---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/42414629.md"
description: "$XL2CSOPHYNIX(07709.HK)$XL2CSOPSMSN(07747.HK) I've looked up some information and will try to explain:Leveraged ETFs mainly rely on swap contracts to track the underlying. Simply put, they are just for reference, not linearly synchronized. If the volume is sufficient, even those underwater can be pulled up.Compounding decay, exchange rate differences, time differences, premiums, and management fees are all involved. However, the premium is obviously too high now, and it's not recommended to hold overnight.Not investment advice."
datetime: "2026-07-03T05:33:04.000Z"
locales:
  - [en](https://longbridge.com/en/topics/42414629.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/42414629.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/42414629.md)
author: "[与未来](https://longbridge.com/en/profiles/18888644.md)"
---

# $XL2CSOPHYNIX(07709.HK)$XL2CSOPSMSN(07747.HK) I've…


### Related Stocks

- [07709.HK](https://longbridge.com/en/quote/07709.HK.md)
- [07747.HK](https://longbridge.com/en/quote/07747.HK.md)

## Comments (6)

- **乌拉呜呜呜 · 2026-07-03T06:29:45.000Z**: Samsung premium 2.8, Hynix premium 17 points!
- **每天都吃肉 · 2026-07-03T05:37:46.000Z**: The premium is now only three or four points, you can hold it.
  - **与未来** (2026-07-03T05:39:29.000Z): I plan to buy some after the South Korean market closes; Samsung doesn't have much of a premium.
  - **每天都吃肉** (2026-07-03T05:40:14.000Z): Today's strategy is to start with Samsung, and then move to SK Hynix after its premium is eliminated.
  - **与未来** (2026-07-03T05:40:36.000Z): Right.
- **星海街小王子 · 2026-07-03T05:36:31.000Z**: These have little impact; the main issue is that the options position was liquidated yesterday.