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Line 1 - 30-Year Fixed Rate Conforming Mortgage Index
Line 1
(a) 30-Year Fixed Rate Conforming Mortgage Index, Percent, Not Seasonally Adjusted (OBMMIC30YF)
Optimal Blue Mortgage Market Indices (https://www2.optimalblue.com/obmmi/)™ (OBMMI™) is calculated from actual locked rates with consumers across over one-third of all mortgage transactions nationwide. OBMMI includes multiple mortgage pricing indices developed around the most popular products and specific borrower and loan level attributes. Each index is calculated as the average of all appropriate rate locks locked through the Optimal Blue product eligibility and pricing engine on a given day. More details about methodology and definitions are available here (https://www2.optimalblue.com/obmmi/).

Select a date that will equal 100 for your custom index:
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    For example, invert an exchange rate by using formula 1/a, where “a” refers to the first FRED data series added to this line. Or calculate the spread between 2 interest rates, a and b, by using the formula a - b.

    Use the assigned data series variables (a, b, c, etc.) together with operators (+, -, *, /, ^, etc.), parentheses and constants (1, 1.5, 2, etc.) to create your own formula (e.g., 1/a, a-b, (a+b)/2, (a/(a+b+c))*100). As noted above, you may add other data series to this line before entering a formula.

    Finally, you can change the units of your new series.

    Select a date that will equal 100 for your custom index:
        Enter date as YYYY-MM-DD

    Line 1 - 30-Year Fixed Rate Conforming Mortgage Index
    Line 2
    (a) 30-Year Fixed Rate Jumbo Mortgage Index, Percent, Not Seasonally Adjusted (OBMMIJUMBO30YF)
    Optimal Blue Mortgage Market Indices (https://www2.optimalblue.com/obmmi/)™ (OBMMI™) is calculated from actual locked rates with consumers across over one-third of all mortgage transactions nationwide. OBMMI includes multiple mortgage pricing indices developed around the most popular products and specific borrower and loan level attributes. Each index is calculated as the average of all appropriate rate locks locked through the Optimal Blue product eligibility and pricing engine on a given day. More details about methodology and definitions are available here (https://www2.optimalblue.com/obmmi/).

    Select a date that will equal 100 for your custom index:
      Enter date as YYYY-MM-DD
    to

    Write a custom formula to transform one or more series or combine two or more series.

    You can begin by adding a series to combine with your existing series.

    Type keywords to search for data

      Now create a custom formula to combine or transform the series.

      For example, invert an exchange rate by using formula 1/a, where “a” refers to the first FRED data series added to this line. Or calculate the spread between 2 interest rates, a and b, by using the formula a - b.

      Use the assigned data series variables (a, b, c, etc.) together with operators (+, -, *, /, ^, etc.), parentheses and constants (1, 1.5, 2, etc.) to create your own formula (e.g., 1/a, a-b, (a+b)/2, (a/(a+b+c))*100). As noted above, you may add other data series to this line before entering a formula.

      Finally, you can change the units of your new series.

      Select a date that will equal 100 for your custom index:
          Enter date as YYYY-MM-DD

      Line 1 - 30-Year Fixed Rate Conforming Mortgage Index
      Line 3
      (a) 30-Year Fixed Rate Conforming Mortgage Index, Percent, Not Seasonally Adjusted (OBMMIC30YF)
      Optimal Blue Mortgage Market Indices (https://www2.optimalblue.com/obmmi/)™ (OBMMI™) is calculated from actual locked rates with consumers across over one-third of all mortgage transactions nationwide. OBMMI includes multiple mortgage pricing indices developed around the most popular products and specific borrower and loan level attributes. Each index is calculated as the average of all appropriate rate locks locked through the Optimal Blue product eligibility and pricing engine on a given day. More details about methodology and definitions are available here (https://www2.optimalblue.com/obmmi/).

