It’s been an incredible run for Apple (AAPL). Shares of the technology giant are up 70% in the past year, handily beating the 13% return for the S&P 500. Investors that have held Apple for any length of time have been handsomely rewarded for their investment. The huge returns are due squarely to Apple’s impressive growth over this time frame, thanks to the iPhone 6. With its huge rally and outstanding earnings in the rear-view mirror, the big question now is whether Apple still has room to run, or whether perhaps it’s time to take some profits off the table. This is a tug-of-war that investors need to grapple with in 2015. For what it’s worth, the stock still isn’t expensive, as it trades for just 17 times earnings per share.