US stock index futures close higher Wednesday, Nasdaq 100 up 1.17%

Broad-based gains with the tech-heavy Nasdaq 100 leading and small caps lagging point to a risk-on tone concentrated in large-cap growth rather than a uniform rally. That divergence matters for crypto and RWA markets, which often track tech-led risk appetite more closely than the Dow or Russell. The open question is whether this leadership holds through the rest of the week or narrows further, since breadth—not the headline index move—is the more telling signal.