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Browsing and Exporting Buy-Up/Buy-Down Ratios


In the Pricing & Execution – MBS application, you can browse and download the BU/BD Ratios for a specific seller number from the BU/BD Ratio screen. The file can be downloaded in a .csv or .xls format, which are readable by most spreadsheet and database programs.

To browse and download BU/BD Ratios:

  1. If you have multiple seller IDs, select the desired number from the drop-down list adjacent to your login in the top right corner.

  2. On the Function menu, click BU/BD Ratios.



    The BU/BD Ratio screen appears. By default, the table will display the most recently posted BU/BD Ratios and six months of historical pricing. The table will specify the following:

    • Issue Month: Issue month for which the BU/BD ratios apply.

    • Publish Date: Date and time when the BU/BD ratios were published.

    • BU/BD Grid: Provides the following identifiers: Prefix_UniqueIdentifier_PublishDate:

      • Prefix:

        • LR indicates a BU/BD Ratio that is assigned for an issue month.

        • CR indicates a BU/BD Ratio that is assigned to one or more MBS Commitments.

      • 4 Digit Unique Identifier indicates a unique set of BU/BD Ratios. Merging commitments may result in the same ratios being posted more than one time. This identifier can be used to determine when the same set of BU/BD Ratios has been posted. Additionally, this identifier can be provided to your Fannie Mae Capital Markets Account Executive for troubleshooting any issues.

      • Publish Date indicates when the ratios were published.

    • Assign Level: Denotes whether the BU/BD Ratios are assigned to an issue month or one or more MBS commitments.

  1. Select a month from the Issue Month filter to view BU/BD Ratios for a specific Issue Month.

  1. To view the BU/BD ratios, click on your preferred format, CSV or XLS. Your system will prompt you to save and/or open the file.

NOTE: The following image demonstrates this functionality in Internet Explorer. Open and save steps vary by browser.

  1. Click Save. The Save As window appears.

  2. Specify the desired file location, enter the file name and click Save.