New York — Wall Street and oil prices are holding steadier Thursday following their sharp swings the day before in the wait to see what will come next after President Donald Trump raised doubts about the temporary truce in the war with Iran.

The S&P 500 rose 0.3%, even though the United States launched new airstrikes against Iran, which responded by targeting U.S. allies in the Middle East. The Dow Jones Industrial Average was down 47 points, or 0.1%, as of 9:35 a.m. Eastern time, and the Nasdaq composite was 0.5% higher.

In the oil market, prices edged lower following their spurts higher from the day before. The price for a barrel of Brent crude, the international standard, slipped 0.1% to $77.94. That’s down from $78.02 the day…