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TransDigm Group Incorporated (TDG), headquartered in Cleveland, Ohio, designs, manufactures, and markets aircraft components and systems. Valued at $74.8 billion by market cap, the company provides mechanical and electromechanical actuators, power and control systems, engineered latching devices, cockpit and cabin systems, safety restraints, and testing equipment.
Shares of this aerospace giant have underperformed the broader market over the past year. TDG has gained 12.3% over this time frame, while the broader S&P 500 Index ($SPX) has rallied nearly 17.5%. However, in 2025, TDG stock is up 5.2%, surpassing the SPX’s 1.3% rise on a YTD basis.