This is really interesting. Nothing like it exists in the US as far as I know. I am ignorant of current and previous Danish mortgage interest rates. Assuming a

This is really interesting. Nothing like it exists in the US as far as I know. I am ignorant of current and previous Danish mortgage interest rates. Assuming a 2% mortgage from a few years back, and current interest rates at say 6%, I would expect to buy back at less than 85% value.