Listed Optical Communications and Cloud Stocks Fall as Five Health Care Stocks Rise

U.S. optical communications and cloud computing shares fell in an Oct. 20 market snapshot, while five listed health care stocks gained, showing a split among the companies in those groups.

Applied Optoelectronics fell 5.06%, Coherent dropped 3.67% and Lumentum declined 2.77%. Ciena lost 2.07%, Corning fell 2.02%, Marvell Technology slipped 1.75% and Broadcom edged down 0.25%.

The listed cloud computing stocks also declined. IREN fell 4.22%, Nebius lost 3.16%, CoreWeave declined 2.78%, Applied Digital dropped 2.52% and Oracle fell 1.18%.

Among the six listed health care stocks, five gained and Merck was unchanged. Eli Lilly gained 2.21%, AbbVie rose 1.35%, Johnson & Johnson added 1.15%, Novo Nordisk climbed 1.09% and Moderna gained 0.73%. Merck was unchanged.