---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/31372933.md"
description: "$TNA 250725 36 Call(TNA250725C36000.US)I've been learning options for almost a month, trading very conservatively. This is the first time I've turned the cost into a negative, marking this moment."
datetime: "2025-07-01T17:31:01.000Z"
locales:
  - [en](https://longbridge.com/en/topics/31372933.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/31372933.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/31372933.md)
author: "[windtch](https://longbridge.com/en/profiles/18133131.md)"
---

# $TNA 250725 36 Call(TNA250725C36000.US)I've been l…