On November 18, data from the Chicago Options Exchange showed that traders were betting that Nvidia's stock would pump or fall by about 12% after the announcement of its financial report, generating a market capitalization fluctuation of about 407 billion dollars. Vishal Vivek, stock and derivatives trading strategist at Citigroup, said that based on Nvidia's past eight financial report days, the stock price fluctuated on average by more than 9% after the reports. It is reported that investors are preparing for another significant pump in Nvidia's stock. They are buying a large number of options contracts, which will bring returns if Nvidia's stock price pumps more than 10% this week. (FX678)