# Book ticker stream

## Stream Description

Best bid and ask, Binance-shaped. **This is the same underlying quote as `@tick`** — MT5 publishes
one bid and one ask with no size attached, so `B` and `A` are always `"0"`. The stream exists so a
Binance-shaped client can subscribe to the name it expects.

If you want the real book, use [`@depth`](/websocket-market-streams/symbol-depth-stream.md). If you want direction and tick
volume, use [`@tick`](/websocket-market-streams/tick-stream.md) — it is strictly more informative than this stream.

## Stream Name

`<SYMBOL>@bookTicker`

## Response Example

```json
{"e":"bookTicker","E":1789012345678,"s":"XAUUSD","b":"2331.15","B":"0","a":"2331.42","A":"0","T":1789012345678}
```

| Field | Type | Description |
| - | - | - |
| `e` | STRING | `"bookTicker"` |
| `E` | LONG | Event time, Unix ms. |
| `s` | STRING | Symbol. |
| `b` | DECIMAL | Best bid price. |
| `B` | DECIMAL | Best bid quantity. Always `"0"`. |
| `a` | DECIMAL | Best ask price. |
| `A` | DECIMAL | Best ask quantity. Always `"0"`. |
| `T` | LONG | Quote time, Unix ms. |

There is no update id (`u`) — there is no book to sequence.