---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/42426091.md"
description: "What are options:  - Option: A contract that represents a future right;  - Call option: The right to buy something in the future.  - Put option: The right to sell something in the future.  - European option: The buyer can only exercise the right on the expiration date.- American option: An option where the right can be exercised on any day before expiration. —《3-Hour Crash Course on Options》"
datetime: "2026-07-05T04:44:06.000Z"
locales:
  - [en](https://longbridge.com/en/topics/42426091.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/42426091.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/42426091.md)
author: "[豪贼](https://longbridge.com/en/profiles/10720720.md)"
---

# What are options:  - Option: A contract that repre…