Entergy Corp (ETR) is overvalued and National Grid Plc ADR (NGG) is overvalued.
Both trade above our estimate of their intrinsic value. NGG is the closer of the two: -21%, against -33% for ETR.
Values as of the 22 Sept 2026 close.
Discounting its cash flows at 7.0% (average of 2 methods) values the shares at $76.04; the price of $101.16 is 33% above that value.
Leak Score 40/100 on 10 of 12 signals
Discounting its cash flows at 7.3% (average of 3 methods) values the shares at $63.55; the price of $76.86 is 21% above that value, and 82% of that value comes from beyond year five.
Leak Score 14/100 on 3 of 12 signals
| Metric | ETR | NGG |
|---|---|---|
| Verdict | Overvalued | Overvalued |
| Price | $101.16 | $76.86 |
| Intrinsic value | $76.04 | $63.55 |
| Margin of safety | -33% | -21% |
| Leak Score | 40/100 (10/12) | 14/100 (3/12) |
| Market cap | $48.3B | $77.3B |
| Revenue growth, 5 years | 5.4% | 5.8% |
| Operating margin | 22.2% | 28.5% |
| Net margin | 13.3% | 18.3% |
| Return on equity | 10.4% | 8.6% |
| Debt to equity | 1.88 | 1.19 |
| P/E | 25.9x | 17.6x |
| Forward P/E | 19.8x | 11.7x |
| P/B | 2.6x | 1.5x |
| Dividend yield | 2.5% | 4.3% |