Polygon.io
Polygon.io (operating as Massive) is a market data API platform delivering institutional-grade stocks, options, futures, indices, and currencies data to developers, fintech builders, and enterprises via REST, WebSocket, SQL, and S3 from exchange-colocated infrastructure.
- Company typePrivate
- Founded2016
- HeadquartersAtlanta, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Polygon.io does
Polygon.io, operating as Massive and legally domiciled as Massive.com, Inc. in Delaware, provides institutional-grade financial market data through a unified API infrastructure. The platform offers real-time and historical data across five core asset classes — stocks (32,345+ tickers, coverage since 2003), options (1.67M+ contracts since 2014), indices (11,409+ since 2023), currencies (1,750+ pairs since 2009), and futures (361K+ contracts since 2017) — delivered via REST APIs, WebSocket streams, SQL query access, and S3 flat files in JSON and CSV formats. Underlying infrastructure is co-located inside exchange datacenters with direct fiber cross-connects to NYSE, Nasdaq, Cboe, and CME Group, producing sub-20ms real-time latency; the company emphasizes owned infrastructure to control quality end-to-end without middlemen. Client libraries in Python, JavaScript, Go, and Java plus extensive documentation target developer self-service adoption.
The business model is a single unlimited-access monthly subscription covering all asset classes with simple, transparent pricing and no published tiers. Go-to-market is purely digital and PLG: API key signup at the self-serve dashboard, with no evidence of a traditional sales team or channel partners. Customers span fintech startups, trading applications, robo-advisors, retail-investing platforms (Revolut, The Motley Fool, public.com, Gotrade), and academic institutions (Stanford), with named enterprise logos suggesting a mix of large-contract accounts and a long tail of developer/SMB subscribers.
Distribution runs exclusively through self-serve digital channels — developer portal, blog, case studies, GitHub, and social platforms (X, YouTube, Instagram, Facebook) — supplemented by an email newsletter. Recent product velocity has been high, with generally available Futures APIs launched in May 2026 and an LULD WebSocket channel in June 2026, alongside an MCP Server release that exposes the data layer to AI-agent workflows. The company appears privately held with no disclosed funding rounds, parent entity, or revenue figures in the source material, and provides no public pricing details beyond the unlimited-access framing.
Polygon.io firmographics
Firmographics- Name
- Polygon.io
- Legal name
- Massive.com, Inc.
- Website
- https://polygon.io
- Company type
- Private
- Founded year
- 2016
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Polygon.io (operating as Massive) is a market data API platform delivering institutional-grade stocks, options, futures, indices, and currencies data to developers, fintech builders, and enterprises via REST, WebSocket, SQL, and S3 from exchange-colocated infrastructure.
- Ownership category
- akta.pro rank
Polygon.io industry classification
Industry- Product category
- Financial Market Data API
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)
- SIC
- Services-Computer Processing & Data Preparation (7374), Services-Computer Programming, Data Processing, Etc. (7370)
- akta.pro primary industry
- Data & Analytics Platforms (Data Warehousing, Lakes, Streaming) (HDABAAAF)
- akta.pro secondary industry
- Real Assets — Digital Infrastructure (Data Centers, Fiber, Towers) (FSAHAIAF)
Keywords
Where Polygon.io is headquartered
LocationHeadquarters
- HQ city
- Atlanta
- HQ country
- United States
- HQ region
- North America
Markets served
Polygon.io business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Infrastructure, Personnel, Operations, Marketing or Sales
Revenue model
- API Subscription Access: Simple, transparent monthly pricing providing unlimited access across all available asset classes including stocks, options, indices, currencies, and futures.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | Unlimited access subscription |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels6 records
Polygon.io product offering
Product offeringCore offering
Polygon.io (doing business as Massive) provides institutional-grade financial market data through APIs to developers and fintech companies. The platform delivers real-time and historical data across stocks, options, indices, currencies, and futures via REST APIs, WebSockets, SQL queries, and S3 flat files. Its infrastructure is co-located in exchange datacenters with direct fiber cross-connects to NYSE, Nasdaq, and CBOE, enabling real-time data delivery at sub-20ms latency.
Product overview
Massive is a market data platform offering institutional-grade financial data through a unified API infrastructure. The platform provides multiple data delivery methods including REST API, WebSocket streams, SQL Query access, and S3 flat files. The core product portfolio consists of five primary data categories: Stocks (32,345+ tickers, 350B+ data points), Options (1.67M+ contracts, 722B+ data points), Indices (11,409+ indices, 20M+ data points), Currencies (1,750+ pairs, 2B+ data points), and Futures (361K+ contracts, 260M+ data points). All data is co-located in exchange datacenters with direct fiber cross-connects to major exchanges (NYSE, Nasdaq, Cboe) for sub-20ms latency.
Differentiator
Problem solved
Functional benefit
Products and services
- Market Data API RESTful and WebSocket APIs providing flexible data access methods for real-time and historical market data across all asset classes including stocks, options, indices, currencies, and futures. Sold on a monthly subscription with unlimited usage.
- Stocks Data Real-time and historical stock market data from all US exchanges, dark pools, and OTC markets with over 32,345+ tickers and 350B+ data points, available since 2003. Designed for trading apps, analytics platforms, and retail/institutional data integrations.
- Options Data Complete options chain data including Greeks, implied volatility, and trade-level detail covering 1.67M+ contracts with 722B+ data points since 2014. Used by options analytics platforms and retail options trading applications.
