Does the Federal Reserve set mortgage rates?

No. The Fed sets the short-term federal funds rate, which banks charge each other overnight. Mortgage rates follow the 10-year Treasury and the broader bond market, which move on inflation and growth expectations. The Fed influences them only indirectly — and mortgage rates sometimes move the opposite way from a Fed decision.

Why did my mortgage rate rise after the Fed cut rates?

Because mortgage rates are priced off long-term bonds, not the Fed's short-term rate. If bond investors expect higher inflation, long-term Treasury yields — and mortgage rates with them — can climb even while the Fed is cutting. The two simply don't move in lockstep.

What is the mortgage-to-Treasury spread?

It's the gap between the 30-year mortgage rate and the 10-year Treasury yield, usually somewhere around 1.5 to 3 percentage points. It widens when lenders and investors see more risk or uncertainty and narrows when markets are calm — and that spread is part of why your rate is what it is.

How Mortgage Rates Are Set (and What Moves Them)

Mortgage rates track the 10-year Treasury yield plus a lender spread — not the Federal Reserve’s rate directly. That single fact explains most of the confusion around rates: the Fed can cut, and your mortgage quote can still go up, because the two live in different parts of the market. Understanding the chain tells you what to watch — and what you can actually control. See today’s averages on the live Mortgage Rates page, then read on for what drives them.

The 10-year Treasury is the anchor

The 30-year fixed mortgage rate shadows the 10-year U.S. Treasury yield more closely than any other single number. Investors who buy mortgage bonds compare them to Treasuries — the safest long-term bond there is — so when the 10-year yield rises, mortgage rates rise with it, and when it falls, they ease.

Why the 10-year and not the 30-year Treasury? Because the average mortgage is paid off or refinanced in about a decade, so its price behaves like a 10-year bond, not a 30-year one. Watch the 10-year yield and you’re watching the tide that moves mortgage rates.

The Fed’s role is real but indirect

Here’s where most people get tripped up. The Federal Reserve sets the federal funds rate — an overnight rate between banks. That directly moves short-term borrowing (credit cards, HELOCs, adjustable-rate loans), but it does not set the 30-year fixed mortgage rate.

Long-term rates move on where the bond market thinks inflation and growth are heading. So if the Fed cuts but investors fear inflation, long-term yields — and mortgages — can rise anyway. It’s common for mortgage rates to move before a Fed meeting, on the expectation, and sometimes opposite to the decision itself. The Fed influences the mood; the bond market sets the rate.

The spread: the lender’s cut

On top of the Treasury yield sits the spread — the extra amount lenders add to cover their costs, risk and profit. Historically it runs around 1.5 to 3 percentage points over the 10-year. The spread isn’t fixed: it widens when markets are volatile or lenders see more risk, and narrows when things are calm. Part of a rate move you feel is the Treasury; part is the spread quietly shifting.

Your rate sits on top of all of it

Everything above sets the market rate — the survey average you see in the news. What you are quoted is that market rate adjusted for your own profile:

Credit score — the single biggest personal lever.
Down payment / loan-to-value — more equity, less risk, lower rate.
Loan type and term — 15-year and government loans price differently.
Points — paying upfront to buy the rate down.

This is the part you control. The market sets the band; your file decides where in it you land — and shopping several lenders decides it further. Work the levers in how to get the best mortgage rate, and compare true all-in cost with the APR Calculator.

Why the small moves matter

Because rate changes compound over 30 years, even a small move is real money. Half a percentage point adds about $32 a month for every $100,000 borrowed — roughly $97 a month, or about $1,160 a year, on a $300,000 loan. That’s why “wait for the perfect rate” is a gamble, not a plan: you can’t time the bond market, and the difference between a good-enough rate today and a hoped-for one later is often smaller than the levers you already control. Test any rate against your own numbers on the Mortgage Calculator, and if you already own, check whether a move is worth it on the Refinance Calculator.

The short version

Mortgage rates = the 10-year Treasury + a lender spread, nudged by what the bond market expects from inflation and the Fed, then personalized by your credit, equity and shopping. Watch the 10-year yield for the direction, and work your own file for the rate you actually get.

Sources

Freddie Mac — Primary Mortgage Market Survey (PMMS) — the weekly average mortgage rates.
FRED — 10-Year Treasury Constant Maturity (DGS10), Federal Reserve Bank of St. Louis.
Federal Reserve — Open Market Operations & the federal funds rate.

Payment figures are principal-and-interest on a 30-year fixed, computed with our own calculators using the standard amortization formula.