Freight equipment and services provider The Greenbrier Companies, Inc. (GBX) recently posted better-than-estimated first-quarter performance on both top-line and bottom-line fronts. Greenbrier highlighted that amid the COVID-19 pandemic, governmental actions and economic conditions are key risks to its business. Additionally, factors such as stay-at-home regulations, vaccination or testing mandates, any site closures, labor shortages, inflation, changes in interest rates, or higher borrowing costs could also adversely affect Greenbrier’s business and financials.