Apple Inc. (AAPL) stock fell to its lowest price since December 2011 today following a report from Cirrus Logic, a producer of chips used in the iPhone and iPad, that it was dealing with an inventory surplus.
Cirrus Logic said one of its customers is moving to a newer component causing the slowdown, The Associated Press reports. It did not specify which customer made the switch, but Apple is reportedly its biggest customer.
Investors took this as a sign that iPhone and iPad sales might have fallen short of expectations. Apple's prices fell about 6 percent, and the market closed with Apple stock at $402.80, down $23.44. At one point, the stock had slipped below $400.
Apple stocks have fluctuated in the past few months, hitting an all-time record of above $700 in September due to pent-up demand for the iPhone 5.
It is worth noting T-Mobile just began selling the iPhone 5 on April 12, to reportedly strong sales. Apple is scheduled to announce Q2 2013 earnings on Tuesday.