How Price History Is Built
- 1
Check source context
Boatpedia records source name, listing status, price, currency, location, and observed date when that information can be shown.
- 2
Track changes over time
A price history should show meaningful listing changes over time instead of treating the latest asking price as the whole story.
- 3
Attach to the right model
Builder name, model name, year, length, title, and source context help identify whether a listing belongs with a model.
- 4
Label the summary
Public summaries should show active listing count, median ask, source count, stale or limited-data states, and the observation window.
Market Chart Shape
- Listing observation
- A source-backed listing note with status, price, location, and observed date.
- Model match
- The connection between a listing and the boat model it appears to represent.
- Public series
- A trend point with time window, sample size, source count, and caveats.
Chart Publication Checks
Data quality
- Confirmed or high-confidence model matches.
- Outlier, duplicate, project-boat, and stale-listing policies applied.
- Minimum sample-size threshold met or chart is labeled limited.
User-facing labels
- Asking-price basis is visible.
- Currency and tax/VAT state are visible.
- Source count, observation window, and latest generated timestamp are visible.
References
Sources and Method Notes
Boatpedia reference
Open sourceBoatpedia market-tracking standard
Public guidance for reading asking-price history, listing freshness, and market caveats.
Boatpedia reference
Open sourceBoatpedia reference standards
Public guidance for reading model facts, source notes, market context, and data caveats on Boatpedia.
Next reference
Related Boatpedia Pages
Market GuidesAsking Price vs Sold Pricefoundation / 7 minBoat listings usually expose asking prices. A sold-marked or removed listing is not automatically a confirmed transaction price.Boat DataHow to Read a Boatpedia Model Pagefoundation / 7 minA Boatpedia model page separates identity, specifications, source evidence, market observations, visual assets, and inspection notes.