The Quick Read: As of September 28, 2026, the costliest mistake is shopping for weeks while the market moves against you. Freddie Mac’s survey has shown four straight weekly increases in the 30-year average. A handful of quotes tells you where the market sits. After that, pick a path and lock.
Key Takeaways
- Freddie Mac’s 30-year average rose four weeks in a row, including a jump of about 19 basis points in the week of September 17.
- Quotes gathered weeks apart are not comparable. The older ones are stale.
- A few reputable quotes are enough. More shopping past that point costs you money.
- The Federal Reserve raised its target range on September 16, and the MBA reports the highest contract rate since May 2024.
- Supply is at a decade high, so buyers have room to negotiate on price even as financing gets pricier.
What Changed This Month
The 30-year fixed has climbed for a month, and the pace picked up in mid-September. Freddie Mac’s survey put the 30-year fixed at 7.03% for the week of September 24, up from 6.95% the prior week. A year earlier it was 6.30%.
The biggest single step came a week before. In its release for September 17, Freddie Mac reported the 30-year at 6.95%, up from 6.76%. That is 19 basis points in one week. A basis point is one hundredth of a percentage point.
Add it up. The September 3 release showed 6.71%, up from 6.66% the week before. From August 27 to September 24, the average rose 37 basis points. That 37 is my arithmetic from Freddie’s published figures.
The Mortgage Bankers Association measures something different: rates on actual applications. For the week ending September 18, its 30-year conforming contract rate rose to 7.12% from 6.97%. The MBA’s chief economist called that the highest since May 2024, and said the adjustable-rate share of applications reached 9.8%. Refinancing fell to its slowest pace since February 2025.
Mortgage News Daily runs a daily index, and it sits higher still. Its front page on September 29 showed the top-tier 30-year fixed at 7.50%, the first time since April 30, 2024.
Three numbers, three answers. Freddie’s 7.03% is a weekly average. The MBA’s 7.12% comes from applications. Mortgage News Daily’s 7.50% is a daily index of top-tier pricing. They differ by method and timing. None of them is a quote for you.
The Fed added pressure. On September 16, the Federal Reserve voted 12–0 to raise the target range by 25 basis points to 3¾–4%. Its statement said inflation “remains elevated.” It was the first hike since 2023.
Here’s a catch, though. The hike did not cause the whole jump. The July minutes show markets had already priced in a September move. The MBA points to Treasury yields, energy prices tied to the Iran war, inflation and federal debt as the bigger drivers, and it puts the 10-year Treasury near 5.2%. That is the MBA’s characterization; I did not pull the Treasury print itself.
Why Is Shopping Too Long the Costly Mistake?
Because the market moves while you shop, and the quotes you collected early go stale. Picture a borrower who gathers a quote in the first week of September and another in the last week. The two are not comparable, because the market in between moved 37 basis points against them.
Freddie Mac’s own chief economist has said shopping around can save borrowers thousands. That’s true, and I agree. But that advice assumes the quotes are gathered close together. It does not support a month of comparison.
Here is the plain logic. Rate quotes are snapshots. A quote from three weeks ago described a market that no longer exists. If you line it up against a quote from this morning, you are not comparing lenders. You are comparing dates.
So collect your quotes in a tight window, ideally within a few days of each other. Ask each source for the same loan type, on the same day, on the same terms. Then the differences you see are real differences.
How many is enough? My read: a handful of reputable sources. Three or four tells you where the market is and where the outliers sit. Past that, the marginal gain shrinks, and the market drift eats whatever you might save.
Now run a hypothetical. If a rate moves from 6.75% to 7%, that is a quarter point. Over a long loan, a quarter point is real money. Stalling for two more weeks to squeeze out a slightly better quote can cost more than it saves when the whole market is climbing.
Wait, there’s more. Waiting for a dip is not free. Over the past month, the data show direction, and the direction has been up. I am not forecasting. Nobody can say whether rates keep rising or fall back. The Fed’s September projections point to possibly one more hike this year, per CNBC’s coverage, and the next meeting is October 27–28. But a forecast that might go either way is a poor reason to leave a file floating.
