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US stock futures traded mixed on Monday morning after Iran attacked Israel, putting pressure on a fragile ceasefire in the Middle East, and investors continued to reprice rate-hike bets and assess the artificial intelligence trade.

Futures tied to the Dow Jones Industrial Average (YM=F) moved down 0.2%. Meanwhile, S&P 500 futures (ES=F) rose roughly 0.3% as contracts on the tech-exposed Nasdaq 100 (NQ=F) jumped 0.6%.

Markets start the week on unsteady footing after the Nasdaq Composite (^IXIC) dropped 4% on Friday and the S&P 500 (^GSPC) snapped its nine-week winning streak. A strong rotation out of high-flying semiconductor stocks and into more defensive areas of the market came on the heels of a blowout May jobs report that strengthened the case for the Federal Reserve to raise interest rates later this year.

The Nasdaq eyed a rebound on Monday as Nvidia (NVDA) CEO Jensen Huang and others suggested the tech rout could be an opportunity to buy into the AI trade. Chip stocks gained in premarket, with Micron (MU) up 4% and Nvidia adding nearly 2%.

Oil prices flared after Iran fired missiles at Israel for the first time since April, and Israel struck back despite President Trump's calls for both sides to stop fighting. Brent futures (BZ=F) climbed over 4% to almost $97 a barrel, while West Texas Intermediate futures (CL=F) neared $95 a barrel amid revived concerns that a US ceasefire with Iran could fall apart to return open conflict in the Middle East.

Investors will get a better sense of whether higher oil prices are starting to bleed into core prices on Wednesday with the release of the latest monthly Consumer Price Index. That's followed by an update on the Fed's preferred gauge of inflation, the Producer Price Index, on Thursday. The Fed's focus will be squarely on inflation after a batch of jobs data last week showed the labor market remains stable.

Other key events to watch this week include Oracle (ORCL) earnings on Wednesday and the likely SpaceX (SPCX) IPO on Friday, which is expected to be the largest public offering on record.

Marvell (MRVL) and Flex (FLEX) stocks rose on Monday morning after S&P Dow Jones Indices announced the two companies will join the S&P 500 index (^GSPC), replacing The Campbell’s Company (CPB) and Pool Corp (POOL).

Shares of Marvell, a custom chip provider, jumped nearly 9% on the announcement, while Flex stock gained 4%. S&P 500 inclusion usually leads to a short-term bump in share prices, as it attracts more passive investors.

Although Marvell shares pulled back sharply on Friday, falling 16%, the stock has been on an incredible run this year. It’s up 210% since the start of 2026, and Marvell’s market cap has risen to $230 billion.

Apple (AAPL) will host its annual Worldwide Developers Conference (WWDC) on Monday at its Cupertino, Calif., headquarters.

Yahoo Finance’s Daniel Howley takes a look at what investors can expect:

The event, Tim Cook's last as CEO of the company, will serve as a kind of reboot of Apple's AI strategy, which has lagged behind competing firms' efforts to date.

The biggest news out of the show, which runs through June 12, will likely be the debut of Apple's long-delayed, AI-infused version of Siri.

The digital assistant landed on iPhones with a good deal of fanfare in 2011 but has largely languished over the years. Siri's deficiencies have become even clearer with the advent of generative AI models, chatbots, and, more recently, AI agents.

Apple initially announced a revamped AI version of its helper in 2024, but ran into issues getting it out the door.

Read more here.

Nvidia (NVDA) CEO Jensen Huang called a global tech stocks sell-off that began last week a buying opportunity, saying the buildout of artificial intelligence has just begun.

From Bloomberg:

South Korea's benchmark Kospi (^KS11) Index tumbled on Monday after investors pulled back from AI bets that have fueled a global bull market in equities. US tech shares tumbled Friday on concerns over a possible interest-rate hike.

Huang, responding to questions during a trip to Seoul about how that selloff should be perceived, said the industry was still in the early stages of constructing infrastructure that will serve as the foundation of an AI-fueled future.

On Monday, Nvidia and SK Hynix (000660.KS) said they struck a multi-year agreement to design future generations of memory chips for AI, a win for a South Korean leader vying with Samsung Electronics Co. (005930.KS) in the red-hot arena. Stocks including SK Hynix pared losses after South Korean President Lee Jae Myung said Monday he believed the domestic market remained undervalued.

"We're at the beginning of it, and whatever happened to the stock market, you should be very happy because now you can buy at a discount," Huang said. "Everybody should be very excited," he told reporters after meeting with SK Group Chairman Chey Tae-won in Seoul.

Read more here.