New York equities markets were up at the end of the session on Wednesday, helped by good performance in the computer and chip making sector and falling oil prices.

The Dow Jones Industrial Average gained 0.4 percent to 10,550.71, the Nasdaq composite also rose by 0.4 percent, to 2,145.15, and the S&P 500 was up by 0.1 percent to 1,220.24.

Hewlett-Packard gained 13.2 percent to $26.82 on news that the company has seen sales and profits rise above expectations under its new chief executive. HP’s performance helped other computer companies and chip makers to rally as well.

Dell was up 0.6 percent to $36.92, Apple gained 2 percent to $47.15, and Gateway was up 5.5 percent to $3.28 even though it announced on Monday that it was cutting its revenue and profits estimates for the full year.

Meanwhile, the fall in oil prices provided investors with a psychological, as one analyst commented, but didn’t do much good for the oil companies themselves. Chevron, for example, was down by 1.4 percent on the day to $59.84.

Fashion retailer Abercrombie & Fitch lost 3.9 percent to $58.85 on a quarterly earnings report that showed it had not reached analyst estimates. Merrill Lynch warned that retail stocks could fall well into September as high oil prices and rising interest rates affect consumer spending.