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Artificial intelligence (AI) has emerged as one of the most compelling investing themes of 2023. Optimism about AI helped propel many U.S. tech stocks higher, with Nvidia (NVDA) joining the $1 trillion market cap club this year.
The tech rally was broad-based, and the Nasdaq Composite ($NASX) had its best first-half performance in four decades. The index rose almost 32% over the period, and in absolute terms, the constituents added over $4 trillion in market cap.