GLW vs MAR Comparison

Corning is a provider of glass, ceramics, and optical fiber across six distinct end markets. Corning's largest segments by revenue are display glass for TVs and optical fiber for telecom networks and data centers. It also provides cover glass for smartphones as well as filters and substrates and glass for cars, produces pharmaceutical glass, and produces polysilicon for solar panels. Corning is a US producer and is vertically integrated across its products and markets.

Marriott operates 1.8 million rooms across roughly 30 brands. At the end of 2025, luxury represented roughly 10% of total rooms, premium was 42%, select service was 46%, and midscale was 2%. Marriott, Courtyard, and Sheraton are the largest brands, while Autograph, Tribute, Moxy, Aloft, and Element are newer lifestyle brands. Managed and franchised represented 99% of total rooms as of Dec. 31, 2025. North America makes up 61% of total rooms. Managed, franchise, and incentive fees represent the vast majority of revenue and profitability for the company.