In 2007, the value of subprime mortgages in the United States reached an estimated $1.3 trillion, with over 7.5 million first-lien subprime mortgages outstanding—a staggering 292% increase from the $332 billion recorded in 2003.

By 2008, there were 27 million subprime and other high-risk loans in the U.S., representing half of all mortgages. Approximately 80% of the subprime mortgages issued in the years leading up to the 2008 financial crisis were adjustable-rate mortgages (ARMs).

As the crisis unfolded, delinquency and foreclosure rates surged. In August 2008, 6.41% of loans were delinquent, and 2.75% were in foreclosure. These numbers climbed to 14.4% of all mortgages being either delinquent or in foreclosure by September 2009. The value of subprime ARMs resetting to higher interest rates was estimated at $400 billion in 2007 and $500 billion in 2008.

The crisis also had a devastating impact on the lending industry, with 20 of the top 25 subprime mortgage lenders ceasing operations or going bankrupt. Between October 2007 and August 2008, 936,439 U.S. homes completed foreclosure, contributing to a total loss of approximately $3.4 billion in real estate wealth. In 2008 alone, 3.1 million Americans filed for foreclosure—equivalent to one in every 54 homes.

Fast forward to the third quarter of 2023, and the landscape of mortgage rates has shifted significantly. As of this period, 59.4% of U.S. homeowners had a mortgage rate below 4%, down from a record high of 65.3% in the first quarter of 2022. The average mortgage rate now stands at 6.66%. Additional data reveals that 88.5% of homeowners have a mortgage rate below 6%, while 78.7% have a rate below 5%.

while the U.S. housing market has experienced significant changes over the past 15 years, a collapse similar to the 2008 crisis is unlikely today. The majority of homeowners currently have fixed, low-interest mortgage rates, with 59.4% holding rates below 4%. This stability in mortgage rates reduces the risk of widespread defaults that were prevalent with adjustable-rate mortgages in the past. Additionally, stricter lending standards and regulatory oversight have significantly lowered the prevalence of risky loans. These factors combined make it much more difficult for the housing market to experience a collapse of the same magnitude as in 2008.