> For the complete documentation index, see [llms.txt](https://docs.strike.fun/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.strike.fun/zh/xie-yi/fees-and-incentives.md).

# 费用与激励

## 交易费用

STRIKE 使用 **uniform fee model**，买卖双方按 **50/50 buyer-seller split** 分摊费用：

| Parameter        | Rate             | Description         |
| ---------------- | ---------------- | ------------------- |
| **总费用**          | 20 bps (0.20%)   | 在买方和卖方之间平均分摊        |
| **Buy-side 费用**  | `floor(fee / 2)` | 从买方成交抵押资产中扣除        |
| **Sell-side 费用** | `ceil(fee / 2)`  | 从卖方 USDT payout 中扣除 |

* 不区分 maker/taker，双方各支付一半费用
* 整数 rounding 产生的额外 wei 归协议所有（sell side 支付 `ceil`）
* 费用会随 batch 清算原子化扣除，并内联完成
* 所有费用进入 `protocolFeeCollector` 地址

## 协议 Revenue

所有交易费用都会流向协议费用收集器地址，用于资助 development 与 operations。

## 结算与 Keeper 成本

市场可以由任何人使用有效 Pyth data 无需许可地结算。通常由托管 keeper 执行结算。当前核心 CLOB 合约不支付 resolver bounty。

## Anti-Spam / DoS Prevention

| Mechanism            | 目的                                      |
| -------------------- | --------------------------------------- |
| **Minimum lot size** | 防止 dust 订单（`MIN_LOTS = 1`，即 `$0.01`）    |
| **全额抵押锁定**           | 下单存在经济成本，USDT 会锁定到成交或取消                 |
| **需要 ERC-20 授权**     | 用户下单前必须授权 Vault                         |
| **用户级活跃订单上限**        | 每个市场 `MAX_USER_ORDERS = 20`，防止单个地址刷屏订单簿 |

用户级订单上限通过 `activeOrderCount` mapping 跟踪，并在 `placeOrder`、`placeOrders` 和 `replaceOrders` 中执行。订单取消或结算后会递减该计数。

## Gas 估算

| Action                         | Est. Gas       | Est. Cost |
| ------------------------------ | -------------- | --------- |
| Approve 金库 (once)              | \~46k          | \~$0.001  |
| 提交订单                           | \~250k         | \~$0.008  |
| 取消订单                           | \~100k         | \~$0.003  |
| Clear batch / settlement chunk | 取决于 batch size | 取决于网络     |
| 结算市场                           | \~300k         | \~$0.009  |

*估算仅供参考。订单簿市场的头寸结算通过 `clearBatch` 处理；较大的 batch 可能需要多个 settlement chunks。*


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