Fed’s housing market ‘reset’ has officially set off the second-biggest home price correction of the post-WWII era

In June, Fed Chair Jerome Powell told reporters that the overheated U.S. housing market—which saw U.S. home prices rise over 40% in just over two years—needed a "reset." And higher mortgage rates, he said, would slowly bring "balance" back to the market.

“We saw [home] prices moving up very very strongly for the last couple of years. So that changes now...I’d say if you are a homebuyer, somebody or a young person looking to buy a home, you need a bit of a reset. We need to get back to a place where supply and demand are back together," Powell said.

While Powell was unsure what the Fed's housing "reset" would mean for home prices, Fortune speculated it meant prices would fall. It looks like we were right.

According to the latest Case-Shiller report published on Tuesday, U.S. home prices fell another 0.8% in September. That marks the third consecutive monthly home price decline since Powell's June statement. Prior to 2022, the seasonality adjusted Case-Shiller National Home Price Index hadn't published a month-over-month decline since the housing crash bottomed out in 2012.

This latest Case-Shiller report—which found a 2.2% price decline in U.S. homes since June—means we've moved into the second biggest home price correction of the post-World War II era. On paper, it's tied with the 2.2% drop between May 1990 and April 1991, however, given that the index is a three-month average, we know the October numbers will surpass that mark. That said, it's still far below the 26% peak-to-trough decline that occurred between 2007 and 2012.

How can this 2.2% drop already qualify as the second biggest correction of the post-World War II era? It boils down to the fact that, historically speaking, home prices on a national basis have been fairly sticky. Sellers resist going below market comps unless economics forces their hand.

View this interactive chart on Fortune.com

“I think that the religion people had from 1946 to 2008, that housing prices always go up, is dead. My parents believed that it was literally inconceivable for [home] prices to go down,” Glen Kelman recently told Fortune. The ensuing 2008 housing crash broke that “religion” and taught buyers and sellers alike, he said, that home prices can indeed fall. “So folks respond [now] to that [correction] with almost PTSD, and they pull back much more quickly.”

It isn't just average Joes who know prices can fall—the 2008 example also made institutional firms and builders more alert. Those firms are a big reason why home prices are falling so fast right now.