the number of homes available within any search segment, whether its a certain area or other-additional criteria, (size and/or zip code, price range, school district etc.) divided by the number sold in the past month in the same search segment.
Today in Folsom CA 95630 there are 5 homes available for sale that match these criteria: under $625,000, 2250 square foot minimum, 4 bed-3 ba minimum, all w/3 car garages, all w/pool on a .15 acre lot minimum.
Within the same search criteria in the last 30 days, 4 have sold, closed escrow and recorded.
So there is currently 1.25 months of inventory of these homes.