Gavelia·
← Writing/Research · No. 01
24 March 2026 · 9 min

The data
flywheel.

1,738 comparables is a number, not a moat. The moat is what you do with the 1,739th.

When we tell people we have 1,738 verified European auction and gallery comparables in our dataset, the reaction is usually one of two things. Sophisticated observers say 'that's not many.' Optimists say 'that's already enough.' Both are missing the point.

The advantage is not the static size of the dataset. It is what happens when the next sale lands. Every valuation we give today becomes a forecast we will check tomorrow. Every realised hammer price either tightens or loosens our confidence on a specific segment — and that segment-level accuracy is published.

Most of our competitors optimise for listing volume. We optimise for prediction error.

The quiet second advantage is geography. A US-headquartered platform can scrape Sotheby's, Christie's, and Phillips in their sleep. They cannot walk into a Ghent gallery on a Thursday and read the ledger. We can. That gap is the part of the moat that does not show up on anyone's dashboard.

Gavelia Editorial · Amsterdam