【美股高开，科技股表现强劲】美股开盘，道指涨0.51%，标普500指数涨1.02%，纳指涨2%，受贸易局势降温和科技股财报超预期推动。微软(MSFT.O)涨10%，Meta Platforms(META.O)涨7.25%，其Q1业绩双双超预期。纳斯达克中国金龙指数涨0.43%。

Core Viewpoint - US stock market opened higher with strong performance in technology stocks driven by easing trade tensions and better-than-expected earnings reports from major tech companies [1] Group 1: Market Performance - Dow Jones increased by 0.51% [1] - S&P 500 index rose by 1.02% [1] - Nasdaq composite surged by 2% [1] Group 2: Company Performance - Microsoft (MSFT.O) shares rose by 10% following its Q1 earnings report [1] - Meta Platforms (META.O) shares increased by 7.25% after exceeding Q1 earnings expectations [1] Group 3: Other Indices - Nasdaq China Golden Dragon Index saw an increase of 0.43% [1]