A dubious analysis by CNBC of the culprits behind the unusual downturn in Apple's stock price has identified hedge funds as having dumped their shares in the world's most valuable publicly-traded company in an effort to take profits from it before the end of the year. AAPL, which has seen a spectacular increase in value over the last several years, is thought by some analysts to be heading for a period of less-remarkable gains now that competition in the smartphone and tablet space has matured, which may have triggered the drop in price.