---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/42137393.md"
description: "Using thematic ETFs to view this round of correction is more intuitive: $VG Info Tech(VGT.US) fell by three to four points, while the two photonics and lithography-themed ones — $Tuttle Capital Pure Play Photonics ETF(FOTO.US)、$Corgi Lithography & Smcndctr Phtncs ETF(EUV.US) — fell more sharply, both dropping by six to seven points. The more focused on semiconductor sub-sectors and the higher the beta of the theme, the greater the elasticity during a correction; broad-based tech ETFs dilute non-semiconductor weightings, resulting in shallower declines. If you want to position along this line, thematic ETFs are amplifiers. Before the overall market risk appetite stabilizes, first check if the broad-based ETFs have held their 50-day moving average."
datetime: "2026-06-24T10:22:48.000Z"
locales:
  - [en](https://longbridge.com/en/topics/42137393.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/42137393.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/42137393.md)
author: "[凉风说财经](https://longbridge.com/en/profiles/26834935.md)"
---

# Using thematic ETFs to view this round of correcti…


### Related Stocks

- [EUV.US](https://longbridge.com/en/quote/EUV.US.md)
- [VGT.US](https://longbridge.com/en/quote/VGT.US.md)
- [FOTO.US](https://longbridge.com/en/quote/FOTO.US.md)
- [603166.CN](https://longbridge.com/en/quote/603166.CN.md)