7月30日电，美国二季度GDP数据公布后，美国股指期货变动不大。标准普尔500指数期货上涨0.08%，纳斯达克指数期货上涨0.18%，道琼斯指数期货上涨0.02%。

Core Viewpoint - The U.S. stock index futures showed little change following the release of the second quarter GDP data, indicating a stable market reaction to economic indicators [1] Group 1: Stock Index Futures - S&P 500 index futures increased by 0.08% [1] - Nasdaq index futures rose by 0.18% [1] - Dow Jones index futures saw a slight increase of 0.02% [1]