Existing Home Sales: The Largest Slice of Housing

Key Takeaways

• Existing home sales count closed resale transactions and make up more than 90% of all home sales.
• The figure is based on closings, so it lags the moment buyers and sellers agree to terms.
• Pending home sales lead this report by a month or two, since contracts precede closings.
• Sales volume drives demand for mortgages, brokerage fees, moving services, and home improvement.

What It Is

Existing home sales come from the National Association of Realtors, a trade group, drawing on a representative sample of about 210 multiple listing services. The report covers single-family homes, townhomes, condominiums, and co-ops, divided into four census regions: Northeast, South, Midwest, and West.

The data is based on transaction closings, the point where the sale is legally complete and keys change hands. NAR reports the figure at a seasonally adjusted annual rate. Because the sample captures roughly 40% of multiple listing service data each month, the series is large and not prone to large prior-month revisions.

The Intuition

A home sale is the final step in a process that started weeks earlier. A buyer tours homes, makes an offer, signs a contract, arranges a mortgage, and only then closes. Existing home sales count that last step, so by construction the report describes deals that were struck a month or two ago.

That timing makes it a lagging confirmation rather than a leading signal. The forward-looking cousin is pending home sales, which counts signed contracts before they close. Even so, existing home sales matter because the dollar volume is enormous and touches mortgage lenders, real estate brokers, title insurers, movers, and home improvement retailers.

How It Works

The report carries several figures that together describe market health:

Sales pace = closed transactions, seasonally adjusted annual rate
Median price = the middle sale price, half above and half below
Inventory = homes listed for sale at month end
Months of supply = inventory divided by the monthly sales pace

Months of supply is the gauge of balance. Roughly six months of supply is often described as a balanced market. Below that tilts toward sellers, with rising prices and bidding wars. Above it tilts toward buyers.

The median price needs care. It can rise simply because more expensive homes sold that month, not because every home gained value. A shift in the mix of homes sold, say more luxury sales, lifts the median without any individual home appreciating. For pure price trends, repeat-sales indexes like Case-Shiller are cleaner.

Worked Example

Suppose NAR reports existing home sales at a seasonally adjusted annual rate of 4.0 million, down 3.6% from the prior month, with these details:

Sales pace:          4.00 million   (-3.6%)
Median price:        rose 2%
Inventory:           3.5 months of supply

The falling sales pace alongside tight 3.5-month supply tells a coherent story. Few homes are listed, so buyers compete for limited choices, which keeps prices firm even as the transaction count drops. The 2% median price gain partly reflects that tight supply and possibly a richer mix of homes sold.

The honest read is a slow but seller-favored market: low volume, low inventory, firm prices. An investor watching mortgage lenders would note that fewer transactions mean fewer loan originations, even as home values hold.

Common Mistakes

1. Treating it as a leading indicator. Closings describe past decisions. For a forward read, use pending home sales, which leads by a month or two.

2. Reading the median as pure appreciation. The median moves with the mix of homes sold. A richer mix lifts it without any home gaining value.

3. Ignoring months of supply. The sales count alone is incomplete. Supply reveals whether the market favors buyers or sellers.

4. Confusing it with new home sales. Existing sales count resales of older homes. New home sales count newly built homes and use a different source and timing.

5. Overreacting to one month. Weather, holidays, and rate swings move single months. The trend over several months carries the signal.

Frequently Asked Questions

What are existing home sales in simple terms? Existing home sales count completed resales of previously owned homes each month, including houses, condos, and co-ops. They make up more than 90% of all home sales, so they are the broadest read on the housing market.

How do existing home sales affect investment decisions? Sales volume drives revenue for mortgage lenders, real estate brokers, title firms, and home improvement retailers. A sustained decline in the sales pace often warns of weaker results across housing-linked industries, even when prices stay firm.

What is a real-world example of existing home sales in action? A month where sales fall 3.6% while inventory sits at a tight 3.5 months and prices rise 2% shows a seller-favored, low-volume market. Few listings keep prices firm even as deal count drops.

How can investors use existing home sales effectively? Read the sales pace alongside months of supply to judge whether the market favors buyers or sellers. Use pending home sales as the leading signal, since it precedes closings by a month or two.

How are existing home sales different from new home sales? Existing home sales count resales of previously owned homes and are based on closings. New home sales count newly built homes from the Census Bureau and are recorded when a contract is signed.

Sources

1. National Association of Realtors. "Existing-Home Sales." https://www.nar.realtor/research-and-statistics/housing-statistics/existing-home-sales
2. National Association of Realtors. "Existing-Home Sales Explained." https://www.nar.realtor/research-and-statistics/housing-statistics/existing-home-sales/existing-home-sales-explained
3. National Association of Realtors. "Methodology: Existing-Home Sales." https://www.nar.realtor/research-and-statistics/housing-statistics/existing-home-sales/methodology
4. Federal Reserve Bank of St. Louis (FRED). "Existing Home Sales (EXHOSLUSM495S)." https://fred.stlouisfed.org/series/EXHOSLUSM495S

Disclaimer

This article is educational content only and is not financial advice. Nothing here is a recommendation to buy, sell, or hold any security. Consult a licensed advisor before making investment decisions.