NSC vs SER: Correlation
Norfolk Southern (NSC) and Serina Therapeutics, Inc. (SER) show a negative relationship: their 3-year correlation of weekly returns is -0.17.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are NSC and SER?
Over the past 3 years, NSC and SER moved with a correlation of -0.17, which is negative, meaning they tend to move in opposite directions. The relationship has been stable: the 1-year correlation (-0.22) sits close to the 3-year figure. Over 5 years the correlation is -0.05, and the annualized covariance of weekly returns is -368.9 %².
Among the 32 assets we track against NSC, SER ranks #27 by 3-year correlation. The last year tells two different stories: NSC led by 79.5 percentage points, +30.0% for NSC against -49.5% for SER. Note the risk asymmetry: SER runs 4.5 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
NSC vs SER: side by side
| NSC (Norfolk Southern) | SER (Serina Therapeutics, Inc.) | |
|---|---|---|
| 1-year return | +30.0% | -49.5% |
| 5-year return | +49.6% | -93.1% |
| Volatility (ann.) | 22.0% | 98.4% |
| Beta vs S&P 500 | 0.69 | -0.30 |
| Max drawdown (3Y) | -25.1% | -95.5% |
| Market cap | $78.1B | $0.1B |
| P/E (trailing) | 30.1 | – |
| Dividend yield | 1.53% | 0.00% |
| Sector / category | Industrials | US Listed |
Year-by-year returns
| Year | NSC | SER |
|---|---|---|
| 2022 | -15.6% | -49.4% |
| 2023 | -1.6% | -30.3% |
| 2024 | +1.6% | -63.6% |
| 2025 | +25.6% | -61.8% |
| 2026 | +22.0% | +31.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are NSC and SER good diversifiers for each other?
By historical standards, yes. A correlation of -0.17 means the two rarely move for the same reasons.
FAQ
What is the correlation between NSC and SER?
As of 2026-08-27, the correlation of weekly returns between NSC and SER is -0.17 over 3 years, -0.22 over 1 year and -0.05 over 5 years.
Is SER a good diversifier for NSC?
By historical standards, yes. A correlation of -0.17 means the two rarely move for the same reasons.
What does a correlation of -0.17 mean?
On the −1 to +1 scale, -0.17 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Related comparisons
Hubs: NSC correlations · SER correlations
