Westinghouse Air Brake Technologies Corp.

Westinghouse Air Brake Technologies Corp., doing business as Wabtec Corp., is an American industrial technology company that designs, manufactures, and services locomotives, rail equipment, digital intelligence systems, and transit components for the global freight rail and passenger transit industries, generating $11.17 billion in revenue in fiscal 2025. Founded by George Westinghouse in 1869 with the invention of the air brake, the company has grown through a succession of transformative acquisitions — most notably the 1999 merger with MotivePower Industries, the 2017 acquisition of Faiveley Transport, and the 2019 merger with GE Transportation — into a vertically integrated rail technology platform with approximately 31,000 employees, operations in over 50 countries, and an installed base of nearly 24,600 locomotives.

This is a story about a business that has built one of the most durable competitive positions in industrial America: a locomotive franchise with a captive, high-margin aftermarket that generates roughly 60% of revenue from recurring parts and services. The installed base is both the moat and the growth engine — every locomotive Wabtec sells creates decades of parts, overhauls, modernizations, and digital services revenue. The question the file turns on is whether the current international growth cycle, the emerging EVO modernization opportunity, and the company's acquisition program can sustain mid-teens earnings growth at a valuation that already prices a great deal of success.

The 2019 GE Transportation merger transformed Wabtec from a components supplier into the dominant North American locomotive manufacturer, roughly tripling revenue overnight. The integration proved harder than expected — the pandemic struck within a year, and the balance sheet carried over $4 billion in debt — but management has since de-levered steadily, expanded margins, and built a record multiyear backlog above $30 billion. The question now is not whether Wabtec is a good business, but what the market is already paying for that quality and what has to go right for the stock to work from here.