# Type 2 records

Type 2 data is often referred to in the financial industry as "level 2" data, as it is used for level 2 quotes. Level 2 quote data comprises several price quotes per subject, coming from different market makers or traders.

Here’s a record containing type 2 data. It contains equity information (IBM stock), where there are several active market makers.

![Record_type_2_data_150ppi](../../images/Record_type_2_data_150ppi.png)

The `/IBM` subject (primary key) has a secondary key of Market Maker (`MM`). The record contains quote data for each of the market makers providing quotes (`MM1`, `MM2`, and so on). This allows a subscriber to see the full set of quotes in the market. An update to the record will always have a market maker associated with it, so only the fields with that market maker as a secondary key will be overwritten.

A typical use for type 2 data is to feed the display of a market order book that is in a tabular format:

**/IBM**

| MM (Market Maker) | BidSize | BidPrice | AskPrice | AskSize |
| --- | --- | --- | --- | --- |
| `MM1` | `1000` | `1.9814` | `1.9823` | `1000` |
| `MM2` | `2000` | `1.9926` | `1.9999` | `2000` |
| `MM3` | `1000` | `1.9602` | `1.9613` | `3000` |

A single field in the table can be easily updated from the record: for example, `Key="MM1" AskSize="2500"`.

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**See also:**

* [Type 1 records](datasource-type-1-data.md)
* [Type 3 records](datasource-type-3-data.md)
* [Field definitions](datasource-field-definitions.md)
* [Field definitions format](datasource-field-definition-format.md)