CNSY vs SPY: Correlation
Cerenome, Inc. (CNSY) and SPDR S&P 500 ETF Trust (SPY) show a weak relationship: their 3-year correlation of weekly returns is 0.21.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CNSY and SPY?
Over the past 3 years, CNSY and SPY moved with a correlation of 0.21, which is weak. Little has changed lately, as the 1-year reading of 0.18 lands near the 3-year figure. Over 5 years the correlation is 0.18, and the annualized covariance of weekly returns is 476.3 %².
SPY is close to the least connected end of CNSY's tracked universe, ranking #7 of 11. Their recent paths diverged sharply: over the last 12 months SPY outperformed by 95.3 percentage points (-74.7% for CNSY against +20.6% for SPY). Risk is not evenly split, since CNSY carries 10.7 times the volatility of the other side.
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.
CNSY vs SPY: side by side
| CNSY (Cerenome, Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -74.7% | +20.6% |
| 5-year return | -99.6% | +82.4% |
| Volatility (ann.) | 154.9% | 14.5% |
| Beta vs S&P 500 | 2.28 | 1.00 |
| Max drawdown (3Y) | -96.1% | -18.8% |
| Market cap | – | – |
| P/E (trailing) | 1.0 | – |
| Dividend yield | 0.00% | 1.01% |
| Expense ratio | – | 0.09% |
| Assets under management | – | $795.3B |
| Sector / category | US Listed | ETF · US Large Cap |
SPY is a Large Blend fund from State Street Investment Management: $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | CNSY | SPY |
|---|---|---|
| 2022 | -69.5% | -18.2% |
| 2023 | -63.5% | +26.2% |
| 2024 | -34.3% | +24.9% |
| 2025 | -55.7% | +17.7% |
| 2026 | -75.7% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CNSY and SPY good diversifiers for each other?
Reasonably. At 0.21, CNSY and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CNSY and SPY?
As of 2026-08-27, the correlation of weekly returns between CNSY and SPY is 0.21 over 3 years, 0.18 over 1 year and 0.18 over 5 years.
Is SPY a good diversifier for CNSY?
Reasonably. At 0.21, CNSY and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.21 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/cnsy-vs-spy.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/cnsy-vs-spy/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: CNSY correlations · SPY correlations