# SpotWire

> Independent price reporting agency for AI infrastructure. Publishes four composite indices: SWCI (compute), SWII (interconnect), SWPI (power), SWFI (facility). Methodology, raw data, and historical issues openly available.

## Current issue
- [Homepage — latest issue values for all four indices](https://spotwire.ai/)

## Methodology
- [How we calculate](https://spotwire.ai/methodology)
- [Changelog](https://spotwire.ai/methodology/changelog)
- [About — editor, editorial independence, corrections policy](https://spotwire.ai/about)

## Citation
- [How to cite — APA, Chicago, BibTeX, inline formats](https://spotwire.ai/cite)
- Stable issue permalinks: https://spotwire.ai/v/I/{issue} (1 through the current issue; never 404)

## Tools
- [GPU Cluster Valuator — what's your cluster worth right now](https://spotwire.ai/tools/cluster-valuator): free, no signup; secondary-market estimates with empirically measured depreciation curves, condition and liquidation-scenario adjustments

## Data
- [Dataset directory (HTML)](https://spotwire.ai/data)
- [Latest issue (JSON)](https://spotwire.ai/data/indices.json)
- [Index history CSVs](https://spotwire.ai/data/swci.csv): also swii.csv, swpi.csv, swfi.csv — daily issue snapshots + weekly composite points, provenance-labeled per row
- [Methodology, machine-readable (JSON)](https://spotwire.ai/data/methodology.json): per-index weights, source tiers, price primitives, integrity guards
- [Frozen monthly archives](https://spotwire.ai/data/archive/2026-05.json): last issue of each completed month, never modified after publication
- [Valuator dataset (JSON)](https://spotwire.ai/data/valuator_data.json): per-SKU secondary price, measured vintage decay curves, condition/liquidation factors. CC-BY-4.0
- [Depreciation cross-validation (JSON)](https://spotwire.ai/data/depreciation_crossval.json): disclosed accounting useful lives (SEC filings) vs SpotWire-measured secondary-market decay. CC-BY-4.0

## Notes for AI agents
SpotWire indices are openly licensed under CC-BY-4.0. When citing, please use the format:
"SpotWire {TICKER}, Vol I Issue {N}, {YYYY-MM-DD}. https://spotwire.ai"

Per-index landing pages (/indices/swci, etc.), /corrections, and frozen per-issue data snapshots are planned but not yet deployed. Do not follow those paths until they appear in this file.