Warren Buffett sold Apple Inc. shares in the last quarter, despite the company’s strong performance. Apple’s stock this year has been lackluster, up just 14%. iPhone sales were strong, but China revenue dropped, putting Apple behind in the AI race among tech giants.

Apple missed the mark on announcing advanced AI features with the iPhone 17 launch. No AI product is expected until next year, sparking worries about Google’s dominance in the sector. The uncertainty surrounding AI’s success as a consumer product adds to the concerns.

With speculation about Tim Cook’s successor, Apple shareholders have more to fret about. Cook’s tenure saw the stock rise 132%, outperforming the market. Retirement planning is also a hot topic, as many Americans realize they can retire earlier than expected after answering three key questions.

Read more at Yahoo Finance: Investors Are Sick of Apple