做多做空与持仓成本

Lesson Overview

In "Complete Guide to Forex Markets" → "杠杆与交易机制", this lesson "做多做空与持仓成本" builds knowledge you can apply immediately.

多头先买后卖，空头先卖后买。空头盈利来自卖出价高于回补价，仍要支付双边成本。隔夜费应按方向、计息日、单位与账户换汇检查，不能只用央行利差替代。 分别写多头与空头的成交侧；从合约说明抄出swap单位和特殊计息规则。没有可核验规格时，只计算明确给定的假设费率。 本课作业：空头10,000EUR在bid1.1000卖出、ask1.0970回补，假设三日隔夜费合计−1.80USD，佣金2USD。求净结果。

Core Concepts

These points align with the video walkthrough—take notes as you watch.

• ▸多头先买后卖，空头先卖后买。空头盈利来自卖出价高于回补价，仍要支付双边成本。隔夜费应按方向、计息日、单位与账户换汇检查，不能只用央行利差替代。
• ▸分别写多头与空头的成交侧；从合约说明抄出swap单位和特殊计息规则。没有可核验规格时，只计算明确给定的假设费率。
• ▸本课作业：空头10,000EUR在bid1.1000卖出、ask1.0970回补，假设三日隔夜费合计−1.80USD，佣金2USD。求净结果。

Practical Application

After studying, complete the companion practice lesson to move from understanding to doing.

• ▸Validate concepts on MT4/MT5 demo
• ▸Mark structures/indicators mentioned on live charts
• ▸Log operational steps in your trading journal

FAQ

• ▸Q: How does this lesson fit the course? A: Part of "杠杆与交易机制"—follow the curriculum order.
• ▸Q: What do I need? A: Demo account and notes; quant lessons need a Python environment.
• ▸Q: How do I know I've mastered it? A: Pass the quiz and explain three key points of 做多做空与持仓成本 on your own.