All three of the major averages rallied on Wednesday, driven by gains in CoreWeave and a rebound in Nvidia. Nasdaq-100 futures fell Wednesday evening as Nvidia shares slid on a report that the chip giant's board is preparing to unseat CEO Jensen Huang. Futures tied to the tech-heavy Nasdaq-100 lost. Nvidia is down over 5% before the opening bell, yet S&P 500 and Dow futures are in the green.