Fastenal Company (FAST) vs TransDigm Group Incorporated (TDG)

A side-by-side comparison of Fastenal Company and TransDigm Group Incorporated across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 5, 2026. Differences are shown without an overall score or investment verdict.

Compare

Total return — FAST vs TDG

growth of $100 · dividends reinvested · last 10y
FAST +544.1% (+20.5%/yr)TDG +513.8% (+19.9%/yr)FAST compounded faster over this window
200400600800Start $10020182020202220242026$644$614
FAST TDG

FAST vs TDG: by the numbers

  • •TDG is the larger company ($61.12B vs $58.17B market cap).
  • •TDG trades at the lower trailing earnings multiple (33.15 vs 42.96 P/E), one valuation lens rather than an overall verdict.
  • •TDG converts more revenue to profit (21.28% vs 15.45% net margin).
  • •TDG grew revenue faster over the past five years (16.52% vs 8.96% CAGR).
  • •TDG pays the higher dividend yield (8.25% vs 1.89%).

Metrics side by side

Valuation

MetricFASTTDG
P/E ratio42.9633.15
Forward P/E39.9522.65
PEG ratio5.541.06
P/S ratio6.656.11
P/B ratio14.30N/A
EV / EBITDA29.8818.47
FCF yield1.77%3.15%

Profitability

MetricFASTTDG
Gross margin44.70%59.57%
Operating margin20.29%46.19%
Net margin15.45%21.28%
ROE33.23%N/A
ROIC30.16%16.02%

Dividends

MetricFASTTDG
Dividend yield1.89%8.25%
Payout ratio81.36%273.06%

Growth (annualized)

MetricFASTTDG
Revenue CAGR (5Y)8.96%16.52%
EPS CAGR (5Y)7.96%31.14%
FCF CAGR (5Y)2.54%16.26%
Total return CAGR (5Y)17.23%14.95%

Frequently asked

Which has the lower trailing P/E, FAST or TDG?
TDG has the lower trailing P/E: FAST trades at 42.96 and TDG at 33.15. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, FAST or TDG?
Over the past five years, TDG grew revenue faster — FAST at a 8.96% CAGR versus TDG at 16.52%.
Does FAST or TDG pay a bigger dividend?
FAST yields 1.89% and TDG yields 8.25% based on trailing dividends and the latest price.
Is FAST or TDG more profitable?
TDG runs the higher net margin — FAST at 15.45% versus TDG at 21.28%.
How have FAST and TDG total returns compared?
Over the past 10 years, FAST delivered 20.20% and TDG delivered 19.64% annualized total return. Past performance doesn't predict future results.

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 5, 2026.