Fit a market trend. Then use it.
The time-series models from CValR's Sales Plot — linear, polynomial 1–4 and loess with a span control — fitted to your sales and drawn over the scatter. Pick an effective date and every sale gets a time-adjusted price from the fitted curve, ready to export.
Y axis
Trend model
Loess span
0.75
Effective date
Overlays
Sold price over time
Monthly medians & volume
market statsMedian (Y axis measure)
Sales count
Time-adjusted prices
Each sale is adjusted along the fitted trend to the effective date: AdjPrice = PriceSold × trend(effective date) / trend(sale date) — the same ratio method CValR's model chain uses. The adjustment always runs on the sold-price trend, whatever the chart's Y axis shows.