Market statistics don't match across sources/MLS

Market statistics don't match across sources/MLS

Sometimes we get questions like "why doesn't the number on a Domus dashboard match the number on some other report?"  That report might even be from the MLS itself.  There could be lots of reasons, but unless the vendor who produced the other report can provide all of the listings that went into each of their calculations, there's no way we can audit our numbers against theirs.  (We always caution users against relying on data from vendors who are unwilling or unable to provide this level of auditing.)  If your comparison is to the MLS, and you can view the listings that the MLS used for their calculation, start there.  Then use one of our member-only dashboards like Market Insights, where you have the ability to drill-through the calculations and inspect the underlying listings for yourself.  Determining the differences in the listings making up the calculation is the quickest way to see why the metrics don't match.

Here are a couple of tips to keep in mind.
  1. What is the source of the input data  (i.e. data from aggregators, like RPR, is often different than data from the MLS)
  2. Are the time periods the same?
  3. Are the filters being used the same?
  4. Are the statuses being searched the same?
  5. Is the definition of the metric being used the same across sources? Days on Market is notoriously different across sources!
If you still can't find the difference, or don't understand why there are differences, contact your MLS support team.

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