization Data Input/Output – Format and Channels. Schedule Go Live Q4 2026

Mon, 17 Nov 2025 00:00:00 -0600

Functional Change: CNS Modernization Data Input/Output – Format and Channels. Schedule Go Live Q4 2026

Notice: a9678

Summary:

Functional Change: CNS Modernization Data Input/Output – Format and Channels. Schedule Go Live Q4 2026

Confirmation of Bank Holiday Charge Figure – Veterans Day

Fri, 07 Nov 2025 00:00:00 -0600

Confirmation of Bank Holiday Charge Figure – Veterans Day

Notice: a9674

Summary:

Bank Holiday Charge Figure – Veterans Day

NSCC BEGINS COLLECTING FEES FOR 24X NATIONAL EXCHANGE

Wed, 05 Nov 2025 00:00:00 -0600

NSCC BEGINS COLLECTING FEES FOR 24X NATIONAL EXCHANGE

Notice: A9671

Summary:

NSCC will begin collecting fees through its consolidated settlement system for the 24X National Exchange (24X).

UNIVERSAL TRADE CAPTURE (UTC) – 24X5 TRADING TESTING UPDATE

Wed, 05 Nov 2025 00:00:00 -0600

UNIVERSAL TRADE CAPTURE (UTC) – 24X5 TRADING TESTING UPDATE

Notice: A9670

Summary:

This notice announces NSCC’s upcoming expansion of Universal Trade Capture (UTC) to support 24x5 trade processing, outlines the client testing schedule and requirements for the new FIX Tag 715, and provides guidance for onboarding and testing ahead of the planned production release.

ETF Product Information Form (PIF) & PCF Updates

Thu, 30 Oct 2025 00:00:00 -0500

ETF Product Information Form (PIF) & PCF Updates

Notice: 9669

Summary:

Notice of changes made to PIF form and PCF output

Notice of Bank Holiday Charge Collection – Veterans Day 2025

Mon, 27 Oct 2025 00:00:00 -0500

Notice of Bank Holiday Charge Collection – Veterans Day 2025

Notice: a9665

Summary:

Bank Holiday Charge Collection

Confirmation of Bank Holiday Charge Figure – Columbus Day/Indigenous Peoples’ Day

Wed, 08 Oct 2025 00:00:00 -0500

Confirmation of Bank Holiday Charge Figure – Columbus Day/Indigenous Peoples’ Day

Notice: a9655

Summary:

NSCC confirms the assessment of a Bank Holiday Charge equal to 33% of each Member’s start of day Volatility charge on Friday, October 10th ahead of Columbus Day/Indigenous Peoples’ Day, Monday, October 13, 2025.

UNIVERSAL TRADE CAPTURE EXCHANGE LAUNCH FOR 24X NATIONAL EXCHANGE (24X)

Tue, 07 Oct 2025 00:00:00 -0500

UNIVERSAL TRADE CAPTURE EXCHANGE LAUNCH FOR 24X NATIONAL EXCHANGE (24X)

Notice: A9654

Summary:

24X National Exchange announcement to begin operating as an Exchange.

CNS Equity Master File – Unit of Trading

Fri, 03 Oct 2025 00:00:00 -0500

CNS Equity Master File – Unit of Trading

Notice: A9652

Summary:

In light of the adoption of SEC Rule 600(b)(93), a new tiered round lot structure will come into effect starting November 3, 2025. NSCC currently publishes round lot size in a daily report based on information provided by the exchanges. Starting November 2, 2025, this value will no longer be populated in the NSCC daily report.

Notice of Bank Holiday Charge Collection – Columbus Day/Indigenous Peoples’ Day

Fri, 26 Sep 2025 00:00:00 -0500

Notice of Bank Holiday Charge Collection – Columbus Day/Indigenous Peoples’ Day

Notice: a9649

Summary:

NSCC will collect an additional 33% of each Member’s start of day Volatility charge on Friday, October 10th ahead of Columbus Day/Indigenous Peoples’ Day, Monday, October 13, 2025.

