---
title: "Overnight, momentum stocks in the US stock market collapsed! The severity exceeded that of the \"DeepSeek Impact\""
description: "Whether it's the plunge in software stocks or the crash in semiconductor stocks, they share a common point—overnight, momentum stocks in the U.S. market experienced the fourth-largest single-day sell-"
type: "news"
locale: "en"
url: "https://longbridge.com/en/news/274902120.md"
published_at: "2026-02-05T02:30:22.000Z"
---

# Overnight, momentum stocks in the US stock market collapsed! The severity exceeded that of the "DeepSeek Impact"

> Whether it's the plunge in software stocks or the crash in semiconductor stocks, they share a common point—overnight, momentum stocks in the U.S. market experienced the fourth-largest single-day sell-off in the past decade. Investors are selling off growth and momentum stocks, instead flocking to value stocks and traditional defensive stocks. Indeed, the neglected chemical sector surprisingly recorded the fourth-largest single-day gain in the past ten years! According to Morgan Stanley's QDS team, today's momentum decline is the most severe in three years, even surpassing the drop of DeepSeek in January last year

Whether it's the plunge in software stocks or the collapse of semiconductor stocks, they share a common point—overnight, momentum stocks in the U.S. experienced the fourth largest single-day sell-off in the past decade. Investors are selling off growth and momentum stocks, turning instead to value stocks and traditional defensive stocks. Indeed, the neglected chemical sector surprisingly recorded the fourth largest single-day gain in the past ten years!

According to the Morgan Stanley QDS team, today's momentum decline is the most severe in three years, even surpassing the drop of DeepSeek in January last year.

### Related Stocks

- [SOXX.US - iShares Semiconductor ETF](https://longbridge.com/en/quote/SOXX.US.md)
- [SOXS.US - Direxion Semicon Bear 3X](https://longbridge.com/en/quote/SOXS.US.md)
- [SMH.US - VanEck Semiconductor ETF](https://longbridge.com/en/quote/SMH.US.md)
- [XSD.US - SPDR S&P Semicon](https://longbridge.com/en/quote/XSD.US.md)

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