According to Savita Subramanian, head of U.S. equity strategy at Bank of America, the current rally in tech stocks driven by excessive spending on artificial intelligence (AI) could soon come to an end. Subramanian cited the example of Nvidia, whose stock has surged over 180% this year due to the AI hype. However, she warned that the AI frenzy might not last, and investors should be cautious about overpaying for tech stocks. Subramanian emphasized the importance of focusing on companies with strong fundamentals and reasonable valuations. She also noted that while AI is a promising technology, it is still in its early stages, and the long-term impact on productivity and economic growth remains uncertain. Overall, the article cautions against excessive speculation in AI-related stocks and advises investors to maintain a balanced and diversified portfolio.