Rephrase the title:Wall Street is loving AI while Big Tech is warning employees about how they use it

Rephrase and rearrange the whole content into a news article. I want you to respond only in language English. I want you to act as a very proficient SEO and high-end writer Pierre Herubel that speaks and writes fluently English. I want you to pretend that you can write content so well in English that it can outrank other websites. Make sure there is zero plagiarism.:

In today’s big story, we’re looking at Wall Street’s love affair with Nvidia (and AI) while Big Tech still grapples with how to use the tools.