> ## Documentation Index
> Fetch the complete documentation index at: https://gb.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Message Types

Messages (streams or "tables") can be referred to as Message Types, which are grouped and permissioned by the following Tokens. Each token groups specific message types:

| Token              | Description                                                              |
| ------------------ | ------------------------------------------------------------------------ |
| `EqtMktData`       | Stock quote and prints                                                   |
| `FutMktData`       | Futures quote and prints                                                 |
| `OptMktData`       | Options quote and prints                                                 |
| `SpreadMktData`    | Spread quote and markups                                                 |
| `SpreadExchData`   | Live public spread orders for each exchange (if available)               |
| `EqtSummaryData`   | Stock market summaries                                                   |
| `FutSummaryData`   | Futures market summaries                                                 |
| `OptSummaryData`   | Options market summaries                                                 |
| `EqtMarkData`      | Stock open and close marks                                               |
| `FutMarkData`      | Futures open and close (settlement) marks                                |
| `OptMarkData`      | Options open and close marks (includes surface marks and closing greeks) |
| `EqtExchImbalance` | Stock market auction imbalances                                          |
| `OptSurface`       | Options surfaces, at-the-money volatility and related                    |
| `OptAnalytics`     | Options implied quotes and risk slides                                   |
| `OptionDefinition` | Production definitions for options                                       |
| `FutureDefinition` | Production definitions for futures                                       |
| `EquityDefinition` | Production definitions for equities                                      |
| `GlobalDefinition` | Dividends, EarningsCalendars, Rates, StockBetas                          |
| `MLinkWs`          | MLink WebSocket admin messages                                           |
| `MLinkRest`        | MLink HTTP/REST admin messages                                           |
| `OptExchAuction`   | Live consolidated auction notice feed                                    |