cyberneticlibrary
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Download Yahoo Finance market data

yfinanceskillsetup L2★309
mkurman/zorai ↗
What it does

Download Yahoo Finance market data into pandas DataFrames

Best for

Rapid prototyping of quant research and backtesting without API keys or rate limits

Inputs
  • · Ticker symbol (e.g., MSFT, AAPL)
  • · optional: start/end dates, data types (prices, options, fundamentals)
Outputs
  • · Pandas DataFrame with OHLCV data
  • · Options chain (calls/puts)
  • · Balance sheet and financials
  • · Dividend/split history
  • · Institutional holders
Requires
  • · Yahoo Finance web data
  • · pandas
Preconditions

Python 3.x; yfinance installed (uv pip install yfinance); ticker symbol valid

Failure modes

Invalid ticker symbol; network timeout; Yahoo Finance rate limiting; delisted symbols

Trust signals
  • · Fastest path from ticker to DataFrame
  • · Covers options, fundamentals, financials in one library
  • · Published GitHub/PyPI project