The Artmetria Index turns market data into a more readable signal.
The Artmetria Index is a synthetic market index built from auction data. It does not stop at price alone. It combines market movement with Artmetria’s qualitative reading layer so that what circulates on the market becomes easier to read, compare, and interpret over time.
The Artmetria Index structures available signals; it is not a valuation, a price estimate or a prediction. Scores should be read together with confidence, completeness and coverage indicators.
William Turner · Study of a Tree in Bloom · c. 1835 · Art Institute of Chicago
A market reading layer with more discipline
Not a black-box promise machine
A market index first. A qualitative index as well.
In Artmetria’s logic, the Index is not just an average score and not just a market curve either. It begins with auction data — estimates, hammer prices, categories, artists, houses, dates, descriptions — then weights that movement through a more disciplined reading of the lots that compose it.
The market index measures movement. The expert framework helps assess the quality of what is moving. That is why the Artmetria Index is better understood as an interface between market data and qualitative judgment.
Pierre-Auguste Renoir (French, 1841–1919) · Fruits of the Midi · 1881 · Art Institute of Chicago
Auction data as the starting point
The Index is built from real auction activity: known sales, price data, categories, artists, and market rhythm. It begins with movement, not with vague ranking logic.
Rembrandt (Rembrandt van Rijn) · Houses by the Water · ca. 1652 · The Metropolitan Museum of Art
C1–C10 qualifies what is moving
Each lot receives a structured reading through Artmetria’s expert framework. The point is to temper price-only interpretation by introducing a more disciplined view of quality, solidity, and desirability.
Honoré Daumier · The Troubadour · 1868–73 · The Cleveland Museum of Art
Sub-indexes, dashboards, and deeper views
The Index opens into global signals, vertical sub-indexes (teaser on Light, full depth on Pro), and markets by region — with a custom index builder on the roadmap.
The C1–C10 framework remains the qualitative backbone.
The public model below illustrates the expert logic that supports the qualitative reading layer. These criteria do not replace the market. They make the market reading less blind by giving a disciplined way to assess the lots that compose it.
In Artmetria’s logic, the market index and the expert framework are not two separate worlds. The first measures movement. The second helps interpret the quality of what is moving.
That is why the Index is not just “a number”. It is an interface between data and judgment.
Ten criteria used to read a work with more discipline.
The C1–C10 framework is Artmetria’s qualitative layer. It looks at artist identity, period, execution, subject, composition, technique, format, condition, provenance, and critical resonance.
It is not there to compete with the market index, but to enrich it. Price tells you what the market did. C1–C10 helps you ask whether what moved was strong, fragile, balanced, overextended, or structurally interesting.
Below, the model is shown in a public and simplified way. The internal weighting and proprietary calibration remain private.
Ten criteria used to read a work with more discipline.
The public model below illustrates the expert logic that supports the qualitative reading layer. These criteria do not replace the market. They make the market reading less blind by giving a disciplined way to assess the lots that compose it.
In Artmetria’s logic, the market index and the expert framework are not two separate worlds. The first measures movement. The second helps interpret the quality of what is moving.
That is why the Index is not just “a number”. It is an interface between data and judgment.
A balanced C1–C10 reading.
This diagram is intentionally schematic. It does not show a real score for a specific object. It simply helps explain how the ten criteria form one coherent reading system.
Click a criterion on the radar or in the carousel below to focus the reading on one dimension of the framework.
C1 · Artist identity
Historical position, institutional recognition, visibility in collections, specialist literature, and depth of market structure.
One index, several useful readings.
The global Index is meant to open into more readable layers. Not just “where is the market?”, but “what kind of strength or fragility is driving it?” This is where the reading dimensions become useful — distinct from the per-category sub-indexes (Watches, Wine, Cars, Jewellery, Design, Books).
Confidence
- A reading of trust, continuity, and documentary solidity.
- Sensitive to provenance, integrity, and how stable the object feels under review.
- Useful when clarity and confidence matter more than surface excitement alone.
Quality & Integrity
- Focused on execution, condition, technique, and structural strength.
- Captures whether the object holds together materially and visually at a serious level.
- Helps separate superficial desirability from deeper formal and physical coherence.
Reading & Desirability
- Closer to what makes an image compelling, memorable, and resonant.
- Sensitive to subject, composition, bibliographic echo, and visual intensity.
- Useful when comparing not only solidity, but also lasting appeal.
What we know matters. What we don’t know matters too.
A synthetic index, not a decorative score
Educational + analytical, never financial advice
A cross-vertical intelligence layer.
The long-term logic is not limited to paintings. The same structure — market data, normalized ingestion, qualitative scoring, visible coverage, and readable index logic — spans six adjacent collectible categories, opening progressively (coverage depth varies by vertical). Each vertical keeps its own dedicated scoring rubric instead of reusing the Fine Art frame.
Watches
W1-W10 scoring on brand, model, reference, condition, provenance and documentation — a dedicated watches index lane, refreshed on a short cadence.
Wine & Spirits
Dedicated wine scoring covering producer, vintage, provenance and bottle integrity. Calibrated for premium and collectible references — separate from blind speculation.
Cars
Automotive scoring with market movement, condition, documentation and rarity signals. Readable provenance — partial when only registration history is known.
Books & Manuscripts
B1-B10 dedicated doctrine: edition, signature, printer / publisher, binding, completeness, condition, provenance, illustration, significance. Deterministic pass complemented by DeepSeek / OpenAI enrichment for the harder dimensions.
Jewellery
J1-J10 with conditional weights: J4 (gemstone grading) is active only when the piece carries a stone; otherwise its 0.15 weight redistributes to material and design originality. AI enrichment refines GIA / SSEF grading and Burma / Kashmir / Colombia origin priming.
Design
D1-D10 for collectible 20th- and 21st-century design: designer attribution (Prouvé, Eames, Wegner, Castiglioni, Sottsass…), manufacturer (Knoll, Vitra, Cassina, Steph Simon…), era, edition status, iconicity (MoMA / V&A / Centre Pompidou).
Want to see the Index inside the wider platform?
The Index becomes more useful when connected to the rest of Artmetria: Aesthetic Profile, Global Radar, Cockpit / Workspace, the artist layer, and the growing AI tools built on top of the same core.