Reason for jump in inventory?

[Michaela G.]

Just for fun I've been tracking listings in Realtor.com for the past month and while inventory slowly climbed, this weeks seemed to have an extreme jump. Was labor day some kind of cut-off for bank inventory, maybe?

This is San Francisco bay area

date Hercules Berkeley 94801 San Rafael San Jose

8/8 22 99 39 ? ?

8/23 28 105 48 149 1871

8/29 33 104 46 148 1814

9/4 31 149 60 163 1891

9/5 33 160 83 184 1994

What's going on? Has anyone else noticed such big jumps in their area?

Michaela