Stock futures climbed early Tuesday, reclaiming losses in the previous session, as investors look through the latest developments in the Iran war to focus on corporate earnings updates. Futures tied to the Dow Jones Industrial Average rose 208 points, or 0.40%, while S&P 500 futures and Nasdaq 100 futures advanced 0.55% and 1.36%, respectively. In regular trading, the Dow dropped 307.16 points, or 0.59%, weighed down by a 2% in decline in Apple shares.

The broad market S&P 500 fell 0.19%, and the tech-heavy Nasdaq Composite lost 0.05%. Central Command has carried out its 10th consecutive night of strikes on Iran since President Donald Trump declared the ceasefire "over," while Tehran's forces have struck U.S. military assets across the Middle East and its Houthi allies have declared a maritime embargo against Saudi Arabia.

But oil prices have edged lower in early trade as traders monitored a renewed diplomatic push towards mediation efforts between the U.S. and Iran. Reports suggest mediators are proposing a 10-day ceasefire between the two adversaries.

West Texas Intermediate crude futures were down 0.88% at $82.50 a barrel, while international benchmark Brent was almost 1% lower at $88.34. Oil had traded higher during Monday's session after President Donald Trump said in a Truth Social post that Tehran will pay for the deaths of three U.S. service members.

The climb in energy prices pulled the major averages lower on the day, even as semiconductor stocks clawed back some of last week's steep losses. The VanEck Semiconductor ETF (SMH) posted a modest gain, aided by Micron Technology and Advanced Micro Devices. As companies issue their latest earnings results this week, traders will be hunting for details on artificial intelligence spending.

They'll also be listening on earnings calls for confirmation that executives aren't becoming more cautious about the second half of the year. Big names set to report later this week include Alphabet, IBM and Tesla. General Motors and 3M are slated to report Tuesday morning, while quarterly results from Chubb are due after the closing bell.