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Familiarize yourself with the benefits and features of the Obligation Warehouse and DTCC's Obligation Warehouse (OW) Web application.

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The Obligation Warehouse webcasts provide background information about OW and a high-level overview of the OW Web application. For a comprehensive (200+ page) reference to the OW, view OW Documentation, including the Obligation Warehouse (OW) User Guide. The OW Web Interactive Learning Tool simulates the OW Web application to familiarize you with its interface.

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Obligation Warehouse

About Obligation Warehouse

Obligation Warehouse (OW) is a product of the National Securities Clearing Corporation (NSCC), which is a Member owned subsidiary of the Depository Trust and Clearing Corporation (DTCC). The services provided for trade capture and clearing create a common repository for the transactions from the marketplaces, including the listed exchanges and alternative trading platforms collectively, and consolidates those transactions to reduce the burden of trade for trade settlement for each transaction. Additionally, NSCC provides a guarantee for specific transactions that are netted through Balance Orders or the Continuous Net Settlement (CNS) accounting service and settled either at NSCC, DTC, or at another depository.

The National Securities Clearing Corporation (NSCC) has upgraded and expanded the technology for the Reconfirmation and Pricing Service (RECAPS) and introduced the Obligation Warehouse (OW). The Securities and Exchange Commission (SEC) approved the NSCC Rule filing and Financial Regulatory Authority (FINRA) provided the interpretative guidance to state that the OW is a mandated service for NSCC broker dealer full service members. 

Obligation Warehouse Benefits

The Obligation Warehouse (OW) provides the following industry benefits:

  • A central repository of open broker to broker obligations.
  • Automate real-time matching / confirmations of ex-clearing, non-CNS obligations.
  • Ability to manage and resolve exceptions, DK’s, in a more timely manner.
  • Servicing of open obligations. Adjusting for corporate actions and scanning for CNS eligibility daily.
  • Risk mitigation and net capital relief through mark to market of open obligations.

>Obligation Warehouse provides an automated service for the matching of open obligations in the same securities currently supported by RECAPS. The centralized service supports bilateral matching of fails and other ex-clearing obligations in real time, rather than quarterly, and it communicates a successful match to both parties of the obligation. The database will store non-CNS matched open obligations from trade date through actual settlement date. RECAPS does not store open obligations once they are matched, netted, and re-priced.

Obligation Warehouse checks for CNS eligibility, daily, and net, re-price, and re-date non-CNS eligible securities on more frequent basis than the current RECAPS. The OW will also adjust matched fails for mandatory corporate actions. In addition to securities covered under the current RECAPS system, (equities, municipal bonds, corporate bonds, and UIT’s), the Obligation Warehouse will also include receive and deliver instructions issued by the Automated Customer Account Transfer Service (ACATS). 

Obligation Warehouse (OW) Web

Obligation Warehouse (OW) Web is a secure, browser-based obligation entry/ management tool that incorporates robust search capabilities, statistical reporting, and exception processing. The OW Web gives every OW eligible Member access to real-time information, in addition to input and response capability. Additionally, all output files are parsed into sections and defined as reports readily available in the OW Web Report Center for up to two years and thereafter upon request for another five years.

Using OW Web, participants can enter ex-clearing broker to broker obligations, obtain real-time matching, clean up exceptions, store open obligations, check for CNS eligibility daily, and run RECAPS frequently. The OW Web feature allows you to:

  • Perform obligation entry, modification, delivery notification, and cancellation;
  • View, Affirm, or DK advisories;
  • Immediately identify and resolve exceptions;
  • Research obligation exceptions using a search engine;
  • View all matched and uncompared obligation entries by currency, security, status, contra, or a combination of criteria;
  • Export obligation details or query results to Excel spreadsheets;
  • Access end of day OW reports both today and historically.

