US STOCKS-Futures little changed after 3-day drop; earnings due
* JPMorgan edges down after results
* Citigroup, Johnson & Johnson scheduled to post results
* Futures up: Dow 9 pts, S&P 3 pts, Nasdaq 5.25 pts
By Chuck Mikolajczak
NEW YORK, Oct 14 (Reuters) - U.S. stock index futures were little changed on Tuesday, after the S&P 500 suffered its worst three-day drop since November 2011, ahead of earnings results from companies such as Johnson & Johnson and Citigroup .
* JPMorgan Chase shares edged down 0.4 percent to $57.95 in premarket, after the biggest U.S. bank posted third-quarter earnings. The results were released earlier than anticipated on an investment website ahead of its official release on Tuesday.
* The benchmark S&P closed below its 200-day moving average for the first time since Nov. 16, 2012 on Monday and is now down 6.8 percent from its record closing high on September 18 on concerns global economic weakness could hurt U.S. earnings and the potential spread of Ebola.
* The CBOE Volatility index ended Monday's session at 24.64, its highest close since June 2012.
* S&P 500 companies are expected to show earnings growth of 6.4 percent in the third quarter, according to Thomson Reuters data, with revenue growth expected at 4 percent. After the close, Dow component and chipmaker Intel is set to post results. Continuación...