08/18/2026
Okay, this is a longer one… but stay with me because if you’ve been wondering WHY mortgage rates are still being so stubborn, this is a big piece of the puzzle. 👀
We talk a lot about inflation, the Fed, jobs reports, etc. when we talk about mortgage rates.
But there’s something else happening in the bond market that I think is worth paying attention to: the amount of debt the U.S. government is issuing.
Right now, the 10-year Treasury yield is hovering around 4.7% after reaching roughly 4.74% this morning. That matters to us in the mortgage world because mortgage rates tend to move in the same general direction as longer-term Treasury yields and mortgage-backed securities. (StoneX)
And lately… yields have been getting beat up.
So what does government debt have to do with your mortgage rate?
Look at the chart. 👇
In 2020 — during COVID, stimulus programs and a massive economic emergency — gross Treasury issuance jumped to around $20.8 TRILLION.
At the time, that number was crazy.
Fast forward to 2025…
Over $30 TRILLION. 🤯
And we’re not in the middle of a COVID-style shutdown anymore.
A huge amount of Treasury debt has to continually be issued and refinanced. When there are more bonds hitting the market, investors have to be willing to buy them.
And if investors aren’t willing to buy them at lower yields?
👉 Yields have to become more attractive.
Higher Treasury yields put pressure on borrowing costs throughout the economy — including mortgages.
That’s part of why watching the Fed alone doesn’t tell you everything about where mortgage rates are headed.
The bond market is also looking at inflation, oil prices, government deficits, Treasury supply, economic data and what investors are willing to pay for all of that debt. Concerns over inflation and fiscal pressures have been major drivers of the recent global bond selloff. (Y100 WNCY)
Now for a little GOOD news today…
We actually got some softer economic data this morning.
July housing starts fell 12.4%, much more than expected, with single-family starts falling 9.9%. (Reuters)
That helped Treasuries recover from their earlier lows, with the 10-year yield backing off its morning high. (The Wall Street Journal)
So while the bigger picture is still putting pressure on rates, we did get a little relief as the morning went on.
What does all of this mean if you’re buying a house?
It does NOT mean “don’t buy.”
And it definitely doesn’t mean I can tell you exactly where rates will be next month. 😂 If anyone tells you they can predict rates with certainty, run.
What it DOES mean is that there are a lot more moving pieces behind your mortgage rate than “Did the Fed cut rates?”
This is also why I’m such a big believer in actually structuring a mortgage around the individual buyer — looking at loan programs, seller credits, rate buydowns, down payment options and the overall payment instead of getting hung up on one headline about interest rates.
Sometimes the difference isn’t waiting for the “perfect” market.
It’s knowing how to work with the market we have. 🏡
And THIS is the kind of stuff I’m watching every day for my borrowers. 📈📉
Mortgages with Samantha - Certainty Home Lending 📍 Licensed in GA and AL 📍