stocks-earnings-dates 0.1.3

Access 10 years of historical earnings dates for S&P 500 and Nasdaq stocks.

📈 stocks-earnings-dates

A lightweight Python package to query historical earnings release dates for all stocks in the S&P 500 and the top 100 Nasdaq.
It provides access to the last 10 years of earnings dates (or fewer, if the company is more recently listed).

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Installation

Install the package via pip:

pip install stocks-earnings-dates --upgrade

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What’s Inside?

This package uses a built-in SQLite database with over 21,000+ earnings dates collected from public sources, organized by stock ticker.

You can easily:

• Get all historical earnings dates for a given stock.
• List all supported tickers.
• Analyze price movement (%) after each earnings date:
  • Close → Open
  • Close → Close
  • Open → Close

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Usage

🔍 Get earnings dates only:

from stocks_earnings_dates import get_earnings, list_all_tickers

# Get earnings dates for a specific ticker
dates = get_earnings("AAPL")
print(dates)
# Output: ['2024-08-01', '2024-05-02', ..., '2014-07-22']

# List all tickers available in the database
tickers = list_all_tickers()
print(tickers)

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Get price reactions for each earnings date:

from stocks_earnings_dates import get_earnings_price_reactions

reactions = get_earnings_price_reactions("AAPL")
for r in reactions:
    print(
        f"Earnings Date: {r['date']}, "
        f"Close→Open: {r['close_to_open_pct']}%, "
        f"Close→Close: {r['close_to_close_pct']}%, "
        f"Open→Close: {r['open_to_close_pct']}%"
    )

Output example:

Earnings Date: 2024-04-25, Close→Open: +2.45%, Close→Close: +4.38%, Open→Close: +1.88%
Earnings Date: 2024-01-19, Close→Open: -0.89%, Close→Close: -1.25%, Open→Close: -0.36%

These values are automatically calculated using yfinance.

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How It Works

The earnings dates are stored locally in a bundled SQLite database. When using the price reaction function, the package:

• Loads the dates from the local database
• Downloads historical price data using yfinance
• Calculates price changes around each earnings release

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Data Source

The earnings database was compiled from publicly accessible financial websites.
The CSV was cleaned, normalized and converted to a bundled SQLite database.

⚙️ Why SQLite?

This package uses SQLite internally to optimize both speed and memory usage when querying earnings dates.

Instead of loading the entire .csv file into memory every time, only the subset of data requested (such as the earnings dates for a single ticker) is loaded when needed.
This improves the efficiency when accessing multiple tickers.

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Limitations

• This is a static dataset. Updates are not (yet) automated.
• EPS data and surprise values are not included (yet).

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Future Plans

• Add EPS (expected vs actual) and calculate surprise %
• Automatically update the database monthly from trusted sources
• Add option to export earnings + reactions to CSV or DataFrame

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👨‍💻 Author

Made by Albert Pérez
GitHub: AlbertPerez7

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