Broadcom's stock has rallied, reportedly due to an expanded partnership with Apple, with some outlets citing a 6% increase and others a 5% gain. The deal is said to be a 5-year chip agreement worth over $30 billion, although details about the terms and implications are not consistent across reports. Other tech companies, including AMD and Intel, have also seen stock movements, with AMD gaining 10% and Intel rising, although the extent of the increase varies.