Amcor vs Smurfit Westrock
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KIRA’s take AI analyst
I put Amcor and Smurfit Westrock side by side, using each one’s latest annual report. Here is what stands out:
- Smurfit Westrock is the larger business, with $31.2B of revenue in fiscal 2025 against $23.5B for Amcor.
- Amcor grew revenue faster (56.6%, against 47.7%).
- Amcor kept more of each dollar of sales as operating profit (8.1% operating margin, against 5.5%).
- Amcor turned more of its sales into free cash flow (5.2% FCF margin, against 3.9%).
- Amcor earned a higher return on the capital invested in it (6.6%, against 4.1%).
Who comes out ahead
Of the 10 measures where higher (or lower) is clearly better, how many each company leads.
Amcor
AMCR
8/10
Revenue growthGross marginOperating marginNet marginFCF marginReturn on capitalReturn on equityPiotroski F-score
Smurfit Westrock
SW
2/10
Net debt / EBITDAShare count change
Side by side
Best in the row
| Latest fiscal year | AMCR FY26 | SW FY25 |
|---|---|---|
| Size | ||
| Market cap | $21.4B | $22.2B |
| Revenue | $23.5B | $31.2B |
| Free cash flow | $1.2B | $1.2B |
| Net income | $1.1B | $699M |
| Growth | ||
| Revenue growth | 56.6% | 47.7% |
| 5-year growth | 12.8% | — |
| Share count change | 45.6% | 35.2% |
| Profitability | ||
| Gross margin | 20.0% | 19.4% |
| Operating margin | 8.1% | 5.5% |
| Net margin | 4.7% | 2.2% |
| FCF margin | 5.2% | 3.9% |
| Return on capital | 6.6% | 4.1% |
| Return on equity | 9.4% | 3.9% |
| Balance sheet | ||
| Net debt | $12.9B | $12.9B |
| Net debt / EBITDA | 3.8x | 3.0x |
| Dividends and buybacks | $1.2B | $900M |
| Valuation & quality | ||
| P/E | — | 44.5x |
| Piotroski F-score | 6 | 5 |
Ten years
Revenue
Operating margin
Free cash flow
Return on capital
Each company's latest fiscal year; fiscal years end in different months. The best value in each row is highlighted where higher (or lower) is clearly better. Not investment advice.

