Chip stocks jump on AI optimism; Dow ends at record high

Company Highlights - Moderna's stock surged after BofA Global Research raised its price target, contributing to the increase in the S&P 500 healthcare index [1] - Memory and storage technology stocks, including SanDisk, Western Digital, Seagate Technology, and Micron Technology, reached record highs, driven by renewed AI optimism following Nvidia CEO Jensen Huang's announcements at the Consumer Electronics Show [1][9] - The PHLX chip index achieved an all-time high, with an approximate gain of 8% in the first three trading sessions of 2026 [1][9] Economic Indicators - Investors are anticipating reliable economic data as the impact of a 43-day federal government shutdown diminishes, with key releases such as the Job Openings and Labor Turnover Survey (JOLTS) and December's jobs report forthcoming [4][5] - The S&P 500 is currently trading at about 22 times expected earnings, a decrease from 23 in November but still above the five-year average of 19 [5][9] - S&P Global's final composite PMI decreased to 52.7 in December from 53.0 in the previous month, while the services PMI fell to 52.5 from 52.9 [7][10] Market Performance - The Dow Jones Industrial Average approached the historic 50,000 mark, closing at 49,466.30, with a gain of 489.12 points or 1.00% [6][9] - The S&P 500 and Nasdaq Composite also saw gains, with the S&P 500 increasing by 42.92 points (0.61%) to 6,944.97 and the Nasdaq Composite rising by 147.40 points (0.63%) to 23,543.22 [6][9]