S&P 500 sees its weakest week of summer

NEW YORK — U.S. stocks pulled further back from their records Friday to cap the weakest week for the S&P 500 since May.

Indexes sloshed between small gains and losses for much of the day before turning lower in the afternoon after Iran said it seized a British oil tanker, the latest escalation of tensions between Tehran and the West. Reined-in expectations for how deeply the Federal Reserve will cut interest rates at its next meeting also weighed on stocks.

The S&P 500 fell 18.50 points, or 0.6 percent, to 2,976.61. After setting its record high on Monday, the index see-sawed mostly lower and lost 1.2 percent for the week. It’s just the second down week for the index in the last seven.

The Dow Jones Industrial Average fell 68.77, or 0.3 percent, to 27,154.20, and the Nasdaq composite lost 60.75, or 0.7 percent, to 8,146.49.

Momentum for stocks has slowed since early June, when they began soaring on expectations that the Federal Reserve would cut interest rates for the first time in a decade to ensure the U.S. economy doesn’t succumb to weaknesses abroad. The Fed’s next meeting is scheduled for the end of this month.

Late Thursday, Treasury yields sank after comments by Fed officials raised expectations that it may cut rates by half a percentage point, rather than the typical quarter point. But yields climbed Friday as the market grew more convinced that the Fed will cut just 0.25 percentage points on July 31.

“It could be 25 wasted,” said Brent Schutte, chief investment strategist at Northwestern Mutual Wealth Management Company, who said a half-point cut would be more effective. “I think it’s more important to shock the market a bit and convince the market they’re serious about pushing inflation above 2 percent.”

The yield on the 10-year Treasury rose to 2.05 percent from 2.04 percent late Thursday. The two-year yield, which is more influenced by expectations of Fed moves on rates, climbed to 1.81 percent from 1.77 percent.

Until the Fed’s meeting, investors are focusing on whether companies can top the meager expectations Wall Street has for the profits they made during the spring.

“The biggest overall trend is if you beat, you may be mildly rewarded, and if you miss, you are going to get pounded,” said J.J. Kinahan, chief market strategist

Energy stocks had the biggest gains in the S&P 500 after the price of oil climbed on fears of possible supply disruptions.

Benchmark U.S. crude oil climbed 33 cents, or 0.6 percent, to settle at $55.63 after being down earlier in the day. Brent crude, the international standard, rose 54 cents, or 0.9 percent, to $62.47 per barrel.

Wholesale gasoline rose 1 cent to $1.84 per gallon. Natural gas fell 4 cents to $2.25 per 1,000 cubic feet. for TD Ameritrade.