EYE vs SID Comparison

National Vision Holdings Inc. is an optical retailer in the United States. Its product portfolio includes eyeglasses, sunglasses, contact lenses, accessories, and other related products. The company operates through a single operating segment. The Owned and Host segment includes the company-owned brands America's Best and Eyeglass World. In America's Best stores, vision care services are provided by optometrists or by independent professional corporations. The Host segment consists of Military and Fred Meyer locations, where eye exams are provided by independent optometrists.

Companhia Siderurgica Nacional is an integrated steel producer. together with its subsidiaries operates in five main business segments: Steel industry: production and marketing of flat and long steels; Mining: extraction, processing and marketing of iron ore, tin, limestone and dolomite; Cement: production and commercialization of bagged and bulk cement, in addition to aggregates, concrete, and other related products; Energy: generation and sale of energy from almost all renewable sources; and Logistics: participations port concessions and fleets of road transport vehicles. The group generates the majority of its revenue from the Steel industry segment. Geographically, it derives a majority of revenue from Asia.