---
title: "Memory Chips Surge in Overnight Session, Micron Up Over 3%, SanDisk Up Nearly 3%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/294424567.md"
description: "The memory chip sector rallied collectively during the overnight session. Micron Technology rose over 3% to $908.81, while SanDisk climbed nearly 3% to $1,350.28. Western Digital and Seagate Technology also advanced, signaling a notable recovery in sector sentiment."
datetime: "2026-07-30T22:46:35.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/294424567.md)
  - [en](https://longbridge.com/en/news/294424567.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/294424567.md)
---

# Memory Chips Surge in Overnight Session, Micron Up Over 3%, SanDisk Up Nearly 3%

During the overnight session on July 30, the memory chip sector displayed a broad-based rally, with mainstream stocks advancing collectively. As of press time, Micron Technology (MU.US) performed strongly in overnight trading, surging over 3% to $908.81, a significant rebound from the previous close of $874.66. The stock touched an intraday high of $911.04, indicating active capital inflow during the overnight session.

SanDisk (SNDK.US) followed closely, with an overnight gain of nearly 3%, currently trading at $1,350.28, further advancing from its regular session close of $1,279.96, and reaching a high of $1,365.00. Western Digital (WDC.US) and Seagate Technology (STX.US) also advanced in tandem, trading at $559.17 and $878.00 respectively in the overnight session, with gains of approximately 4.9% and 3.1%, marking a significant warming of overall sector sentiment.

Among derivative products, the Micron Bull (MUU.US) rose nearly 7.6% in the overnight session to $29.02, while the Micron Bear (MUD.US) fell approximately 3.5% to $11.26, showing clear directional divergence. Overall, memory chip stocks attracted capital favor during the overnight session, driven primarily by expectations of industry prosperity and post-market capital allocation. Investors may watch for sustained performance in the subsequent regular trading session.

### Related Stocks

- [MU.US](https://longbridge.com/en/quote/MU.US.md)
- [SNDK.US](https://longbridge.com/en/quote/SNDK.US.md)
- [WDC.US](https://longbridge.com/en/quote/WDC.US.md)
- [STX.US](https://longbridge.com/en/quote/STX.US.md)

## Related News & Research

- [What's Wrong With Micron Technology Stock?](https://longbridge.com/en/news/294710998.md)
- [Seagate Technology (NASDAQ:STX) Upgraded by Wall Street Zen to "Strong-Buy" Rating](https://longbridge.com/en/news/294571999.md)
- [Asset Dedication LLC Trims Stake in Micron Technology, Inc. $MU](https://longbridge.com/en/news/294598047.md)
- [Western Digital Corporation $WDC Shares Sold by Arkadios Wealth Advisors](https://longbridge.com/en/news/294468932.md)
- [Western Digital’s Earnings Will Test Whether Its AI Rally Has More Room](https://longbridge.com/en/news/294093863.md)