US STOCKS-Wall St rises with Apple, biotechs, but Fed jitters remain
* Earnings won't grow as much as expected - David Tepper to CNBC
* Apple biggest boost on indexes
* Krispy Kreme falls after cutting forecast
* Indexes up: Dow 0.5 pct, S&P 0.5 pct, Nasdaq 0.8 pct (Updates with Restoration Hardware up after the bell, details of recent volatility)
By Caroline Valetkevitch
Sept 10 (Reuters) - U.S. stocks ended higher on Thursday in another day of broad swings as investors showed nervousness ahead of next week's much-anticipated Federal Reserve meeting, but gains in Apple and biotech shares supported the day's advance.
Apple's shares rose 2.2 percent to $112.57, rebounding from losses the day before when the iPhone and iPad maker unveiled new offerings.
Biotech also boosted the market, with Gilead up 3.3 percent at $107.25, giving the second-biggest boost to the S&P 500 and Nasdaq after Apple. The Nasdaq biotechnology index was up 1.9 percent.
The day's gains follow a 1-percent market decline on Wednesday and weeks of volatility largely tied to worries about a slowdown in Chinese growth and its impact on the global economy. Investors also have been nervous about next week's Fed meeting and whether the U.S. central bank will decide to raise interest rates for the first time in nearly a decade. Continuación...