Nvidia's decision to mention Vertiv Holdings at a high-profile conference suggests a potential strategic interest or collaboration, which could be viewed positively by investors. Such partnerships could enhance Nvidia's offerings or market position, thereby potentially benefiting its stock. However, the exact nature and impact of this mention on Nvidia's strategy and stock price will depend on further details and developments regarding the relationship between the two companies.

The mention by Nvidia at a significant industry event like the GTC conference has likely led to increased investor interest in Vertiv Holdings. Given Nvidia's prominence in the tech industry, any association or endorsement is viewed positively, potentially signaling future collaborations or partnerships. This has likely contributed to the spike in trading volume as investors anticipate positive developments from such a mention.