It is often abbreviated as DOM.

Average Days on Market is a similar statistic but instead of applying to one home in particular, it applies to all homes in a given neighborhood, ZIP code, or city. 

Average DOM is calculated by adding the number of days for which every listed home in an area was available for sale, and then dividing that number by the total number of listings.

In a buyer's market, Average Days On Market is often elevated.  This is because homes don't sell as fast as during a seller's market when the Average DOM can be quite low.

For buyers and sellers of real estate, Average Days On Market can be a strong indicator of home prices.  When Average DOM falls, home prices tend to increase.

John Topa, First Sunrise Mortgage, Northeast PA Mortgage Advisor. www.FirstSunriseMortgage.com