Short answer. A balanced housing market traditionally has ~6 months of supply — the time it would take to sell every listed home at the current sales pace. Below 4 months indicates a seller's market; above 7 months indicates a buyer's market.
| Metric | Balanced | Seller's Market | Buyer's Market |
|---|---|---|---|
| Months of supply | 5–6 months | <3 months | >7 months |
| Days on market | ~30–45 days | <14 days | >60 days |
| List-price capture | ~100% | >102% | <97% |
| Annual price change | 2–3% | 5–10%+ | Flat or declining |
Months-of-supply is the canonical metric used by the National Association of Realtors and most housing economists to assess market balance. It measures the number of months it would take to sell every listed home at the current monthly sales pace.
The thresholds
- Under 3 months — Strong seller's market. Multiple offers common, prices rising rapidly, contingencies waived.
- 3–4 months — Seller's market. Sellers retain pricing power, but transaction friction is reduced.
- 5–6 months — Balanced market. Neither side has structural pricing leverage. The traditional historical norm.
- 7–9 months — Buyer's market. Sellers compete for buyer attention, price reductions become common, contingencies return.
- Over 10 months — Distressed market. Inventory accumulating faster than it can clear; price declines often follow.
The U.S. modern record
NAR's existing-home months-of-supply series (1999–present) has ranged from a low of 1.6 months (early 2022) to a high of 12.0 months (mid-2008). Across the full window, the median reading has been roughly 5.5 months — just below the textbook balanced figure.
Why the metric became less reliable post-2020
Months-of-supply assumes inventory is flowing onto the market in a roughly normal pattern. The rate-lock era has compressed inventory in a non-traditional way: months of supply has remained low (3–4 months in 2024) not because demand is overheated but because sellers are not listing. The metric still reflects the supply-demand balance for transactions that do occur, but it has decoupled from broader housing-market health. The rate-lock era explainer walks through this dynamic.
Practical buyer guidance
Months-of-supply is most actionable at the metro level, not the national level. National readings can mask large divergences — Texas and Florida metros may show 6+ months of supply while Northeastern and Midwestern metros show 2–3. The buyer's effective leverage depends on the local reading, not the national one.
Related
- Housing inventory dashboard (1999–2024)
- Q&A — Lowest months of supply ever
- Q&A — Rate-lock effect on inventory
- Q&A — What is the rate-lock effect?
- The Rate-Lock Era, 2022–Present
Sources
U.S. Census Bureau Survey of Construction; National Association of Realtors Existing Home Sales report; Freddie Mac Primary Mortgage Market Survey; National Bureau of Economic Research Business Cycle Dating Committee.