This One Number Predicted Every Rancho Palos Verdes Townhome Price Move for 18 Years — Here's What It Says Now
Rancho Palos Verdes Townhomes: Does Absorption Predict Price?
The Headline Finding
Across 18 years of Rancho Palos Verdes townhome data, the Absorption Coefficient (AC) — months of supply on the market — is a statistically reliable leading indicator of price per square foot roughly 9 to 12 months later. The relationship is inverse: when inventory tightens (low AC), prices tend to rise over the following year; when inventory builds (high AC), prices tend to soften. The signal is significant at p < 0.0001.
Critically, AC is not a reliable read on what price is doing today — the same-month relationship flips around over time. Its value is as an early-warning gauge of where prices are headed, which is exactly what buyers and sellers need for timing.
Chart 1 — The Two Series Over 18 Years
Price per square foot (gold, right axis) versus the Absorption Coefficient (navy, left axis, inverted so that "up" means a tightening market). When the navy line climbs (inventory tightening), the gold line tends to follow upward several quarters later. Note how the navy spikes downward in 2008 and 2011 preceded the price weakness, and how persistent tightening from 2012 onward led the long price climb.
Chart 2 — How Far Ahead Does Absorption "See"?
Each bar shows the correlation between today's Absorption Coefficient and the change in price per square foot a given number of months into the future. The bars are all negative (confirming the inverse relationship) and reach their strongest point at the 9-month mark, staying powerful through 12 months. This is the predictive window.
Chart 3 — The Convergence Test
Each dot is one month: its horizontal position is the Absorption Coefficient at that time, its vertical position is the actual price-per-square-foot change over the following 12 months. The downward-sloping trend line is the predictive signal — low absorption (left) clusters with future price gains; high absorption (right) clusters with future declines.
Chart 4 — Regimes: What Each Market Tells You
Sorting all 18 years into three market regimes by absorption level shows a clean, monotonic gradient in what happened to prices 12 months later. This is the single most actionable view in the report.
| Market Regime | Absorption Coefficient | Avg. Price Change 12 mo Later | Odds Prices Rose |
|---|---|---|---|
| Tight / Seller’s | Below 2.0 months | +6.7% | 75% |
| Balanced | 2.0 – 4.0 months | +2.5% | 54% |
| Soft / Buyer’s | Above 4.0 months | −1.2% | 29% |
As of May 2026, the Absorption Coefficient sits near 2.7–3.0 months — the firmer end of "balanced," and tightening from 3.6 in December. Price per square foot has climbed from $588 to roughly $639 over the same stretch. With absorption in this range and trending lower, the model points to continued modest price firmness over the next 12 months (on the order of low-single-digit gains), not a reversal. The signal would turn cautionary only if absorption pushes back above 4.0.
For Sellers
1. Read absorption, not headlines. When months-of-supply is below 2.0, history says you have roughly a year of pricing tailwind ahead — price confidently and don’t leave money on the table.
2. Watch for the turn. A sustained rise in absorption above 4.0 is the clearest early warning that price softness is coming 9–12 months out. If you see it, list sooner rather than waiting.
3. Today’s setup favors you. With absorption tightening into the high-2s, the wind is at your back for the coming year. This is a constructive window to sell.
4. Don’t over-rely on the very latest month. Absorption predicts the future, not the present — a single soft month is noise, a multi-month trend is signal.
For Buyers
1. Your best entry follows a soft market. Periods with absorption above 4.0 were typically followed by flat-to-lower prices — buying into that window historically meant buying near the bottom.
2. Tight markets are not the time to lowball. Below 2.0 months of supply, prices rose 75% of the time over the next year — competing offers and waiting both get more expensive.
3. Right now leans seller-favorable. With absorption in the high-2s and falling, waiting for a discount is a low-probability bet over the next 12 months. Buy the home that fits, not the dip.
4. Use absorption as your timing dashboard. Track it monthly — a climb back above 4.0 would be your cue that better pricing may be 9–12 months away.
An Honest Word on Reliability
This is a directional, probabilistic signal, not a guarantee. Absorption explains a meaningful share — but not all — of future price movement; mortgage rates, the broader economy, and the thin, high-value nature of the RPV townhome market all matter too. The relationship is most trustworthy at the regime level (tight vs. balanced vs. soft) and over 9–12-month horizons, and least trustworthy as a month-to-month price predictor. Treat it as one well-tested instrument on the dashboard, read alongside rate trends and local conditions.
☎ (424) 722-9136 • ✉ george.fotion@homeispalosverdes.com
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