---
title: "Memory Chips Surge in Overnight Session: Micron Up Over 3%, SanDisk Up Nearly 6%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/294438813.md"
description: "The memory chip sector rallied collectively during the overnight session. Micron Technology rose over 3% to $906.55, while SanDisk climbed nearly 6% to $1,361.05. Western Digital and Seagate Technology also advanced, signaling a notable recovery in sector sentiment."
datetime: "2026-07-31T01:46:14.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/294438813.md)
  - [en](https://longbridge.com/en/news/294438813.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/294438813.md)
generator: "portal-rs"
---

# Memory Chips Surge in Overnight Session: Micron Up Over 3%, SanDisk Up Nearly 6%

The memory chip sector rallied collectively during the overnight session, with mainstream names posting significant gains. As of press time, Micron Technology (MU.US) traded at $906.55 in overnight trading, up 3.65% from the previous close of $874.66. SanDisk (SNDK.US) showed even stronger momentum, trading at $1,361.05, a gain of 6.34%.

Other mainstream stocks also advanced in tandem. Western Digital (WDC.US) traded at $558.03 in the overnight session, up 4.69%, while Seagate Technology (STX.US) rose 2.74% to $875.02. Everspin Technologies (MRAM.US) gained 3.60% to $14.98. The sector demonstrated strong rebound momentum throughout the overnight hours.

Among derivative products, ProShares Ultra Micron (MUU.US) traded at $28.83, up 6.90%, while ProShares Short Micron (MUD.US) fell 3.78% to $11.23. GraniteShares 2x Long Western Digital (SNXX.US) surged 11.92% to $11.73, and GraniteShares 2x Short SanDisk (SNDQ.US) dropped 12.24% to $25.39. The amplified volatility in leveraged and inverse products reflects intensified directional betting on the sector.

### 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)
- [Seagate CFO Gianluca Romano disposes of 9,075 Seagate shares worth $7.71 million](https://longbridge.com/en/news/296829690.md)
- [John Christopher Morris Sells 523 Shares of Seagate Technology (NASDAQ:STX) Stock](https://longbridge.com/en/news/296879445.md)
- [Western Digital Chief Legal Officer Cynthia Tregillis reports disposal of common shares worth $637,440.20](https://longbridge.com/en/news/296835681.md)

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