# Hong Kong Stock Exchange Enumerations

The Hong Kong Stock Exchange (HKEX) offers trading in equities, bonds, ETFs, and derivatives issued by Hong Kong and international companies.

The following fields have Enumerations:

* BOOK_TYPE - Type of order book or trading mechanism through which a trade was executed.
* CALL_PUT_IND - “C” - Call option, “P” - Put option
* MKT_PHASE - Indicates the instrument’s current market phase, as specified by the trading venue
* TRADE_PERIOD - Market period during which a trade was executed.
* TRADE_TYPE - Type of trade

#### BOOK_TYPE - Enumeration

|   Enumeration ID | Enumeration Description   |
|------------------|---------------------------|
|                0 | Lit order book            |
|                1 | Off-book                  |
|                3 | Odd lot book              |

#### CALL_PUT_IND - Enumeration

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

#### MKT_PHASE - Enumeration

|   Enumeration ID | Enumeration Description             |
|------------------|-------------------------------------|
|               10 | End of day                          |
|              105 | Reference price fixing              |
|              106 | No cancellation                     |
|              107 | Randomized closing auction matching |
|              108 | Randomized matching                 |
|               15 | Continuous trading                  |
|               16 | Closed                              |
|               17 | Exchange intervention               |
|                3 | Pre-trading                         |
|               36 | Opening auction matching            |
|                4 | Closing auction matching            |
|               44 | No cancel / modification            |
|                5 | Closing auction call                |
|               58 | Pause                               |
|               67 | Order cancellation                  |
|               69 | Opening auction call                |

#### TRADE_PERIOD - Enumeration

| Enumeration ID   | Enumeration Description   |
|------------------|---------------------------|
| -                | Regular trading           |
| A                | Auction                   |
| C                | Closing auction           |
| O                | Opening auction           |
| U                | Unscheduled auction       |

#### TRADE_TYPE - Enumeration

|   Enumeration ID | Enumeration Description                |
|------------------|----------------------------------------|
|                0 | Automatch                              |
|              104 | Overseas trade                         |
|               15 | Non-direct off-exchange trade          |
|               20 | Late trade (previous day off-exchange) |
|               25 | Auction trade                          |
|               30 | Direct off-exchange trade              |
|               31 | Automatch internalised trade           |
|                4 | Odd lot                                |