New-Home Months Supply vs 30Y Mortgage Rate
Live side-by-side comparison with current values, changes, and key statistics.
Why This Comparison Matters
When mortgage rates rise, demand falls faster than builders cut starts, pushing months supply higher. When rates fall, demand returns faster than inventory clears, pulling months supply down. Readings above 7 months historically signal builder stress; below 5 signal seller market conditions. The ratio distills the housing cycle into one number.
Cross-Asset Analysis
Months Supply of Houses captures months of unsold housing inventory, below 4 = seller's market, above 6 = buyer's market, whereas 30Y Mortgage Rate reflects 30-year fixed mortgage rate, the primary driver of housing affordability, and the difference between how they move is what the peer pair relationship is really about. Factor exposures embedded inside Months Supply of Houses and 30Y Mortgage Rate drive their relative performance, with growth-value, large-small, and domestic-international all surfacing in the spread. Factor tilts expressed through the Months Supply of Houses-30Y Mortgage Rate selection allow managers to adjust style exposure without changing their overall asset allocation.
Pairs trading between Months Supply of Houses and 30Y Mortgage Rate is common because the spread is more stationary than either individual price, suitable for mean-reversion strategies. Mid-cycle stretches see the Months Supply of Houses-30Y Mortgage Rate spread compress as macro volatility stays low and factor returns normalize. Index construction choices inside Months Supply of Houses and 30Y Mortgage Rate, including weighting methodology and inclusion rules, create persistent tilts that show up in the spread.
Idiosyncratic events in a concentrated peer, such as a single mega-cap earnings miss inside Months Supply of Houses, can move the Months Supply of Houses-30Y Mortgage Rate spread without broader factor signal. Inside the Housing universe, Months Supply of Houses and 30Y Mortgage Rate represent different flavors of the same underlying exposure.
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Frequently Asked Questions
What is the relationship between Months Supply of Houses and 30Y Mortgage Rate?+
Months Supply of Houses and 30Y Mortgage Rate are connected through shared asset class exposure with different factor tilts. When the underlying asset class shifts, both respond, though with different sensitivities and at different speeds. The spread between Months Supply of Houses and 30Y Mortgage Rate captures the specific macro signal that flows through this relationship.
When does Months Supply of Houses typically lead 30Y Mortgage Rate?+
Months Supply of Houses tends to lead 30Y Mortgage Rate during rotation episodes between the two factor exposures. In those periods, moves in Months Supply of Houses precede corresponding moves in 30Y Mortgage Rate by days to weeks, depending on the transmission channel and the depth of each market.
How are Months Supply of Houses and 30Y Mortgage Rate historically correlated?+
Long-run correlation between Months Supply of Houses and 30Y Mortgage Rate varies by regime. Peers in the same asset class are highly correlated in direction, with the spread reflecting factor tilts and rotation dynamics. The correlation is not stable: it shifts with macro conditions, and the periods when it breaks down are often the most informative moments in the Months Supply of Houses-30Y Mortgage Rate relationship.
What macro conditions drive divergence between Months Supply of Houses and 30Y Mortgage Rate?+
Divergence between Months Supply of Houses and 30Y Mortgage Rate typically arises from index reconstitution, mega-cap earnings surprises, or liquidity differences between the peers. When one asset's idiosyncratic drivers dominate, the spread moves in ways that the common macro story does not predict, which is usually a signal to look more carefully at the specific drivers at work in Months Supply of Houses or 30Y Mortgage Rate.
Is Months Supply of Houses a hedge for 30Y Mortgage Rate?+
Peers like Months Supply of Houses and 30Y Mortgage Rate do not hedge each other; both rise or fall with the shared asset class, and using the pair as a spread trade is different from using it as a hedge. Effective hedging requires matching the hedge to the specific risk being protected, and the Months Supply of Houses-30Y Mortgage Rate pair is best stress-tested under scenarios the investor most worries about before being sized into a real portfolio.
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Data sourced from FRED, CoinGecko, CBOE, and other providers. This page is for informational purposes only and does not constitute financial advice. Past performance does not guarantee future results.