Railroads
CSX vs NSC: pairs trade
CSX (CSX) is a freight railroad serving the eastern United States. Norfolk Southern (NSC) is a freight railroad serving the eastern United States. Freight railroads tend to move together because their volumes follow the same economy, fuel costs and shipping demand. When the gap between them stretches unusually far, the model measures how far, and how long such gaps have typically taken to close.
How far apart, versus normal
Where the pair stands tonight — and the exact levels the model uses — is in the full report.
Qualification
A pair has to re-qualify on every nightly scan (stationarity and half-life tests); if it fails, it is benched and publishes nothing that night. Repeated stress at the safety-stop distance suspends it. Why pairs get benched →
Published signals
Every time the full report flagged CSX / NSC, listed 30 days after publication.
| Published | Pair | Apart vs normal (at publication) | Typical time to close (modeled) |
|---|---|---|---|
| 2026-09-10 | CSX / NSC | 4.5% further apart than normal | about 10 trading days |
These percentages measure how far the two stocks have drifted from their usual relationship with each other. They are a distance, not a return: they are not a gain, not a yield, and not a forecast of profit. Times to close are modeled. Modeled, not achieved. Hypothetical results have inherent limitations and do not represent actual trading.
How each signal resolved is published on the track record once it meets our publication bar.
New to this? What is pairs trading · Half-life explained · All explainers
See them the evening they are published
This page runs 30 days behind. The full report carries every opportunity the evening the model flags it.
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