分组1: United Health - United Health has seen a significant decline of 35% this year, making it the worst performer in the Dow [1] - Regulatory headwinds and decreasing margins are challenges that the company must navigate, especially with a new CEO in place [1][2] - The company is expected to stabilize over time, similar to the turnaround seen with CVS [2] 分组2: Salesforce - Salesforce is down 20% for the year, while the S&P has increased by 17%, but it has recently rebounded by 15% this month [3] - There is optimism that AI will enhance Salesforce's business rather than harm it, with expectations for subscription growth [4] - The company is trading at a low valuation of 16 times cash, which has not been seen in many years, indicating potential for recovery [4] 分组3: Amazon - Amazon's stock is up around 6% this year but is underperforming compared to other major tech companies [5] - The company is currently trading at 12.5 times cash flow, below its historical average of 15, suggesting potential for valuation improvement [6] - Amazon benefits from various tailwinds, including its performance in the K-shaped retail economy and strong growth in AWS [7] - Robotics and advertising are additional growth areas that could enhance margins and efficiency for Amazon [8] - The custom silicon projects within AWS are expected to provide competitive advantages in AI efficiency [9][10] - Amazon's diverse capabilities and strategic investments position it well for future growth, making it a favorable investment opportunity [11][12]