      Select a date that will equal 100 for your custom index:
        Enter date as YYYY-MM-DD
      (b) 30-Year Fixed Rate Jumbo Mortgage Index, Percent, Not Seasonally Adjusted (OBMMIJUMBO30YF)
      Optimal Blue Mortgage Market Indices (https://www2.optimalblue.com/obmmi/)™ (OBMMI™) is calculated from actual locked rates with consumers across over one-third of all mortgage transactions nationwide. OBMMI includes multiple mortgage pricing indices developed around the most popular products and specific borrower and loan level attributes. Each index is calculated as the average of all appropriate rate locks locked through the Optimal Blue product eligibility and pricing engine on a given day. More details about methodology and definitions are available here (https://www2.optimalblue.com/obmmi/).

      Select a date that will equal 100 for your custom index:
        Enter date as YYYY-MM-DD
      to

      Write a custom formula to transform one or more series or combine two or more series.

      You can begin by adding a series to combine with your existing series.

      Type keywords to search for data

        Now create a custom formula to combine or transform the series.

        For example, invert an exchange rate by using formula 1/a, where “a” refers to the first FRED data series added to this line. Or calculate the spread between 2 interest rates, a and b, by using the formula a - b.

        Use the assigned data series variables (a, b, c, etc.) together with operators (+, -, *, /, ^, etc.), parentheses and constants (1, 1.5, 2, etc.) to create your own formula (e.g., 1/a, a-b, (a+b)/2, (a/(a+b+c))*100). As noted above, you may add other data series to this line before entering a formula.

        Finally, you can change the units of your new series.

        Select a date that will equal 100 for your custom index:
            Enter date as YYYY-MM-DD

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        Line 1
        30-Year Fixed Rate Conforming Mortgage Index
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        Line 2
        30-Year Fixed Rate Jumbo Mortgage Index
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        Line 3
        30-Year Fixed Rate Jumbo Mortgage Index-30-Year Fixed Rate Conforming Mortgage Index
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        Notes

        30-Year Fixed Rate Conforming Mortgage Index  (OBMMIC30YF)

        Source: Optimal Blue  

        Release: Optimal Blue Mortgage Market Indices  

        Units:  Percent, Not Seasonally Adjusted

        Frequency:  Daily

        Notes:

        Optimal Blue Mortgage Market Indices™ (OBMMI™) is calculated from actual locked rates with consumers across over one-third of all mortgage transactions nationwide. OBMMI includes multiple mortgage pricing indices developed around the most popular products and specific borrower and loan level attributes.

        Each index is calculated as the average of all appropriate rate locks locked through the Optimal Blue product eligibility and pricing engine on a given day. More details about methodology and definitions are available here.

        Suggested Citation:

        Optimal Blue, 30-Year Fixed Rate Conforming Mortgage Index [OBMMIC30YF], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/OBMMIC30YF, April 3, 2025.

        30-Year Fixed Rate Jumbo Mortgage Index  (OBMMIJUMBO30YF)

        Source: Optimal Blue  

        Release: Optimal Blue Mortgage Market Indices  

        Units:  Percent, Not Seasonally Adjusted

        Frequency:  Daily

        Notes:

        Optimal Blue Mortgage Market Indices™ (OBMMI™) is calculated from actual locked rates with consumers across over one-third of all mortgage transactions nationwide. OBMMI includes multiple mortgage pricing indices developed around the most popular products and specific borrower and loan level attributes.

        Each index is calculated as the average of all appropriate rate locks locked through the Optimal Blue product eligibility and pricing engine on a given day. More details about methodology and definitions are available here.

        Suggested Citation:

        Optimal Blue, 30-Year Fixed Rate Jumbo Mortgage Index [OBMMIJUMBO30YF], retrieved from FRED, Federal Reserve Bank of St. Louis; https://fred.stlouisfed.org/series/OBMMIJUMBO30YF, April 3, 2025.

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        Optimal Blue 30-Year Fixed Mortgage Daily Rate Indexes Copyrighted: Citation Required Nation Not Seasonally Adjusted United States of America Jumbo

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