---
title: "人工智能芯片的上漲推動了市場極端集中風險的加劇"
type: "News"
locale: "zh-HK"
url: "https://longbridge.com/zh-HK/news/286670517.md"
description: "五家科技巨頭目前佔據了近期標準普爾 500 指數漲幅的約一半，半導體在該指數中佔據創紀錄的 15%。儘管應用材料實現了創紀錄的增長，但像奇景光電和帕沃英蒂格盛這樣的公司卻面臨銷售下滑，突顯出人工智能需求利益的不均衡。分析師警告泡沫風險，指出與 1990 年代互聯網泡沫時期的相似之處，認為高估值和市場領導地位的集中可能加劇經濟下行"
datetime: "2026-05-17T11:01:18.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286670517.md)
  - [en](https://longbridge.com/en/news/286670517.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286670517.md)
---

# 人工智能芯片的上漲推動了市場極端集中風險的加劇

Concentration at extremes: Five tech giants now account for about half of recent S&P 500 gains, with semiconductors at a record 15% of the index’s weight. Winners and laggards: Applied Materials posts record growth, but others like Himax and Power Integrations see sales declines, exposing uneven benefits from AI demand. Bubble risk signals: Analysts draw parallels to the 1990s dot-com era, warning high valuations and narrow market leadership could magnify a downturn.

### 相關股票

- [AMAT.US](https://longbridge.com/zh-HK/quote/AMAT.US.md)
- [POWI.US](https://longbridge.com/zh-HK/quote/POWI.US.md)
- [HIMX.US](https://longbridge.com/zh-HK/quote/HIMX.US.md)
- [FTXL.US](https://longbridge.com/zh-HK/quote/FTXL.US.md)
- [SOXX.US](https://longbridge.com/zh-HK/quote/SOXX.US.md)
- [SMH.US](https://longbridge.com/zh-HK/quote/SMH.US.md)
- [XSD.US](https://longbridge.com/zh-HK/quote/XSD.US.md)
- [PSI.US](https://longbridge.com/zh-HK/quote/PSI.US.md)
- [SOXL.US](https://longbridge.com/zh-HK/quote/SOXL.US.md)
- [.SPX.US](https://longbridge.com/zh-HK/quote/.SPX.US.md)
- [SPY.US](https://longbridge.com/zh-HK/quote/SPY.US.md)
- [IVV.US](https://longbridge.com/zh-HK/quote/IVV.US.md)
- [VOO.US](https://longbridge.com/zh-HK/quote/VOO.US.md)

## 相關資訊與研究

- [應用材料營收展望超出分析師預期 人工智能需求帶來提振](https://longbridge.com/zh-HK/news/286473046.md)
- [AI 浪潮勢不可擋！應用材料財報與展望遠超預期 宣告半導體設備 “超級週期” 深入演進](https://longbridge.com/zh-HK/news/286482080.md)
- [庫克公司押注亞洲人工智能的繁榮，推出了一個規模達 4 億美元的對沖基金](https://longbridge.com/zh-HK/news/286858906.md)
- [應用材料預計多年的人工智能熱潮將推動創紀錄的收入和增長，持續至 2028 年](https://longbridge.com/zh-HK/news/286592782.md)
- [應用材料的最後時刻第二季度收益警報：期權交易者預計 AMAT 股票將出現 7.6% 的波動](https://longbridge.com/zh-HK/news/286445568.md)