The three-year chart portrays a stock that has enjoyed a sweet advance with tests of support along the moving averages but no breaches. What is evident is that the shares have pulled back from the 52-week high of $90.74 that was touched back in November of 2013. The MACD and the RSI both generated sell signals in late October of 2013. The stock caught a bounce off the 200-day moving average in February of 2014 and is now meeting resistance near $88.00.