BEAT vs SPY: Correlation
Heartbeam, Inc. (BEAT) and SPDR S&P 500 ETF Trust (SPY) show a near-zero relationship: their 3-year correlation of weekly returns is 0.06.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BEAT and SPY?
Across a 3-year window, the weekly returns of BEAT and SPY correlate at 0.06, near zero, meaning they move largely independently. Little has changed lately, as the 1-year reading of 0.02 lands near the 3-year figure. Stretching to 5 years gives 0.05, with an annualized covariance of 136.2 %².
Among the 16 assets we track against BEAT, SPY ranks #9 by 3-year correlation. Their recent paths diverged sharply: over the last 12 months SPY outperformed by 79.4 percentage points (-58.8% for BEAT against +20.6% for SPY). Note the risk asymmetry: BEAT runs 10.5 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.
BEAT vs SPY: side by side
| BEAT (Heartbeam, Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -58.8% | +20.6% |
| 5-year return | -89.6% | +82.4% |
| Volatility (ann.) | 152.8% | 14.5% |
| Beta vs S&P 500 | 0.65 | 1.00 |
| Max drawdown (3Y) | -86.1% | -18.8% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| 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 | BEAT | SPY |
|---|---|---|
| 2022 | +58.4% | -18.2% |
| 2023 | -51.8% | +26.2% |
| 2024 | -2.1% | +24.9% |
| 2025 | +4.3% | +17.7% |
| 2026 | -79.8% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BEAT and SPY good diversifiers for each other?
By historical standards, yes. A correlation of 0.06 means the two rarely move for the same reasons.
FAQ
What is the correlation between BEAT and SPY?
Using weekly returns as of 2026-08-27: 0.06 over 3 years, with 0.02 over the last year and 0.05 over 5 years.
Is SPY a good diversifier for BEAT?
By historical standards, yes. A correlation of 0.06 means the two rarely move for the same reasons.
What does a correlation of 0.06 mean?
A reading of 0.06 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: BEAT correlations · SPY correlations
