> For the complete documentation index, see [llms.txt](https://docs.jaspervault.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.jaspervault.io/zhong-wen-wen-dang/fei-yong-yu-gui-ze/he-yue-jiao-yi-fei-yong.md).

# 合约交易费用

合约交易可能涉及交易成本、滑点、Funding 和强平相关费用。

***

### 交易成本

Jasper Vault 可能根据当前产品规则收取或不收取特定交易费用。

用户应以下单页面展示为准。

***

### 滑点成本

即使交易手续费较低，用户仍可能承担报价差异或滑点成本。

滑点可能受到订单大小、市场波动和流动性影响。

***

### Funding 成本

如果用户持有永续合约仓位，可能需要支付或获得 Funding。

长期持仓用户应特别关注 Funding 成本。

***

### 强平相关费用

如果仓位被强平，可能产生强平相关费用。

用户应尽量避免仓位接近强平价格。

***

### 下单前请确认

每次交易前，请确认：

* 预估成交价格
* 仓位大小
* 杠杆倍数
* 强平价格
* Funding
* 是否开启永续合约保护（PP）
* 保护费用
* 其他页面显示费用


---

# Agent Instructions
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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.jaspervault.io/zhong-wen-wen-dang/fei-yong-yu-gui-ze/he-yue-jiao-yi-fei-yong.md?ask=<question>&goal=<endgoal>
```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.