Dow Gains 2.38%, S&P 500 Rises 1.71%, Nasdaq Adds 2.09%

The dispersion inside the mega-cap group is the notable detail here: broad index strength came alongside a clear split between the largest software and platform names and Nvidia, which failed to participate. That divergence matters for anyone tracking how concentrated index performance remains, since a rally carried by a handful of names can look different beneath the surface than the headline percentages suggest. Whether Nvidia's underperformance is a one-session anomaly or the start of rotation within the leadership group is the open question worth watching.