GARMIN LTD vs TransDigm Group Incorporated, two Aerospace & Defense stocks. A side-by-side on valuation, growth, margins, returns, and what each price is betting.
TransDigm and Garmin both run fat margins, and both get rewarded for it. TransDigm owns proprietary aerospace components and keeps 21.91 cents of every revenue dollar, priced at 41.34 times earnings on a $77.1B cap, with cash conversion of just 2.4% because debt eats the rest. Garmin keeps even more, a 23.26% net margin on GPS and aviation electronics, but does it with no debt at all, earning 18.73% on equity at 25.96 times earnings and a $45.0B cap. TransDigm buys its margin with leverage and pays a steeper multiple. Garmin earns a comparable margin owing nobody, and the market asks less for each dollar of profit.
Comparison updated 2026-07-11.
| Metric | GRMN | TDG |
|---|---|---|
| Price | $243.10 | $1291.90 |
| Market cap | $47.1B | $75.2B |
| Sector | Aerospace & Defense | Aerospace & Defense |
| Stage | Growth | Growth |
| Implied growth (priced in) | — | +13.1% |
| P/E | 27.1 | 40.3 |
| P/B | 5.08 | — |
| P/S | 6.30 | 7.91 |
| EV/EBITDA | 22.2 | 22.2 |
| Revenue growth | +15.7% | +13.3% |
| Gross margin | 59.4% | 59.4% |
| Operating margin | 24.6% | 46.3% |
| Net margin | 23.3% | 21.9% |
| Return on equity | 18.7% | — |
| Return on assets | 15.8% | 8.2% |
| Return on invested capital | 18.3% | 15.4% |
| FCF yield | 3.1% | 2.5% |
| Dividend yield | 1.1% | — |
| Debt / equity | 0.00 | — |
| Current ratio | 4.36 | 3.52 |
| Altman Z (solvency) | 8.26 | 1.58 |
| Piotroski F (quality) | 7 / 9 | 7 / 9 |
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The stronger value is highlighted per metric where one is strictly better on that single number; it is not an overall verdict on either company. For informational and research purposes only. Not investment advice. Not a recommendation to buy, sell, or hold any security. boothcheck is not a registered investment adviser. Past performance does not guarantee future results.