---
title: "标普 500 指数中的半导体敞口已达到 18%，这超过了科技泡沫时期的峰值两倍以上"
type: "News"
locale: "zh-CN"
url: "https://longbridge.com/zh-CN/news/286842303.md"
description: "Cameron Dawson，NewEdge Wealth 的首席投资官，强调标普 500 指数中的半导体曝光率已飙升至 18%，是科技泡沫峰值 2% 的两倍多。这一变化是由 NVIDIA、Micron 和台积电等主要参与者推动的，表明与人工智能相关的投资集中度显著提高，这使得传统的多元化策略变得复杂。投资者可能会发现，由于半导体在各个指数的配置决策中占主导地位，进行有效的多元化变得具有挑战性"
datetime: "2026-05-19T02:13:18.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286842303.md)
  - [en](https://longbridge.com/en/news/286842303.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286842303.md)
---

# 标普 500 指数中的半导体敞口已达到 18%，这超过了科技泡沫时期的峰值两倍以上

Cameron Dawson, chief investment officer at NewEdge Wealth, dropped a statistic on Thoughtful Money with Adam Taggart that should reframe how investors think about diversification in 2026. "10 years ago, the semiconductor index or weight in the S&P 500 was 2%. Today it's 18%," she said, adding that "that 18% is more than double what it was at the p...

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