The OW Web is simple to use and efficient for obligation entry and reporting. The commands and data are validated in real-time, input errors are reported immediately and invalid data elements are returned directly on the entry screen. Delays associated with batch processing and manual comparison should be significantly reduced.

Every obligation submitted, as well as the subsequent related events, are also sent to the Contra to provide both parties with the most updated status. Every obligation is available for viewing on screen regardless of status. Aged obligations are recognizable quickly to assist operational areas in the confirmation and resolution processes.


  • Obligation Warehouse (OW) Best Practices

    The SIFMA SOS OW Best Practices Committee met regularly to discuss and formulate a list of best& ...
    In OW User Guides Downloads: 8

  • Obligation Warehouse User Guide

    The Obligation Warehouse (OW) User Guide contains general knowledge about the use of the Obligation ...
    In OW User Guides Downloads: 299

  • Year 2018 Obligation Warehouse RECAPS Schedule (April 2, 2018 - A#8538)

    The 2018 schedule for the National Securities Clearing Corporation (NSCC)’s Obligation Warehou ...
    In OW Important Notices Downloads: 259

  • Year 2018 Obligation Warehouse RECAPS Schedule (March 1, 2018 - A#8522)

    The 2018 schedule for the National Securities Clearing Corporation (NSCC)’s Obligation Warehou ...
    In OW Important Notices Downloads: 264

  • Year 2018 Obligation Warehouse RECAPS Schedule (February 6, 2018 - A#8513)

    The 2018 schedule for the National Securities Clearing Corporation (NSCC)’s Obligation Warehou ...
    In OW Important Notices Downloads: 270

  • Year 2018 Obligation Warehouse RECAPS Schedule (January 2, 2018 - A#8500)

    The 2018 schedule for the National Securities Clearing Corporation (NSCC)’s Obligation Warehou ...
    In OW Important Notices Downloads: 269

  • Year 2017 Obligation Warehouse RECAPS Schedule (December 1, 2017 - A#8484)

    The 2017 schedule for the National Securities Clearing Corporation (NSCC)’s Obligation Warehou ...
    In OW Important Notices Downloads: 256

  • Obligation Warehouse RECAPS Schedule November 2017 (November 1, 2017 – #A8471)

    The 2017 schedule for the National Securities Clearing Corporation (NSCC)’s Obligation Warehou ...
    In OW Important Notices Downloads: 285

  • Obligation Warehouse RECAPS Schedule October 2017 (October 2, 2017 – #A8460)

    The 2017 schedule for the National Securities Clearing Corporation (NSCC)’s Obligation Warehou ...
    In OW Important Notices Downloads: 256

  • Year 2017 Obligation Warehouse RECAPS Schedule (October 2, 2017 - A#8461)

    The dates for NSCC’s monthly Reconfirmation and Re-pricing Service (RECAPS) have been schedule ...
    In OW Important Notices Downloads: 398

  • Year 2017 Obligation Warehouse RECAPS Schedule (September 1, 2017 - A#8450)

    The 2017 schedule for the National Securities Clearing Corporation (NSCC)’s Obligation Warehou ...
    In OW Important Notices Downloads: 267

  • Year 2017 Obligation Warehouse RECAPS Schedule (August 1, 2017 - A#8436)

    The 2017 schedule for the National Securities Clearing Corporation (NSCC)’s Obligation Warehou ...
    In OW Important Notices Downloads: 254

  • Obligation Warehouse (OW) Overview Webcast - Transcript

    Transcript of the Obligation Warehouse (OW) Overview Webcast, based on the DTCC Learning webinar of ...
    In OW Webcast Transcripts Downloads: 25

  • Obligation Warehouse - Introduction to Obligation Warehouse Webcast - Transcript

    Transcript of the U.S. Equities Obligation Warehouse - Introduction to Obligation Warehouse Webcast, ...
    In OW Webcast Transcripts Downloads: 39

