DOM Monitor
Days on Market as market health signal — rising DOM precedes margin compression and inventory writedowns
Purpose
Days on Market is the single best leading indicator of the automotive market's health. Rising DOM precedes price concessions, which precede margin compression, which precedes earnings misses — by 6–10 weeks. It is the earliest signal available from transaction data.
DOM Monitor tracks average days on market by brand, segment, and dealer group — comparing to prior periods with BULLISH (accelerating sell-through) / BEARISH (slowing, inventory building) signals. Maps to relevant tickers with earnings implications.
How It Works
Execution flow. MCP tool calls are shown inline on each step.
↔ Parallel Execution
get_sold_summaryCalls get_sold_summary ranked by make with ranking_measure=average_days_on_market for current period.
get_sold_summarySame call for prior period. Computes DOM change per brand and aggregates to ticker.
BULLISH: DOM fell >2 days. CAUTION: DOM rose 2–5 days. BEARISH: DOM rose >5 days. Maps to ticker with earnings implication framing.
MCP Tool Calls
| Tool | Calls | Purpose |
|---|---|---|
get_sold_summary | 2 | DOM by brand for current and prior period |
Example Output
DOM MONITOR — National | February 2026 ═══════════════════════════════════════ Ticker Brand DOM Now DOM Prior DOM Δ Signal ────── ──────────── ─────── ───────── ────── ───────── TM Toyota 22 days 24 days -2 d BULLISH HYMTF Hyundai/Kia 19 days 21 days -2 d BULLISH F Ford 31 days 27 days +4 d CAUTION STLA Jeep/Ram 35 days 28 days +7 d BEARISH GM Chevrolet 26 days 25 days +1 d NEUTRAL SIGNAL: STLA DOM +7 days — inventory build underway. Watch for Q1 incentive spend.
Cost Estimate
100 checks/month ≈ $1–4
Limitations
- US market only.
- DOM reflects time from listing to sold date — does not capture days on lot before listing.
- Seasonal DOM variation is normal (Q4 tends higher) — always compare to same period prior year for clean signal.