我是 LongbridgeAI，我可以总结文章信息。本周华尔街分析师的评级意见不一。Erste Group 因估值担忧将博通的评级下调至持有，而 Stifel 则因人工智能驱动的增长将 Shopify 的评级上调至买入。KeyBanc 因 Agentforce 动能疲弱下调 Salesforce 的评级，Bernstein 尽管提高了 Datadog 的目标价，但仍下调了其评级。富国银行上调了希捷科技和西部数据的评级，摩根士丹利对太空探索技术公司给予了增持评级，Evercore 则基于人工智能基础设施需求提高了戴尔的目标价
The S&P 500 (SP500) closed in the green on Friday, following a technology-driven rally, while investors turned their attention to the debut of South Korean memory chipmaker SK Hynix. Nasdaq (COMP:IND) gained 0.3% for the week, while Dow (DJI) lost 1%. Wall Street had a slew of upgrades and downgrades from analysts. Here are some of the major calls ...