Wall Street set for cautious open as AI cash-flow debate weighs on stocks

S&P 500 and Nasdaq modestly lower; Dow about 0.6% down. Utilities lead gainers, healthcare lags. Dollar firmer, gold up about 1%, US crude down over 2%, and US 10-year yield around 5.28%. Apollo Global Chief Economist Torsten Slok highlights a potential gap between AI cash-flow projections.