S&P 500 falls 0.5% to session low; Dow down 0.7%, Nasdaq down 0.4%

The synchronized slide across major indices signals a broad risk-off tone rather than sector-specific pressure, which often points to macro-driven selling such as rate or geopolitical concerns. The fact that the S&P is making session lows while the Dow lags suggests defensives are not offering refuge, a sign of conviction behind the move. What matters now is whether dip-buying emerges near closing levels or if momentum accelerates into the bell, as that will set the tone for the next session.