ARTNA vs YORW: Correlation
Artesian Resources Corporation - Class A Non-Voting (ARTNA) and The York Water Company (YORW) show a strong relationship: their 3-year correlation of weekly returns is 0.76.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ARTNA and YORW?
Over the past 3 years, ARTNA and YORW moved with a correlation of 0.76, which is strong. Recent behaviour matches the longer record: 0.81 over 1 year against 0.76 over 3. Over 5 years the correlation is 0.68, and the annualized covariance of weekly returns is 355.2 %².
Few assets follow ARTNA as closely as YORW, which ranks #1 of 12 tracked partners. Neither side won the trailing year by much: +10.6% against +10.9%.
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.
ARTNA vs YORW: side by side
| ARTNA (Artesian Resources Corporation - Class A Non-Voting) | YORW (The York Water Company) | |
|---|---|---|
| 1-year return | +10.6% | +10.9% |
| 5-year return | +4.6% | -26.0% |
| Volatility (ann.) | 22.9% | 20.5% |
| Beta vs S&P 500 | 0.27 | 0.18 |
| Max drawdown (3Y) | -34.3% | -26.4% |
| Market cap | $0.4B | $0.5B |
| P/E (trailing) | 15.6 | 21.2 |
| Dividend yield | 3.54% | 2.64% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ARTNA | YORW |
|---|---|---|
| 2022 | +29.3% | -7.9% |
| 2023 | -27.6% | -12.4% |
| 2024 | -21.2% | -13.2% |
| 2025 | +3.8% | +0.1% |
| 2026 | +15.0% | +7.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ARTNA and YORW good diversifiers for each other?
Only partially. A correlation of 0.76 means ARTNA and YORW share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between ARTNA and YORW?
The ARTNA/YORW correlation stands at 0.76 on a 3-year window (1 year: 0.81, 5 years: 0.68), computed from weekly returns as of 2026-08-27.
Is YORW a good diversifier for ARTNA?
Only partially. A correlation of 0.76 means ARTNA and YORW share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.76 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
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Embed this badge (it refreshes with the data), with attribution:
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Related comparisons
Hubs: ARTNA correlations · YORW correlations
