---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/40097116.md"
description: "US stock options free combination trading, with the margin used after combination; and Hong Kong stock options support, can both be launched faster, huh?"
datetime: "2026-04-22T12:24:52.000Z"
locales:
  - [en](https://longbridge.com/en/topics/40097116.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/40097116.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/40097116.md)
author: "[ethanzhou](https://longbridge.com/en/profiles/22602788.md)"
---

# US stock options free combination trading, with th…