Sabre holds the number-two share of global distribution system bookings (high-30s as of Sept. 30, 2019). The global distribution system segment represented 73% of total 2018 revenue. The company also has a growing IT solutions division (27% of revenue) that focuses on the airline, hospitality, and travel agent end markets. Transaction fees, which are tied to volume and not price, account for the bulk of revenue and profits.