关税突发！A股高开，A50狂拉！

Group 1 - The U.S. federal court has blocked President Trump's tariff policy announced on April 2, ruling that he overstepped his authority by imposing comprehensive tariffs on countries that export more to the U.S. than they import [1][7] - Following the court's ruling, the Trump administration has filed an appeal, with White House spokesperson Kush DeSai condemning the decision and asserting that non-elected judges should not dictate responses to national emergencies [7] - The court's ruling allows the administration up to 10 days to halt the imposition of tariffs, although the specific timing and method for stopping the tariff policy remain unclear [7] Group 2 - On April 2, the White House announced a national emergency to enhance U.S. competitiveness, protect sovereignty, and strengthen national and economic security [8] - As a result of the court ruling, U.S. stock index futures have seen significant gains, with Nasdaq futures up 1.8%, S&P 500 futures up 1.44%, and Dow futures up 1.09% [3] - In the A-share market, indices opened slightly higher, with the Shanghai Composite Index up 0.01%, the Shenzhen Component Index up 0.03%, and the ChiNext Index up 0.15%, particularly in sectors like EDA, autonomous vehicles, and biomass energy [4]