CTS AND UTC DTCC PORTAL URL CHANGE – PSE UPDATE

Wed, 24 Sep 2025 00:00:00 -0500

CTS AND UTC DTCC PORTAL URL CHANGE – PSE UPDATE

Notice: 9647

Summary:

Update regarding URL change to UTC/CTS Web Applications to support WAS migration.

ACATS SETTLE PREP REMOVAL / MUTUAL FUND DAY 2 ACKNOWLEDGEMENT REMOVAL – REGULATORY APPROVAL NOTICE AND PRODUCTION REMINDER!

Fri, 19 Sep 2025 00:00:00 -0500

ACATS SETTLE PREP REMOVAL / MUTUAL FUND DAY 2 ACKNOWLEDGEMENT REMOVAL – REGULATORY APPROVAL NOTICE AND PRODUCTION REMINDER!

Notice: a9646

Summary:

Reminder of ACATS enhancements that will include: 1) the removal of Settle Prep (status 300), and 2) the removal of the ACATS Fund/SERV Day 2 acknowledgement.

Effective Date of the Removal of the Other Transactions Charge (Non-CNS Charge) from the NSCC Rules

Mon, 08 Sep 2025 00:00:00 -0500

Effective Date of the Removal of the Other Transactions Charge (Non-CNS Charge) from the NSCC Rules

Notice: a9639

Summary:

Effective September 22, 2025, NSCC will remove the Other Transactions Charge (Non-CNS Charge) - a margin component that is charged to Members for certain settlement transactions other than CNS, Balance Order, Mutual Fund Services and Envelope Settlement Service transactions.

UNIVERSAL TRADE CAPTURE EXCHANGE TESTING FOR 24X NATIONAL EXCHANGE (24X)

Thu, 07 Aug 2025 00:00:00 -0500

UNIVERSAL TRADE CAPTURE EXCHANGE TESTING FOR 24X NATIONAL EXCHANGE (24X)

Notice: A9629

Summary:

This Important Notice outlines the planned industry testing schedule in support of the new 24X National Exchange.

AMENDMENT TO NOTICE (A9608) - CTS AND UTC DTCC PORTAL URL CHANGE

Thu, 07 Aug 2025 00:00:00 -0500

AMENDMENT TO NOTICE (A9608) - CTS AND UTC DTCC PORTAL URL CHANGE

Notice: 9628

Summary:

Updates to the ongoing CTS/URL new URL change to accommodate Modernization efforts.

Fully-Paid-For Account Decommission

Tue, 29 Jul 2025 00:00:00 -0500

Fully-Paid-For Account Decommission

Notice: 9623

Summary:

The decommissioned code will be available in our test region (PSE) on August 8th, 2025, for client testing

Level 2 Exemptions Process Decommission

Mon, 28 Jul 2025 00:00:00 -0500

Level 2 Exemptions Process Decommission

Notice: a9619

Summary:

The decommissioned code will be available in our test region (PSE) on July 30, 2025

HARPURSVILLE N Y CEN 004000 26

Tue, 22 Jul 2025 00:00:00 -0500

HARPURSVILLE N Y CEN 004000 26

Notice: CMU189-25

Summary:

Participants are advised that NSCC, through its agent, has received notification from the Underwriter that CUSIP 413594DM1 on issue HARPURSVILLE N Y CEN 004000 26, originally scheduled for settlement date 07/22/2025 has been POSTPONED until 07/23/2025. The dated date and interest accrual date is 07/22/2025

CTS AND UTC DTCC PORTAL URL CHANGE

Thu, 12 Jun 2025 00:00:00 -0500

CTS AND UTC DTCC PORTAL URL CHANGE

Notice: A9608

Summary:

