Unrivaled stock data, zero red tape

Polygon.io offers instant, scalable access to comprehensive U.S. stock data for business use cases. Our developer-centric APIs are designed to power both simple and complex financial applications seamlessly.

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Stocks data

Intuitive and easy to use

Data for virtually any use case

Build internal tools, power analytics platforms, backtest investment strategies, and evaluate performance with institutional-grade market data.
Build software
Seamlessly integrate real-time and historical data to create custom financial applications for trading, portfolio management, and risk assessment.
Train AI
Access a wealth of financial data to train machine learning models for predictive analytics, algorithmic trading, and market sentiment analysis.
Analyze Signals
Use high-fidelity market data to measure returns, attribute results, and continuously improve your investment strategy.

Everything you need to power your app

We seamlessly blend multiple exchange feeds to generate an exceptionally accurate Fair Market Value for tradable securities using our proprietary algorithm.
Complete market history.
Access full historical market data, reflecting 100% of total market volume across all exchanges after each trading day.
Extensive reference data.
Sourced from the most accurate and reliable sources, fully standardized and accessible through our easy-to-use reference data API endpoints.
Fair market value
Company tickers
0+
Historical data
0+ Years
Market coverage
0%

Data for all US exchange-listed stocks

32,345+ US equities tickers

TickerCoverage startCoverage endListing exchange
AAPL
AAPLApple Inc.
September 1st, 2003PresentXNAS
NVDA
NVDANvidia Corp
September 1st, 2003PresentXNAS
AMZN
AMZNAmazon.com Inc
September 1st, 2003PresentXNAS
MSFT
MSFTMicrosoft Corp
September 1st, 2003PresentXNAS
TSLA
TSLATesla, Inc. Common Stock
June 29th, 2010PresentXNAS
NFLX
NFLXNetflix Inc
September 1st, 2003PresentXNAS

Mission critical market data

Rigorous data quality

Our multi-layered approach to data redundancy and backup ensures uninterrupted access to stock feeds, safeguarding your applications and tools against potential data loss.
Redundant networks.
We operate two fully isolated networks to ingest and process data feeds, ensuring uninterrupted service even in the event of hardware failures.
HA streaming.
Data flows through our systems using a highly available messaging system, ensuring uptime and speed.
Polygon datastore.
Historical data is stored in our nanosecond precision proprietary database - resulting in blazing fast API response times.
Abstract chart illustration

Intuitive and easy-to-use

Powerful data, simple access

Choose the data access method that suits your needs and get started today.

Flat Files

Our S3 interface lets you access our flat files easily and seamlessly. With just a few clicks, you'll have the data you need to power your applications.

Explore datasets

API

Our Restful and WebSocket APIs provide flexible and powerful options for accessing our data. Whether you need real-time or historical data, we've got you covered.

View docs

SQL

Our SQL Query option lets you harness the power of SQL to access our data. With this flexible and intuitive option, you can easily customize queries to fit your needs.

Request access

Built for engineers

All plans include unlimited API calls and up to three concurrent WebSocket connections plus one for each data expansion.

View our API docs →

Developer-friendly access

The industry-leading entry point for businesses, no extra licensing required

We've designed our Business plan to provide the best possible entry point for stock data with no exchange reporting requirements. If you find that your use case requires granular trade and quote data from exchanges, you can seamlessly add exchange feeds with one of our expansion packages.
  • Fair market value
    Fair market value

    We've developed an algorithm that generates an accurate indication of a securities' value in real-time. Perfect for charting.

  • Over 20 years of history
    Over 20 years of history

    Our extensive archive of stock market data goes back over two decades, because we understand that historical context is crucial.

  • Reference data
    Reference data

    We provide comprehensive, accurate company reference data, essential for smart investment choices.

  • Complete market volume
    Complete market volume

    See market trends as they happen with complete volume from every exchange across the US market, in real-time.

  • Full tick history
    Complete tick history

    Access every trade and NBBO Quote at nanosecond granularity after end-of-day. Intraday ticks are available with exchange expansions.

  • Extended hours coverage
    Extended hours coverage

    Receive fair market value updates as frequently as once per second from 4AM-8PM ET, enabling your application to serve a global user base.

  • No extra fees
    No extra fees

    Build on our platform with confidence, knowing that we are committed to transparent pricing with no hidden costs.

  • SLA
    SLA

    With SLAs available in our enterprise plans, enjoy peace of mind with the guarantee of consistent, reliable service.

  • Dedicated Slack channels
    Dedicated Slack channels

    Personalized support via convenient, developer-friendly channels is available for enterprise users.

Simple pricing

Pricing plans for teams of all sizes

Plans designed to fuel your company's growth and give you a competitive edge in the financial industry.
Payment frequency
MonthlyAnnually
Stocks Business
Perfect for getting up and running instantly.
$1,999/month
Sign up
  • US Coverage
  • Unlimited API Calls
  • 20+ Years Historical Data
  • No Exchange Fees or Approvals
  • Unlimited File Downloads
  • Real-time Fair Market Value
  • Reference Data
  • Fundamentals Data
  • Corporate Actions
  • Technical Indicators
  • Minute Aggregates
  • Real-time Streaming
  • Snapshot
  • Trades
  • Quotes
Business useBusiness use
Enterprise
Market data that evolves with your business.
Custom
Contact us
  • Everything in Business
  • Exchange Feeds Tailored for Your Use Case
  • Upgrades for Additional Ticks
  • SLAs
  • Dedicated Slack Channel
  • Implementation Support
  • Access to our Customer Success Team

Enhanced accuracy with data feed expansions

Add expansions to get even more data

Easily layer on additional tick level trade and quote data directly from top US exchanges. Additional exchange fees apply to these products. Our experts will help you understand their fees and guide you through exchange approval.
Cboe EDGX

Cboe EDGX

Add real-time trades and BBO quotes from Cboe EDGX TOP exchange.

$1,999 /month
NASDAQ

Nasdaq Basic

Add real-time trades and BBO quotes from Nasdaq's 4 exchanges.

$1,999 /month
Full market expansion

Full Market Delayed

15-minute delayed trades and quotes from every US exchange.

$499 /month
Full market expansion

Full Market

Real-time trades and BBO quotes from every US exchange.

$1,999 /month
IEX market expansion

IEX Exchange

Add real-time trades and BBO quotes from the IEX exchange.

$499 /month
Talk to sales →

Startup pricing

Startup? We got you.

We offer startups up to a 50% discount on the first year so they can build their business on the best foundation. Contact sales@polygon.io to see if you qualify.

Frequently asked questions

Can't find the answer you're looking for? Check out our knowledge base or contact our team.

Business-friendly access

Explore more data

We're committed to providing fair access to the financial markets, and we offer the same institutional-level data to businesses of all sizes.
Options

All US Exchanges + Darkpools

Tickers
1,670,030+
Coverage Start
July 18, 2014
Rows
722 Billion+
Features
Docs
Indices

S&P, Dow Jones, FTSE, and more

Tickers
11,409+
Coverage Start
March 9, 2023
Rows
20 Million+
Features
Docs
Currencies

Forex and Crypto Currencies

Tickers
1,750+
Coverage Start
September 24, 2009
Rows
2 Billion+
Features
Docs