If it was my data Id be honored that you accept it but its from calculated risk where you can find some more. Inventory in absolute and the trend is the best leading indicator there is for pricing. It is the best most trackable measure of the balance between supply vs demand. The exact reasons dont matter and could be different each place. Its the trend which is unfavorable that matters. So what it means is those alleged CA destination markets are showing very strong signs of large price declines to come while SD continues to be perhaps the strongest market in the country.
I included Santa Clara also as its one of the prime coastal markets and would have included LA if the data was there. I didnt include Sacto which had numbers but is more of fleeing high cost CA market and has more incommon as a place and the inventory trend is similar to LV/PHX/NVille than SD. There wasnt good FLA data but what seems to be going on there is more the great resignation/earlier than expected retirement gang then WFH crowd.
You keep talking about CA losing population of techies but have provided nary a single data point. Its CA for chrissakes! There are and always have been people coming and going here. Its what we do here! So while we lose some techies, we birth as many or more techies on an ongoing basis. Encinitas has 2 $1B+ unicorn companies at the moment. Those were unheard of in SD just a few years ago and now we have TWO at Mayberry by the Beach! SD economically is in boom times and looks to continue the same for quite some time
BTW at last count we have about 8400 homeless in SD. Thats a colossal tragedy for them and they seem to be mostly congregated in high profile downtown areas but in the grand scheme of things is a pretty small number and has no effect on our economy. It only makes for good fodor for right wing nut jobs who leave a place that treated them very well but prefer to take backhanded swipes on their way out the door about political climates they dont agree with