---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/40190255.md"
description: "$BRKB 270115 500 Call(BRKB270115C500000.US)This option is a bit toxic. Why does it fall more when the underlying stock falls, and rise less when the underlying stock rises?"
datetime: "2026-04-24T16:06:46.000Z"
locales:
  - [en](https://longbridge.com/en/topics/40190255.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/40190255.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/40190255.md)
author: "[今天天气真好](https://longbridge.com/en/profiles/11314081.md)"
---

# $BRKB 270115 500 Call(BRKB270115C500000.US)This op…


## Comments (1)

- **FreeBird2025 · 2026-05-04T23:24:46.000Z**: Need to brush up on some basics, IV will accelerate its decline after the earnings report.