U.S. stock futures slumped Friday after Israel carried out a large-scale airstrike on Iran, escalating geopolitical risks, sending oil prices soaring and threatening global growth. 

At 05:45 ET (09:45 GMT), Dow Jones Futures slid 500 points, or 1.2%, S&P 500 Futures fell 70 points, or 1.2%, and Nasdaq 100 Futures plunged 315 points, or 1.4%.

The main Wall Street indices all closed marginally higher on Thursday, with the broad-based S&P 500 index creeping closer to the all-time high reached in February, being less than 2% off that level. 

Global stocks have posted an near-continuous rally since early April, with traders largely hoping that President Donald Trump’s tariff agenda may not be as aggressive as originally thought.