Contrary to popular belief, rate cuts are a little more complicated than just a 50 basis point cut (.5% reduction). Let me jump into a 101 version of what this means:
The Fed recently made a 50 point basis cut on September 18. That means the Fed is lending money at a 1/2% discount from what they were lending. The current Fed rate is: 4.75 - 5.00%, a change from 5.25 - 5.50%.
Now, this would lend you to believe that if you're buying a home, you would get a 1/2% drop in your interest rate. Not so fast. Lenders are able to borrow at 4.75-5.00%, but they evaluate different economical factors to determine where they will place their benchmark rates when lending.
For example, if you've ever bought a home before you know that each day interest rates can be slightly higher or lower. That's not because the Fed changes from day-to-day, it's because lenders are evaluating current conditions and making risk judgements on what rates they're willing to offer.
A good way to think of this is: if the Fed is lending at 4.75%, a lender might charge 6.50% and that would mean that they make 1.75% on the loan they are offering. So, if a lender believes the Fed will bring rates down further, or we see positive economic data, lenders may be more willing to take a smaller margin (the same is true in reverse).
What a lender DOESN'T want to do is get into a loan with a small margin and then end up locked in with that small margin for an extended period of time.
This turns into a chess match of attracting new customers, but not over extending loans. That's why you see lenders offer lower rates BEFORE rate cuts when good news comes out with things like inflation, unemployment numbers, or jobs creation, amongst other things.