Dow Jumps Over 400 Points; US Services Activity Falls In December

Market Performance - U.S. stocks experienced an upward trend, with the Dow Jones increasing by over 400 points, up 0.86% to 49,397.20, while the NASDAQ rose 0.45% to 23,500.32 and the S&P 500 gained 0.48% to 6,934.99 [1] - European shares also saw gains, with the eurozone's STOXX 600 up 0.62%, Spain's IBEX 35 Index rising 0.49%, London's FTSE 100 increasing by 1.15%, Germany's DAX gaining 0.25%, and France's CAC 40 up 0.28% [6] - Asian markets closed mostly higher, with Japan's Nikkei 225 gaining 1.32%, Hong Kong's Hang Seng Index up 1.38%, China's Shanghai Composite surging 1.50%, while India's BSE Sensex fell by 0.44% [7] Sector Performance - Health care shares increased by 2% on Tuesday, indicating a strong performance in this sector [1] - Energy stocks, however, dipped by 1.2%, reflecting a decline in this sector [1] Company News - Alumis Inc. shares surged 132% to $19.30 after positive Phase 3 trial results for envudeucitinib in plaque psoriasis [8] - Aeva Technologies Inc. saw a 25% increase in shares to $16.30 following the selection of its LiDAR technology for NVIDIA's autonomous vehicle platform [8] - Cyclerion Therapeutics Inc. shares rose by 47% to $2.04 due to an expanded collaboration with Medsteer [8] - Instil Bio Inc. shares dropped 51% to $6.05 after discontinuing clinical development of AXN-2510 [8] - MOBIX LABS, INC. shares fell 45% to $0.18 after pricing a $6 million offering of common stock [8] - AngioDynamics, Inc. shares decreased by 15% to $11.22 following disappointing second-quarter results [8] Economic Indicators - The S&P Global services PMI declined to 52.5 in December from 54.1 in the previous month, lower than the preliminary reading of 52.9 [2][10] - The S&P Global composite PMI fell to 52.7 in December, marking the lowest level in eight months, down from 54.2 in the previous month [10]