ARR vs CALC: Correlation
ARMOUR Residential REIT, Inc. (ARR) and CalciMedica, Inc. (CALC) show a weak relationship: their 3-year correlation of weekly returns is 0.26.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ARR and CALC?
On 3 years of weekly data the ARR/CALC correlation comes out at 0.26, weak. Little has changed lately, as the 1-year reading of 0.35 lands near the 3-year figure. The 5-year figure is n/a, and annualized covariance runs at 872.2 %².
CALC is close to the least connected end of ARR's tracked universe, ranking #10 of 13. The last year tells two different stories: ARR led by 112.8 percentage points, +29.0% for ARR against -83.8% for CALC. One caveat on sizing: CALC is 4.0 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
ARR vs CALC: side by side
| ARR (ARMOUR Residential REIT, Inc.) | CALC (CalciMedica, Inc.) | |
|---|---|---|
| 1-year return | +29.0% | -83.8% |
| 5-year return | -29.0% | n/a |
| Volatility (ann.) | 29.0% | 115.7% |
| Beta vs S&P 500 | 0.93 | 0.26 |
| Max drawdown (3Y) | -44.3% | -93.7% |
| Market cap | $2.3B | – |
| P/E (trailing) | 3.7 | – |
| Dividend yield | 17.76% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ARR | CALC |
|---|---|---|
| 2022 | -32.0% | – |
| 2023 | -15.4% | – |
| 2024 | +13.2% | +23.8% |
| 2025 | +11.7% | +86.2% |
| 2026 | +3.6% | -92.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ARR and CALC good diversifiers for each other?
A fair diversifier. At 0.26, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between ARR and CALC?
As of 2026-08-27, the correlation of weekly returns between ARR and CALC is 0.26 over 3 years, 0.35 over 1 year and n/a over 5 years.
Is CALC a good diversifier for ARR?
A fair diversifier. At 0.26, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.26 mean?
On the −1 to +1 scale, 0.26 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/arr-vs-calc.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/arr-vs-calc/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: ARR correlations · CALC correlations
