Allegion plc (ALLE) is slightly overvalued and NAPCO Security Technologies Inc (NSSC) is overvalued.
Both trade above our estimate of their intrinsic value. ALLE is the closer of the two: -9%, against -53% for NSSC.
Values as of the 22 Sept 2026 close.
Discounting its cash flows at 8.8% (average of 3 methods) values the shares at $141.63; the price of $153.95 is 9% above that value, and 77% of that value comes from beyond year five.
Leak Score 59/100 on 3 of 12 signals
Discounting its cash flows at 11.7% (average of 3 methods) values the shares at $23.41; the price of $35.88 is 53% above that value, and 68% of that value comes from beyond year five.
Leak Score 76/100 on 9 of 12 signals
| Metric | ALLE | NSSC |
|---|---|---|
| Verdict | Slightly overvalued | Overvalued |
| Price | $153.95 | $35.88 |
| Intrinsic value | $141.63 | $23.41 |
| Margin of safety | -9% | -53% |
| Leak Score | 59/100 (3/12) | 76/100 (9/12) |
| Market cap | $13.1B | $1.3B |
| Revenue growth, 5 years | 8.4% | 12.2% |
| Operating margin | 20.8% | 30.5% |
| Net margin | 15.4% | 21.3% |
| Return on equity | 33.7% | 23.9% |
| Debt to equity | 1.05 | 0.03 |
| P/E | 20.2x | 29.9x |
| Forward P/E | 15.7x | 19.6x |
| P/B | 6.2x | 6.7x |
| Dividend yield | 1.4% | 1.7% |