Shares of Apple ended down 1.9 percent at USD 110.15 in heavy trading, erasing gains as it launched new products.
The company announced a new version of the Apple TV with an app store and voice-controlled remote control.
Some analysts said investors sold Apple shares because expectations were so high ahead of the event.
Among Apple's suppliers, Skyworks Solutions was down 1.5 percent at USD 86.42, Avago Technologies was down 1.5 percent at USD 127.17, while U.S.-traded shares of STMicroelectronics NV fell 6 percent to USD 7.04.
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