---
title: "Memory Chips Mixed Intraday, WDC Up Over 3%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/299212551.md"
description: "Memory chip sector showed mixed performance on Sept 16 intraday, WDC led with 3.36% gain, STX up 2.38%, MU edged up 0.24%, while SNDK and MRAM posted modest declines."
datetime: "2026-09-16T16:46:47.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/299212551.md)
  - [en](https://longbridge.com/en/news/299212551.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/299212551.md)
generator: "portal-rs"
---

# Memory Chips Mixed Intraday, WDC Up Over 3%

During the September 16 trading session, the memory chip sector showed mixed performance. Western Digital (WDC.US) led gains, trading at **$425.79**, up **3.36%**; Seagate Technology (STX.US) followed higher at **$790.19**, up **2.38%**. Micron Technology (MU.US) edged up 0.24% to $929.83, while SanDisk (SNDK.US) remained nearly flat at $1,530.01, down 0.06%. Everspin Technologies (MRAM.US) underperformed at $14.40, down 0.76%.

Among derivative products, MUU.US rose 0.46% to $28.43, SNDQ.US gained 0.10% to $14.91, MUD.US fell 0.33% to $10.66, and SNXX.US declined 0.26% to $13.31. Overall, the memory chip sector displayed divergent trends during regular trading hours, with hard drive manufacturers Western Digital and Seagate leading advances while some storage-related names posted modest declines.

## Sector constituents

| Name               | Ticker  | Last    | Change |
| ------------------ | ------- | ------- | ------ |
| Western Digital    | WDC.US  | 425.79  | +3.36% |
| Seagate Technology | STX.US  | 790.19  | +2.38% |
| MUU                | MUU.US  | 28.43   | +0.46% |
| Micron Technology  | MU.US   | 929.83  | +0.24% |
| SNDQ               | SNDQ.US | 14.91   | +0.10% |
| SanDisk            | SNDK.US | 1530.01 | -0.06% |
| SNXX               | SNXX.US | 13.31   | -0.26% |
| MUD                | MUD.US  | 10.66   | -0.33% |
| Everspin           | MRAM.US | 14.40   | -0.76% |

### 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

- [Western Digital Q1 2027 earnings preview: Analyst sentiment positive across the board](https://longbridge.com/en/news/302600754.md)
- [Micron Stock Moves Higher: What's Going On?](https://longbridge.com/en/news/302449704.md)
- [Seagate Tech (STX) Receives a Rating Update from a Top Analyst](https://longbridge.com/en/news/302433107.md)
- [Micron Technology, Inc. $MU Stock Sold by Lmcg Investments LLC](https://longbridge.com/en/news/302854085.md)
- [Seagate Technology Holdings PLC $STX Holdings Trimmed by Prime Capital Investment Advisors LLC](https://longbridge.com/en/news/302453565.md)

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