S&P 500 heading to 1,900 by year end: Dan Nathan By: CNBC.com News September 23, 2014 at 18:17 PM EDT "To me, I actually think there's a bigger storm brewing, and it is in the large caps," RiskReversal.com's Dan Nathan says. Read More >> Related Stocks: Alibaba Group Holding Ltd Apple Sentinelone Inc Cl A