Stocks rebound Monday as Iran-Israel tensions cool, sending Intel and Marvell shares higher

U.S. markets opened higher on Monday, June 8, as traders leaned into signs that Iran might halt strikes against Israel, following President Donald Trump’s public calls for both sides to stop shooting. The shift improved risk sentiment after a volatile start to the week, when investors had been weighing the potential for wider Middle East disruption. In parallel, semiconductors regained momentum as investors rotated back toward AI infrastructure plays after a recent pullback. The overall tone in early trading was a rebound rather than a clean reversal, reflecting how quickly geopolitical headlines can change.

Geopolitics and tradeable hedges were still driving the tape, according to coverage of Monday’s moves. A separate Reuters account said global stocks were mixed as the tech rout rippled through markets, while signs of easing tensions between Iran and Israel supported European equities and helped U.S. futures recover after Friday’s selloff. That context matters for technology shares because they have recently traded like a high-beta proxy for expectations about AI demand and the pace of risk appetite.

Within technology, semiconductors led the rebound. Yahoo Finance reported that Micron Technology and Intel both surged around 10% in Monday’s early move, alongside a rebound in other chip names. Marvell’s advance was particularly notable in trading, with the company singled out as one of the stronger performers tied to company-specific news rather than purely macro sentiment.

Marvell’s rally was linked to its scheduled S&P 500 entry. Reuters reported that Marvell is set to join the index later this month, replacing PoolCorp before trading begins on June 22. Index inclusion tends to matter for large cap stocks because passive funds tracking the benchmark must buy shares around the effective date, and the expectation of those flows can amplify moves even before inclusion takes effect.

Another Yahoo Finance item tied the same theme to the day’s action, saying Marvell surged in early trading on expectations around its June 22 S&P 500 addition. That alignment between broad market risk appetite and a predictable “index rebalance” catalyst is one reason chip stocks, and not just the largest names, participated in Monday’s rebound. It also helps explain why smaller semiconductor peers can sometimes outperform during short windows when the market switches from fear to positioning.

Intel, meanwhile, was part of the broader “AI-infrastructure” basket move. Even though Monday’s price action was not tied to a fresh Intel earnings release in the coverage, the company has continued to use industry events to stress its data center and AI roadmap. In late May and early June, Intel highlighted progress around Xeon-based platforms and networking in its Computex programming, reinforcing its strategy to connect CPUs, networking, and AI workloads across edge and data center systems.

What is still uncertain is how much of the rally is sustainable. Monday’s move appears to be a combination of geopolitics-driven sentiment improvement and company-specific index mechanics for certain stocks, rather than a single technology earnings catalyst that would change fundamentals immediately. Also, the Yahoo Finance “Stock Market Today” page that shaped the initial framing was not directly accessible for detailed line-by-line confirmation during this reporting, so only the portions that were corroborated through other accessible coverage can be treated as confirmed.

Investors will likely watch for follow-through once the market digests the next layer of geopolitics and macro data. For semiconductor shares like Intel and Marvell, attention should also remain on near-term demand indicates for AI infrastructure and on the mechanics around index changes, including how pre-positioning trades into June 22. If tensions re-escalate, the same high-beta tech complex could give back gains quickly, turning Monday’s rebound into a short-lived repricing rather than a durable trend.