Citigroup gets negative on chip stocks citing weak iPhone demand By: CNBC.com News November 12, 2018 at 08:12 AM EST Semiconductor producer Skyworks Solutions was downgraded at Citigroup on Monday in light of Apple's weaker-than-expected iPhone XR outlook. Read More >> Related Stocks: Applied Materials Broadcom Ltd NVIDIA Corp Skyworks Solutions iShares Trust S&P Semiconductor Index Fund