The nearly 28 percent decline in shares of Apple since mid-September isn't just painful to individual shareholders. It's also being felt by investors who chased hot mutual funds that loaded up on Apple as the stock raced to a record $705 per share.

Apple makes up 10 percent or more of assets in 117 out of the 1,119 funds that own its shares, according to data from Lipper, a Thomson Reuters company. Those big stakes have contributed positively to each fund's annual performance to date, with Apple still up about 32 percent for the year. It was trading at $527.73 soon after the opening on Friday.