Nvidia stocks jumped 2.1 per cent in premarket trading on Monday. The world's most valuable company is scheduled to report results on Wednesday. Expectations ‌are high for Nvidia, whose shares have risen 36 per cent from a March low, while the Philadelphia SE Semiconductor Index has surged more than 60 per cent this year on strong demand for AI-related chips.This week brings little in the way of economic data, however, a handful of major U.S. retailers will be posting their latest financial results, along with chipmaker and AI bellwether Nvidia.Nvidia reports results ⁠on Wednesday, as an exceptionally strong first quarter for U.S. corporate profit growth winds down.Shares of Nvidia, the world's largest company by market capitalization, and other semiconductor stocks have propelled indexes higher in recent weeks. Nvidia shares are up 36 per cent since the March low, while the Philadelphia SE semiconductor index is up more than 60 per cent, amid voracious demand for chips as tech companies spend massively to build data centers and other AI-related infrastructure.Nvidia's AI products have driven its shares up over 1,800 per cent since the latest bull market began in October 2022."What we need to see from Nvidia is evidence that justifies the increase in the stock price and justifies their position and their benefit from this increased spending in data centers," Bond said. "The results will be looked at ... as a signal into the health of the rest of the ‌industry."One topic is whether rivals are eroding Nvidia's market share, said Yung-Yu Ma, chief investment strategist at PNC Financial Services Group. "It's probably going to be more a story of, is Nvidia able to defend its leadership position as well as it has ​been able to the past ​few years?" Ma said.