Shares of Greenbrier (NYSE: GBX), a leading supplier of freight rail transportation equipment, plummeted 5.38% in Thursday's pre-market trading session following the release of its fourth-quarter earnings report. The company, known for designing the industry's first double-decker railcar in the 1980s, faced significant challenges that disappointed investors.

Greenbrier reported revenues of $762.1 million for the quarter, representing an 11.7% year-over-year decline and falling short of analysts' expectations by a substantial 15.2%. This disappointing performance was further compounded by the company's full-year revenue guidance, which also missed analysts' projections. The combination of weak quarterly results and a pessimistic outlook for the future likely contributed to the sharp decline in Greenbrier's stock price.

The struggles faced by Greenbrier are not isolated, as the heavy transportation equipment sector as a whole has been experiencing difficulties. On average, companies in this sector have seen their share prices drop by 17.9% since the release of their latest earnings results. This broader industry trend, coupled with Greenbrier's individual performance issues, has created a challenging environment for the company and its investors. As the market digests this information, it remains to be seen how Greenbrier will address these challenges and attempt to regain investor confidence in the coming quarters.