Bank of America's chief investment strategist Michael Hartnett has identified what he calls "the most obvious catalyst" that could halt the current AI-awe rotation in markets. His comment suggests a potential turning point for investors chasing artificial intelligence stocks.

The AI-awe rotation refers to the market's recent focus on artificial intelligence-related companies, with investors rotating into these stocks based on excitement over the technology. Hartnett's warning indicates this trend may face an unexpected obstacle that could trigger a shift in market sentiment.

Market observers are paying close attention to Hartnett's analysis, given his track record of identifying market shifts. His perspective carries weight as investors evaluate whether to maintain positions in high-flying AI stocks or consider rebalancing portfolios amid potential volatility.

The catalyst Hartnett referenced remains unspecified in the public comments, leaving market participants to speculate on what might disrupt the AI sector's momentum. This uncertainty could prompt investors to reassess risk exposure to technology stocks.