---
title: "Memory Chips Tumble in Overnight Session, Micron Down Nearly 7%, SanDisk Nearly 11%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/293808277.md"
description: "The memory chip sector fell collectively during the overnight session, with Micron Technology and SanDisk leading the decline. Western Digital and Seagate Technology also retreated, while small-cap stocks like MRAM followed suit amid rising risk aversion."
datetime: "2026-07-25T01:53:10.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/293808277.md)
  - [en](https://longbridge.com/en/news/293808277.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/293808277.md)
---

# Memory Chips Tumble in Overnight Session, Micron Down Nearly 7%, SanDisk Nearly 11%

The memory chip sector faced significant selling pressure during the overnight session, with major stocks closing lower across the board. As of press time, Micron Technology (MU.US) traded at $920.95, down 6.99% from the previous close. SanDisk (SNDK.US) performed even weaker, dropping 10.79% to $1,436.56. Western Digital (WDC.US) and Seagate Technology (STX.US) fell 6.89% and 6.75% respectively, closing at $519.80 and $851.69.

In the 细分 sector, MRAM (MRAM.US) traded at $15.09 in the overnight session, down 9.10%. Among derivative 标的，MUU.US, MUD.US, SNXX.US, and SNDQ.US also showed synchronized downward trends. Notably, SNXX.US plunged 21.29%, while SNDQ.US bucked the trend with a 22.12% gain, indicating intensified capital divergence within the sector. Overall, memory chip stocks lacked buying support during the overnight session, with investor concerns over short-term supply-demand dynamics dominating market sentiment.

In terms of trading volume, Micron Technology saw active overnight trading with significantly amplified turnover, suggesting some capital positioning at lower levels. SanDisk and Western Digital also recorded high turnover rates, reflecting divergent market expectations on the short-term adjustment magnitude of the sector. Under the dual pressure of macro interest rate fluctuations and industry inventory cycle adjustments, the memory chip sector may maintain a volatile consolidation pattern in the near term. Investors should closely monitor subsequent earnings guidance and industry demand recovery signals.

### 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)

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