Good news at opposite ends of the economy – from Wall Street’s bankers to Main Street’s bargain hunters – sparked a broad rally yesterday that marked one of the market’s most robust days in years.

The Dow Jones industrial average surged 319.54, or 2.46 percent, to 13,307.09, while the Standard & Poor’s 500 index jumped 41.87, or 2.91 percent, to 1,481.05. The Nasdaq roared ahead 3.46 percent to 2,673.65, up 89.52.

Technology stocks took off to their best session in more than four years after Apple said it was working on a deal to sell its iPhone in China.

Among blue chips, Wal-Mart led the charge with a holiday lift for other worried retailers, saying that its customers – many of whom are pressured by soaring mortgage and credit card payments – appear to be spending more than expected.

Goldman Sachs added a welcome upbeat for Wall Street’s bruised banks, saying its subprime mortgage losses are contained and won’t be anything near the other investment banks’ more than $40 billion in write-downs of junk mortgage paper.

Also helping fuel the winning session was crude oil’s plunge to $91.17 a barrel, off $3.45, which raised prospects that corporate profits won’t be choked off by energy’s soaring costs toward the $100-a-barrel level.

Meanwhile, investors haven’t given up hope for more rate cuts. Interest rate futures are priced with expectations that the Fed will cut benchmark rates another quarter percentage point to 4.25 percent next month.

The stock market’s four-session losing streak has set up a lot of bargains for investors, analysts say.

Apple jumped 10.5 percent, the most in 14 months, rising $16.20 to $169.96.

Corning, which makes glass for flat-screen TVs, climbed 10 percent, the most in 10 months, adding $2.14 to $23.54. Goldman surged 8.5 percent, the most in 6½ years, rising $18.33 to $233.04. Wal-Mart shot up 6.1 percent, the most in five years, gaining $2.65 to $45.97. paul.tharp@nypost.com