TransDigm Group Incorporated (TDG) P/E Ratio History
Historical price-to-earnings valuation from 2006 to 2026
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TDG Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 8, 2026, TransDigm Group Incorporated (TDG) trades at a price-to-earnings ratio of 38.7x, with a stock price of $1242.08 and trailing twelve-month earnings per share of $33.80.
The current P/E is 30% below its 5-year average of 55.3x. Over the past five years, TDG's P/E has ranged from a low of 38.3x to a high of 200.0x, placing the current valuation at the 5th percentile of its historical range.
Compared to the Industrials sector median P/E of 25.5x, TDG trades at a 52% premium to its sector peers. The sector includes 413 companies with P/E ratios ranging from 0.0x to 185.3x.
The PEG ratio of 1.24 (P/E divided by 25% EPS growth) suggests a fair valuation relative to its earnings growth. Peter Lynch popularized the rule that a PEG below 1.0 indicates an attractive entry point.
Relative to the broader market, TDG commands a significant premium over the S&P 500 median P/E of 25.1x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our TDG DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
TDG P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $24B | 59.1 | 3.60 | +34% | |
| $22B | 51.6 | 3.69 | +20% | |
| $27B | 56.2 | 2.58 | +22% | |
| $11B | 438.5 | - | +18% | |
| $11B | 40.2 | 3.20 | +29% | |
| $3B | 21.7Lowest | 0.16Best | +26% | |
| $5B | 336.4 | - | -73% | |
| $5B | 79.1 | - | +48% | |
| $182B | 93.2 | - | +114%Best |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
TDG Historical P/E Data (2006–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q1 | Sat Dec 27 2025 00:00:00 GM | $1309.24 | $31.08 | 42.1x | +17% |
| FY2025 Q4 | $1318.02 | $32.08 | 41.1x | +14% | |
| FY2025 Q3 | Sat Jun 28 2025 00:00:00 GM | $1499.17 | $30.12 | 49.8x | +38% |
| FY2025 Q2 | Sat Mar 29 2025 00:00:00 GM | $1377.20 | $29.62 | 46.5x | +29% |
| FY2025 Q1 | Sat Dec 28 2024 00:00:00 GM | $1290.90 | $28.34 | 45.5x | +26% |
| FY2024 Q4 | Mon Sep 30 2024 00:00:00 GM | $1427.13 | $25.60 | 55.8x | +55% |
| FY2024 Q3 | Sat Jun 29 2024 00:00:00 GM | $1277.61 | $27.03 | 47.3x | +31% |
| FY2024 Q2 | Sat Mar 30 2024 00:00:00 GM | $1231.60 | $25.20 | 48.9x | +36% |
| FY2024 Q1 | Sat Dec 30 2023 00:00:00 GM | $1011.60 | $23.56 | 42.9x | +19% |
| FY2023 Q4 | Sat Sep 30 2023 00:00:00 GM | $843.13 | $22.01 | 38.3x | +6% |
| FY2023 Q3 | Sat Jul 01 2023 00:00:00 GM | $894.17 | $18.77 | 47.6x | +32% |
| FY2023 Q2 | Sat Apr 01 2023 00:00:00 GM | $737.05 | $16.73 | 44.0x | +22% |
Average P/E for displayed period: 36.0x
Full TDG Stock Analysis
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Start ComparisonTDG — Frequently Asked Questions
Quick answers to the most common questions about buying TDG stock.
Is TDG stock overvalued or undervalued?
TDG trades at 38.7x P/E, below its 5-year average of 55.3x. At the 5th percentile of historical range, the stock is priced at a discount to its own history.
How does TDG's valuation compare to peers?
TransDigm Group Incorporated P/E of 38.7x compares to sector median of 25.5x. The premium reflects expected growth above peers.
What is TDG's PEG ratio?
TDG PEG ratio is 1.24. Between 1-2 suggests valuation aligns with growth. Historical P/E data spans 2006-2026.