Amcor Plc (AMCR) is slightly undervalued and Sonoco Products Co (SON) is undervalued.
Against our estimates of intrinsic value, SON trades at the wider discount: a margin of safety of +48%, against +13% for AMCR.
Values as of the 22 Sept 2026 close.
Discounting its cash flows at 7.1% (average of 3 methods) values the shares at $49.91; the price of $43.24 is 13% below that value, and 83% of that value comes from beyond year five.
Leak Score 30/100 on 2 of 12 signals
Discounting its cash flows at 6.5% (average of 3 methods) values the shares at $97.75; the price of $50.69 is 48% below that value, and 85% of that value comes from beyond year five.
Leak Score 86/100 on 3 of 12 signals
| Metric | AMCR | SON |
|---|---|---|
| Verdict | Slightly undervalued | Undervalued |
| Price | $43.24 | $50.69 |
| Intrinsic value | $49.91 | $97.75 |
| Margin of safety | +13% | +48% |
| Leak Score | 30/100 (2/12) | 86/100 (3/12) |
| Market cap | $20.0B | $5.0B |
| Revenue growth, 5 years | 12.8% | 7.5% |
| Operating margin | 8.6% | 10.0% |
| Net margin | 4.7% | 8.7% |
| Return on equity | 9.4% | 18.9% |
| Debt to equity | 1.28 | 1.33 |
| P/E | 18.1x | 7.8x |
| Forward P/E | — | 8.0x |
| P/B | 1.7x | 1.4x |
| Dividend yield | 6.0% | 4.2% |