标普500指数初步收涨约0.7%，科技板块涨1.2%，金融板块涨0.9%，电信板块涨0.5%。纳斯达克100指数初步收涨0.9%，成分股Datadog涨15.1%，铿腾电子涨5.1%，新思科技涨4.9%。

Group 1 - The S&P 500 index initially rose by approximately 0.7% [1] - The technology sector increased by 1.2%, while the financial sector rose by 0.9% and the telecommunications sector gained 0.5% [1] - The Nasdaq 100 index initially increased by 0.9% [1] Group 2 - Datadog's stock surged by 15.1%, while Kaltura and Synopsys saw increases of 5.1% and 4.9% respectively [1]