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Stocks tumble as Wall Street nears longest losing streak in nearly four years

Rising oil prices tied to the Iran war, weaker consumer sentiment, and higher Treasury yields pushed U.S. stocks lower and left Wall Street facing a fifth straight weekly loss.

Mar 27th 2026 · United States

Insights

  • Wall Street is headed for a fifth straight weekly decline, the longest stretch in nearly four years.
  • The S&P 500 fell 0.85% to 6,422, the Dow lost 0.8% to 45,589, and the Nasdaq declined 1.3% in late-morning trading.
  • Brent crude rose 2.2% to $104.13 a barrel and U.S. crude rose 3% to $97.28 amid Iran war concerns.
  • The 10-year Treasury yield climbed to 4.44% from 3.97% before the conflict, pushing up mortgage and borrowing costs.
  • University of Michigan preliminary March consumer sentiment hit its lowest reading since December 2025, adding to market unease.