I asked this same question on another forum, and got this answer:
“If a listing on Zip Realty says “inactive”, the listing is either in escrow, sold, withdrawn, or cancelled. If the listing is either cancelled or withdrawn, it is often re-listed within a few days.”

I have seen several houses listed multiple times, and each time I save them in My Zip folder, they duplicate. To me, it’s pretty clear the seller is trying to manipulate the Days On Market figures.

Zip appears to update daily in terms of MLS content. I’ve noticed most new listings appear in the MLS on Monday nights. Probably realtors are working hard on the weekends, and then the database updates within 24 hours or so. I can’t imagine it taking longer simply because in good times houses sell so fast that they’d want the database to update almost instantaneously.

Regarding the 40 inactives – that is a huge number. Maybe some of the realtors on this board can provide us more insight?

I have to give a huge shout-out to Zip – they’ve done a fantastic job with their website, which is tough because they have to please both buyers and sellers! Now if only my assigned agent would stop emailing me….