InterDigital (IDCC) shares fell about 7.3% following news of an officer's proposed sale of 1,000 shares and ongoing legal battles, specifically a patent dispute with Amazon. The company's business relies heavily on patent licensing, making court rulings and policy shifts critical. Investors are closely watching the Amazon patent dispute, the upcoming dividend record date, and early-February earnings.

T-Mobile USA has increased its revolving credit facility from $7.5 billion to $10 billion and extended its maturity date to January 5, 2031, through a new credit agreement with JPMorgan Chase Bank. The agreement outlines interest rates based on benchmark rates plus margins and includes a $1.5 billion letter of credit sub-facility and a $500 million swingline loan sub-facility. T-Mobile US, the parent company, guarantees these obligations, and the agreement incorporates standard restrictions and a leverage ratio requirement.

Keysight Technologies has introduced Keysight AI Software Integrity Builder, a new software solution designed to validate and maintain AI-enabled systems for trustworthiness, especially in safety-critical environments like automotive. This solution addresses the opacity of AI decision processes and the need for regulatory compliance by providing a unified framework for dataset analysis, model validation, and real-world inference testing. It aims to empower engineering teams with the tools for continuous AI model improvement and regulatory conformance.

Western Digital (NASDAQ: WDC) stock surged 15.8% today after CNBC reported that computer memory chip prices, particularly for DRAM, are set to rise further in 2026 due to AI demand. While Western Digital does not produce DRAM, investors are betting that increasing DRAM prices could lead AI companies to seek cheaper alternatives like HDDs, benefiting Western Digital. Despite the surge, the author suggests Micron (NASDAQ: MU) presents a more compelling bargain due to its higher projected earnings growth rate.

Allegro MicroSystems (ALGM) shares rose approximately 10% after Wells Fargo added the stock to its Q1 2026 Tactical Ideas list with a $40 target, citing expected improvement in leading indicators. The company also announced two new product launches targeting SiC power designs for AI data centers and electric vehicles, further boosting investor confidence. These developments are seen as indicators that the chip supply chain's inventory overhang may be easing, alongside a broader market warming to analog chip names.

The U.S. DOT and FAA have selected Collins Aerospace's RTX and Spanish firm Indra to replace up to 612 outdated ground-based aviation radars with modern systems by June 2028. This modernization is a core part of the multi-billion-dollar "Brand New Air Traffic Control System" (BNATCS) plan, aiming to update the U.S. air traffic control infrastructure to address decades-old equipment, high maintenance costs, and concerns over flight delays and safety. The effort also includes replacing radios, voice switches, and transitioning to fiber optics, although additional funding is still needed for critical components like a common automation platform.

Jessica Ling, EVP of global advertising at American Express, discusses how Amex is redefining "premium" from a status symbol to access to cultural, travel, dining, and sports experiences, particularly for Gen Z and Millennials. She emphasizes leveraging the brand's heritage of trust and service while driving modern relevance through cultural experiences and personalization. The article also touches on the brand's integrated media strategy and preparations for AI-led commerce.

Several semiconductor stocks, including Analog Devices, Applied Materials, KLA Corporation, Monolithic Power Systems, and onsemi, surged in value, driven by a broader market rally fueled by optimism in artificial intelligence and big tech shares. This momentum was also supported by hopes for an easier monetary policy from the Federal Reserve. Analog Devices, in particular, reached a new 52-week high, demonstrating significant investor returns over the past five years.

Apple shares fell 1.8% to $262.34 following signals of the slowest App Store revenue growth in 11 quarters, according to BofA. Investors are closely monitoring Apple's services performance, especially as the company's valuation relies heavily on growth beyond hardware sales. Upcoming events include the U.S. December jobs report on January 9 and Apple’s fiscal Q1 results on January 29, which will provide further clarity on the company's financial trajectory.

Western Digital (WDC) shares surged 17%, trading above $219 after Nvidia CEO Jensen Huang's CES remarks about "context memory storage" sparked an AI-driven rally among storage and memory companies. This jump reflects investor optimism about demand for data storage tied to AI data centers, with other companies like SanDisk, Seagate Technology, and Micron also experiencing significant gains. However, analysts caution that current high prices might not be sustainable long-term, and upcoming U.S. labor data could influence market expectations and tech trades.