Transdigm Group Incorporated
NYSE: TDG · INDUSTRIALS · AEROSPACE & DEFENSE
Updated 2026-04-29
Transdigm Group Incorporated (TDG) Stock Valuation Analysis
Fair value estimate, historical valuation range, and quality signals for TDG.
Valued
Valuation reasonably reflects current fundamentals. Limited margin of safety at these levels.
TDG historical valuation range
Where current P/E sits in TDG's own 5Y range.
TDG intrinsic value (DCF)
DCF-based fair value estimate vs current market price.
Intrinsic value calculated using discounted cash flow (DCF) model based on projected free cash flows, discount rate, and terminal growth assumptions. A positive margin of safety indicates the current price is below estimated fair value, providing a cushion against estimation error.
TDG valuation signals
Quick-read green flags, caution flags, and risks based on current metrics.
P/E Ratio — History
Current: 37.31x
P/S Ratio — History
Current: 7.19x
Is TDG overvalued in 2026?
Transdigm Group Incorporated (TDG) currently trades at $1,142.74 per share with a market capitalization of $65,508,205,000.00. Based on our multi-factor framework, the stock trades at a fair valuation with a Smart Value Score of 53/100. This score blends growth quality, financial health, and price attractiveness into a single institutional-grade read.
The stock trades at a P/E ratio of 37.3x, below its 5-year median of 42.8x. The PEG ratio of 2.82 indicates the price has run ahead of the underlying growth rate.
Looking at its own history, TDG is currently trading cheaper than 92% of the last 5Y on P/E. This places it in the 8th percentile of its historical range, a level that has historically coincided with attractive entry points.
Our discounted cash flow model estimates TDG's intrinsic value at $826.09 per share, against the current market price of $1,142.74. This implies a premium to fair value of -60.54%. The current price sits well above what projected cash flows justify, implying investors are paying for growth that has not yet materialized.
The Piotroski F-Score of 5/9 puts financial quality in a middling range, neither a standout strength nor an obvious red flag.
Bottom line: TDG trades at a fair valuation on our framework, with a Smart Value Score of 53/100. The valuation is defensible but offers no obvious bargain. Patience or a better entry price may reward disciplined buyers.
Frequently asked questions
Is TDG overvalued in 2026?
Based on a Smart Value Score of 53/100, TDG is fairly valued. Price reasonably reflects current fundamentals with limited cushion in either direction.
What is TDG's fair value?
Our DCF model estimates TDG's intrinsic value at $826.09 per share, versus the current price of $1,142.74. This produces a margin of safety of -60.54%.
What P/E ratio does TDG trade at?
TDG trades at a P/E of 37.3x on trailing twelve-month earnings, compared to its 5-year median of 42.8x.
Is TDG a buy based on valuation?
WallStSmart does not issue buy or sell recommendations. Our Smart Value Score of 53/100 reflects the combined read on growth, quality, and price. The profile is balanced. Best suited for investors with an existing thesis.
How does TDG's valuation compare to its history?
On P/E, TDG currently sits in the 8th percentile of its own 5Y range. That is historically cheap relative to where it has traded over the period.
What is TDG's Smart Value Score?
TDG's Smart Value Score is 53/100. The Smart Value Score is a proprietary WallStSmart metric blending growth quality, financial health, and valuation attractiveness into a single 0-100 read. Scores above 75 are rare and indicate strong multi-factor alignment.