ALDX vs ARR: Correlation
How closely do Aldeyra Therapeutics, Inc. (ALDX) and ARMOUR Residential REIT, Inc. (ARR) trade together? Their weekly returns over three years give a correlation of 0.52, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ALDX and ARR?
Across a 3-year window, the weekly returns of ALDX and ARR correlate at 0.52, moderate. Lately the two have drifted apart, with the 1-year correlation at 0.40 versus 0.52 over 3 years. Stretching to 5 years gives 0.39, with an annualized covariance of 1616.4 %².
Among the 13 assets we track against ALDX, ARR ranks #4 by 3-year correlation. Correlation aside, the last 12 months split them widely, with ARR ahead by 102.7 points (-73.7% versus +29.0%). One caveat on sizing: ALDX is 3.7 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.
ALDX vs ARR: side by side
| ALDX (Aldeyra Therapeutics, Inc.) | ARR (ARMOUR Residential REIT, Inc.) | |
|---|---|---|
| 1-year return | -73.7% | +29.0% |
| 5-year return | -83.1% | -29.0% |
| Volatility (ann.) | 107.4% | 29.0% |
| Beta vs S&P 500 | 3.13 | 0.93 |
| Max drawdown (3Y) | -83.8% | -44.3% |
| Market cap | $0.1B | $2.3B |
| P/E (trailing) | – | 3.7 |
| Dividend yield | 0.00% | 17.76% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ALDX | ARR |
|---|---|---|
| 2022 | +74.0% | -32.0% |
| 2023 | -49.6% | -15.4% |
| 2024 | +42.2% | +13.2% |
| 2025 | +3.8% | +11.7% |
| 2026 | -70.3% | +3.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ALDX and ARR good diversifiers for each other?
Somewhat, no more. With 0.52 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between ALDX and ARR?
Using weekly returns as of 2026-08-27: 0.52 over 3 years, with 0.40 over the last year and 0.39 over 5 years.
Is ARR a good diversifier for ALDX?
Somewhat, no more. With 0.52 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.52 mean?
A reading of 0.52 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/aldx-vs-arr.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/aldx-vs-arr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ALDX correlations · ARR correlations
