The S&P 500 and Nasdaq have both felt pressure as shares of major tech companies came under pressure Monday. Investors continue to keep a close eye on rising Treasury yields, which heighten worries about valuations, particularly for some of the market's most highly valued names.

Dow Jones futures fell Monday morning, along with S&P 500 futures and especially Nasdaq futures. Key economic data and earnings loom.Apple plans to redesign the iPhone for the first time in five years and introduce a new smart home hub,

Asian shares are mixed after gains for oil-and-gas producers helped offset drops for Nvidia and other Big Tech companies on Wall Street

U.S. stock indexes were split as gains for oil-and-gas producers helped offset drops for Nvidia and other Big Tech companies.

U.S. stock indexes are split on Monday as drops for Nvidia and other Big Tech companies work against gains for oil-and-gas producers. The S&P 500 was virtually flat in late trading after erasing an earlier fall of 0.