Blog / Methodology
What "Source Coverage" Actually Means on Clinical Asset Index
May 28, 2026· Data as of 2026-05-28
What "Source Coverage" Actually Means on Clinical Asset Index
Not all price estimates are equal. A median computed from 50 complete-system listings across 3 sources is a reliable signal. A median computed from 3 listings on a single source is noise. We label both honestly.
Coverage grades
- STRONG — 50+ listings, 3+ sources contributing.
- GOOD — 20+ listings, 2+ sources.
- THIN — 5+ listings.
- VERY THIN — fewer than 5 listings (treated as directional only).
- NO DATA — nothing observed yet (an expansion target).
Why multiple sources matter
A device that appears only on eBay may have a very different price distribution from one that also appears on GovDeals and DOTmed. Cross-source coverage reduces selection bias. The Per-Source Benchmarking table on each device page lets you see exactly which sources contributed.
How to read a Thin label
If the public median has fewer than 5 comps, it's labeled Thin group. Treat it as directional — verify the price independently. Use Verify a Listing to compare a specific URL or screenshot against current peer comps.
Clinical Asset Index is observed market intelligence — not an appraisal, not medical advice, independent of and not endorsed by any marketplace or manufacturer. Verify condition and regulatory status independently before purchase. Methodology →