AIV vs UDR: Correlation
How closely do Apartment Investment and Management Company (AIV) and UDR, Inc. (UDR) trade together? Their weekly returns over three years give a correlation of 0.63, which is strong.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AIV and UDR?
Across a 3-year window, the weekly returns of AIV and UDR correlate at 0.63, strong. The link has loosened recently: the 1-year correlation (0.51) runs below the 3-year figure (0.63). Stretching to 5 years gives 0.65, with an annualized covariance of 312.5 %².
Few assets follow AIV as closely as UDR, which ranks #3 of 10 tracked partners. On 12-month performance UDR holds a 14.3-point edge, -14.9% against -0.6%.
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.
AIV vs UDR: side by side
| AIV (Apartment Investment and Management Company) | UDR (UDR, Inc.) | |
|---|---|---|
| 1-year return | -14.9% | -0.6% |
| 5-year return | +1.3% | -15.5% |
| Volatility (ann.) | 23.7% | 21.1% |
| Beta vs S&P 500 | 0.73 | 0.54 |
| Max drawdown (3Y) | -27.9% | -24.9% |
| Market cap | $0.4B | $13.6B |
| P/E (trailing) | 22.8 | 23.9 |
| Dividend yield | 0.00% | 4.56% |
| Sector / category | US Listed | Real Estate |
Year-by-year returns
| Year | AIV | UDR |
|---|---|---|
| 2022 | -7.6% | -33.4% |
| 2023 | +10.0% | +3.1% |
| 2024 | +16.1% | +18.3% |
| 2025 | -2.2% | -11.8% |
| 2026 | -19.1% | +4.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AIV and UDR good diversifiers for each other?
Somewhat, no more. With 0.63 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between AIV and UDR?
Using weekly returns as of 2026-08-27: 0.63 over 3 years, with 0.51 over the last year and 0.65 over 5 years.
Is UDR a good diversifier for AIV?
Somewhat, no more. With 0.63 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.63 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/aiv-vs-udr.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/aiv-vs-udr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: AIV correlations · UDR correlations
