ACH vs WD: Correlation
How closely do Accendra Health, Inc. (ACH) and Walker & Dunlop, Inc (WD) trade together? Their weekly returns over three years give a correlation of 0.43, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACH and WD?
On 3 years of weekly data the ACH/WD correlation comes out at 0.43, moderate. Little has changed lately, as the 1-year reading of 0.43 lands near the 3-year figure. The 5-year figure is 0.42, and annualized covariance runs at 1470.2 %².
WD is one of the assets that tracks ACH most closely: it ranks #3 out of the 16 assets we track against ACH. Their recent paths diverged sharply: over the last 12 months WD outperformed by 24.3 percentage points (-75.3% for ACH against -51.0% for WD). One caveat on sizing: ACH is 2.3 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.
ACH vs WD: side by side
| ACH (Accendra Health, Inc.) | WD (Walker & Dunlop, Inc) | |
|---|---|---|
| 1-year return | -75.3% | -51.0% |
| 5-year return | -96.8% | -53.5% |
| Volatility (ann.) | 89.1% | 38.5% |
| Beta vs S&P 500 | 1.37 | 1.12 |
| Max drawdown (3Y) | -96.6% | -63.4% |
| Market cap | $0.1B | $1.4B |
| P/E (trailing) | – | 36.0 |
| Dividend yield | 0.00% | 6.70% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ACH | WD |
|---|---|---|
| 2022 | -55.1% | -46.8% |
| 2023 | -1.3% | +46.0% |
| 2024 | -32.2% | -10.1% |
| 2025 | -78.6% | -35.9% |
| 2026 | -56.8% | -29.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACH and WD good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between ACH and WD?
Using weekly returns as of 2026-08-27: 0.43 over 3 years, with 0.43 over the last year and 0.42 over 5 years.
Is WD a good diversifier for ACH?
Yes, to a useful degree: a correlation of 0.43 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.43 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/ach-vs-wd.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ach-vs-wd/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ACH correlations · WD correlations
