HUM vs MRTN: Correlation
Humana (HUM) and Marten Transport, Ltd. (MRTN) show a moderate relationship: their 3-year correlation of weekly returns is 0.34.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are HUM and MRTN?
Over the past 3 years, HUM and MRTN moved with a correlation of 0.34, which is moderate. Little has changed lately, as the 1-year reading of 0.39 lands near the 3-year figure. Over 5 years the correlation is 0.23, and the annualized covariance of weekly returns is 426.9 %².
By 3-year correlation, MRTN places #14 of the 30 assets tracked against HUM. On 12-month performance HUM holds a 10.6-point edge, +34.0% against +23.4%. Note the risk asymmetry: HUM runs 1.5 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.
HUM vs MRTN: side by side
| HUM (Humana) | MRTN (Marten Transport, Ltd.) | |
|---|---|---|
| 1-year return | +34.0% | +23.4% |
| 5-year return | +1.8% | -1.0% |
| Volatility (ann.) | 43.3% | 28.6% |
| Beta vs S&P 500 | 0.52 | 0.78 |
| Max drawdown (3Y) | -67.9% | -54.8% |
| Market cap | $47.1B | $1.2B |
| P/E (trailing) | 36.9 | 96.4 |
| Dividend yield | 0.91% | 1.66% |
| Sector / category | Health Care | US Listed |
Year-by-year returns
| Year | HUM | MRTN |
|---|---|---|
| 2022 | +11.2% | +16.7% |
| 2023 | -9.9% | +7.3% |
| 2024 | -44.0% | -24.6% |
| 2025 | +2.4% | -25.7% |
| 2026 | +54.4% | +28.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are HUM and MRTN good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between HUM and MRTN?
As of 2026-08-27, the correlation of weekly returns between HUM and MRTN is 0.34 over 3 years, 0.39 over 1 year and 0.23 over 5 years.
Is MRTN a good diversifier for HUM?
Yes, to a useful degree: a correlation of 0.34 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.34 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/hum-vs-mrtn.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/hum-vs-mrtn/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: HUM correlations · MRTN correlations
