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TransDigm Group TDG is benefiting from healthy demand across the U.S. defense aerospace market, supported by ongoing investments in military capabilities and rising requirements for advanced aircraft and related components. The company’s products have a significant presence across defense platforms, providing exposure to both original equipment manufacturing (OEM) and aftermarket demand.
Defense revenues increased approximately 11% year over year in the third quarter of fiscal 2026, while year-to-date defense revenues rose 10%. Growth was broad-based, with both OEM and aftermarket revenues increasing. Aftermarket growth was slightly ahead of OEM growth, reflecting continued demand for replacement parts and services across military aircraft.
Defense bookings also increased both year over year and sequentially during the quarter and exceeded sales. Strong bookings should support future revenue growth, while the company’s defense backlog provides additional visibility as it completes fiscal 2026 and enters fiscal 2027.
Management expects defense revenue growth to continue through fiscal 2026, supported by demand across its OEM and aftermarket businesses. The company’s portfolio of highly engineered aerospace components and significant aftermarket exposure should allow it to benefit from sustained aircraft utilization and ongoing fleet modernization.
With defense demand remaining healthy, bookings exceeding sales and a strong backlog supporting future activity, TransDigm is well-positioned to benefit from continued investment in U.S. defense aerospace. Sustained growth across both OEM and aftermarket channels should support its defense business in the coming quarters.
Other aerospace and defense companies benefiting from strong defense demand are discussed below:
Lockheed Martin LMT: Lockheed Martin is benefiting from strong demand for fighter aircraft, missile defense systems and advanced weapons as the US and allied nations modernize their military capabilities.
RTX Corporation RTX: RTX is seeing demand across its defense businesses for missile systems, air defense, sensors and advanced propulsion. Continued modernization efforts should support growth across its defense portfolio.
Shares of TDG have lost 9.7% in the past six months compared with the industry’s 13.5% decline.

The company's shares are trading at a discount on a relative basis, with its forward 12-month Price/Sales being 5.25X compared with its industry’s average of 7.23X.

The Zacks Consensus Estimate for TDG’s 2026 and 2027 earnings has moved north over the past 60 days.

Image Source: Zacks Investment Research
TDG stock currently carries a Zacks Rank #3 (Hold).
You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.
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This article originally published on Zacks Investment Research (zacks.com).