- Indices Data Global market indices coverage including S&P, Dow Jones, FTSE, and more with 11,409+ indices and 20M+ data points since 2023. Targets applications needing benchmark and index reference data.
- Currencies Data Forex pairs and cryptocurrency markets with tick-by-tick precision, covering 1,750+ currency pairs with 2B+ data points since 2009. Used by forex and crypto trading applications.
- Futures Data Comprehensive futures coverage from CME, CBOT, NYMEX, and COMEX including 361K+ contracts with 260M+ data points since 2017. Generally available via Futures APIs in May 2026.
Quantifiable outcome
- Real-time data latency under 20ms
- +1 more outcomes
Companies that use Polygon.io
Customer profileNamed customers8 records
Segments3 records
Ideal customer profiles2 records
Polygon.io technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Polygon.io partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- NYSE (New York Stock Exchange)coreDirect fiber cross-connect partnership providing real-time and historical stock market data from NYSE. Massive is co-located in exchange datacenters with direct connectivity to major exchanges.
- NasdaqcoreDirect fiber cross-connect partnership providing market data access. Massive is co-located in exchange datacenters with direct connectivity infrastructure.
- CBOE (Cboe Global Markets)coreDirect connectivity to CBOE exchanges including CBOE Options, CBOT, NYMEX, and COMEX for futures and options market data.
- CME GroupcoreProvides futures data from CME, CBOT, COMEX, and NYMEX exchanges via Massive's Futures APIs.
Scale indicators10 records
Recent moves6 records
Expansion highlights6 records
Polygon.io competitors and assessment
Company assessmentBroad incumbents
- Bloomberg: Bloomberg operates the dominant terminal-based financial data and analytics platform, including B-PIPE market data feeds. Competes with Massive at the institutional end of the market with significantly broader product portfolio.
- LSEG (Refinitiv): LSEG/Refinitiv is a global incumbent in financial market data and infrastructure, offering exchange-grade data feeds alongside broader data, analytics, and workflow products. Operates in the same market data category with deeper enterprise penetration.
- Quandl (Nasdaq): Quandl, now part of Nasdaq, provides a broad financial and alternative data API platform serving institutional and developer customers. Comparable in API delivery and asset class breadth, with deeper institutional reach.
Direct peers
- Alpha Vantage: Alpha Vantage offers stock, forex, and crypto APIs with a freemium tier, popular among retail developers and small fintechs. Overlaps with Massive on core asset classes and developer GTM.
- Tiingo: Tiingo delivers end-of-day and intraday market data APIs for stocks, ETFs, crypto, and news, targeted at quant developers. Comparable developer audience and subscription pricing model.
- Trading Economics: Trading Economics provides economic indicators, forecasts, and market data via web and API to developers, analysts, and fintechs. Overlaps with Massive on API-delivered market and reference data.
- Finnhub: Finnhub provides real-time financial market data APIs (stocks, forex, crypto, fundamentals, alternative data) aimed at developers and fintech builders. Closely comparable in target customer and API-first delivery model.
- Intrinio: Intrinio offers a financial market data API for stocks, options, ETFs, and fundamentals, targeting fintech developers with subscription pricing. Directly competes with Massive on asset class coverage and developer-first delivery.
- Databento: Databento provides institutional-grade market data APIs and flat files for tick-level historical data across multiple asset classes. Comparable in delivery methods (API + flat files) and infrastructure-led positioning.
- Polygon.io: Polygon.io historically provided a developer-first stock, options, and crypto market data API with comparable APIs and client libraries. Closely comparable product and audience; market data overlap is near-complete.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Polygon.io social profiles
Digital presencePolygon.io financial estimates
Financial estimateRevenue estimate
Valuation estimate
Polygon.io leadership team
Management profileNumber of profiles
Polygon.io funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Polygon.io M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Polygon.io
What does Polygon.io do?
Polygon.io (doing business as Massive) provides institutional-grade financial market data through APIs to developers and fintech companies. The platform delivers real-time and historical data across stocks, options, indices, currencies, and futures via REST APIs, WebSockets, SQL queries, and S3 flat files. Its infrastructure is co-located in exchange datacenters with direct fiber cross-connects to NYSE, Nasdaq, and CBOE, enabling real-time data delivery at sub-20ms latency.
Is Polygon.io a public or private company?
Polygon.io is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Polygon.io founded?
Polygon.io was founded in 2016. It employs 11 to 50 people.
Where is Polygon.io based?
Polygon.io is headquartered in Atlanta, United States, in the North America region.
How does Polygon.io make money?
One revenue line is on record: API Subscription Access.
Who are Polygon.io's main competitors?
Broad incumbents on record are Bloomberg, LSEG (Refinitiv) and Quandl (Nasdaq). Direct peers are Alpha Vantage, Tiingo, Trading Economics, Finnhub, Intrinio, Databento and Polygon.io.
Does Polygon.io have an API?
Yes. Massive provides RESTful and WebSocket APIs for accessing real-time and historical market data across multiple asset classes including stocks, options, indices, currencies, and futures. The API supports JSON and CSV data formats and provides sub-20ms latency for real-time data. Data is available via Flat Files (S3 interface), REST API, WebSocket, and SQL Query. Developer documentation is at massive.com/docs.
What industry is Polygon.io in?
Polygon.io's product category is Financial Market Data API. Its primary akta.pro industry code is HDABAAAF, Data & Analytics Platforms (Data Warehousing, Lakes, Streaming), with a secondary code of FSAHAIAF, Real Assets — Digital Infrastructure (Data Centers, Fiber, Towers). Its NAICS code is 51821 and its SIC code is 7374.