Apple stock plunged 6.6 percent Friday, a day after the company delivered a strong earnings report but surprised investors with a major shake-up of its quarterly reporting structure and light guidance for the holiday quarter.
Shares ended trading at $207.48, just above the threshold for Apple to maintain its historic $1 trillion market cap, based on Apple's most recently reported share count. That share count, and corresponding share price threshold to maintain a $1 trillion market value, are likely to change when Apple files its quarterly disclosure.
It's the worst day of trading for Apple since January 2014. The losses push Apple into correction territory, more than 11 percent off its recent high.
The company on Thursday posted a huge jump in average selling price for its flagship iPhone, nudging Apple to record revenue and earnings figures. But Apple said the company will stop reporting individual unit sales for the iPhone, iPad and Mac starting next quarter.
Top Wall Street analysts dissed the move. One called it a "tough pill to swallow" and another said it could fuel "fears the company has something to hide." Bank of America Merrill Lynch downgraded the stock citing increased risk.
Friday's stock plunge is a surprising stumble for Apple, which many were expecting to weather an otherwise painful earnings season for the tech sector.
Apple was down 3 percent in October, fairing better than its FAANG stock peers. Facebook shed almost 8 percent in the period; Alphabet lost almost 10 percent; Netflix slid 19.3 percent; and Amazon hemorrhaged 20 percent, making for its worst month since the 2008 financial crisis.