> ## Documentation Index
> Fetch the complete documentation index at: https://docs.qfex.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 参考数据

参考数据返回所有可用交易品种及各自的参考参数。

> [!NOTE]
>
> 也可通过 REST `https://api.qfex.com/refdata` 获取。判断各品种的资金费用行为时，请使用 `market_hours`，详见[资金费率](https://docs.qfex.com/cn/qfex/funding.md)。

## 响应结构示例

> WebSocket 载荷与 REST 字段一致。单条消息可能包含一个或多个交易品种。

```json theme={null}
{
  "type": "refdata",
  "data": [
    {
      "clobPairId": "4",
      "symbol": "GOOG-USD",
      "underlier_price": "154.16",
      "price_change_24h": "-2.1",
      "tick_size": "0.05",
      "lot_size": "0.001",
      "min_price": "112",
      "max_price": "209",
      "min_quantity": "0.001",
      "max_quantity": "100000000",
      "base_asset": "GOOG",
      "quote_asset": "USD",
      "margin_asset": "USD",
      "order_time_in_force": ["GTC", "IOC", "FOK"],
      "order_types": ["LIMIT", "MARKET", "ALO"],
      "default_max_leverage": 20,
      "market_hours": {
        "tz": "America/New_York",
        "monday": { "open": "04:00:00", "close": "20:00:00" },
        "tuesday": { "open": "04:00:00", "close": "20:00:00" },
        "wednesday": { "open": "04:00:00", "close": "20:00:00" },
        "thursday": { "open": "04:00:00", "close": "20:00:00" },
        "friday": { "open": "04:00:00", "close": "20:00:00" }
      }
    }
  ]
}
```


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