---
title: "Memory Chips Slide in Overnight Session, Micron Down Over 4%, SanDisk Nearly 4%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/294010332.md"
description: "The memory chip sector fell broadly in overnight trading. Micron Technology dropped over 4% to $861.97, while SanDisk declined nearly 4% to $1,223.53. Major names including Western Digital and Seagate Technology also posted notable losses amid weak sentiment."
datetime: "2026-07-28T04:46:56.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/294010332.md)
  - [en](https://longbridge.com/en/news/294010332.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/294010332.md)
generator: "portal-rs"
---

# Memory Chips Slide in Overnight Session, Micron Down Over 4%, SanDisk Nearly 4%

The memory chip sector faced broad selling pressure during the overnight session, with all major names trading lower. As of press time, Micron Technology (MU.US) was down over 4% in overnight trading at $861.97, significantly below its previous close of $900.20, with an intraday low of $858.12. SanDisk (SNDK.US) also came under pressure, falling nearly 4% to $1,223.53, down notably from its previous close of $1,278.23.

Other major names also struggled. Western Digital (WDC.US) traded at $475.28 in the overnight session, down approximately 4.55%, while Seagate Technology (STX.US) was at $788.00, declining about 3.55%. MRAM.US traded at $14.45 in overnight hours, down roughly 3.34%. Among derivative names, MUU.US, MUD.US, SNXX.US, and SNDQ.US all showed varying degrees of decline. SNXX.US fell 9.34% to $10.19 in overnight trading, while MUD.US rose 4.27% to $12.45, standing out as one of the few gainers in the sector.

Overall, sentiment in the memory chip sector turned negative during the overnight session, with most names declining more than 3%, indicating investor caution on near-term prospects. While some divergence existed within the sector, the broad weakness among major leaders could weigh on the next day's open.

### 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)
- [MRAM.US](https://longbridge.com/en/quote/MRAM.US.md)

## Related News & Research

- [MU Stock Alert: What to Know as Micron Appoints New Executives](https://longbridge.com/en/news/297080454.md)
- [Cynthia Tregillis Sells 1,007 Shares of Western Digital (NASDAQ:WDC) Stock](https://longbridge.com/en/news/297248306.md)
- [Micron Stock Faces Tight Supply as AI Demand Accelerates](https://longbridge.com/en/news/297191357.md)
- [Micron Technology, Inc. $MU Holdings Increased by Trivium Point Advisory LLC](https://longbridge.com/en/news/297292952.md)
- [Western Digital Chief Legal Officer Cynthia Tregillis disposes of common shares worth $1,250,449.43](https://longbridge.com/en/news/297243818.md)

---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**