NEW YORK (AP) — Encouraging earnings from Cisco and hopeful signs in a housing report lifted the stock market Thursday. The gains nudged the Standard & Poor's 500 index near the four-year high it hit earlier this year.

Cisco Systems led the 30 stocks in the Dow Jones industrial average, surging 10 percent. The world's largest maker of computer networking equipment reported earnings late Wednesday that beat expectations, and it raised its quarterly dividend to 14 cents per share from 8 cents. Cisco gained $1.73 to $19.08.

Before the market opened Thursday, the Commerce Department reported that construction of single-family homes and apartments dipped 1.1 percent in July compared with June. But market analysts seized on another number: Building permits jumped to 812,000, the most since August 2008 and a hint of stronger construction in coming months.

"I think the housing numbers really got investors' attention," said Tim Speiss, chairman of the personal wealth advisers practice at EisnerAmper.

"Presumably, ground is going to get broken, houses are going to get built. It feeds other parts of the economy. A house isn't just sticks and bricks. It's everything else that goes into building a house."

The Dow added 103 points to 13,268 shortly after 2:30 p.m. EDT, an increase of 0.8 percent. The broader Standard & Poor's 500 index rose 11 points to 1,417.

It was enough to push the Dow and S&P 500 near their highest closing levels since 2007. The Dow closed at 13,279 on May 1, and the S&P 500 at 1,419 on April 2.

Wal-Mart Stores was the Dow's biggest laggard. The world's largest retail chain sank 3 percent after it posted quarterly net income and sales that fell short of what analysts had predicted. Its stock lost $2.38 to $72.07.

In other trading, the Nasdaq composite index rose 34 points to 3,065. Facebook fell $1.20, or 5 percent, to an even $20 on the first day that its early investors and a handful of founders were free to sell their stock. In all, 271 million shares can be sold, according to Facebook's regulatory filings.

The S&P 500 has rallied more than 5 percent in the last three weeks, with the bulk of the gains made on a few days in late July and early August. The first jolt was a pledge to protect the euro currency by the head of the European Central Bank, the second a report that showed stronger-than-expected U.S. hiring last month.

Steve Wood, chief market strategist for Russell Investments, said the stock market may simply tread water until the end of the month, when Federal Reserve Chairman Ben Bernanke gives a speech at Jackson Hole, Wyo. Investors expect Bernanke's speech will clarify whether the Fed plans to take additional steps to help the economy.

Markets often languish in August. Fewer shares are traded in late summer as trading desks remain short-staffed until people return from vacation after the Labor Day holiday. Without any major economic news, trading volume usually dries up and stock indexes appear sluggish, as if stuck in their beach chairs.

On Wednesday, just 2.6 billion shares were traded on the New York Stock Exchange. Three months ago, daily trading volume on the NYSE averaged 3.8 billion.

Among other stocks making big moves Thursday:

— Agilent Technologies slid 8 percent, the worst drop in the S&P 500. Agilent said a slump in global demand for its high-tech measuring products helped tug net income down 26 percent. Its stock lost $3.18 to $37.29.

— PetSmart Inc. climbed 4 percent after the pet products store posted better earnings than analysts' forecasts. PetSmart's quarterly net income rose 28 percent, and it raised its annual profit forecast for the second time this year. The company's stock added $3 to $70.52.