US STOCKS-Wall St slips as Apple, healthcare stocks drop
* Fed Chair Janet Yellen to speak at 4:00 p.m. ET
* Apple drops on Barclays price target cut
* Indexes down: Dow 0.22 pct, S&P 0.22 pct, Nasdaq 0.43 pct (Adds details, comments, updates prices)
By Yashaswini Swamynathan
Sept 29 (Reuters) - Wall Street was lower in choppy trading late Thursday morning, pulled lower by Apple and healthcare stocks.
The S&P healthcare index fell 0.7 percent, marking the second straight day of decline as shares of Merck and Johnson & Johnson booked losses.
Apple fell 1.23 percent after Barclays cut its price target. The stock was the biggest drag on Wall Street.
Investors are awaiting Federal Reserve Chair Janet Yellen's speech in Washington for clues on the timing of the next interest rate hike.
"The markets are taking a step back after a couple of pretty good days," said Paul Nolte, portfolio manager at Kingsview Asset Management in Chicago. Continuación...