The Mistakes I’d Watch For
Treating the benchmark as your rate. Freddie’s survey describes conventional, conforming purchase loans with 20% down and excellent credit. It is also an average. If your file looks different, your quote will too. Use the survey to read direction, not to price yourself. Every figure here varies by lender and program — guidelines, property type, leverage, and credit profile all apply.
Comparing quotes from different days. Covered above, and worth repeating. Same day, same terms, or the comparison means nothing.
Floating when you like the number. A rate lock is an agreement that holds a quoted rate for a set period. If you like where the quote sits and the deal makes sense, lock it. In a climbing market, floating is a bet that the direction reverses. That bet may pay. It may not. Decide whether you can afford to lose it.
Waiting for spring 2021 to come back. The low this year was 6.01% on February 19, the lowest since September 2022, per Freddie Mac. That is 102 basis points under the September 24 print. It was a nice window, and it closed. Planning around its return is not a plan.
Ignoring the structure of the loan. Some borrowers only look at the number and never at the product. Rising fixed rates push more people toward adjustable loans, and the MBA’s 9.8% ARM share shows it. An adjustable loan is not wrong. It carries risk that resets later, and you should understand that before you sign.
What It Means for Real Estate Investors
Investors have a wrinkle that owner-occupants don’t. Their loans often qualify on the property’s rent rather than on personal income documents, subject to lender guidelines. Higher rates still hit that math. A property that covered its debt comfortably in February may cover it thinner today.
That does not make investing dead. It makes the deal-level math matter more. Price the purchase at today’s cost of money, not last spring’s. If the property only works at yesterday’s rate, it doesn’t work.
The investor lane is also growing. Optimal Blue data, as reported by Faribai on September 13, show investor and DSCR loans at 35% of non-QM production in August 2026. That is up from 28% in August 2025 and 22% in August 2022. This is a secondary report of Optimal Blue’s data, so treat it that way. A DSCR loan is one where the property’s rental income, measured against its debt payments, does most of the qualifying work.
Growth brings its own caution. An opinion piece from June warned that the boom can mask rising risk. That is background and opinion, but it lines up with what I’d tell any investor: don’t let a busy market talk you into a thin deal.
If you want the mistakes that trip up investor files specifically, I laid them out in the 7 most common DSCR application mistakes. Read it before you submit anything.
For how the programs are built and what they qualify on, see our loan options page. It carries the current guidelines. This column states none, on purpose.
What About Buyers and Owners With Equity?
Demand is cooling on the application side. The MBA’s unadjusted Purchase Index for the week ending September 18 was 11% below a year earlier. The Refinance Index was 62% below a year earlier. Refinancing at this level makes sense only for borrowers with a clear reason to do it.
Yet housing has not stalled. NAR’s August report, released September 10, showed existing-home sales down 2.0% from July and 1.2% from a year earlier, at a seasonally adjusted annual rate of 3.98 million. Inventory reached 1.62 million homes, up 5.9% year over year. Supply stood at 4.9 months, which NAR says is the highest in over ten years.
NAR’s chief economist said that supply gives buyers better opportunities to negotiate. That is the silver lining. Financing costs more, but sellers have more competition. A buyer who shops the price as hard as the rate can recover some of what the market took.
Two data sets disagree here, and it’s worth saying so. NAR shows sales holding up, still up 1.6% year to date. The MBA shows applications falling. NAR counts closings, which lag. The MBA counts applications, which lead. My read is that the application data is the better hint of where the closings are headed.
My Take
Here is my opinion, stated as one. Over-shopping is the mistake I would least like to make right now. A borrower who spends a month chasing the last small improvement in a quote is likely to lose more to market drift than they gain from the chase.
I’m not telling anyone to rush into a bad deal. Rushing and deciding are different things. Do your homework, get a handful of comparable quotes, and then decide.
