Cramer’s week ahead: Earnings from Nvidia, Dell, Costco and Salesforce

CNBC’s Jim Cramer on Friday guided investors through next week on Wall Street, saying quarterly reports from Nvidia, Costco, Dell and Salesforce have the potential to move their respective sectors and the rest of the market. He also warned that stocks’ performance can depend on action from President Donald Trump. “We’re headed into a fickle…