Days' Supply Data Source Question

[Jeff Mays]

Hi all...When virtual wholesalers (like me) seek data to determine the viability of new markets, I often hear them refer to the inventory "days' supply" there, and/or the "average days to sale" metrics, or available number of listings currently vs. sold properties over a period of time. I know the meaning of the terms, but I'm having trouble finding out from where they obtain that information...knowing there may be a national source for each market, or on a state-by-state basis. I thought some knowledgeable members here might know where to find that type of data. Thank you!