Months of supply explained in plain words
Months of supply tells you how many months it would take to sell every home now for sale, if homes kept selling at the recent pace and no new ones came on. A lower number points to more competition among buyers. A higher number points to more choice. It is a gauge, not a forecast.
Tell me what you are looking for, or ask for a home value, and I will help you narrow it down. Use the buyer consultation form or the home value request.
How it is figured
Take the number of active listings and divide by the number of homes that sell in a month. If 4,000 homes are for sale and 1,000 sell each month, that is four months of supply. I use round numbers here only to show the idea. Real figures come from the monthly market report, and different reports figure it slightly differently, so always check how a source defines it.
A real reading from my September report
My September 2026 update reported an absorption rate of 3.76, compared with 3.83 the September before. Absorption is the same idea expressed from the other side, and I read it as months of supply for that report. The number barely moved, which tells me the balance between homes for sale and homes selling was about the same year over year. It does not tell me about any single neighborhood.
How people usually read the number
A few months of supply is often described as a tighter market where buyers compete more.
A larger number is often described as a market with more choice and more room to negotiate.
The middle range is often called balanced.
Those labels are rules of thumb. I do not use one cutoff as a law, because the right reading depends on the area and the price range.
Why your price range matters most
A county-wide number can hide big differences. Homes under a certain price may move fast while higher-priced homes sit. When you shop, ask for the months of supply in your price range and area, not only the headline.
What to do with it as a buyer
If supply is low in your range, get your pre-approval ready, know your priorities and be ready to move when a good home appears. If supply is higher, you may have more time to compare and more room to ask for repairs or help with closing costs, though no seller has to agree.
What to do with it as a seller
If supply is low, a well-priced home can draw attention fast. If supply is higher, price and condition matter even more because buyers have other homes to compare. Ask me for a home value so we can see the homes that compete with yours.
What it does not tell you
Months of supply is a snapshot of the past pace. It cannot see a new neighborhood opening, a rate change next week or a large employer arriving. Read it with days on market and inventory.
A worked example with invented numbers
These numbers are made up to show the arithmetic. Months of supply is the number of homes for sale divided by the number of homes that sell in a month. If 300 homes are for sale and 100 sell each month, the supply is 3 months. If sales slow to 75 a month while the same 300 are for sale, the supply is 4 months. Nothing about the homes changed, and the number moved because of the pace of sales. That is why I look at the count of sales behind the figure and not only the headline.
A checklist for using the number
Ask which area and which price range the number covers.
Ask how many sales are behind it.
Compare it with the same month last year, not only last month.
Look at the days on market for the same period.
Ask me how homes like the one you want are moving.
Common mistakes
Treating a countywide number as the market for your street.
Assuming a low number guarantees a bidding war.
Assuming a high number guarantees a discount.
Ignoring that new construction can change the count.
My take: [ROB INPUT: add one or two sentences of your own view before this is published.]
Frequently asked questions
What is a normal months of supply?
There is no single normal. People use rules of thumb, but I read it against the same month last year and for your price range.
Is months of supply the same as absorption rate?
They describe the same relationship from opposite sides. Check how each report defines the term.
Does low supply mean prices will rise?
Not by itself, and I do not forecast prices. It means more competition among buyers for the homes available.
Sources, checked October 21, 2026
Where to go next
Keep reading: days on market explained, what more or fewer homes mean, how to read a market report. Browse all posts in Market and rates.
Tell me what you are looking for, or ask for a home value, and I will help you narrow it down. Use the buyer consultation form or the home value request.
This is general information, not lending, tax or legal advice. Talk to your lender, your CPA and your South Carolina closing attorney about your own situation. Rob "Red" Redziniak, Keller Williams Greater Charleston, Dave Friedman Team.
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