Traders get back to buying on Wall Street

Stocks bounced back after a lackluster start to the week with a broad rally Tuesday as traders got back to buying again after a mostly miserable few weeks on Wall Street.

The S&P 500 rose 80.84 points to 4,088.85. The

Dow gained 431.17 points to 32,654.59. The Nasdaq was up 321.73 points to 11,984.52. The Russell 2000 index of smaller companies climbed 56.87 points, or 3.2%, to 1,840.30.

The highly volatile technology accounted for a big slice of the S&P 500’s gains. Apple rose 2.5% and Microsoft rose 2%. Pricey stock values for many big technology companies give the sector more weight in pushing the broader market up and down.

Health care companies also helped lift the market. Abbott Laboratories rose 4.4% after the company made a deal with regulators to ramp up production of baby formula amid a shortage.