美股期货持续下挫，纳指期货跌超2%。

Core Viewpoint - U.S. stock futures continue to decline, with Nasdaq futures dropping over 2% [1] Group 1 - The decline in Nasdaq futures indicates a bearish sentiment in the market [1] - The overall trend suggests increasing volatility and uncertainty among investors [1] - This downturn may impact technology stocks significantly, given Nasdaq's heavy weighting in this sector [1]