  • Appendix C Message Flows

    Participant Specifications for Obligation Warehouse (OW) Appendix C: Message Flows. ...
    In OW Participant Interactive Messaging Specifications Downloads: 44

  • MT598 General Format

    Provides the general format for Obligation Warehouse SWIFT message MT598 (reject of unparsable input ...
    In Obligation Warehouse (OW) SWIFT MT598 Downloads: 34

  • MT598 Specifications

    Provides the field specifications for Obligation Warehouse SWIFT message MT598 (reject of unparsable ...
    In Obligation Warehouse (OW) SWIFT MT598 Downloads: 33

  • Appendix D Message Samples

    Provides the Participant Specifications for Obligation Warehouse (OW) Appendix A: Message Samples. ...
    In OW Participant Interactive Messaging Specifications Downloads: 41

  • Appendix B Headers for Messages

    Provides the Participant Specifications for Obligation Warehouse (OW) Appendix B: Headers for Messag ...
    In OW Participant Interactive Messaging Specifications Downloads: 44

  • Appendix A Code Tables

    Provides the Participant Specifications for Obligation Warehouse (OW) Appendix A: OW Code Tables. ...
    In OW Participant Interactive Messaging Specifications Downloads: 47

  • Obligation Warehouse End of Day Report - Sample

    Provides a sample of the Obligation Warehourse End of Day Report. ...
    In OW Record Layouts Downloads: 43

  • Participant Services Environment (PSE) Web Portals for Equities Clearing Change URL (Feb 12, 2016 - A8166)

    The Depository Trust and Clearing Corporation (DTCC) will be updating the Participant Services Envir ...
    In OW Important Notices Downloads: 1138

  • Rule Filing - SR-NSCC-2015-009 - Obligation Warehouse Fees (Dec 16, 2015)

    Modify Addendum A (Fee Schedule) to adjust fees related to NSCCs ACATS, OW, FundSERV, Insurance and ...
    In OW Important Notices Downloads: 1014

  • Testing Available for Obligation Warehouse Web (Aug 17, 2015 - #A8068)

    The National Securities Clearing Corporation (NSCC) is migrating to Microsoft Internet Explorer vers ...
    In OW Important Notices Downloads: 998

  • Year 2016 Obligation Warehouse RECAPS Schedule (Aug 11, 2015 - A8065)

    The dates for NSCC’s monthly Reconfirmation and Re-pricing Service (RECAPS) have been schedule ...
    In OW Important Notices Downloads: 1030

  • MT599 Specifications

    Provides the field specifications for Obligation Warehouse SWIFT message MT599 (free format message) ...
    In Obligation Warehouse (OW) SWIFT MT599 Downloads: 27

  • MT599 General Format

    Provides the general format for Obligation Warehouse SWIFT message MT599 (free format message). ...
    In Obligation Warehouse (OW) SWIFT MT599 Downloads: 28

  • Obligation Warehouse Enhancement to Communication with DTC's IMS Processing (June 4, 2014 - A#7852/P&S#7422)

    National Securities Clearing Corporation (NSCC)’s Obligation Warehouse (OW) will enhance its c ...
    In OW Important Notices Downloads: 931

  • Intraday and End of Day Position MRO (AutoRoute Product ID: Production # 02050703, PSE Test # 02980703)

    Provides the details of the Obligation Warehouse Intraday and End of Day Position MRO (AutoRoute Pro ...
    In OW Record Layouts Downloads: 76

  • MT518 Specifications

    Provides the field specifications for Obligation Warehouse SWIFT message MT518 (Market Side Securiti ...
    In Obligation Warehouse (OW) SWIFT MT518 Downloads: 46

  • MT518 Analysis

    Provides the field analysis for Obligation Warehouse SWIFT Message MT518 (Market Side Securities Tra ...
    In Obligation Warehouse (OW) SWIFT MT518 Downloads: 35

