Stock_Data: List of Stock Symbols with CUSIP ID Numbers

A comprehensive collection of stock symbols paired with their corresponding CUSIP (Committee on Uniform Securities Identification Procedures) identification numbers.

Overview

This repository contains a dataset that maps publicly traded company stock symbols to their unique CUSIP identifiers. CUSIP numbers are 9-character alphanumeric identifiers assigned to North American financial securities for the purposes of facilitating clearing and settlement of trades.

Contents

• CUSIP.csv: Main dataset containing stock symbols and their CUSIP IDs
• EOD/: Archive of previous versions of the dataset

Data Format

The primary dataset is provided in CSV format with the following columns:

Column	Description
CUSIP	The 9-character CUSIP identifier
Symbol	The stock ticker symbol as used on major exchanges
Description	Full registered name of the company / Mutual Fund

Usage

Retrieving CUSIP for a Stock Symbol

import pandas as pd

# Load the dataset
stock_data = pd.read_csv('stock_cusip_mapping.csv')

# Get CUSIP for a specific stock symbol
symbol = 'AAPL'  # Apple Inc.
cusip = stock_data[stock_data['Symbol'] == symbol]['CUSIP'].values[0]
print(f"The CUSIP for {symbol} is {cusip}")

Data Sources

This dataset is compiled from multiple sources including:

• SEC EDGAR database
• Public filings
• Exchange listings
• Financial data providers

Data is periodically validated for accuracy, but users should perform their own verification for critical applications.

Limitations

• This dataset may not include all possible stock symbols
• Some securities might have changed their CUSIP numbers due to corporate actions
• The dataset is updated periodically but may not reflect the most recent changes

Contributing

Contributions to improve or expand this dataset are welcome. Please submit pull requests with:

1. Clear description of the changes
2. Source of the new/updated information
3. Date when the information was obtained

License

This dataset is provided under [choose appropriate license] license. See the LICENSE file for details.

Citation

If you use this dataset in your research or project, please cite it as:

Yoshishima. (2025). Stock_Data: List of Stock Symbols with CUSIP ID number. GitHub Repository. https://github.com/yoshishima/Stock_Data

Website

For additional resources and tools related to this dataset, visit our website: https://thax.io

Contact

For questions, corrections, or additional information, please open an issue on this repository.