CHANGES IN THE LIST OF PARTICIPANTS

Fri, 06 Jun 2025 00:00:00 -0500

CHANGES IN THE LIST OF PARTICIPANTS

Notice: a9605

Summary:

UNIVERSAL TRADE CAPTURE (UTC) – MODERNIZATION/EXTENDED OPERATING HOURS UPDATE

Tue, 06 May 2025 00:00:00 -0500

UNIVERSAL TRADE CAPTURE (UTC) – MODERNIZATION/EXTENDED OPERATING HOURS UPDATE

Notice: A9595

Summary:

Updates to NSCC’s Schedule of Haircuts for Eligible Clearing Fund Securities

Tue, 15 Apr 2025 00:00:00 -0500

Updates to NSCC’s Schedule of Haircuts for Eligible Clearing Fund Securities

Notice: a9585

Summary:

Level 2 Exemptions Process Decommission

Thu, 10 Apr 2025 00:00:00 -0500

Level 2 Exemptions Process Decommission

Notice: a9580

Summary:

Fully Paid For Process Decommission

Thu, 10 Apr 2025 00:00:00 -0500

Fully Paid For Process Decommission

Notice: a9581

Summary:

ACATS SETTLE PREP REMOVAL / MUTUAL FUND DAY 2 ACKNOWLEDGEMENT REMOVAL – REQUIREMENTS & PRODUCTION DATE CHANGE

Tue, 25 Mar 2025 00:00:00 -0500

ACATS SETTLE PREP REMOVAL / MUTUAL FUND DAY 2 ACKNOWLEDGEMENT REMOVAL – REQUIREMENTS & PRODUCTION DATE CHANGE

Notice: a9574

Summary:

Changes to Volatility Haircut Schedule for Illiquid Securities

Tue, 25 Mar 2025 00:00:00 -0500

Changes to Volatility Haircut Schedule for Illiquid Securities

Notice: a9573

Summary:

DTCC Fedwire Funds ISO20022 Testing

Tue, 25 Feb 2025 00:00:00 -0600

DTCC Fedwire Funds ISO20022 Testing

Notice: a9560

Summary:

DTCC Good Friday Testing
- Revised

Thu, 13 Feb 2025 00:00:00 -0600

DTCC Good Friday Testing
- Revised

Notice: A9556

Summary:

NSCC BEGINS COLLECTING FEES FOR NYSE SECTION 31 FEES

Mon, 03 Feb 2025 00:00:00 -0600

NSCC BEGINS COLLECTING FEES FOR NYSE SECTION 31 FEES

Notice: A9554

Summary:

UNIVERSAL TRADE CAPTURE (UTC) – MODERNIZATION/EXTENDED OPERATING HOURS

Thu, 30 Jan 2025 00:00:00 -0600

UNIVERSAL TRADE CAPTURE (UTC) – MODERNIZATION/EXTENDED OPERATING HOURS

Notice: A9551

Summary:

ACATS CLIENT INTERFACE LEGACY FILES DECOMISSION EXTENSION

Wed, 22 Jan 2025 00:00:00 -0600

ACATS CLIENT INTERFACE LEGACY FILES DECOMISSION EXTENSION

Notice: a9549

Summary:

Clearing Services - Equities

OBLIGATION WAREHOUSE Web Application Upgrade – Updated PSE Release

CNS Modernization Client Testing Plan to Begin July 13, 2026 Part II (CSV Reports Available on DTCC Learning)

NSCC BEGINS COLLECTING FEES FOR NYSE

OBLIGATION WAREHOUSE Web Application Upgrade – Updated PSE Release

ETF Options Clearing Connect Enhancement: SEC Rule Filing Approval and Go-Live date

CNS Modernization Client Testing Plan to Begin July 13, 2026

UNIVERSAL TRADE CAPTURE (UTC) – 24X5 TRADING UPDATE

UNIVERSAL TRADE CAPTURE (UTC) – REPORTING ENHANCEMENTS

ACATS ENHANCEMENTS FOR TRUMP ACCOUNTS

OBLIGATION WAREHOUSE - WEB APPLICATION UPGRADE

CNS Modernization Update Functional Change: CNS Modernization Data Input/Output – Format and Channels. Schedule Go Live 11-16-2026

ETF CREATE/REDEEM ACTIVITY REPORTING FILE

ACATS CLIENT INTERFACE LEGACY FILES DECOMMISSION – REMINDER!

