---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/39076104.md"
description: "$XL2CSOPHYNIX(07709.HK) Can any expert explain the tracking error of the 2x leverage? If the underlying stock rises 12%, this should be around 24%."
datetime: "2026-03-05T06:23:11.000Z"
locales:
  - [en](https://longbridge.com/en/topics/39076104.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/39076104.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/39076104.md)
author: "[ETF圣体](https://longbridge.com/en/profiles/20893109.md)"
---

# $XL2CSOPHYNIX(07709.HK) Can any expert explain the…


### Related Stocks

- [07709.HK](https://longbridge.com/en/quote/07709.HK.md)

## Comments (3)

- **ETF圣体 · 2026-03-05T06:59:24.000Z**: Is buying EWY on margin better than using double leverage? Leverage has decay and tracking error.
- **新用户_xxIuwv · 2026-03-05T06:27:10.000Z · 👍 1**: This is tracked using derivatives. Both the time to expiry of the derivatives and the stock price volatility can cause significant decay. The more volatile the underlying stock, the greater the decay.
  - **ETF圣体** (2026-03-05T06:45:30.000Z): Feels like this is even worse than the EWY index.