Overview
Comprehensive Market Data Coverage
Polygon.io provides extensive coverage across multiple financial markets, with impressive historical depth:
- 32,345+ stock tickers with data from September 2003
- 1,670,030+ options tickers from July 2014
- 11,409+ indices from March 2023
- 1,750+ currency pairs from September 2009
Modern Data Access Methods
The platform offers multiple ways to access financial data:
RESTful API Integration
- Standardized JSON responses
- Comprehensive endpoint documentation
- Client libraries for major programming languages
- Real-time and historical data access
WebSocket Data Streams
- Live market data feeds
- Real-time trade and quote updates
- Efficient data streaming capabilities
- Low-latency connectivity
S3-Compatible Flat Files
- Daily historical market data files
- Support for multiple S3 clients:
- Rclone for data synchronization
- AWS S3 CLI for direct access
- MinIO for cloud storage compatibility
- Python Boto3 SDK integration
SQL Query Interface
- Direct database access
- Custom query capabilities
- Flexible data exploration
- Enterprise-grade performance
Enterprise-Grade Infrastructure
Polygon.io's infrastructure is built for reliability and performance:
- Direct fiber cross-connects to exchanges
- No intermediaries in data delivery
- Co-location with major exchanges
- Institutional-grade reliability
- Fair market access principles
Developer-Focused Features
The platform prioritizes developer experience with:
- Extensive API documentation
- Code examples and tutorials
- Multiple client libraries
- Standardized data formats
- Clear implementation guides
Data Types and Coverage
Comprehensive market data across asset classes:
- Stocks: Trades, quotes, aggregates
- Options: Full options chain data
- Indices: Real-time and historical values
- Currencies: Forex and crypto pairs
This institutional-grade infrastructure makes Polygon.io an ideal choice for financial institutions, developers, and organizations requiring reliable market data access through modern interfaces.