I also think the rate-timing instinct is mostly a trap. Most people who wait for a dip are guessing. The people who do well over eighteen years in lending are not the ones who called the top or bottom. They are the ones who bought at a price they could carry and stayed with it.
Could rates fall back next month? It’s possible, and nobody can rule it out. But the honest position is that no one knows, and a plan that depends on knowing is not a plan.
What I’d Do Now
None of this is advice to buy or sell a particular property. It’s how I’d run the process.
1. Set the window. Pick a few days to gather quotes, and finish inside it.
2. Compare like with like. Same loan type, same terms, same day.
3. Stop at a handful. Three or four reputable sources is plenty.
4. Decide, then lock. If you like it, lock it. A lock is a tool for removing uncertainty, not a commitment to overpay.
5. Stress the deal. For investors, test the property against a rate somewhat higher than today’s, so a further move doesn’t sink it.
6. Negotiate the price. With supply at a decade high, price is the lever you still control.
7. Keep your file steady. New debt or job changes mid-application can complicate things.
If you’re weighing a purchase or a refinance this fall, Lendmire can walk you through how the current programs fit your file.
For the end-to-end picture of how these loans work — qualification, structures, and the full process — see Lendmire’s complete DSCR loans guide.
Frequently Asked Questions
How many mortgage quotes should I get?
Three or four from reputable sources is enough to see where the market sits. Gather them within a few days of each other, on the same terms. More than that usually adds little, and the market can move while you wait.
Is Freddie Mac’s weekly number the rate I will get?
No. Freddie’s survey is an average tied to conventional, conforming purchase loans with 20% down and excellent credit. Your quote depends on your file, the property and the day. Use the survey to read direction. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.
Should I wait for rates to come down?
Nobody can say whether they will. Over the past month, the direction has been up, and the Fed’s projections point to possibly another hike this year. Waiting for a dip is a guess. A decision based on what you can carry today is sturdier.
Why do the MBA, Freddie Mac and Mortgage News Daily show different numbers?
They measure different things at different times. Freddie publishes a weekly average, the MBA reports a contract rate on applications, and Mortgage News Daily runs a daily index of top-tier pricing. The gap between them is method and timing, not an error.
Does a Fed hike mean my mortgage rate jumps by the same amount?
Not directly. Mortgage rates track longer-term yields more closely than the Fed’s short-term target. The MBA cites Treasury yields, energy prices, inflation and federal debt as the drivers of this month’s move.
About Lendmire
Lendmire, NMLS# 2371349, is a mortgage broker with two platforms: DSCR investor lending across 41 markets, including Washington, D.C., and consumer mortgage programs in 16 states, all arranged through wholesale lending partners. This column is written by Lendmire’s founder and reflects the market as of its publication date; program terms and availability are set by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.
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References
2. MBA Weekly Applications Survey, September 23, 2026
3. Federal Reserve FOMC statement, September 16, 2026
4. CNBC, Fed rate decision, September 16, 2026
5. Freddie Mac release, February 19, 2026
6. Faribai, citing Optimal Blue, September 13, 2026
7. NAR August existing-home sales, September 10, 2026
This article is part of Lendmire’s Mortgage News series — every loan program’s qualification details, guidelines, and scenarios live on the loan options page.
Related reading: How to Navigate the Homebuying Process: A Step-by-Step Guide for First-Time Buyers · Mortgage Rates and Trends: What You Need to Know to Make Informed Decisions · Common Mortgage Myths Debunked
Brandon Miller
Founder & CEO, Mortgage Loan Originator, Lendmire LLC
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Compliance and disclosures. Lendmire (NMLS# 2371349) is a licensed mortgage broker and is not a direct lender, depository institution, financial advisor, or tax professional. Content in this article is general market analysis and educational information — not financial, legal, or tax advice for any specific situation. Lendmire does not guarantee loan approval; every transaction is subject to underwriting by the funding lender. Mortgage pricing and loan program guidelines are subject to change at any time without notice and vary by borrower characteristics, property type, and state regulations. Lendmire complies with Equal Housing Opportunity. Licensure verification: NMLS Consumer Access.