AMS vs CCSI: Correlation
Measured on weekly returns over the past three years, American Shared Hospital Services (AMS) and Consensus Cloud Solutions, Inc. (CCSI) carry a correlation of 0.36, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are AMS and CCSI?
On 3 years of weekly data the AMS/CCSI correlation comes out at 0.36, moderate. The link has tightened recently: the 1-year correlation (0.58) runs above the 3-year figure (0.36). The 5-year figure is 0.27, and annualized covariance runs at 1095.2 %².
Few assets follow AMS as closely as CCSI, which ranks #3 of 11 tracked partners. Correlation aside, the last 12 months split them widely, with CCSI ahead by 90.1 points (-40.7% versus +49.4%).
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.
AMS vs CCSI: side by side
| AMS (American Shared Hospital Services) | CCSI (Consensus Cloud Solutions, Inc.) | |
|---|---|---|
| 1-year return | -40.7% | +49.4% |
| 5-year return | -45.7% | +11.8% |
| Volatility (ann.) | 46.6% | 66.1% |
| Beta vs S&P 500 | 0.34 | 1.27 |
| Max drawdown (3Y) | -64.2% | -63.8% |
| Market cap | – | $0.7B |
| P/E (trailing) | – | 7.8 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | AMS | CCSI |
|---|---|---|
| 2022 | +23.6% | -7.1% |
| 2023 | -18.8% | -51.2% |
| 2024 | +34.0% | -9.0% |
| 2025 | -33.9% | -8.5% |
| 2026 | -30.8% | +82.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are AMS and CCSI good diversifiers for each other?
A fair diversifier. At 0.36, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between AMS and CCSI?
As of 2026-08-27, the correlation of weekly returns between AMS and CCSI is 0.36 over 3 years, 0.58 over 1 year and 0.27 over 5 years.
Is CCSI a good diversifier for AMS?
A fair diversifier. At 0.36, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.36 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/ams-vs-ccsi.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ams-vs-ccsi/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: AMS correlations · CCSI correlations
