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Brand Share-of-Voice: Our Methodology, Explained

How Comp Chirp attributes share-of-voice across listings, dealer networks, and auction lots per equipment class.

Dr. Hana KimApr 4, 202610 min read
BRANDSHARE

Brand share-of-voice sounds like a marketing metric. In equipment valuation, it's a supply signal — and here's how we compute it.

What we measure

  • Active listings by brand, per equipment class, per region.
  • Auction lot counts by brand, weighted by sale channel.
  • Dealer network breadth: how many distinct rooftops carry each brand.

How we normalize

Raw counts favor whoever has the noisiest dealer network. We normalize against a rolling 12-month baseline per class, so a share-of-voice move is a move relative to the brand's own history — not just a reflection of overall market volume.

24
Classes tracked
3
Data refreshes / day
12 mo
Rolling baseline
"Share-of-voice tells you what the market is offering. Values tell you what it's clearing. You need both."

Why appraisers care

When share-of-voice for a brand rises sharply in a class, comp density for that brand improves — but so does downward price pressure on aging inventory. Both signals feed the reconciliation.

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