# Market-Data Redistribution Note

## Scope

This note covers the 11 preserved adjusted-price snapshots in `data/raw/`.

## Sources checked on 2026-07-27

Using the agent-reach web-reading path:

1. `yfinance` documentation:
   `https://ranaroussi.github.io/yfinance/`
2. Yahoo Developer API Terms of Use:
   `https://policies.yahoo.com/us/en/yahoo/terms/product-atos/apiforydn/index.htm`
3. Yahoo Terms of Service:
   `https://legal.yahoo.com/us/en/yahoo/terms/otos/index.html`

## Relevant statements

- The `yfinance` documentation states that Yahoo Finance data are "intended for
  personal use only" and instructs users to consult Yahoo's terms for their
  rights to the downloaded data.
- Yahoo's general Terms of Service prohibit reproducing, modifying, renting,
  leasing, selling, trading, distributing, transmitting, broadcasting, or
  otherwise exploiting service content without explicit written permission.
- Yahoo's Terms of Service also prohibit using service data to create a
  competing database, archive, feed, widget, or other aggregated data source
  without express prior permission.

## Practical conclusion for this package

Public redistribution rights for the preserved Yahoo Finance snapshots are **not
confirmed** by the checked terms. The current safest position is:

- acceptable for confidential editorial-review submission,
- **not cleared for unrestricted public repository deposit**, unless written
  permission or a separately licensed redistributable source is obtained.

## Recommended public-release posture

If a public repository version is needed before permissions are clarified:

1. Exclude `data/raw/`.
2. Retain `data/asset_inventory.csv`, `results/study2/study2_manifest.json`,
   `manifests/SHA256SUMS.txt`, and the protocol/results/code files.
3. State that the preserved raw snapshots can be supplied to editors/reviewers
   confidentially and that public users should reconstruct them from the
   original provider subject to the provider's own terms.
