Consumers shop at the J.C. Penney's department store in Pleasanton, Calif. J.C. Penney Co. is reporting that its second-quarter profit slid 36 percent, while predicting that earnings in the current quarter will fall short of Wall Street expectations as customers pull back on buying clothing in a tough economy.

New York ? Wall Street closed mixed Friday after playing out a now familiar scenario: Upbeat sentiment about falling oil prices flagged amid ongoing concerns about weak credit markets and the economy. The major indexes also turned in a mixed performance after another volatile week.

Investors were encouraged early in the session as oil’s pullback lifted the outlook for consumer companies and eased concerns that record-high energy prices would force Americans to curb spending. Light, sweet crude dropped $1.24 to settle at $113.77 a barrel on the New York Mercantile Exchange, and earlier traded as low as $111.34, its lowest level in more than three months.

Oil fell on a growing sense that economies around the world are joining the U.S. in a slowdown. The rising dollar, which is gaining strength on economic concerns, contributed to the sell-off in crude and other commodities. Crude is down more than $35 from its July 11 record of $147.27; meanwhile, gold prices that swept past $1,000 an ounce earlier this year are now below $800.

While the decline in oil was placating investors this week, it still did not offset their ever-present anxiety over the slumping housing and credit markets. Concerns about more write-downs at investment banks continued, causing major market indexes to fluctuate over the course of the week; the Dow Jones industrials continued a volatile streak, dropping more than 100 points two days in a row amid intensifying fears about the health of the financial sector.

“With some of this sharp price collapse in commodities you would think the market would be up a lot more,” said Greg Church, chief investment officer of Church Capital Management. “The underlying factor is that credit continues to appear to be very weak.”

The Dow rose 43.97, or 0.38 percent, to 11,659.90. Broader indexes were narrowly mixed. The Standard & Poor’s 500 index rose 5.26, or 0.41 percent, to 1,298.20, while the Nasdaq composite index fell 1.15, or 0.05 percent, to 2,452.52.

For the week, the Dow finished down 0.63 percent and the S&P 500 rose a modest 0.15 percent. The tech-focused Nasdaq, however, logged its fifth-straight weekly gain by finishing up 1.59 percent; it has risen 8.5 percent since mid-July.

The Nasdaq’s performance this week indicates that investors are rotating back into technology stocks. However, the market has had little motivation to move into other sectors – and analysts said many traders are simply buying into the dips.

The uncertainty in the market has increased demand for the safety of government debt, which rose modestly Friday. In late trading, the yield on the benchmark 10-year Treasury note, which moves opposite its price, slid to 3.84 percent from 3.90 percent late Thursday.

The dollar rose against other major currencies, contributing to Friday’s pullback in oil and other commodities.

The day brought somewhat disappointing news about consumers. The University of Michigan reported a slightly smaller-than-expected rise in consumer sentiment in early August compared with July, evidence that the consumer remains under pressure.

Moreover, earnings outlooks from retailers J.C. Penney Co. and Abercrombie & Fitch Co. on Friday came in below forecasts.