---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/40062685.md"
description: "SEALSQ surged 9% to lead the gains, Amphenol rose slightly by 1%, STMicroelectronics and Tianyue Advanced were basically flat, and Tianyu Semiconductor fell slightly — the direction of these semiconductor manufacturing stocks has been quite messy recently."
datetime: "2026-04-21T10:55:17.000Z"
locales:
  - [en](https://longbridge.com/en/topics/40062685.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/40062685.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/40062685.md)
author: "[coco](https://longbridge.com/en/profiles/26788081.md)"
---

# SEALSQ surged 9% to lead the gains, Amphenol rose …


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