Wall Street sinks as the Gulf conflict triggers a sharp sell‑off, sending major U.S. indexes into their worst decline of the year.
Wall Street suffered one of its sharpest declines of the year on Tuesday, March 3, as escalating military tensions between the United States and Iran sent shockwaves through global markets. The Dow Jones fell 722 points (–1.5%), hitting an intraday low of –1,277 points, while the S&P 500 and Nasdaq Composite each dropped –1.4%, with deeper losses during the session of –2.5% and –2.7% respectively. What began as a geopolitical crisis in the Gulf has now become a financial one.
Gulf Conflict Triggers a Flight to Safety
The sudden escalation of the U.S.–Israel–Iran conflict has pushed investors out of equities and into defensive assets. The closure of the Strait of Hormuz, combined with strikes on Iranian infrastructure, has intensified fears of a prolonged regional war. As a result, gold, Treasury bonds, and cash saw heavy inflows, while equities across nearly all sectors turned red.
According to market data reported by CNBC, Bloomberg, and Reuters, every sector of the S&P 500 ended the day lower — except energy, which surged as oil prices spiked. Brent crude climbed above $82 per barrel, and analysts warn that prices could break above $100 if the conflict widens.
Tech and Financial Stocks Under Pressure
Technology stocks, typically sensitive to geopolitical risk, were among the hardest hit. Apple, Nvidia, and Meta each fell between 2% and 4%, while major banks faced heightened volatility amid uncertainty over interest rates and global liquidity.
The Nasdaq, which had shown signs of recovery in February, has now reversed course. Investors fear a return to stagflation — the painful combination of high inflation and slowing growth.
A Drop Reminiscent of Early 2020
Tuesday’s sell‑off marks the steepest decline in more than a year and evokes comparisons to March 2020, when markets collapsed at the onset of the pandemic. This time, however, the shock is geopolitical — and far less predictable.
Source
Market data and analysis from CNBC, Bloomberg, and Reuters, updated as of March 3, 2026.