U.S. stocks opened lower at the open Monday.
Oil prices shot up and Iran rumors added to the jitters in the sector.
The S&P 500 dropped rapidly amid volatility.
Tech stocks kept the S&P under pressure as earnings lagged.
The Dow posted a slight uptick but most shares were flat to lower through the session.
Traders think earnings will show if big tech and consumer stocks can rebound before week’s end once volatility eases.