CSTL vs EVV: Correlation
Castle Biosciences, Inc. (CSTL) and Eaton Vance Limited Duration Income Fund (EVV) show a moderate relationship: their 3-year correlation of weekly returns is 0.48.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CSTL and EVV?
On 3 years of weekly data the CSTL/EVV correlation comes out at 0.48, moderate. The past 12 months show a weaker link (0.25) than the 3-year average (0.48). The 5-year figure is 0.37, and annualized covariance runs at 315.6 %².
Within CSTL's tracked universe of 12 assets, EVV comes in at #4 by 3-year correlation. The last year tells two different stories: CSTL led by 57.3 percentage points, +53.8% for CSTL against -3.5% for EVV. Risk is not evenly split, since CSTL carries 6.3 times the volatility of the other side.
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.
CSTL vs EVV: side by side
| CSTL (Castle Biosciences, Inc.) | EVV (Eaton Vance Limited Duration Income Fund) | |
|---|---|---|
| 1-year return | +53.8% | -3.5% |
| 5-year return | -54.0% | +11.4% |
| Volatility (ann.) | 64.2% | 10.2% |
| Beta vs S&P 500 | 0.79 | 0.41 |
| Max drawdown (3Y) | -57.8% | -9.5% |
| Market cap | $1.0B | – |
| P/E (trailing) | – | 14.7 |
| Dividend yield | 0.00% | 9.65% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CSTL | EVV |
|---|---|---|
| 2022 | -45.1% | -19.9% |
| 2023 | -8.3% | +13.3% |
| 2024 | +23.5% | +12.2% |
| 2025 | +46.0% | +10.7% |
| 2026 | -11.9% | -2.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CSTL and EVV good diversifiers for each other?
Reasonably. At 0.48, CSTL and EVV keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CSTL and EVV?
Using weekly returns as of 2026-08-27: 0.48 over 3 years, with 0.25 over the last year and 0.37 over 5 years.
Is EVV a good diversifier for CSTL?
Reasonably. At 0.48, CSTL and EVV keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.48 mean?
On the −1 to +1 scale, 0.48 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/cstl-vs-evv.json
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Related comparisons
Hubs: CSTL correlations · EVV correlations