  • MT509 General Format

    Provides the general format for Obligation Warehouse SWIFT message MT509 (status message). ...
    In Obligation Warehouse (OW) SWIFT MT509 Downloads: 36

  • MT518 General Format

    Provides the general format for Obligation Warehouse SWIFT message MT518 (Market Side Securities Tra ...
    In Obligation Warehouse (OW) SWIFT MT518 Downloads: 38

  • MT509 Specifications

    Provides the field specifications for Obligation Warehouse SWIFT message MT509 (status message). ...
    In Obligation Warehouse (OW) SWIFT MT509 Downloads: 45

  • MT509 Analysis

    Provides the field analysis for Obligation Warehouse SWIFT message MT509 (status message). ...
    In Obligation Warehouse (OW) SWIFT MT509 Downloads: 31

  • Interactive Messaging Specification

    Provides the Participant Interactive Messaging Specifications for Obligation Warehouse. ...
    In OW Participant Interactive Messaging Specifications Downloads: 57

  • Obligation Warehouse Pair Off Function Production Launch on March 7, 2014 (Feb 13, 2014 - #A7681)

    As previously announced in Important Notice A#7665, dated January 9, 2014, the National Securities C ...
    In OW Important Notices Downloads: 996

  • NSCC Rule Filing (SR-NSCC-2014-01) Fee Changes for OW Pair Off Function (Feb 12, 2014 - #A7680)

    On February 12, 2014, National Securities Clearing Corporation (“NSCC”) filed a proposed ...
    In OW Important Notices Downloads: 960

  • Testing the Obligation Warehouse's Pair Off Function (Jan 27, 2014 - #A7669)

    The 2014 dates for National Securities Clearing Corporation (NSCC)’s monthly Reconfirmation an ...
    In OW Important Notices Downloads: 962

  • Obligation Warehouse Pair Off Update

    This OW User Guide Pair Off Update describes a new daily process being introduced which will afford ...
    In OW User Guides Downloads: 35

  • Approval of Rule Filing (SR-NSCC-2013-11) - OW Pair Off Function (January 9, 2014 - #A7665)

    On January 7, 2014, the Securities and Exchange Commission (“SEC”) approved the rule fil ...
    In OW Important Notices Downloads: 1010

  • Participant Test Scripts

    Provides the test script for the Obligation Warehouse OW Web application. ...
    In OW Testing Downloads: 26

  • Reminder: Testing the Obligation Warehouse Proposed Pair Off Function (January 7, 2014- #A7664)

    As previously announced in Important Notice, #7739, P&S# 7309, dated November 22, 2013, test ...
    In OW Important Notices Downloads: 950

  • Timeline for Testing Obligation Warehouse's Proposed Pair Off Function (Nov 22, 2013 - #A7739)

    As previously announced in Important Notice A# 7684, P&S# 7302, dated August 15, 2013, Natio ...
    In OW Important Notices Downloads: 912

  • OW Pairoff Testing Instructions

    Provides instructions on Obligation Warehouse Pair off Testing & Implementation. ...
    In OW Testing Downloads: 21

  • Rule Filing (SR-NSCC-2013-01) -OW Pair Off Function (Nov 14, 2013) (A#7732/P&S#7302)

    On November 14, 2013, National Securities Clearing Corporation (“NSCC”) filed a proposed ...
    In OW Important Notices Downloads: 877

  • Obligation Warehouse Proposed to Enhances Service with Pair-Offf Function (August 15, 2013 - A#7684, P&S#7254)

    Subject to required regulatory approval, the National Securities Clearing Corporation (NSCC) is prop ...
    In OW Important Notices Downloads: 873

  • OW Pair Off Activity MRO (AutoRoute Product ID: Production # 02051967, PSE Test # 02981967)

    Provides the details of the Obligation Warehouse Pair Off Activity MRO (AutoRoute Product ID: Produc ...
    In OW Record Layouts Downloads: 36

