US equity futures are weaker, dragged lower by Tech after a disappointing outlook from Broadcom triggered doubts that the blistering rally in technology shares had gone too far, a move exacerbated by euphoric positioning. As of 8:00am ET, S&P futures dropped 0.4%, while Nasdaq futures slumped 1.2%. Broadcom, which added around $150 billion in market value just this week, slumped 13% in US premarket trading after its forecast for artificial-intelligence semiconductor revenue in the current quarter fell short of expectations.