Want to find your lens? Five questions, no jargon — they tell you which of four reads fits how you already think.
Expensive and softening.
Trading above fair value while the fundamentals weaken — little to like right now.
Price against fair value
Free cash flow — 10-year history ($B)
What the math is really telling you. Watch whether cash flow is compounding — that, more than any single year, is what a value read hangs on.
The read — lights & verdict
- Warning:OvervaluedFair value ~$140 vs $1145 — trading 88% above what the math supports.
- Good:Price is in line with its recordPriced for ~18%/yr, roughly what it has delivered (29.9%/yr) — from a depressed FY22 base.
- Good:Revenue still growingUp 11.2% last year — demand isn't the problem.
- Good:Cash flow compoundingFree cash flow up ~29.9%/yr — the engine is growing.
- Warning:Heavy debt loadNet debt of $26B — roughly 15× annual free cash flow. This changes the risk picture.
How this was built. Every figure is computed from TransDigm Group Incorporated's SEC filings — no estimates, no AI. Two-stage DCF: 9% discount rate, 5% free-cash-flow growth for 10 years, 2.5% terminal. Free cash flow is operating cash flow less capital spending. Net cash is cash and marketable securities less borrowings, commercial paper and finance leases; operating leases are disclosed but never counted as debt. We subtract net debt from the value of the business — for TransDigm that is about $26B, or $455 per share. Fundamentals are from the FY25 annual report and change only when a new one is filed. Price of $1145.14 taken 2026-09-08 (Google Finance, manual entry, 2026-09-08) — it is not live and does not move during the day.
TickerMath is an educational tool, not investment advice — it computes one model from SEC filings and can be wrong. How we compute this →