Nvidia (NVDA 4.08%) shares surged 4% to close at $170.70 on Tuesday, outpacing broader market indices as investors responded positively to news about graphics processing unit (GPU) exports to China resuming. The chipmaker received assurances from the Trump administration that it can once again export its H20 GPU to the Chinese market.While Nvidia rallied, major indices showed mixed performance. The S&P 500 fell slightly, dropping 0.4%, while the Nasdaq Composite remained relatively flat with its 0.18% gain, ...