Microsoft Corp., Nvidia Corp., and Tesla Inc. advanced on Tuesday as investors tracked a fast-moving geopolitical crisis involving Iran, the United States, and major American companies operating in the Middle East. The gains came even as Iran’s Islamic Revolutionary Guard Corps warned that a group of U.S. firms, including Microsoft, Nvidia, and Tesla, could be targeted from April 1, adding pressure to an already tense market environment.
NVIDIA shares rose to $173.34, up 4.95%, after trading between $166.96 and $173.88 during the session. Tesla climbed 4.24% to $370.34, while Microsoft gained 2.33% to $367.34. The market mood shifted further after Iranian President Masoud Pezeshkian said Iran was prepared to end the war but wanted guarantees. That statement introduced a possible opening for negotiations at a moment when investors had been pricing in a wider regional conflict and greater disruption to oil flows.
Iran’s warning named 18 companies with U.S. links, including Apple, Google, Meta, Microsoft, Intel, IBM, Dell, Tesla, Nvidia, Boeing, HP, Cisco, and Oracle. The Revolutionary Guards said these firms would face retaliation in response to attacks on Iranian officials and state infrastructure. The statement also warned employees to leave their workplaces, raising concern about the safety of workers at offices, facilities, and other business sites across the region.
Iran Warning Puts U.S. Tech Firms Under Pressure
The threat drew attention because several of the named companies have business ties, infrastructure projects, or strategic partnerships in Gulf markets. Microsoft, Nvidia, and Tesla are among the firms closely followed by investors for their global exposure and roles in sectors that remain central to market performance.
Microsoft is a leading force in enterprise software and cloud services, Nvidia remains at the center of demand for artificial intelligence chips, and Tesla continues to rank among the market’s most actively traded growth stocks. Any increase in security threats in the Middle East can alter investors' views on regional expansion, employee protection measures, and continuity planning.
The threat to workers also made the development more urgent. A warning directed at employees, along with language urging people near company sites to move away, increased concern that business locations in the region could become part of a wider conflict. That has placed added focus on how multinational companies may respond to security risks in key commercial hubs.
Donald Trump Widens Pressure with New Threats
The crisis deepened after President Donald Trump escalated his rhetoric toward Tehran. Trump warned that if no agreement is reached to end the conflict and reopen regional trade routes, the United States could strike Iran’s water and energy infrastructure. That threat added to fears of a broader campaign against critical facilities and increased concern about the effect on oil shipments, transport networks, and corporate operations across the Gulf.
Trump also delivered a sharp message to allies dealing with fuel shortages, saying they should secure their own oil supplies rather than depend on Washington. His remarks came as the conflict placed the Strait of Hormuz back at the center of global market attention. The waterway remains one of the world’s most important oil transit routes, and any disruption there can quickly affect energy costs, shipping, and investor confidence.
At the diplomatic level, Trump said the United States was in contact with Iran’s parliamentary speaker, Mohammad Bagher Ghalibaf, as part of efforts to reach a deal. That claim introduced a possible path toward de-escalation, but Iranian officials pushed back on the idea of active talks and coupled their response with renewed threats against American forces. The gap between Washington’s stated negotiating position and Tehran’s public denial left the status of any peace effort uncertain.
