Group 1 - Major U.S. stock indices saw increased gains, with the S&P 500 index rising by 1% [1] - The Nasdaq 100 index experienced a 1.5% increase [1]

Core Points - The S&P 500 and Nasdaq 100 indices have fallen to their lowest levels in over two weeks [1] - The Dow Jones index has dropped to its lowest level in more than a month [1]

Core Points - The Nasdaq 100 index turned negative, erasing a previously gained increase of 1% [1]

Group 1 - The Nasdaq 100 index rose after Powell's speech [1]

智通财经7月31日电，鲍威尔讲话之际标普500指数和纳斯达克100指数攀升至盘中高点。 ...

标普500指数和纳斯达克100指数升至盘中高点。 ...

标普500指数抹去涨幅，纳斯达克100指数涨幅回落至0.2%。 ...

Group 1 - The S&P 500 index has turned negative, indicating a decline in the broader market sentiment [1] - The Nasdaq 100 index has shown a slight increase of 0.2%, suggesting resilience in technology stocks [1]

Group 1 - The S&P 500 index initially rose by approximately 0.1%, with the consumer discretionary sector declining by 1.1%, while telecommunications, technology, and energy sectors each gained at least 0.6% [1] - The Nasdaq 100 index initially increased by about 0.3%, with notable declines in Tesla (down 8%), ON Semiconductor (down 7.1%), and Honeywell (down 5.9%), while Broadcom, Micron Technology, Amazon, and AMD each rose by at least 1.8%, and T-Mobile increased by 5.7% [1] - The Dow Jones Industrial Average initially fell by over 200 points, with significant declines in IBM (down 7.8%) and UnitedHealth (down 4.6%), followed closely by Honeywell, while Microsoft, Walmart, Chevron, NVIDIA, and Amazon each gained by at least 1% [1]

Group 1 - The S&P 500 index increased by 0.3%, reaching a new daily high [1] - The Nasdaq 100 index rose by 0.46%, also hitting a new daily high [1]