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Beyond tech giants: Three investment themes reshaping US markets

The era of putting all investment eggs in the technology basket appears to be giving way to a more nuanced, diversified approach to capturing long-term growth.

July 05, 2025 / 07:58 IST
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The dominance of technology stocks in recent years has been nothing short of remarkable. From the cloud migration to artificial intelligence (AI) revolution, a select group of US mega-cap stocks has captured investor imagination and capital allocation.

However, January 2025 delivered a stark reminder of the risks inherent in such concentrated positioning when DeepSeek, a Chinese AI company, triggered significant market volatility that sent the S&P 500 down 1.46 percent in a single session.

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This event highlighted a critical market dynamic that has been building for months: the extraordinary concentration risk in US equity markets.

By December 31, 2024, the top five securities in the S&P 500 commanded nearly 29 percent of the index's total weight, while US equities comprised 67 percent of global equity markets—up from 62.57 percent in 2023. Such concentration levels are historically unprecedented and suggest that diversification has become not just prudent, but essential.