---
title: "Weekly Recap | Tema Memory ETF -1.58%, memory chips under pressure"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/298784550.md"
description: "Tema Memory ETF (DISK.US) fell 1.58% this week to close at $38.61, underperforming the S&P 500 by about 0.78 percentage points. The fund traded between $38.35 and $40.90, an amplitude of 6.3%. The week started firm before pulling back: Tuesday opened at $40.48 and touched $40.90 intraday, then gave back ground each day. Thursday broke below $39, and Friday hovered between $38.35 and $39.41. The close remains above both the 20-day moving average at $37.70 and the 60-day at $37.33."
datetime: "2026-09-12T04:21:34.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/298784550.md)
  - [en](https://longbridge.com/en/news/298784550.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/298784550.md)
generator: "portal-rs"
---

# Weekly Recap | Tema Memory ETF -1.58%, memory chips under pressure

## The Week

Tema Memory ETF (DISK.US) fell 1.58% this week to close at $38.61, underperforming the S&P 500 by about 0.78 percentage points. The fund traded between $38.35 and $40.90, an amplitude of 6.3%. The week started firm before pulling back: Tuesday opened at $40.48 and touched $40.90 intraday, then gave back ground each day. Thursday broke below $39, and Friday hovered between $38.35 and $39.41. The close remains above both the 20-day moving average at $37.70 and the 60-day at $37.33.

## Sector News

Memory-chip names came under pressure this week. Micron (MU), SanDisk (SNDK), Western Digital (WDC) and Seagate (STX) broadly weakened across several sessions, with some single-day moves near or beyond 4%. CXMT posted an 82% second-quarter EBIT margin, topping Micron, SanDisk and SK hynix, and refocusing attention on competitive dynamics in memory. Micron offered Taiwan workers rewards worth up to 68 months of pay, though strike risk remains. SanDisk amended its loan agreement, refinancing a $1.5 billion revolving credit facility led by JPMorgan Chase. Seagate CEO William D. Mosley sold $2.45 million in shares, and other insiders sold over $3.6 million during the week.

## The Week Ahead

US macro data will set the tone for tech. The New York Fed manufacturing index lands on Tuesday 15 Sept, followed by retail sales, import prices and the NAHB housing market index on Wednesday 16 Sept. Retail sales had weakened previously, so the next read may shift sentiment on consumer resilience. Within memory, options flow in Micron and SanDisk already showed outsized moves this week, with some put options jumping 300% to 400% in a single day, suggesting volatility could persist into next week.

## In Short

DISK.US pulled back modestly but held above its 20-day and 60-day moving averages. The 52-week range high of $50.46 was set in late June, leaving the current price about 23% below that level. Competitive pressure and insider selling acted as headwinds, while Micron’s compensation package and AI-memory demand expectations offered some support. The latest session’s flow showed retail as the main net seller on the day. The key question ahead is whether US retail data strengthens or weakens the demand outlook for memory chips, and whether the divergence within the sector widens further.

*This article is generated by LongbridgeAI from market data, for information only and not investment advice.*

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- [DISK.US](https://longbridge.com/en/quote/DISK.US.md)

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