U.S. stock futures point higher after S&P 500 and Nasdaq snap skids, Nvidia stock gains in volatile trading after chipmaker's better-than-expected results, and Salesforce stock falls after firm releases disappointing report.

Stock futures are higher Friday as markets head into the final trading day of the month. February has been a tough month for the indexes: The S&P 500 and the Dow J

Stock futures were higher Thursday morning after the S&P 500 managed to end its four-day losing stretch — barely. The broad market index closed just 0.01% higher on Wednesday, while the Nasdaq Composite gained 0.