# Borsa Italiana Derivatives (IDEM) Enumerations

IDEM is the derivatives market operated by Borsa Italiana (Italian Stock Exchange), trading equity, energy and fixed income derivatives

The following fields have Enumerations:

* 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_DIVIDEND_IND - Identifies whether a trade includes special dividend arrangements, e.g. a trade sold cum-dividend during an ex-dividend period.
* MMT_MKT_MECH - Market mechanism through which a trade was executed.
* MMT_MOD_IND - Identifies trade cancellations, or amendments of a previous trade.
* MMT_OFF_BOOK_AUTO_IND - Identifies whether an off-book trade report was executed via a manual or automated process.
* MMT_PRICE_FORMING_IND - Identifies whether a trade is price-forming, or contributes to the price discovery process.
* 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

#### MMT_BENCHMARK_IND - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Not a benchmark trade     |

#### MMT_CROSS_IND - Enumeration

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

#### MMT_DIVIDEND_IND - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Not applicable            |

#### MMT_MKT_MECH - Enumeration

|   Enumeration ID | Enumeration Description   |
|------------------|---------------------------|
|                1 | Central Limit Order Book  |
|                4 | Off Book                  |

#### MMT_MOD_IND - Enumeration

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

#### MMT_OFF_BOOK_AUTO_IND - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Not applicable            |

#### 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                   |
| Z                | Price not applicable                                  |

#### MMT_TRANS_CAT - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Not applicable            |
| Y                | Exchange for Physical     |
| Z                | Package trade             |

#### MMT_TRD_MODE - Enumeration

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

#### TRADE_TYPE - Enumeration

| Enumeration ID   | Enumeration Description                 |
|------------------|-----------------------------------------|
| 0                | Regular trade                           |
| 1                | Implied trade [until 20240322]          |
| 3                | Late trade [until 20240322]             |
| 4                | Strategy leg trade                      |
| 5                | Exchange Granted trade [until 20240322] |
| 6                | Block trade [until 20240322]            |
| 7                | Committed block trade [until 20240322]  |
| 8                | Committed trade [until 20240322]        |
| 9                | Cross trade [until 20240322]            |
| AA               | Against actual                          |
| DN               | Delta Neutral trade                     |
| EFS              | Exchange for Swap                       |
| GC               | Guaranteed cross                        |
| LIS              | Large in Scale (LIS) trade              |
| LISP             | Large in Scale Package Trade            |