  • MT515 Specifications

    Provides the field specifications for Obligation Warehouse SWIFT message MT515 (Client Confirmation ...
    In Obligation Warehouse (OW) SWIFT MT515 Downloads: 56

  • MT515 General Format

    Provides the general format for Obligation Warehouse SWIFT message MT515 (Client Confirmation of Pur ...
    In Obligation Warehouse (OW) SWIFT MT515 Downloads: 48

  • MT515 Analysis

    Provides the field analysis for Obligation Warehouse SWIFT message MT515 (Client Confirmation of Pur ...
    In Obligation Warehouse (OW) SWIFT MT515 Downloads: 35

  • Obligation Warehouse Phase II Enhancements Release Reminder (April 4, 2013 - #A7613)

    Please be reminded that, as announced in Important Notice A# 7600, P&S# 7170, dated March 8, ...
    In OW Important Notices Downloads: 905

  • Obligation Warehouse Phase II Enhancements Release Date Changed to May 2, 2013 (March 8, 2013 - #A7600)

    The National Securities Clearing Corporation (NSCC) will implement into production the Phase II Enha ...
    In OW Important Notices Downloads: 883

  • Obligation Warehouse - OW Web Functionality Webcast - Transcript

    Transcript of the U.S. Equities Obligation Warehouse - Obligation Warehouse Web Functionality Webcas ...
    In OW Webcast Transcripts Downloads: 20

  • Obligation Warehouse - Basics of Obligation Warehouse Webcast - Transcript

    Transcript of the U.S. Equities Obligation Warehouse - Basics of Obligation Warehouse Webcast ...
    In OW Webcast Transcripts Downloads: 31

  • Obligation Warehouse Phase II Enhancements Testing and Production Implementation Timeline (Jan, 08 2013 - #A7564)

    National Securities Clearing Corporation (NSCC) will be adding Phase II Enhancements to its Obligati ...
    In OW Important Notices Downloads: 971

  • Obligation Warehouse RECAPS Schedule for 2013 (Dec 18, 2012 - #A7554)

    The 2013 dates for National Securities Clearing Corporation (NSCC)’s monthly Reconfirmation an ...
    In OW Important Notices Downloads: 910

  • Obligation Warehouse December 7, 2012 RECAPS Test CANCELLED (Nov 27, 2012 - #A7539)

    National Securities Clearing Corporation (NSCC) has cancelled the test for the enhancements to Oblig ...
    In OW Important Notices Downloads: 971

  • Year 2012 Obligation Warehouse RECAPS Schedule (Nov 19, 2012 - #A7537)

    The National Securities Clearing Corporation (NSCC) is adding an additional Reconfirmation and Repri ...
    In OW Important Notices Downloads: 888

  • CANCELLED: Obligation Warehouse Industry-wide RECAPS Test (November 6, 2012) (A#7526/P&S7096)

    Due to the effects of Superstorm Sandy, National Securities Clearing Corporation has cancelled the f ...
    In OW Important Notices Downloads: 881

  • Year 2012 Obligation Warehouse Participant Training and Testing (Sept 17, 2012 - #A7488)

    The National Securities Clearing Corporation (NSCC) introduced the Obligation Warehouse (the “ ...
    In OW Important Notices Downloads: 905

  • Cash Adjustments for Mandatory Reorg. File (AutoRoute Product ID: Production # 02051658)

    Provides the details of the Obligation Warehouse Cash Adjustments for Mandatory Reorg. File (AutoRou ...
    In OW Record Layouts Downloads: 34

  • Year 2012 Obligation Warehouse 2012 Plans for Enhancements (May 21, 2012 - #A7428)

    The National Securities Clearing Corporation (NSCC) introduced the Obligation Warehouse (OW) in earl ...
    In OW Important Notices Downloads: 1038

  • Year 2012 Obligation Warehouse Planned Industry Test for RECAPS on June 8, 2012 (May 15, 2012 - #A7426)

