US STOCKS-Futures dip on global economy concerns; data, earnings due
* Bank of America gains in premarket after results
* Shire shares tumble as AbbVie reconsiders bid
* PPI, Retail sales data due
* Futures off: Dow 24 pts, S&P 5.75 pts, Nasdaq 5.5 pts
By Chuck Mikolajczak
NEW YORK, Oct 15 (Reuters) - U.S. stock index futures were slightly lower Wednesday ahead of a slew of data and corporate earnings, after the S&P 500 eked a tiny gain at the close a day earlier following three sessions of declines spurred by worries over the global economy.
* The benchmark S&P index has lost 6.6 percent since its Sept. 18 record closing high and is now up just 1.6 percent for the year, while the Dow is down 1.6 percent since Dec. 31.
* At 8:30 a.m. EDT (1230 GMT), investors will digest a trio of economic reports, including the Empire State Manufacturing Survey for October, as well as retail sales and the producer price index for September.
* Investors will also look to the latest earnings reports for signs of growth. Bank of America shares were up 1.1 percent to $16.70 in premarket after posting its third-quarter results. Continuación...