The 30-year fixed mortgage rate in the US now sits at 6.58% (Freddie Mac, week ending July 23, 2026). Meanwhile, national home prices rose just 1.1% year-over-year as of May 2026, according to the S&P Cotality Case-Shiller National Home Price Index — and after adjusting for 4.2% inflation, real home values have actually declined for 12 straight months. In other words, the cost of borrowing to buy a house right now runs at nearly six times the pace the house itself is gaining value.
Compare that to the S&P 500: its average annual return over the past 30 years, with dividends reinvested, sits around 10.3% as of the end of May 2026, according to historical analysis from Trade That Swing. Pull that window across any 30-year stretch since 1926 and the number holds remarkably steady, staying in the 8%-15% range through World War II, the 2008 crisis, and the pandemic recession alike.
On paper, the answer looks obvious: why bother with a mortgage when stocks perform so much better? But that comparison skips the one variable that actually decides everything — leverage.
Housing Leverage Cuts Both Ways, It Isn't a Guaranteed Win
When you take out a mortgage with 20% down, you're controlling 100% of a home's value with only a fifth of that value in cash. If the home appreciates, your gain is calculated on the full value of the property — not just the down payment you put in. That's exactly why, over the past decade (2016-2026), as the Case-Shiller National Index compounded at 6.39% annually, leveraged homeowners actually pocketed a return on their own capital far higher than that 6.39% figure — because they'd only put a small slice of the purchase price on the table themselves.
The problem is that leverage cuts symmetrically in both directions. When home prices are only rising 1.1% a year, as they are now, while the mortgage financing that purchase costs 6.58%, the borrower is paying far more in interest than their asset is gaining in value. Leverage that used to multiply gains now multiplies costs instead. And this isn't theoretical: the May 2026 Case-Shiller report found an almost 9-percentage-point gap between the strongest market (Chicago, +6.9% year-over-year) and the weakest (Las Vegas, -1.9% year-over-year) — meaning in some cities, people who just took out a mortgage this year are watching their home lose value while still paying full interest on it.
Stocks, by contrast, don't need leverage to produce double-digit long-run returns. You buy an index fund or an S&P 500 ETF with cash in hand, there's no bank collecting interest behind the scenes, and the historical record has consistently delivered 8-15% annual returns across any 30-year window. The critical difference: housing needs debt to make its returns look impressive; stocks don't.
A Tale of Two Down Payments
Picture two people, each holding $80,000 in cash today.
The first person uses that $80,000 as a 20% down payment on a $400,000 house, taking out a $320,000 mortgage at 6.58%. If the home appreciates in line with the past decade's average of 6.39% a year, it's worth roughly $743,000 after 10 years — a gross gain of about $343,000. But out of that gain, this buyer will have already paid something close to $180,000-$200,000 in mortgage interest over those first 10 years (depending on the amortization schedule), on top of property taxes, insurance, and maintenance that typically run 1-2% of the home's value annually. If the house instead appreciates at today's actual pace of 1.1% a year, the picture flips entirely: the home is worth only about $446,000 after 10 years — a gross gain of $46,000, well below the total interest already paid to the bank.
The second person keeps renting and puts that same $80,000 into an S&P 500 index fund, along with the monthly difference between what a mortgage payment would cost and what rent actually costs (assume roughly $500 a month, since principal-and-interest payments on a home this size typically run well above rent on a comparable unit). At a 10.3% average annual return, that $80,000 alone grows to roughly $213,000 in 10 years — before even counting the ongoing monthly contributions. This person owes nobody interest, pays no property tax, and can access their money any time without going through the long, costly process of selling a house — where a real estate agent's commission alone typically runs 5-6% of the sale price.
None of this means a house is always the wrong call. If home prices return to their higher historical pace, mortgage leverage can make the return on that same down payment blow stock returns out of the water. But that's a bet on the future direction of home prices — not a guarantee.
What You Actually Need to Calculate Before Deciding
The more useful question isn't "which one wins, a house or stocks." It's this: what's the expected rate of home-price appreciation in the specific market you're buying into, and is that number higher or lower than the mortgage rate you're being offered today? If your mortgage rate is higher than the expected appreciation for that area, leverage is working against you, not for you — and you need a stronger reason than "it'll pay off" to buy anyway, like long-term housing stability or the space a growing family actually needs.
Housing and stocks aren't mutually exclusive choices — most people end up needing both at different points in life. But if the goal is purely building wealth through a monthly payment, the numbers on paper right now are making a louder case for stocks than most people give them credit for.