CoreWeave will start trading on the NDX today under the CRWV ticker. Nvidia (NVDA) has a 6% stake in the company, but as Jenny Horne points out, it faces headwinds from another Mag 7 giant: Microsoft (MSFT). She also weighs in on how the IPO can serve as a high-beta A.I. trade. In retail, Jenny talks about Lululemon's (LULU) post-earnings sell-off and why guidance is the main culprit.