Stock Market Summary – January 15, 2026

Taiwan Semiconductor Manufacturing Co. (TSMC) saw a 35% increase in profits YoY in Q4 2025, beating estimates and seeing its stock rise over 5%. Other chip stocks like Nvidia and Broadcom also rose. The company reported strength in AI accelerated growth, altering Wall Street outlooks on companies that could benefit, including Nvidia, Broadcom, and C3.ai. TSMC’s chipmaking capabilities are essential for tech-based companies, and the demand for AI computing is expected to push TSMC’s spending to between $52b and $56b by 2026 compared to $40.9b in 2025.

Goldman Sachs reported strong Q4 performance, beating earnings per share estimates even without the gain from the sale of Apple Card business. Despite not reaching revenue estimates, the bank noted growth in investment banking and other areas. Morgan Stanley also reported exceeding earnings expectations for Q4, with wealth management sales being a highlight. Nvidia and AMD led a rally in the chip market following TSMC’s positive earnings report. TSMC, which is a major customer for Nvidia, AMD, and Broadcom, recorded a 35% YoY increase in Q4 profit, which was above estimates.

In more stock news, Boston Scientific reached an agreement to acquire Penumbra for $14.5 billion, leading to a 12% increase in Penumbra shares and a 4% drop for Boston Scientific. Eli Lilly shares fell by 4% owing to an expected delay in the FDA decision on its obesity pill. Taiwan Semiconductor Manufacturing Company likewise saw a 6% increase in stock value after a record Q4 report, resulting in a confident outlook for capital spending into 2026. Morgan Stanley shares also climbed nearly 6% following a solid Q4 earnings report.

However, Goldman Sachs experienced a mixed Q4, with shares rising more than 4%. The company saw a 3% YoY decrease in revenue to $13.45 billion, which missed consensus estimates, but EPS increased by 17.2% to $14.01 YoY, beating estimates. Despite a revenue miss, two of Goldman Sachs’ other segments generated better-than-expected revenue.