A market rally powered by a small group of technology companies has raised concerns about concentration risk and the potential damage from a sharp reversal.
• Major indexes have become increasingly dependent on a handful of AI-linked companies, leaving portfolios vulnerable to company-specific setbacks or a broader pullback in the sector.
• Investors are exploring ways to diversify beyond the largest technology stocks, including equal-weighted funds, international markets, smaller companies and industries that have yet to benefit fully from the AI boom.
• Some money managers are favoring defensive assets, such as high-quality bonds and cash, to reduce volatility while preserving flexibility if valuations decline.
• The concern is not necessarily that AI’s long-term prospects have weakened. Rather, expectations and share prices may have risen faster than corporate earnings can justify.
• Analysts say diversification remains the clearest response, though completely avoiding AI exposure may prove difficult because the technology is spreading across nearly every part of the economy.