---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/100000000877530.md"
description: "[Relationship between Stock Price and Volatility Spread] If we use a bi-weekly timeframe, plotting the return of $Rocket Lab(RKLB.US) stock price on the y-axis against the volatility spread on the x-axis, we can visualize how the volatility spread changes during periods of significant price drops or rallies over two weeks.The pink dots and dashed line in the chart below represent $Rocket Lab(RKLB.US), while blue represents $Apple(AAPL.US).Plotting four years of trading data on this chart reveals that when $Rocket Lab(RKLB.US)'s stock price falls, there is still a tendency for the volatility spread to rise, albeit very weakly, with a linear slope of only -0.03.For $Apple(AAPL.US), the stock price fluctuations within the bi-weekly timeframe are tightly distributed within +/-20%, and its volatility spread has remained positive over the years (partly due to long-term holders writing covered calls).The ups and downs of Apple's stock price show a stronger correlation with the volatility spread, with a linear fit slope of -0.241, which is 80 times that of $Rocket Lab(RKLB.US). This provides clear quantification: whenever stock price volatility occurs, the volatility spread of $Apple(AAPL.US) reacts accordingly, with an intensity 80 times higher than that of $Rocket Lab(RKLB.US)."
datetime: "2026-08-30T01:50:15.000Z"
locales:
  - [en](https://longbridge.com/en/topics/100000000877530.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/100000000877530.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/100000000877530.md)
author: "[CurryOption](https://longbridge.com/en/profiles/27650593.md)"
generator: "portal-rs"
---

# [Relationship between Stock Price and Volatility S…


### Related Stocks

- [RKLB.US](https://longbridge.com/en/quote/RKLB.US.md)
- [AAPL.US](https://longbridge.com/en/quote/AAPL.US.md)

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> **Disclaimer: This article is for reference only and does not constitute any investment advice.**