As of January 2026 Construcciones y Auxiliar de Ferrocarriles has a market cap of HK$18.45 Billion. This makes Construcciones y Auxiliar de Ferrocarriles the world's 4428th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.