Nvidia’s streak of blockbuster earnings has turned investor expectations into a high-stakes game— anything short of perfection risks disappointment. As the company gears up to report fiscal Q1 results, markets remain fixated on the fallout from China’s H20 export ban, which could shave $15 billion off annual revenue and includes a $5.5 billion inventory write-down. Q1 strength will likely reflect a surge in stockpiled orders from China, but Q2 poses the choppiest outlook in years as dem...