# MEFF Exchange Enumerations

MEFF is the Spanish derivatives exchange, offering trading in futures and options on Spanish equities, indices, and interest rates.

The following fields have Enumerations:

* CALL_PUT_IND - “C” - Call option, “P” - Put option
* MKT_PHASE - Indicates the instrument’s current market phase, as specified by the trading venue
* MMT_ALGO_IND - Identifies whether a trade involved an algorithmic order.
* MMT_BENCHMARK_IND - Identifies whether a trade was priced according to a defined benchmark (e.g. VWAP) or reference price (e.g. midpoint of the primary market BBO), or whether it was part of a trade in multiple instruments (contingent trade or portfolio trade).
* MMT_CROSS_IND - Identifies agency cross trades, where a broker crossed two client orders outside the order book.
* MMT_DEFERRAL_TYPE - Type of publication deferral or subsequent enrichment applied to a trade report.
* MMT_DUP_IND - Identifies trades reported to more than one Approved Publication Arrangement.
* MMT_MKT_MECH - Market mechanism through which a trade was executed.
* MMT_MOD_IND - Identifies trade cancellations, or amendments of a previous trade.
* MMT_NEGOTIATED_IND - Indicates privately negotiated trades, or Systematic Internaliser trades exempt from pre-trade transparency.
* MMT_PRICE_FORMING_IND - Identifies whether a trade is price-forming, or contributes to the price discovery process.
* MMT_PUB_MODE - Identifies whether a trade was subject to delayed publication, and the reason for the deferral.
* MMT_TRANS_CAT - Identifies various special categories of trade.
* MMT_TRD_MODE - Trading period during which an on-book trade was executed, or origin of an off-book trade report (on-exchange / off-exchange / SI).
* TRADE_TYPE - Type of trade

#### CALL_PUT_IND - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| C                | Call option               |
| P                | Put option                |

#### MKT_PHASE - Enumeration

| Enumeration ID   | Enumeration Description       |
|------------------|-------------------------------|
| 1                | Pre-trading                   |
| 100              | Trading at closing price      |
| 101              | End of closing auction        |
| 102              | Closing price calculation     |
| 2                | Opening auction               |
| 202              | Not started                   |
| 203              | Open                          |
| 204              | Closed                        |
| 3                | Continuous trading            |
| 4                | Closing auction               |
| 5                | Post-trading                  |
| 6                | Intraday auction              |
| 9                | Unscheduled auction           |
| A                | Accepting orders              |
| a                | Auction                       |
| B                | Break                         |
| C                | Closed                        |
| c                | Extended closing auction      |
| E                | Post-trading                  |
| H                | Halted                        |
| I                | Intraday auction              |
| L                | Closing auction               |
| m                | Manual auction                |
| M                | Pre-trading                   |
| n                | Not tradable                  |
| o                | Extended opening auction      |
| r                | Halted by Regulator           |
| s                | Halted by Market Surveillance |
| T                | Continuous trading            |
| U                | Underlying halted             |
| V                | Suspended                     |
| v                | Volatility auction            |
| Z                | Trading at last price         |

#### MMT_ALGO_IND - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Not an algorithmic trade  |
| H                | Algorithmic trade         |

#### MMT_BENCHMARK_IND - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Not a benchmark trade     |
| B                | Benchmark trade           |
| S                | Reference price trade     |

#### MMT_CROSS_IND - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Not a cross trade         |
| X                | Agency cross trade        |

#### MMT_DEFERRAL_TYPE - Enumeration

| Enumeration ID   | Enumeration Description                                                          |
|------------------|----------------------------------------------------------------------------------|
| -                | No deferral / unspecified                                                        |
| 1                | Limited details                                                                  |
| 2                | Daily aggregated trade                                                           |
| 3                | Volume omission trade                                                            |
| 4                | 4 weeks aggregated trade                                                         |
| 5                | Indefinite aggregated trade                                                      |
| 6                | Volume omission trade eligible for enrichment in aggregated form                 |
| 7                | Full details of earlier Limited Details trade                                    |
| 8                | Full details of earlier Daily Aggregated trade                                   |
| 9                | Full details of earlier Volume Omission trade                                    |
| V                | Full details of 4 Weeks Aggregated trade                                         |
| W                | Full details of Volume Omission trade eligible for enrichment in aggregated form |

#### MMT_DUP_IND - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Unique trade report       |

#### MMT_MKT_MECH - Enumeration

|   Enumeration ID | Enumeration Description   |
|------------------|---------------------------|
|                1 | Central Limit Order Book  |
|                4 | Off Book                  |
|                6 | Request for Quote         |

#### MMT_MOD_IND - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | New trade                 |
| A                | Amended trade             |
| C                | Trade cancellation        |

#### MMT_NEGOTIATED_IND - Enumeration

| Enumeration ID   | Enumeration Description                                                    |
|------------------|----------------------------------------------------------------------------|
| -                | Not a negotiated trade                                                     |
| 1                | Negotiated trade in liquid instruments                                     |
| 2                | Negotiated trade in illiquid instruments                                   |
| 3                | Negotiated trade subject to conditions other than the current market price |
| N                | Negotiated trade                                                           |

#### MMT_PRICE_FORMING_IND - Enumeration

| Enumeration ID   | Enumeration Description                               |
|------------------|-------------------------------------------------------|
| J                | Trade not contributing to the price discovery process |
| N                | Price not available but pending                       |
| P                | Plain vanilla (price-forming) trade                   |
| T                | Non-price forming (technical) trade                   |

#### MMT_PUB_MODE - Enumeration

| Enumeration ID   | Enumeration Description                                                    |
|------------------|----------------------------------------------------------------------------|
| -                | Immediate publication                                                      |
| 1                | Delayed publication (including late reported)                              |
| 2                | Deferred publication (Large in Scale)                                      |
| 3                | Deferred publication (illiquid instrument)                                 |
| 4                | Deferred publication (size specific to instrument)                         |
| 5                | Deferred publication (illiquid instrument and size specific to instrument) |
| 6                | Deferred publication (illiquid instrument and Large in Scale)              |

#### MMT_TRANS_CAT - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Not applicable            |
| Z                | Package trade             |

#### MMT_TRD_MODE - Enumeration

| Enumeration ID   | Enumeration Description       |
|------------------|-------------------------------|
| 1                | Auction                       |
| 2                | Continuous trading            |
| 5                | Trade reporting (on-exchange) |
| I                | Intraday auction              |
| K                | Closing auction               |
| O                | Opening auction               |
| U                | Unscheduled auction           |

#### TRADE_TYPE - Enumeration

| Enumeration ID   | Enumeration Description                      |
|------------------|----------------------------------------------|
| 0                | Regular trade                                |
| 1                | Cross trade (outside hours) [until 20221117] |
| 2                | Cross trade                                  |
| 3                | Delta trade                                  |
| 4                | Spread trade [until 20241231]                |
| 5                | Strategy leg trade                           |
| RFQ              | RFQ trade                                    |