UNIVERSAL TRADE CAPTURE (UTC) – 24X5 TRADING UPDATE

Confirmation of Implementation Date of Enhancements to the Calculation of the National Securities Clearing Corporation’s CNS Fails Charge

ACATS WEB PORTAL ENHANCEMENTS

Implementation Date of Enhancements to the Calculation of the National Securities Clearing Corporation’s CNS Fails Charge

CTS & UTC DTCC PORTAL URL CHANGE – PRODUCTION UPDATE

Year 2026 Obligation Warehouse RECAPS Schedule

Functional Change: CNS Modernization Data Input/Output – Format and Channels. Schedule Go Live Q4 2026

Confirmation of Bank Holiday Charge Figure – Veterans Day

NSCC BEGINS COLLECTING FEES FOR 24X NATIONAL EXCHANGE

UNIVERSAL TRADE CAPTURE (UTC) – 24X5 TRADING TESTING UPDATE

ETF Product Information Form (PIF) & PCF Updates

Notice of Bank Holiday Charge Collection – Veterans Day 2025

Confirmation of Bank Holiday Charge Figure – Columbus Day/Indigenous Peoples’ Day

UNIVERSAL TRADE CAPTURE EXCHANGE LAUNCH FOR 24X NATIONAL EXCHANGE (24X)

CNS Equity Master File – Unit of Trading

Notice of Bank Holiday Charge Collection – Columbus Day/Indigenous Peoples’ Day

CTS AND UTC DTCC PORTAL URL CHANGE – PSE UPDATE

ACATS SETTLE PREP REMOVAL / MUTUAL FUND DAY 2 ACKNOWLEDGEMENT REMOVAL – REGULATORY APPROVAL NOTICE AND PRODUCTION REMINDER!

Effective Date of the Removal of the Other Transactions Charge (Non-CNS Charge) from the NSCC Rules

UNIVERSAL TRADE CAPTURE EXCHANGE TESTING FOR 24X NATIONAL EXCHANGE (24X)

AMENDMENT TO NOTICE (A9608) - CTS AND UTC DTCC PORTAL URL CHANGE

Fully-Paid-For Account Decommission

Level 2 Exemptions Process Decommission

HARPURSVILLE N Y CEN 004000 26

CTS AND UTC DTCC PORTAL URL CHANGE

CHANGES IN THE LIST OF PARTICIPANTS

UNIVERSAL TRADE CAPTURE (UTC) – MODERNIZATION/EXTENDED OPERATING HOURS UPDATE

Updates to NSCC’s Schedule of Haircuts for Eligible Clearing Fund Securities

Level 2 Exemptions Process Decommission

Fully Paid For Process Decommission

ACATS SETTLE PREP REMOVAL / MUTUAL FUND DAY 2 ACKNOWLEDGEMENT REMOVAL – REQUIREMENTS & PRODUCTION DATE CHANGE

Changes to Volatility Haircut Schedule for Illiquid Securities

DTCC Fedwire Funds ISO20022 Testing

DTCC Good Friday Testing- Revised

NSCC BEGINS COLLECTING FEES FOR NYSE SECTION 31 FEES

UNIVERSAL TRADE CAPTURE (UTC) – MODERNIZATION/EXTENDED OPERATING HOURS

ACATS CLIENT INTERFACE LEGACY FILES DECOMISSION EXTENSION

DTCC Good Friday Testing
- Revised