Goldman Sachs: Nvidia is the most important stock in the world. The trading department of Goldman Sachs refers to Nvidia as the "most important stock on Earth.". Given Nvidia's significant weight in various indices and its large long position in the stock, its options position suggests that the stock price will fluctuate by approximately 11% in two directions. This may shake the financial markets, as Nvidia contributed one-third of the increase in the Nasdaq 100 index this year.