U.S. stock futures were mixed Monday after Friday's gains, with Dow Jones futures down 0.07%, S&P 500 futures up 0.16%, Nasdaq 100 futures up 0.47% and Russell 2000 futures down 0.15% as investors prepared for a heavy week of July inflation, consumer spending and sentiment data. Iran's warning that the Strait of Hormuz will not reopen unless the U.S. meets its demands, even as an Oman deal enters its "final stages," kept energy markets in focus alongside President Donald Trump's comment that Washington is "only semi-negotiating" with Tehran. The 10-year Treasury yield stood at 4.65%, the two-year at 4.21%, and CME Group's FedWatch tool showed a 43.9% chance of a September Federal Reserve rate hike. Premarket trading also highlighted company moves, including Plug Power up 6.42% and Rocket Lab up 2.95% before earnings, T. Rowe Price up 8.10% after second-quarter results, and Check-Cap and BIO-Key International lower after company-specific announcements. WTI crude rose 1.00% to $78.96 a barrel, gold gained 0.14% to $4,348.44 an ounce, the U.S. Dollar Index was at 99.6550, Bitcoin traded at $65,165.82, and Asian and European equity markets were mostly higher.