NEW YORK — Oil prices rose Wednesday following the latest flare-up in fighting to threaten the U.S.-Iran ceasefire, and U.S. stocks retreated from their records.

The S&P 500 fell 0.7% from its all-time high for its first drop in 10 days. The Dow Jones Industrial Average dropped 620 points, or 1.2%, and the Nasdaq composite sank 0.9%.

Weighing on the market was a climb of 1.9% for the price of a barrel of Brent crude oil, the international standard, which brought it back to $97.81. It rose after both the United States and Iran said they launched retaliations for earlier attacks or attempted ones.

Palo Alto Networks helped drag the market lower, and it fell 5.6% even though it reported profit for the latest quarter that topped analysts’ expectations. Investors may have been looking for even more after its stock came into the day with a surge of 61.3% for the year so far, more than quintuple the S&P 500’s already big 11.2% rise.

Stocks also felt pressure from higher yields in the bond market, which climbed with the price of oil. The yield on the 10-year Treasury rose to 4.49% from 4.46% late Tuesday and from just 3.97% before the war began.

High yields worldwide are threatening to slow economies and undercut prices for stocks and all kinds of other investments. They have already forced the average long-term U.S. mortgage rate to its most expensive level in nine months, and they could curtail companies’ borrowing to build the artificial-intelligence data centers that have supported the U.S. economy’s growth recently.