CTSO vs WIA: Correlation
Cytosorbents Corporation (CTSO) and Western Asset Inflation-Linked Income Fund (WIA) show a moderate relationship: their 3-year correlation of weekly returns is 0.31.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTSO and WIA?
Over the past 3 years, CTSO and WIA moved with a correlation of 0.31, which is moderate. The relationship has been stable: the 1-year correlation (0.25) sits close to the 3-year figure. Over 5 years the correlation is 0.25, and the annualized covariance of weekly returns is 171.8 %².
Within CTSO's tracked universe of 10 assets, WIA comes in at #5 by 3-year correlation. The last year tells two different stories: WIA led by 65.5 percentage points, -63.4% for CTSO against +2.1% for WIA. One caveat on sizing: CTSO is 10.5 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.
CTSO vs WIA: side by side
| CTSO (Cytosorbents Corporation) | WIA (Western Asset Inflation-Linked Income Fund) | |
|---|---|---|
| 1-year return | -63.4% | +2.1% |
| 5-year return | -96.4% | -3.9% |
| Volatility (ann.) | 75.9% | 7.2% |
| Beta vs S&P 500 | 0.98 | 0.20 |
| Max drawdown (3Y) | -87.9% | -6.4% |
| Market cap | – | $0.2B |
| P/E (trailing) | – | 14.0 |
| Dividend yield | 0.00% | 7.83% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CTSO | WIA |
|---|---|---|
| 2022 | -63.0% | -25.8% |
| 2023 | -28.4% | +5.0% |
| 2024 | -18.0% | +6.1% |
| 2025 | -29.8% | +11.4% |
| 2026 | -46.7% | +1.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTSO and WIA good diversifiers for each other?
A fair diversifier. At 0.31, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between CTSO and WIA?
The CTSO/WIA correlation stands at 0.31 on a 3-year window (1 year: 0.25, 5 years: 0.25), computed from weekly returns as of 2026-08-27.
Is WIA a good diversifier for CTSO?
A fair diversifier. At 0.31, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.31 mean?
A reading of 0.31 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/ctso-vs-wia.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ctso-vs-wia/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CTSO correlations · WIA correlations
