Nvidia CEO Jensen Huang's recent comments on CoreWeave's improving performance and decreasing cost of capital sparked a rally in the Nasdaq. Huang emphasized that Nvidia does not need to provide financial support to CoreWeave, which was previously rescued by the company. The positive sentiment led to a significant uptick in the Nasdaq index. However, the market faced a disruption later in the trading session, affecting data transmission across multiple exchanges. Nasdaq warned of intermittent data gaps, which caused some volatility in market activity. Analysts suggest the disruption may have impacted investor confidence, leading to a market reversal.