Price history you can trust.
Monthly medians of recorded sales, PSA 10 down to raw, with individual sale dots and indicators for thin markets. Missing months have no observed median. Dotted connections are display aids; a current month with sales has a hollow, still-revising endpoint.
Illustrative preview — sample data, including planned features.
Sales and monthly medians
Compare six tiers on the Card page. Faint dots show individual sales; the line connects monthly medians. Hover by month for the median and sale count. Dotted segments distinguish missing months and carried values.
Indicators for thin markets
Card-page signals adapt their periods to each card’s sales activity. Firing signals appear first, with volume and volume trend shown separately. Tooltips explain each reading’s period and data requirements.
Inspect the underlying sales
The sales ledger lists dates, prices, sources and listing titles, with tier filters. History varies by card and tier; late records can revise monthly medians. The dedicated Charts workspace and overlays are still planned.