Open Source Mortgage Model, With ARM Functionality

Check it out.  Updates in the “release notes” tab.  Right now the model allows for both fixed-rate and ARM mortgages.  ARM reset/recast equations are set (pretty sure about it at least!), home price appreciations fluctuate according to a random normal distribution bounded by mean/stdev from Case-Shiller Composite-10 data by default, although if a user has less optimistic assumptions (particularly about the mean monthly appreciation) it changes the outcome significantly.

Eventually we’re going to put this into an integrated tool with monte-carlo simulation showing the distribution/probabilities of outcomes to help users select the best option given their inputs/assumptions.  Eventually being the key word.

**This is available for use with attribution, please email us if you have any questions**

Here it is.

8 thoughts on “Open Source Mortgage Model, With ARM Functionality

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