纳斯达克100指数期货跌幅扩大，现跌1.0%，最新报19848.93点。

Group 1 - Nasdaq 100 index futures have expanded their decline, currently down 1.0% at 19848.93 points [1] - S&P 500 index futures are down 0.78% [1] - Dow Jones index futures have decreased by 0.65% [1]