U.S. stocks were solidly higher in midday trading as the market headed for a fourth day of gains.
Traders were encouraged by economic growth figures from China, as well as strong quarterly earnings from several big U.S. companies.
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Apple and Harley-Davidson both rose after releasing their latest quarterly results. Apple gained 2 percent after predicting strong holiday sales, and Harley-Davidson jumped 7 percent after its results beat analysts' forecasts.
The Standard & Poor's 500 index rose 28 points, or 1.5 percent, to 1,932 as of 11:45 a.m. Eastern time Tuesday.
The Dow Jones industrial average rose 163 points, or 1 percent, to 16,562.
The Nasdaq composite rose 77 points, or 1.8 percent, to 4,393.
The price of oil rose. U.S. crude gained 44 cents to $82.35 a barrel.