Narrow Market Leadership and Higher Expectations — Are We in a Bubble?

Stock market gains have become increasingly concentrated in a small group of companies, raising questions about how sustainable today’s market leadership really is. At the same time, strong earnings, innovation, and easing financial conditions continue to support investor confidence, creating a tension between optimism and caution. In our latest Quarterly Investment Perspective, we explore whether current market dynamics reflect excess—or a more nuanced phase of the market cycle—and what it means for long-term investors.

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