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Function Reference
1010data Insights Platform offers a rich set of functions that may be used in value expressions when creating computed columns and in selection expressions when performing row selections.
Financial functions
mbssmm(wac;wam;factor1;factor2;months)
Returns the single monthly mortality (SMM). This is the MBS prepayment rate.

Function Reference
1010data Insights Platform offers a rich set of functions that may be used in value expressions when creating computed columns and in selection expressions when performing row selections.
- All 1010data Functions
  1010data provides a whole range of functions that can provide information and act on your data.
- Time/Date functions
  The time/date functions are vector functions that operate on columns containing time-related data and return specific information about the date/time for each row.
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  Group functions, or g_functions, are used to perform operations, such as summarizations, on rows that have the same values in a set of given columns.
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  Categorization functions are vector functions that organize data and determine logical groupings. These functions can be used for conditionalizing results and/or bucketing value ranges.
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  SQL compatibility functions are functions that treat null values as SQL nulls.
- Financial functions
  - amort(rate;remterm;months)
    Returns the mortgage amortization.
  - bondconvexity1(cpn;mat;dcb;setl;price)
    Returns the bond convexity given the price (regular semiannual payments).
  - bondconvexity2(cpn;mat;dcb;issu;first;freq;setl;price)
    Returns the bond convexity given price (general).
  - bondmoddur1(cpn;mat;dcb;setl;price)
    Returns the bond modified duration given price (regular semiannual payments).
  - bondmoddur2(cpn;mat;dcb;issu;first;freq;setl;price)
    Returns the bond modified duration given price (general).
  - bondprice1(cpn;mat;dcb;setl;yield)
    Returns the bond price given yield (regular semiannual payments).
  - bondprice2(cpn;mat;dcb;issu;first;freq;setl;yld)
    Returns the Bond price given yield (general).
  - bondyield1(cpn;mat;dcb;setl;price)
    Returns the bond yield given price (regular semiannual payments).
  - bondyield2(cpn;mat;dcb;issu;first;freq;setl;price)
    Returns the bond yield given price (general).
  - cpr2smm(X)
    Returns the SMM (single monthly mortality) given CPR (conditional prepayment rate).
  - Daily count basis
    Determines how interest accrues over time. This is also known as daily count conventions.
  - MBS type
    Determines payment delays.
  - mbscpr(wac;wam;factor1;factor2;months)
    Returns the conditional prepayment rate (CPR).
  - mbsmoddur1(type;cpn;wac;wam;setl;pptype;pprate;p)
    Returns the mortgage-backed security (MBS) modified duration given price (30-year agency pools).
  - mbsmoddur2(type;cpn;wac;term;wam;wala;dly;setl;pptype;pprate;p)
    Returns the mortgage-backed security (MBS) modified duration given price (general)
  - mbsprice1(type;cpn;wac;wam;setl;pptype;pprate;yld)
    Returns the mortgage-backed security (MBS) price given yield (30-year agency pools).
  - mbsprice2(type;cpn;wac;term;wam;wala;dly;setl;pptype;pprate;yld)
    Returns the mortgage-backed security (MBS) price given yield (general)
  - mbssmm(wac;wam;factor1;factor2;months)
    Returns the single monthly mortality (SMM). This is the MBS prepayment rate.
  - mbsyield1(type;cpn;wac;wam;setl;pptype;pprate;p)
    Returns the mortgage-backed security (MBS) yield given price (30-year agency pools).
  - mbsyield2(type;cpn;wac;term;wam;wala;dly;setl;pptype;pprate;p)
    Returns the mortgage-backed security (MBS) yield given price (general).
  - smm2cpr(X)
    Returns the CPR (conditional prepayment rate) given SMM (single monthly mortality).
- System functions
  System functions are special functions in 1010data that return information about users, tables, and other system objects.
- Object functions
  The object functions can be used to check the existence, type, and accessibility of objects such as folders, tables, and queries on the 1010data Insights Platform.
- Miscellaneous functions
  This category of functions contains special functions that don't neatly fit into other categories of functions.

`mbssmm(wac;wam;factor1;factor2;months)`

Returns the single monthly mortality (SMM). This is the MBS prepayment rate.

Syntax

mbssmm(wac;wam;factor1;factor2;months)

Input

Argument	Type	Description
`wac`	integer or decimal	The weighted average coupon (WAC) of the underlying mortgages, expressed as a percentage A scalar value or the name of a column
`wam`	integer	the weighted average remaining term (in months) of the underlying mortgages A scalar value or the name of a column
`factor1`	integer or decimal	The earlier factor A scalar value or the name of a column
`factor2`	integer or decimal	The later factor A scalar value or the name of a column
`months`	integer	The number of months between the two factors. A scalar value or the name of a column

Note: One of the arguments must reference a column.

Return Value

Returns the average SMM for the period.

The mbssmm(wac;wam;factor1;factor2;months) function handles N/A values as follows:

If any argument is N/A, the result is N/A.
The result is also N/A if months is greater than or equal to the remaining term (wam).

Note: 1010data has not audited these computations and takes no responsibility for their accuracy or precision. Please do not use the result of this function to trade securities without independently verifying the result.