    The Obligation Warehouse (OW) service will be conducting an industry-wide test for the Repricing and ...
    In OW Important Notices Downloads: 903

  • Year 2012 Obligation Warehouse RECAPS Schedule (April 20, 2012 - #A7410)

    As previously announced, the first run of National Securities Clearing Corporation (NSCC)’s Re ...
    In OW Important Notices Downloads: 937

  • Year 2012 Obligation Warehouse RECAPS Scheduled (March 26, 2012 - A#7399)

    As previously announced, the first run of National Securities Clearing Corporation (NSCC)’s Re ...
    In OW Important Notices Downloads: 901

  • Year 2012 Obligation Warehouse RECAPS Schedule Revised (January 27, 2012 - #A7365)

    As previously announced, the first run of NSCC’s Reconfirmation and Re-pricing Service (RECAPS ...
    In OW Important Notices Downloads: 1019

  • Year 2012 Obligation Warehouse RECAPS Schedule (November 29, 2011 - #A7328)

    National Securities Clearing Corporation (NSCC)’s Reconfirmation and Re-pricing Service (RECAP ...
    In OW Important Notices Downloads: 960

  • Obligation Warehouse - Testing and Introduction of CNS Eligibility Check Planned for August 15, 2011 (June 28, 2011) (A#7234/P&S#6804)

    Obligation Warehouse (OW) was launched in production on March 4, 2011 for all full service Members o ...
    In OW Important Notices Downloads: 985

  • Obligation Warehouse - Fees Effective July 1, 2011 (September 21, 2011) (A#7235/P&S#6805)

    Obligation Warehouse (OW) was launched in production on March 4, 2011 for all full service Members o ...
    In OW Important Notices Downloads: 843

  • Rule Filing SR-NSCC-2011-05 - Obligation Warehouse Fees (June 23, 2011 - #A7229)

    On Monday, June 20, 2011, National Securities Clearing Corporation (NSCC) submitted rule filing SR-N ...
    In OW Important Notices Downloads: 855

  • Year 2011 Obligation Warehouse RECAPS Schedule (June 23, 2011 - #A7230)

    As previously announced, the first run of National Securities Clearing Corporation (NSCC)’s Re ...
    In OW Important Notices Downloads: 812

  • Obligation Warehouse Launches (Feb 22, 2011) (A#7166/P&S#6736)

    As previously announced in NSCC Important Notice A# 7135, P&S # 6705, dated January 7, 2011, ...
    In OW Important Notices Downloads: 842

  • ISO DO Input Message Layouts

    Provides input interactive messaging specifications for delivery order from Obligation Warehouse. ...
    In OW Input/Output Message Layouts Downloads: 81

  • NY Input Layouts

    Provides the DTCC Settlement Input Record Layout. ...
    In OW Input/Output Message Layouts Downloads: 28

  • ISO DO Output Message Layouts

    Provides output interactive messaging specifications for delivery order from Obligation Warehouse. ...
    In OW Input/Output Message Layouts Downloads: 53


The Obligation Warehouse (OW) REORG & OW Web Navigation webcast is intended for NSCC Members and Obligation...

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The Obligation Warehouse (OW) RECAPS and Pair Off Feature webcast is intended for NSCC members and Obligation...

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The Obligation Warehouse (OW) Overview webcast is intended for NSCC Members and Obligation Warehouse users who wish to...

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Welcome to the OW Web: Interactive Learning Tool! This simulation provides information about existing OW Web...

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This 5-minute webcast explains the OW Pair Off process and includes a sample tutorial demonstrating "A One-To-Many...

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This 15-minute webcast is the third in a series of presentations designed to help you better understand the Obligation...

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Obligation Warehouse (OW) is an electronic matching engine for transactions that are not sent to DTCC through...

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What is the Obligation Warehouse? What problems was it created to solve? How does the Obligation Warehouse service...

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