---
title: "Memory Chips Slide in Post-Market Trading, Micron Down 5.29%, SanDisk Falls 7.36%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/293781151.md"
description: "The memory chip sector weakened in post-market trading with broad declines among leading stocks. Micron dropped over 5%, SanDisk fell nearly 7.4%, while Western Digital and Seagate also retreated, reflecting bearish sentiment."
datetime: "2026-07-24T16:46:20.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/293781151.md)
  - [en](https://longbridge.com/en/news/293781151.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/293781151.md)
---

# Memory Chips Slide in Post-Market Trading, Micron Down 5.29%, SanDisk Falls 7.36%

The memory chip sector faced significant selling pressure during post-market trading, with leading stocks declining across the board. As of press time, sector heavyweight Micron Technology (MU.US) traded at $987.29, down 5.29% from the previous close. SanDisk (SNDK.US) performed even weaker, dropping 7.36% to $1,615.99, leading the sector's decline.

Other major stocks were not spared either. Western Digital (WDC.US) fell 4.15% in post-market trading to $560.63, while Seagate Technology (STX.US) declined 4.06% to $918.01. Everspin Technologies (MRAM.US) edged down 0.01% to $16.60. On the derivative front, Micron-related ETFs and leveraged products retreated in tandem, with MUU.US down 5.28%, MUD.US up 4.95%, SNXX.US falling 14.81%, and SNDQ.US gaining 15.08%, indicating heightened market volatility.

Overall, the memory chip sector turned weaker in post-market trading following the previous day's volatility. With major manufacturers' stocks retreating collectively, market concerns about the industry's short-term supply-demand dynamics have resurfaced. Investors should closely monitor upcoming earnings guidance and industry inventory data changes.

### 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

- [What's Wrong With Micron Technology Stock?](https://longbridge.com/en/news/294710998.md)
- [Major Executive Stock Moves Rock Seagate Tech](https://longbridge.com/en/news/294897877.md)
- [Kwmg LLC Cuts Position in Seagate Technology Holdings PLC $STX](https://longbridge.com/en/news/295297936.md)
- [Key facts: Micron (MU) Boosts DRAM Share; Debuts PCIe Gen6 Platform](https://longbridge.com/en/news/294924974.md)
- ["No Real Change in Fundamentals," Says Top BofA Analyst, Keeping Bullish View on Micron Stock (MU)](https://longbridge.com/en/news/294875336.md)