---
title: "Memory Chips Surge in Overnight Session, Micron Up Nearly 8%, SanDisk Up Nearly 3%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296582832.md"
description: "During the overnight session on August 20, the memory chip sector rallied broadly. Micron Technology led gains with a nearly 8% rise, while SanDisk and Western Digital also advanced, signaling a significant sentiment recovery."
datetime: "2026-08-21T07:46:14.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296582832.md)
  - [en](https://longbridge.com/en/news/296582832.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296582832.md)
generator: "portal-rs"
---

# Memory Chips Surge in Overnight Session, Micron Up Nearly 8%, SanDisk Up Nearly 3%

During the overnight session on August 20, the memory chip sector showed broad gains, with mainstream stocks trading firmly in positive territory. As of press time, sector leader Micron Technology (MU.US) performed most strongly, quoting at $982.40 in overnight trading, up $8.07 from the previous close, a gain of **0.83%**; referencing regular session performance, the stock touched a high of $977.28 intraday with significant volatility, extending its strength into the overnight session.

Other mainstream names also followed higher. SanDisk (SNDK.US) quoted at $1,609.00 in overnight trading, up $8.38 or **0.52%**; Western Digital (WDC.US) traded at $477.61 overnight, up **1.83%**; Seagate Technology (STX.US) was at $864.50, gaining **1.68%**. Everspin Technologies (MRAM.US) quoted at $17.13, up **0.94%**. Buying activity across the sector was active during the overnight session, with clear signs of capital inflow.

On the derivative front, related ETFs and small-cap stocks also recorded gains. MUU.US rose 1.81% in overnight trading, while MUD.US fell 0.88%, SNXX.US gained 0.79%, and SNDQ.US declined 0.88%. Overall, after daytime volatility, sentiment in the memory chip sector converged positively in the overnight session, with investor expectations for a storage cycle recovery continuing to ferment.

### 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

- [$1000 Invested In Western Digital 20 Years Ago Would Be Worth This Much Today](https://longbridge.com/en/news/296395604.md)
- [Seagate Technology Holdings (STX) After Fund Buying Puts Its AI Valuation Narrative In Focus](https://longbridge.com/en/news/296794635.md)
- [Micron Stock Is Surging Toward $1,000 Again. Can MU Keep Climbing?](https://longbridge.com/en/news/296107115.md)
- [Micron Sees 'No End' to AI Memory Supply Crunch: CEO Sanjay Mehrotra Says 'Nothing Ever Goes in a Straight Line'](https://longbridge.com/en/news/296743524.md)
- [Micron Technology, Inc.  Plans USD10 billion AI Memory Chip R&D Center](https://longbridge.com/en/news/296551150.md)

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