NAR Existing-Home Sales Report Shows 5.1% Increase in December

Existing-home sales strengthened in December with a 5.1% month-over-month gain to a seasonally adjusted annual rate of 4.35 million and a 1.4% year-over-year increase, marking the strongest December closings in nearly three years. Inventory remains tight at 1.18 million units (down 18.1% from November) with a 3.3-month supply, while the national median existing-home price edged up 0.4% year-over-year to $405,400. Regional activity was mixed (South led gains, Northeast down), and mortgage financing costs eased modestly as the 30-year fixed rate averaged 6.19% in December, supporting the recent pickup in demand but leaving supply constraints intact.

Analysis

Market structure: December’s 4.35m SAAR (+5.1% m/m) with inventory at 3.3 months (down from 4.2) signals a near-term seller’s market and a demand pop into the spring selling season. Lower mortgage rates (30y avg 6.19% vs 6.72% a year ago) compress MBS spreads and favor mortgage originators, title insurers and home-improvement cyclicals while capping upside for high-end luxury sellers in the West where YoY prices are down -1.4%.

Risk assessment: Key tail risk is a >60bp spike in 10y/30y yields (e.g., 30y >6.8–7.0%) from an inflation surprise or Fed repricing, which would rapidly choke purchase activity and torpedo mortgage-backed securities and builder sentiment. Immediate (days) impact will be volatility in MBS and regional-bank mortgage pipelines; short-term (weeks) hinge on Jan pending-sales (Jan 21) and Feb listings; medium-term (quarters) depends on whether inventory re-enters market as NAR expects in Feb–May.

Trade implications: Favor cyclical exposure into spring (homebuilders, HD/LOW, title insurers) and long agency MBS to capture further spread compression; size positions with explicit rate stop-losses. Use pair trades to isolate housing demand (long builders) vs delivery/tech-enabled volumes (short iBuyer/Opendoor) and employ option spreads to cap downside if yields re-price.

Contrarian angles: Consensus treats December strength as gradual; it may be front-loaded seasonal strength — if February brings a supply inflection, builders priced for a continued rally will disappoint. Historical parallels (rate-driven surges 2019–20) differ because rates are structurally higher and inventory elasticities are constrained; mispricing likely in mortgage REITs and iBuyer business models if volumes normalize.

Key Decisions for Investors

• Establish a 2–3% portfolio long basket in homebuilders (equal-weight PHM, DHI, LEN) via Jun 2026 10–15% OTM call spreads (limited premium) with a 3–6 month horizon; trim/exit if 30y >6.8% or national SAAR falls below 4.0m.
• Allocate 3% to agency MBS (e.g., MBB ETF) to capture spread compression from lower mortgage rates; set hard stop to liquidate if 10y yield rises >40bp from current levels or MBB drops 4% intraday.
• Take 1–2% long positions in HD and LOW (1% each) in cash ahead of spring retail demand; add on pullbacks >8% and increase if Jan pending home sales (Jan 21) print positive MoM >+1%.
• Construct a pair trade: long 2% FNF (title insurer) and short 1.5% Opendoor (OPEN) to express higher transaction volumes but margin pressure on iBuyers; unwind if OPEN outperforms FNF by +15% or if Feb listings surge >5% m/m.