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Yahoo Finance Historical Data

Daily OHLCV price history for 6,000+ tickers going back to 1970.

LQS 89 · gold ⚠ Research-only 80M daily OHLCV rows 12 GB CSV · JSON Released 1997
Browse commercial Financial / Crypto → Visit original source ↗
Source: pypi.org · maintained by Yahoo Finance
80M
daily OHLCV rows
12 GB
Size on disk
89
LQS · gold
1997
First released

About this dataset

Yahoo Finance provides free historical market data (Open, High, Low, Close, Volume) for 6,000+ US and international equities, ETFs, indices, and currencies. Data goes back to 1970 for many tickers. Accessed via yfinance Python library or direct CSV download. Widely used for backtesting, time series research, and quant benchmarking.

Maintainer
Yahoo Finance
License
Yahoo Terms (personal use + attribution)
Formats
CSV · JSON
Source
pypi.org →

LabelSets Quality Score

LQS is our 7-dimension quality score, computed from the dataset's published statistics. See methodology →

89
out of 100
gold tier

High-quality dataset across most dimensions

Composite score computed from the 7 dimensions below: completeness, uniqueness, validation health, size adequacy, format compliance, label density, and class balance.

Completeness 85
No public completeness metric; using prior for 'automated' datasets.
Uniqueness 93
Exact-hash deduplication documented by maintainer.
Validation 93
Ground-truth is the official record itself (filings, medical charts, etc.).
Size adequacy 100
80,000,000 items — exceeds 10,000 adequacy target for Financial / Crypto.
Format compliance 95
Industry-standard format — drop-in compatible with mainstream tooling.
Label density 0
Unlabeled corpus — label density not applicable.
Class balance 58
Long-tail distribution — dominant classes overrepresented.

What it's used for

Common tasks and benchmarks where Yahoo Finance Historical Data is the default or competitive choice.

Sample statistics

What's actually in the dataset — from the maintainer's published stats.

6,000+ tickers, daily bars since 1970 for many. Approx 80M total daily OHLCV rows. Intraday data also available on recent history.

License

Yahoo Finance Historical Data is distributed under Yahoo Terms (personal use + attribution). This is a third-party public dataset; LabelSets indexes and scores it but does not host or redistribute the data. Always verify current license terms with the maintainer before commercial use.

Heads up: this dataset's license restricts commercial use. If you need financial / crypto data for production, check LabelSets' paid datasets below — every listing has an explicit commercial license.

Need commercial-licensed Financial / Crypto data?

LabelSets sellers offer paid financial / crypto datasets with what public datasets often can't give you:

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Frequently Asked Questions

Yahoo Finance Historical Data is distributed under Yahoo Terms (personal use + attribution), which restricts commercial use. For a commercially-licensed alternative in financial / crypto, see LabelSets' paid datasets.
Yahoo Finance Historical Data contains 80,000,000 daily OHLCV rows. 6,000+ tickers, daily bars since 1970 for many. Approx 80M total daily OHLCV rows. Intraday data also available on recent history.
Yahoo Finance Historical Data is maintained by Yahoo Finance and is available at https://pypi.org/project/yfinance/. LabelSets indexes and scores this dataset for discoverability but does not redistribute it.
LQS is a 7-dimension quality score (completeness, uniqueness, validation, size adequacy, format compliance, label density, class balance) computed from the dataset's published statistics. Composite scores map to tiers: platinum (≥90), gold (≥75), silver (≥60), bronze (<60). Read the full methodology.