UDR vs VMRK: Correlation
UDR, Inc. (UDR) and Vivmark Residential (VMRK) show a very strong relationship: their 3-year correlation of weekly returns is 0.91.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are UDR and VMRK?
Over the past 3 years, UDR and VMRK moved with a correlation of 0.91, which is very strong, meaning they move nearly in lockstep. Recent behaviour matches the longer record: 0.88 over 1 year against 0.91 over 3. Over 5 years the correlation is 0.92, and the annualized covariance of weekly returns is 376.6 %².
Few assets follow UDR as closely as VMRK, which ranks #1 of 32 tracked partners. Over the last 12 months VMRK came out ahead by 5.7 percentage points (-0.6% against +5.1%). The rolling one-year correlation stayed in a tight band between 0.85 and 0.94 over the past three years, which points to a structural rather than episodic relationship.
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.
UDR vs VMRK: side by side
| UDR (UDR, Inc.) | VMRK (Vivmark Residential) | |
|---|---|---|
| 1-year return | -0.6% | +5.1% |
| 5-year return | -15.5% | -5.5% |
| Volatility (ann.) | 21.1% | 19.7% |
| Beta vs S&P 500 | 0.54 | 0.57 |
| Max drawdown (3Y) | -24.9% | -21.2% |
| Market cap | $13.6B | $26.1B |
| P/E (trailing) | 23.9 | 25.7 |
| Dividend yield | 4.56% | 0.00% |
| Sector / category | Real Estate | Real Estate |
Year-by-year returns
| Year | UDR | VMRK |
|---|---|---|
| 2022 | -33.4% | -32.5% |
| 2023 | +3.1% | +8.3% |
| 2024 | +18.3% | +20.8% |
| 2025 | -11.8% | -8.6% |
| 2026 | +4.3% | +7.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are UDR and VMRK good diversifiers for each other?
No: a correlation of 0.91 means UDR and VMRK tend to fall together, which is precisely when diversification is supposed to help.
FAQ
What is the correlation between UDR and VMRK?
The UDR/VMRK correlation stands at 0.91 on a 3-year window (1 year: 0.88, 5 years: 0.92), computed from weekly returns as of 2026-08-27.
Is VMRK a good diversifier for UDR?
No: a correlation of 0.91 means UDR and VMRK tend to fall together, which is precisely when diversification is supposed to help.
What does a correlation of 0.91 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/udr-vs-vmrk.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/udr-vs-vmrk/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: UDR correlations · VMRK correlations
