{"id":61849,"date":"2026-05-12T09:38:18","date_gmt":"2026-05-12T13:38:18","guid":{"rendered":"https:\/\/www2.stockmarketwatch.com\/stock-market-news\/us-inflation-hits-3-year-high-as-iran-war-costs-surge-and-trump-proposes-1-5-trillion-defense-budget\/61849\/"},"modified":"2026-05-12T09:38:18","modified_gmt":"2026-05-12T13:38:18","slug":"us-inflation-hits-3-year-high-as-iran-war-costs-surge-and-trump-proposes-1-5-trillion-defense-budget","status":"publish","type":"post","link":"https:\/\/www2.stockmarketwatch.com\/stock-market-news\/us-inflation-hits-3-year-high-as-iran-war-costs-surge-and-trump-proposes-1-5-trillion-defense-budget\/61849\/","title":{"rendered":"US Inflation Hits 3-Year High as Iran War Costs Surge and Trump Proposes $1.5 Trillion Defense Budget"},"content":{"rendered":"<h2>Key Takeaways<\/h2>\n<ul>\n<li><strong>US Inflation accelerated to 3.8% YoY in April<\/strong>, marking a three-year high driven by a <strong>20.7% surge in airfares<\/strong> and persistent services inflation.<\/li>\n<li><strong>The estimated cost of the Iran war has climbed to $29 billion<\/strong>, an increase of $4 billion in less than two weeks, according to senior Pentagon officials.<\/li>\n<li><strong>President Trump proposed a massive $1.5 trillion defense budget<\/strong> to rebuild the US industrial base and reverse what he termed &quot;Biden-era mismanagement.&quot;<\/li>\n<li><strong>Major US indices opened lower<\/strong> following the CPI data, with the <strong>Nasdaq (<a href=\"\/stock\/QQQ\">QQQ<\/a>)<\/strong> leading losses, down <strong>0.75%<\/strong> in early trading.<\/li>\n<li><strong>OpenAI has committed $20 billion to Cerebras<\/strong>, a move that could grant the AI giant an <strong>11% stake<\/strong> in the chipmaker.<\/li>\n<\/ul>\n<h2>Inflation Data Rattles Markets<\/h2>\n<p>The <strong>US Consumer Price Index (CPI) rose to 3.8%<\/strong> on an unrounded year-over-year basis in April, exceeding analyst expectations and reaching its highest level in three years. <strong>Chicago Fed President Austan Goolsbee<\/strong> noted that the &quot;worst part&quot; of the report is the stickiness of <strong>services inflation<\/strong>, which continues to offset cooling in other sectors.<\/p>\n<p>Market reaction was swiftly negative as <strong>short-term interest-rate futures<\/strong> pared gains, signaling investor concern over prolonged high rates. The <strong><a href=\"https:\/\/stockmarketwatch.com\/indices\/dowjones\/today\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Dow Jones Today\">Dow Jones<\/a> Industrial Average (<a href=\"\/stock\/DIA\">DIA<\/a>)<\/strong> fell 28.35 points, while the <strong><a href=\"https:\/\/stockmarketwatch.com\/indices\/sp500\/today\" data-internallinksmanager029f6b8e52c=\"3\" title=\"snp500 today\">S&amp;P 500<\/a> (<a href=\"\/stock\/SPY\">SPY<\/a>)<\/strong> dropped <strong>0.35%<\/strong> to 7,386.54 immediately following the opening bell.<\/p>\n<p>Real wages continue to suffer as <strong>average weekly income fell 0.2%<\/strong> in April after adjusting for inflation. Despite Americans working more hours to cover rising food and gas costs, the <strong>20.7% jump in airfares<\/strong> and rising shelter costs are significantly eroding purchasing power.<\/p>\n<h2>Defense Spending and the Iran Conflict<\/h2>\n<p>The Pentagon has revised the cost of the ongoing conflict with Iran upward to <strong>$29 billion<\/strong>, reflecting the intensity of recent military operations. <strong>Defense Secretary Pete Hegseth<\/strong> stated that the US has a &quot;plan to escalate&quot; if necessary, even as the administration maintains that a <strong>ceasefire agreement<\/strong> remains technically in effect.<\/p>\n<p>President Trump is utilizing the conflict to justify a <strong>$1.5 trillion defense budget proposal<\/strong>, aiming to &quot;rebuild military capacity&quot; after years of what he describes as &quot;America Last&quot; offshoring. Trump asserted that <strong>US strikes have severely weakened Iran&#39;s military leadership<\/strong>, and he expects the Iranian economy to collapse under the weight of a port siege.<\/p>\n<p>On the diplomatic front, <strong>Iranian and Omani delegations<\/strong> met in Muscat to discuss &quot;safe passage&quot; arrangements for the <strong>Strait of Hormuz<\/strong>. While Trump expressed confidence that Iran will eventually stop uranium enrichment, he emphasized that the US is in &quot;no hurry&quot; to reach a formal agreement.<\/p>\n<h2>Global Geopolitics and Tech Developments<\/h2>\n<p>Russia announced the successful test of its <strong>&quot;Sarmat&quot; intercontinental ballistic missile<\/strong>, adding further tension to the global security landscape. Simultaneously, Iranian officials described <strong>China<\/strong> as a key part of their &quot;political balancing&quot; strategy as they face increasing isolation from Western markets.<\/p>\n<p>In the technology sector, <strong>OpenAI&#39;s $20 billion commitment to Cerebras<\/strong> highlights the escalating arms race for AI hardware. To support this growing industry, <strong>CME Group (<a href=\"\/stock\/CME\">CME<\/a>)<\/strong> announced plans to create a <strong>futures market for computing power<\/strong>, allowing companies to hedge the costs of AI processing.<\/p>\n<p>In healthcare, <strong>Roche (<a href=\"\/stock\/RHHBY\">RHHBY<\/a>)<\/strong> CEO Thomas Schinecker confirmed a positive long-term outlook for the company&#39;s <strong>Diagnostics Division<\/strong>. The company expects <strong>mid- to high-single-digit sales growth<\/strong>, providing a rare bright spot for European equities amid global volatility.<\/p>\n<h2>UK Political Crisis<\/h2>\n<p>The British government is facing a leadership vacuum as <strong>three ministers resigned<\/strong> today, including Alex Davies-Jones. Critics and allies alike are calling for the <strong>Prime Minister to set a firm date for departure<\/strong> to stabilize the country&#39;s interests.<\/p>\n<p><strong>Manchester Mayor Andy Burnham<\/strong> is reportedly meeting with Labour MPs in London today, fueling speculation of a leadership run. Allies of <strong>Al Carns<\/strong> are also reportedly preparing for a potential bid should the Prime Minister stand down in the coming days.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Key Takeaways US Inflation accelerated to 3.8% YoY in April, marking a three-year high driven by a 20.7% surge in 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