Options traders are betting that the stock rally of Nvidia will continue after the company reports its quarterly earnings on Wednesday. Nvidia's stock price has surged in recent years, driving big returns for investors. Some traders now see Nvidia as the "new Tesla" due to its doubling stock price over the past year. Data from Trade Alert shows call option volumes on Nvidia surging to the highest level in over a year heading into the earnings report. This suggests traders are purchasing calls, betting the stock will keep rising. The ratio of call options bought versus put options sold has increased substantially, another indication that sentiment is tilted towards more upside for Nvidia's stock price following the earnings release.