Bidding Tool

Win the right lots — with a max bid you can actually defend.

Paste an auction listing. Our algorithm pulls comparable hammer prices from the shared FMV pool and gives you an Auction FMV, a recommended max bid, and a live win-probability curve.

Free to use. Anonymized comps. No appraisal subscription required.

How it works

Three steps from listing to bid.

Paste the auction URL

We auto-extract year, make, model, hours, and photos from the listing.

See the math

Auction FMV from a weighted trimmed mean of comparable hammer prices, plus a win-probability curve.

Bid, then learn

Outcomes auto-update. The pool sharpens with every closed lot — yours included, fully anonymized.

See it in action

From auction listing to a bid you can defend.

A live tour of the Bidding Tool — comps in, max bid out, with win-probability backed by real hammer data.

app.fairmarketvaluations.app/bid
Bidding workspace — watching, placed, won, lost
01 / 04·Bidding workspace — watching, placed, won, lost

Hover to pause. Auto-advances through 4 steps.