---
title: "Storage Chip Stocks Mixed in Trading, Seagate Down 4%, Western Digital Down 4%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/299089928.md"
description: "Storage chip stocks traded mixed Tuesday. Seagate (STX.US) fell 4%, Western Digital (WDC.US) dropped 4%, while Micron (MU.US) edged up 0.20%. Leveraged ETF MUU gained 0.28%, inverse ETF SNDQ rose 2.31%."
datetime: "2026-09-15T19:47:51.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/299089928.md)
  - [en](https://longbridge.com/en/news/299089928.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/299089928.md)
generator: "portal-rs"
---

# Storage Chip Stocks Mixed in Trading, Seagate Down 4%, Western Digital Down 4%

Storage chip stocks showed mixed performance during regular trading hours Tuesday (September 15). Seagate Technology (STX.US) led declines, falling **4.44%** to **$769.75**, with an intraday low of $758.35. Western Digital (WDC.US) dropped **3.53%** to **$411.87**, touching a session low of $407.12. Micron Technology (MU.US) bucked the trend with a modest **0.20%** gain to **$925.93**, while SanDisk (SNDK.US) slipped **1.10%** to **$1,534.94**.

MRAM (MRAM.US) declined **0.81%** to **$14.61**. Sector-related ETFs showed divergent moves, with 2x leveraged ETF (MUU.US) up **0.28%** at **$28.22** and 2x inverse ETF (SNDQ.US) gaining **2.31%** to **$14.82**, reflecting mixed sentiment on near-term storage chip outlook.

## Sector constituents

| Name                           | Ticker  | Last    | Change |
| ------------------------------ | ------- | ------- | ------ |
| GraniteShares 2x Short SanDisk | SNDQ.US | 14.82   | +2.31% |
| ProShares Ultra Micron         | MUU.US  | 28.22   | +0.28% |
| Micron Technology              | MU.US   | 925.93  | +0.20% |
| ProShares UltraShort Micron    | MUD.US  | 10.71   | -0.19% |
| Everspin Technologies          | MRAM.US | 14.61   | -0.81% |
| SanDisk                        | SNDK.US | 1534.94 | -1.10% |
| GraniteShares 2x Long SanDisk  | SNXX.US | 13.38   | -2.58% |
| Western Digital                | WDC.US  | 411.87  | -3.53% |
| Seagate Technology             | STX.US  | 769.75  | -4.44% |

### 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

- [Micron Technology Is Ramping Up Production of High-Bandwidth Memory. Here's Why That Could Send the Stock to New Heights This Year](https://longbridge.com/en/news/298934681.md)
- ['Not the Same,' Says Investor About Micron Stock Ahead of Earnings](https://longbridge.com/en/news/299197500.md)
- [Insider Transaction: Gianluca Romano Sells $38.60M Worth Of Seagate Technology Hldgs Shares](https://longbridge.com/en/news/299339822.md)
- [William D Mosley Implements A Sell Strategy: Offloads $1.46M In Seagate Technology Hldgs Stock](https://longbridge.com/en/news/299203744.md)
- [‘Before It Wakes Up,’ Says Top Investor About Micron Stock](https://longbridge.com/en/news/299325951.md)

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