It is more theoretical at this point. That said, worse case scenario is big urban markets like LA, SF, etc take a big localizied hit. It is a little hard to zero in on for a number of reasons. Two of the big ones are 1) we don't have good data on how many people affected from these tail end boom loans just stopped making payments during the recession so they could put themselves in position to get better terms under the many government programs that were forced down lenders' throats and 2) we don't have good data on how many of that same pool got write-offs and write-downs as part of the settlements banks reached with the government just to make them go away. I personally know someone who took out a large HELOC and purposefully stopped paying it just because they didn't want to pay it that was then written off by the lender as part of their settlement to basically give back a few billions in relief to delinquent borrowers. Of course the person who was so chuffed they had gotten away with it about had a cow when the bank 1099'd them the write-off amount and they had to take it in as income for tax purposes. It was all done rather capriciously IMO. The government wanted to appear as if they cracked down and the banks just wanted to get the DOJ off their backs so they just handed out ransom money to borrowers without rhyme or reason as to whom benefited.