name: Polygon Vocabulary
description: >-
  Controlled vocabulary covering operational dimensions of the Polygon
  (Massive) market data platform — asset classes, channels, data types,
  market sessions, exchange identifiers, plan tiers, and capability
  categories used across REST and WebSocket APIs.
provider: Polygon
providerId: polygon
created: '2026-05-29'
modified: '2026-05-29'
sources:
  - https://polygon.io/docs
  - https://polygon.io/pricing
terms:
  assetClasses:
    - id: stocks
      label: Stocks
      description: US equities (CTA/UTP consolidated tape).
    - id: options
      label: Options
      description: OPRA-licensed US options contracts.
    - id: indices
      label: Indices
      description: Major US and global market indices (e.g., I:SPX, I:DJI).
    - id: forex
      label: Forex
      description: 1,000+ FX currency pairs.
    - id: crypto
      label: Crypto
      description: Aggregated cross-exchange cryptocurrency pairs.
    - id: futures
      label: Futures
      description: CME-licensed futures contracts.
  dataTypes:
    - id: aggregate
      label: Aggregate Bar
      description: OHLC bar over a custom time window (minute, hour, day, etc.).
    - id: trade
      label: Trade Tick
      description: Individual executed trade.
    - id: quote
      label: NBBO Quote
      description: National Best Bid and Offer or per-venue quote.
    - id: snapshot
      label: Snapshot
      description: Most recent state of a ticker, chain, or index.
    - id: book
      label: Level-2 Book
      description: Aggregated order book depth (crypto only on REST).
    - id: news
      label: News Article
      description: Ticker-tagged news article.
    - id: corporate-action
      label: Corporate Action
      description: Splits and dividends.
  channels:
    - id: T
      label: Trade Channel
      description: Per-trade ticks on stocks/options WebSocket.
    - id: Q
      label: Quote Channel
      description: NBBO quote ticks.
    - id: A
      label: Aggregate (Second) Channel
      description: Per-second aggregate bars.
    - id: AM
      label: Aggregate (Minute) Channel
      description: Per-minute aggregate bars.
    - id: XT
      label: Crypto Trade Channel
    - id: XQ
      label: Crypto Quote Channel
    - id: C
      label: Forex Quote Channel
    - id: CA
      label: Forex Aggregate Channel
  marketSessions:
    - id: pre-market
      label: Pre-Market
    - id: regular
      label: Regular Session
    - id: after-hours
      label: After Hours
    - id: closed
      label: Closed
  exchangeIdentifiers:
    - id: mic
      label: MIC
      description: ISO 10383 Market Identifier Code.
    - id: operating-mic
      label: Operating MIC
    - id: participant-id
      label: Participant ID
      description: SIP participant identifier.
  planTiers:
    - id: basic
      label: Basic (Free)
    - id: starter
      label: Starter
    - id: developer
      label: Developer
    - id: advanced
      label: Advanced
    - id: business
      label: Business / Enterprise
  capabilityCategories:
    - id: research
      label: Market Research
    - id: trading
      label: Trading Integration
    - id: surveillance
      label: Risk and Surveillance
    - id: analytics
      label: Analytics and Dashboards
    - id: backtest
      label: Backtesting
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com