We do not publish a verdict for GPGI Inc (GPGI) and Mueller Industries Inc (MLI) is undervalued.
We publish an intrinsic value for MLI but not for GPGI, so the two cannot be ranked on price.
Values as of the 22 Sept 2026 close.
No Leak Score yet
Discounting its cash flows at 10.3% (average of 3 methods) values the shares at $76.07; the price of $59.90 is 21% below that value, and 72% of that value comes from beyond year five.
Leak Score 100/100 on 3 of 12 signals
| Metric | GPGI | MLI |
|---|---|---|
| Verdict | — | Undervalued |
| Price | $12.60 | $59.90 |
| Intrinsic value | — | $76.07 |
| Margin of safety | — | +21% |
| Leak Score | — | 100/100 (3/12) |
| Market cap | $3.7B | $13.2B |
| Revenue growth, 5 years | -25.5% | 11.8% |
| Operating margin | — | 21.3% |
| Net margin | — | 18.3% |
| Return on equity | -20.6% | 26.3% |
| Debt to equity | 0.00 | 0.01 |
| P/E | — | 15.6x |
| Forward P/E | 10.0x | 13.6x |
| P/B | 1.1x | 3.7x |
| Dividend yield | 0.1% | 1.1% |