Nvidia's stock price has climbed above $190 in pre-market trading, fueled by anticipation of significant tech earnings, a potential US-China trade agreement, and the Federal Reserve's upcoming interest rate decision. The stock has increased 120% from its year-low, with future performance closely linked to the earnings of major clients such as Amazon, Microsoft, and Meta, which contribute nearly 50% of Nvidia's revenue. A potential trade deal between the US and China could further benefit Nvidia, as previous restrictions by Chinese officials have limited chip purchases. Additionally, the Federal Reserve is expected to announce a 0.25% interest rate cut on Wednesday, which could provide additional momentum for Nvidia's stock.