Wall Street slipped on Wednesday as investors absorbed a double dose of bad news: the hottest inflation reading in three years and an overnight exchange of strikes between the United States and Iran that sent oil prices back toward $90 a barrel. In late-morning trading the S&P 500 was down about 0.5 percent, the Dow Jones Industrial Average lost roughly 0.6 percent, and the Nasdaq Composite led the pullback as Tuesday's selloff in technology shares deepened.
US benchmark crude rose by about $1.76 to near $89.92 a barrel after Iran fired missiles and drones at American bases in Jordan, Kuwait and Bahrain, retaliating for US strikes on targets near the Strait of Hormuz. President Donald Trump's warning that Iran would "have to pay the price" for slow-walking negotiations added to fears that the conflict's energy shock has further to run.
The morning's consumer price report quantified that shock. Headline inflation reached 4.2 percent in the year through May, the highest since April 2023, driven by a 40.5 percent annual surge in gasoline prices. Core inflation, at 2.9 percent, came in cooler than expected — a split that left traders still betting the Federal Reserve holds rates steady at its June 17 meeting.
Small-caps provided a rare bright spot, with the Russell 2000 up about 0.4 percent as investors rotated toward domestically focused names seen as less exposed to oil-driven margin pressure and global supply chains.
Index changes added single-stock fireworks: Marvell Technology jumped about 10 percent after S&P Dow Jones Indices said the chipmaker will join the S&P 500. Corning extended its gains after Monday's multibillion-dollar fiber agreement with Amazon, part of an AI infrastructure build-out that has more than doubled the glassmaker's shares this year.
The path from here, strategists said, runs through two dates: any further military exchange in the Gulf, and the Fed's decision next Wednesday. With energy doing the inflationary damage and core prices behaving, markets are treating the CPI print as a war indicator as much as a monetary one — which makes crude, not the Fed, the number to watch.