The housing market is starting to look a bit like Dr. Jekyll and Mr. Hyde, at least when it comes to homeowners’ equity, according to data out Monday from research firm Black Knight Financial Services.

For some homeowners, properties are again becoming ATMs — and in many cases, well-paying ones.

Even as the amount of equity owners hold in their homes hovers near a 10-year high, owners pulled the most cash out of their homes since 2009 last year, Black Knight said.

“Cash-out refinance transactions” netted homeowners a total of $68 billion in 2015. That’s more than $60,000 per borrower on average. California accounted for 42% of that total, with an average of $96,000 per borrower.

There’s a big difference between the 2015 transactions and those during the mortgage mania of the early 2000s, though. The average loan-to-value ratio in 2015 was 67%, meaning homeowners still retained 33% of the equity in their homes. That’s down from a peak of 76% in 2008.

But Black Knight also looked at people who have no equity to tap. The number of homeowners who owe more on their mortgages than their homes are worth declined 31% in 2015. Such “underwater” properties now make up 6.5% of all mortgages, still well above normal levels.

But for homes in the lowest price tier, that share is 16.2%. Put another way, over half of underwater mortgages are for loans on homes in the bottom 20% of prices, the most ever. Improvement in the negative equity rate among this tier of owners has lagged all the others since home prices began recovering in 2012, Black Knight noted.