ACIC vs SPY: Correlation
How closely do American Coastal Insurance Corporation (ACIC) and SPDR S&P 500 ETF Trust (SPY) trade together? Their weekly returns over three years give a correlation of 0.21, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ACIC and SPY?
On 3 years of weekly data the ACIC/SPY correlation comes out at 0.21, weak. Lately the two have drifted apart, with the 1-year correlation at 0.04 versus 0.21 over 3 years. The 5-year figure is 0.12, and annualized covariance runs at 102.9 %².
Among the 10 assets we track against ACIC, SPY sits near the bottom by co-movement, at rank #6. The last year tells two different stories: SPY led by 26.9 percentage points, -6.3% for ACIC against +20.6% for SPY. Note the risk asymmetry: ACIC runs 2.3 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
ACIC vs SPY: side by side
| ACIC (American Coastal Insurance Corporation) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -6.3% | +20.6% |
| 5-year return | +184.8% | +82.4% |
| Volatility (ann.) | 33.6% | 14.5% |
| Beta vs S&P 500 | 0.49 | 1.00 |
| Max drawdown (3Y) | -32.8% | -18.8% |
| Market cap | $0.4B | – |
| P/E (trailing) | 4.7 | – |
| 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 | ACIC | SPY |
|---|---|---|
| 2022 | -75.1% | -18.2% |
| 2023 | +792.5% | +26.2% |
| 2024 | +42.3% | +24.9% |
| 2025 | -2.5% | +17.7% |
| 2026 | -20.6% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ACIC and SPY good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.21 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between ACIC and SPY?
Using weekly returns as of 2026-08-27: 0.21 over 3 years, with 0.04 over the last year and 0.12 over 5 years.
Is SPY a good diversifier for ACIC?
Yes, to a useful degree: a correlation of 0.21 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.21 mean?
A reading of 0.21 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: ACIC correlations · SPY correlations
