CURI vs SPY: Correlation
CuriosityStream Inc. (CURI) 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 CURI and SPY?
Across a 3-year window, the weekly returns of CURI and SPY correlate at 0.21, weak. Lately the two have moved closer together, with the 1-year correlation at 0.36 versus 0.21 over 3 years. Stretching to 5 years gives 0.32, with an annualized covariance of 265.7 %².
Out of 10 assets tracked against CURI, SPY lands near the bottom at #6. The last year tells two different stories: SPY led by 56.8 percentage points, -36.2% for CURI against +20.6% for SPY. One caveat on sizing: CURI is 5.9 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.
CURI vs SPY: side by side
| CURI (CuriosityStream Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -36.2% | +20.6% |
| 5-year return | -75.1% | +82.4% |
| Volatility (ann.) | 85.7% | 14.5% |
| Beta vs S&P 500 | 1.27 | 1.00 |
| Max drawdown (3Y) | -61.5% | -18.8% |
| Market cap | $0.2B | – |
| P/E (trailing) | – | – |
| Dividend yield | 11.78% | 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 | CURI | SPY |
|---|---|---|
| 2022 | -80.8% | -18.2% |
| 2023 | -52.6% | +26.2% |
| 2024 | +198.0% | +24.9% |
| 2025 | +170.3% | +17.7% |
| 2026 | -29.1% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CURI 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 CURI and SPY?
Using weekly returns as of 2026-08-27: 0.21 over 3 years, with 0.36 over the last year and 0.32 over 5 years.
Is SPY a good diversifier for CURI?
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: CURI correlations · SPY correlations
