
Shares in US technology giants have risen so rapidly this year, driven by an artificial intelligence frenzy, that their index weighting has skewed Wall Street’s overall performance — and prompted investors to run remarkably similar portfolios.
在人工智慧熱潮的推動下,美國科技巨擘的股價今年以來漲勢迅猛,其指數權重已經偏離了華爾街的整體表現,並促使投資者運作極爲相似的投資組合。
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