纳指转跌，AppLovin跌约5%，AMD等则仍然涨超2%

Group 1 - The Nasdaq Composite Index initially rose about 0.8% but then turned to decline over 0.1% [1] - The Nasdaq 100 Index also turned negative, with notable declines in several component stocks [1] - AppLovin dropped over 4.9%, Grail fell 2.8%, and CTSH decreased by 2.6% [1] Group 2 - Other companies such as Warner Bros. Discovery, AMD, and Mondelez International saw gains of over 2% [1] - Stocks like Fortinet ADR, Palantir, TEAM, Broadcom, and Coherent experienced declines of up to 1.4% [1]