jfinance
Copyright 2026 jfinance contributors

Licensed under the Apache License, Version 2.0. See LICENSE.

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1. Software included in this distribution
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yfinance
  Copyright 2017-2019 Ran Aroussi
  Licensed under the Apache License, Version 2.0.
  https://github.com/ranaroussi/yfinance

The following files are copies of yfinance 1.5.2 source files, generated by
tools/vendor_yfinance.py. Each file states at its top which yfinance file it was
copied from and what was changed (features that EDINET has no data for were
removed; requests are sent to the jfinance server instead of Yahoo; Yahoo's
cookie/crumb/consent handling was removed):

  src/jfinance/_http.py, base.py, config.py, const.py, data.py, exceptions.py,
  lookup.py, search.py, shared.py, ticker.py, tickers.py, utils.py,
  scrapers/__init__.py, scrapers/fundamentals.py, scrapers/funds.py,
  scrapers/holders.py, scrapers/quote.py

src/jfinance/__init__.py is based on yfinance's __init__.py.
The API reference used by the compatibility tests (tests/yf_api_reference.json)
and the list of financial statement items in docs/reference/financial_keys.md
were generated from yfinance.

jfinance-specific features are in src/jfinance/jp/.

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2. Data: EDINET (Financial Services Agency, Japan)
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The data served by query1.jfnc.org is derived from EDINET and is NOT covered by
the Apache License above. It is governed by EDINET's own terms.

出典：EDINET閲覧（提出）サイト（https://disclosure2.edinet-fsa.go.jp/）、
      PDL1.0（https://www.digital.go.jp/resources/open_data/public_data_license_v1.0）

EDINET閲覧（提出）サイト（https://disclosure2.edinet-fsa.go.jp/）をもとに jfinance 作成

  EDINET content is used under the Public Data License 1.0. jfinance selects
  values, applies amendment filings and reshapes the data into Yahoo Finance's
  response format; the data served is therefore edited and processed by
  jfinance, and must not be presented as the government's unprocessed data.
  The same attribution is required when you redistribute or republish it.

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3. EDINET Taxonomy (element labels, statement names, segment names)
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EDINET タクソノミは EDINET の利用規約（PDL1.0）の適用対象外で、
「EDINETタクソノミの知的所有権について」が適用されます。
科目名・財務諸表の名称・セグメント名などのラベルはこのタクソノミから採っており、
改変・修正・翻訳は行っていません。

EDINETタクソノミ © Copyright 2014 Financial Services Agency, The Japanese Government

  EDINET Taxonomy is excluded from EDINET's PDL1.0 terms; the "EDINET Taxonomy
  Legal Statement" applies instead. Element labels, statement names and segment
  names are quoted from the taxonomy without alteration, modification or
  translation. The Statement is reproduced in full alongside this notice as
  licenses/EDINET_Taxonomy_Legal_Statement.txt, and is also published at
  https://www.fsa.go.jp/search/EDINET_Taxonomy_Legal_Statement.html

  Copyright in some of the content available in EDINET Taxonomy belongs to
  XBRL International, Inc. ("XII"), and the Statement grants use only in
  accordance with XII's Intellectual Property Policy (www.xbrl.org/legal).

  EDINET Taxonomy is provided "AS IS". JFSA and XII disclaim all warranties and
  are not liable to any user or third party. See the Statement for the full
  warranty disclaimer and limitation of liability.

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4. Software used to produce the data (not distributed here)
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The data served by query1.jfnc.org is produced by a pipeline that is not part of
this package. It uses:

arelle (arelle-release)
  Licensed under the Apache License, Version 2.0.
  https://arelle.org/ — reads XBRL instances, resolving contexts, dimensions,
  presentation and calculation links.

XBRL 2.1 and related specifications
  XBRL International, Inc. https://www.xbrl.org/
  The specification schemas are distributed with arelle, not with jfinance.

These are acknowledged as the basis of the data. Neither is included in this
package, and neither imposes obligations on users of jfinance.
