SIRI vs SPY: Correlation
Measured on weekly returns over the past three years, SiriusXM Holdings Inc. (SIRI) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.40, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SIRI and SPY?
On 3 years of weekly data the SIRI/SPY correlation comes out at 0.40, moderate. Little has changed lately, as the 1-year reading of 0.40 lands near the 3-year figure. The 5-year figure is 0.36, and annualized covariance runs at 271.8 %².
Among the 11 assets we track against SIRI, SPY sits near the bottom by co-movement, at rank #7. Over the last 12 months SIRI came out ahead by 5.3 percentage points (+25.9% against +20.6%). Risk is not evenly split, since SIRI carries 3.2 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.
SIRI vs SPY: side by side
| SIRI (SiriusXM Holdings Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | +25.9% | +20.6% |
| 5-year return | -45.1% | +82.4% |
| Volatility (ann.) | 46.6% | 14.5% |
| Beta vs S&P 500 | 1.30 | 1.00 |
| Max drawdown (3Y) | -64.5% | -18.8% |
| Market cap | $9.6B | – |
| P/E (trailing) | 11.4 | – |
| Dividend yield | 3.79% | 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 | SIRI | SPY |
|---|---|---|
| 2022 | -3.2% | -18.2% |
| 2023 | -4.3% | +26.2% |
| 2024 | -56.9% | +24.9% |
| 2025 | -8.0% | +17.7% |
| 2026 | +47.1% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SIRI and SPY good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between SIRI and SPY?
As of 2026-08-27, the correlation of weekly returns between SIRI and SPY is 0.40 over 3 years, 0.40 over 1 year and 0.36 over 5 years.
Is SPY a good diversifier for SIRI?
Yes, to a useful degree: a correlation of 0.40 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.40 mean?
On the −1 to +1 scale, 0.40 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
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Hubs: SIRI correlations · SPY correlations
