CSX Corp (CSX) is overvalued and Greenbrier Cos. Inc (GBX) is undervalued.
Against our estimates of intrinsic value, GBX trades at the wider discount: a margin of safety of +42%, against -94% for CSX.
Values as of the 22 Sept 2026 close.
Discounting its cash flows at 10.3% (average of 3 methods) values the shares at $24.06; the price of $46.59 is 94% above that value, and 71% of that value comes from beyond year five.
Leak Score 31/100 on 10 of 12 signals
Discounting its cash flows at 20.8% (average of 3 methods) values the shares at $74.56; the price of $43.04 is 42% below that value, and 44% of that value comes from beyond year five.
Leak Score 60/100 on 9 of 12 signals
| Metric | CSX | GBX |
|---|---|---|
| Verdict | Overvalued | Undervalued |
| Price | $46.59 | $43.04 |
| Intrinsic value | $24.06 | $74.56 |
| Margin of safety | -94% | +42% |
| Leak Score | 31/100 (10/12) | 60/100 (9/12) |
| Market cap | $86.3B | $1.3B |
| Revenue growth, 5 years | 5.9% | 3.0% |
| Operating margin | 35.3% | 5.7% |
| Net margin | 22.2% | 4.1% |
| Return on equity | 24.4% | 7.0% |
| Debt to equity | 1.37 | 1.19 |
| P/E | 26.9x | 12.7x |
| Forward P/E | 20.5x | 11.0x |
| P/B | 6.1x | 0.8x |
| Dividend yield | 1.2% | 3.1% |