---
title: "Memory Chips Post-Market Session Sees Mild Fluctuations, MU Down 0.24%, SNDK Down 0.45%, WDC Down 0.23%, STX Flat, MRAM Down 0.06%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/298080240.md"
description: "The memory chip sector showed mild fluctuations in post-market trading, with most mainstream stocks slightly lower. Micron (MU.US) fell 0.24% to $1014.20, SanDisk (SNDK.US) dropped 0.45% to $1732.12, Western Digital (WDC.US) declined 0.23% to $466.37, Seagate (STX.US) remained nearly flat at $849.27, and Everspin (MRAM.US) edged down 0.06% to $16.36. Among derivatives, MUD.US rose 0.41%, SNXX.US fell 0.81%."
datetime: "2026-09-04T22:47:00.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/298080240.md)
  - [en](https://longbridge.com/en/news/298080240.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/298080240.md)
generator: "portal-rs"
---

# Memory Chips Post-Market Session Sees Mild Fluctuations, MU Down 0.24%, SNDK Down 0.45%, WDC Down 0.23%, STX Flat, MRAM Down 0.06%

The memory chip sector exhibited mild fluctuations during the post-market session on September 4, with most mainstream stocks posting slight declines and overall stable performance. As of press time, Micron Technology (**MU.US**) traded at **$1014.20** in after-hours, down **0.24%** from the previous close; SanDisk (**SNDK.US**) stood at **$1732.12**, a **0.45%** drop; Western Digital (**WDC.US**) was at **$466.37**, slightly lower by **0.23%**. Seagate Technology (**STX.US**) remained nearly flat at **$849.27**, while Everspin Technologies (**MRAM.US**) edged down **0.06%** to **$16.36**.

On the derivatives front, ETFs tracking the memory chip industry showed mixed performance. MUU.US fell 0.26% to $34.16, MUD.US rose 0.41% to $9.84, SNXX.US declined 0.81% to $17.22, and SNDQ.US inched up 0.17% to $11.80. Overall trading volume in the sector decreased compared to regular hours, reflecting cautious market sentiment as participants await further industry catalysts.

Analysts noted that recent fluctuations in the memory chip sector have been tempered by supply-demand dynamics and industry inventory adjustments. Lower liquidity in post-market trading contributed to limited price swings. Investors are advised to monitor upcoming earnings reports and industry demand data for insights into the sector's future direction.

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