If you own a home, the “prices are still rising” story you keep reading is technically true and functionally wrong. The S&P Cotality Case-Shiller index for May came out yesterday. National prices rose 1.1% year over year. Inflation ran roughly three points higher. That is the twelfth straight month your equity lost purchasing power.
The 1.1% number is the softest annual gain the national index has printed in years. Chicago led the country at 6.9%, New York at 4.2%, Cleveland at 3.1%. Real gains, real markets, real momentum. Then Las Vegas fell 1.9%, Seattle fell 1.8%, Denver fell 1.8%. Those are nominal dollars, before any adjustment for inflation. If you own a house in one of those three, it is worth fewer actual dollars today than it was in May 2025.
Here’s what they’re not telling you in the press releases. A 1.1% nominal gain against 4.2% inflation is not “the housing market is up.” It is your equity being repriced downward, in quiet. S&P said it in plain language: “For the 12th consecutive month, U.S. home values fell in real terms.” Bought a $500,000 house in May 2025? On paper it is worth about $505,500 now. But $505,500 in mid-2026 buys what roughly $485,000 bought a year ago. That is a $15,000 haircut in what your equity actually purchases, on the year the headlines called an “up” year.
The 2020 to 2024 pattern of home-as-appreciation-machine is over. Prices rose more than 40% in that stretch, well ahead of inflation, and the reflex it built (“prices always go up”) is exactly the reflex to check right now. May 2025 through May 2026 is the twelfth month in a row where the gap flipped the other way. Twelve months is not a bad quarter. It is a regime.
Three moves that flow from that.
If you bought at peak in 2021 or 2022 and are waiting for appreciation to bail out a break-even sale, run the number cold. On a $400,000 loan at 6.58% (Freddie Mac’s July 23 survey rate), you’re paying roughly $2,550 a month in principal and interest, of which about $2,190 in year one is interest. Even if your home price ticks up 2% a year from here, that is $8,000 of paper gain against roughly $26,300 of interest paid that year. The house is not making you money at those rates. Fine. Just do not treat waiting like it costs nothing.
If you’re weighing rent versus buy, the tie-breaker of the last five years (“houses always go up”) is not intact in most of the West and Sun Belt right now. Use our mortgage calculator and a rent-versus-buy math with a 1% real appreciation assumption, not 5%. If it still says buy, buy. Do not let old math answer for you.
If you carry a HELOC or a second mortgage, your equity cushion is thinner than the paper number implies. That is a reason to pay it down faster, not a reason to draw more against it. Not optional if your first mortgage is above 5.5%.
The one bright note is boring and worth saying: Chicago, New York, and Cleveland are actually keeping up with or beating inflation. Not everywhere is Vegas.
File this away for your next refinance conversation. Twelve months of real decline is a trend, not a blip, and the “housing always goes up” line from 2022 is not proof against 2026 data.
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