Stock Market Today: Dow, S&P 500, Nasdaq Climb as Tech Rebounds and U.S.-Iran Tensions Ease

U.S. stocks started the week on a high note Monday as investors welcomed signs that direct military exchanges between the U.S. and Iran had paused, easing immediate concerns about further escalation in the Middle East. The improved geopolitical backdrop helped lift sentiment following last week's volatility, while optimism surrounding artificial intelligence and technology stocks also supported the broader market.

The tech-heavy Nasdaq Composite led gains, rising more than 1% as investors returned to growth stocks after several difficult sessions. The S&P 500 also advanced, while the Dow Jones Industrial Average posted more modest gains as traders looked ahead to a holiday-shortened week packed with key economic data, including Thursday's closely watched June jobs report.

Market Movers:

• Iridium Communications (IRDM) +22%, Rocket Lab (RKLB) +9%: Shares of both companies surged after Rocket Lab agreed to acquire Iridium in an approximately $8 billion cash-and-stock deal. The transaction creates a vertically integrated space company combining launch services, satellite manufacturing, communications networks, and spectrum assets while significantly expanding Rocket Lab's recurring revenue base.
• Charter Communications (CHTR) +13%: Shares jumped after reports that Charter and SpaceX have held discussions about launching a consumer wireless service using Starlink's satellite network and Charter's broadband infrastructure. Investors viewed the potential partnership as a significant opportunity to expand both companies' positions in the growing wireless communications market.
• Comcast (CMCSA) +9%: Shares rallied after Comcast announced plans to split into two separate publicly traded companies through a tax-free spinoff. The move will separate NBCUniversal's media and entertainment assets from Comcast's broadband and connectivity operations, allowing each business to pursue independent growth strategies.
• Viridian Therapeutics (VRDN) +4%: Shares gained after the company launched Lumvoa, its first commercial product, following recent FDA approval for thyroid eye disease. Management also outlined plans to file for approval of a next-generation injectable treatment in early 2027, further strengthening its pipeline.
• Verizon Communications (VZ) -8%: Shares declined after the telecommunications company updated its second-quarter outlook to reflect significant restructuring charges tied to its new joint venture with BT Group and ongoing workforce reductions. While management expects the strategic initiatives to strengthen long-term profitability, investors focused on the sizeable near-term costs.
• Micron Technology (MU) -7%: Shares fell after a class-action lawsuit accused several memory manufacturers of coordinating DRAM supply reductions to support higher prices. Although the allegations remain unproven, the filing revived concerns about regulatory scrutiny within the memory chip industry.
• British American Tobacco (BTI) -2%: Shares slipped after the company announced plans to eliminate thousands of jobs as part of an AI-driven restructuring initiative. Management expects the program to generate substantial long-term cost savings while accelerating operational efficiency across its global business.

Geopolitical Relief Supports Market Sentiment

Investor confidence improved after reports indicated the U.S. and Iran had paused direct military actions and agreed to continue diplomatic talks in Qatar. While tensions remain elevated following recent strikes, hopes that negotiations can prevent further escalation helped calm markets and reduced immediate concerns over global energy supplies.

Oil prices initially moved higher before paring gains as traders assessed the likelihood of continued crude shipments through the Strait of Hormuz. Markets remain highly sensitive to developments in the region, with energy prices continuing to influence inflation expectations and Federal Reserve policy forecasts.

Supreme Court Reinforces Federal Reserve Independence

Markets also reacted positively after the U.S. Supreme Court ruled that Federal Reserve Governor Lisa Cook will remain in her position, rejecting efforts to remove her from office. While the ruling expanded presidential authority over other independent agencies, the decision reinforced the Fed's institutional independence, providing investors with greater confidence in the central bank's policymaking process.

Attention now shifts toward Thursday's June employment report, which could significantly influence expectations for interest rates during the second half of the year. Investors continue to weigh resilient economic data against the possibility that persistent inflation could keep monetary policy restrictive for longer.

Earnings Expectations Remain High

Wall Street is also preparing for second-quarter earnings season, with analysts forecasting one of the strongest profit growth periods in several years. Expectations remain particularly high for technology companies as AI-related investment continues to drive corporate spending and revenue growth across much of the sector. However, lofty earnings forecasts leave little room for disappointment. Companies will likely need to deliver both strong financial results and confident forward guidance to justify current valuations following the market's powerful rally over the past year.

Looking Ahead

Investors will closely monitor Thursday's June jobs report for fresh clues about the health of the labor market and the Federal Reserve's next policy moves. Employment data, along with ongoing developments in U.S.-Iran negotiations, could shape market sentiment heading into the Independence Day holiday weekend. Markets will also remain focused on second-quarter earnings expectations and the durability of AI-driven investment. With economic data, geopolitical headlines, and corporate guidance all competing for investors' attention, volatility is likely to remain elevated as the second half of the year begins.