S&P 500 opens up 16.02 points, or 0.21%, at 7,639.70

A modestly higher open across all three major indexes points to broad, if shallow, risk appetite rather than a single sector driving sentiment. The Nasdaq's slightly larger percentage gain suggests growth names are leading at the margin, a tilt worth noting for crypto and other risk-sensitive assets that often track tech sentiment. With moves this small, the open says little about conviction; whether the gains hold through the session, or fade as they have on other soft opens, is the open question.