MYO vs SPY: Correlation
How closely do Myomo Inc. (MYO) and SPDR S&P 500 ETF Trust (SPY) trade together? Their weekly returns over three years give a correlation of 0.28, which is weak.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MYO and SPY?
Over the past 3 years, MYO and SPY moved with a correlation of 0.28, which is weak. The relationship has been stable: the 1-year correlation (0.32) sits close to the 3-year figure. Over 5 years the correlation is 0.23, and the annualized covariance of weekly returns is 401.5 %².
Among the 10 assets we track against MYO, SPY sits near the bottom by co-movement, at rank #6. Correlation aside, the last 12 months split them widely, with MYO ahead by 27.6 points (+48.2% versus +20.6%). Note the risk asymmetry: MYO runs 6.9 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.
MYO vs SPY: side by side
| MYO (Myomo Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | +48.2% | +20.6% |
| 5-year return | -84.2% | +82.4% |
| Volatility (ann.) | 99.7% | 14.5% |
| Beta vs S&P 500 | 1.92 | 1.00 |
| Max drawdown (3Y) | -90.8% | -18.8% |
| Market cap | $0.1B | – |
| 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 | MYO | SPY |
|---|---|---|
| 2022 | -92.5% | -18.2% |
| 2023 | +880.4% | +26.2% |
| 2024 | +28.5% | +24.9% |
| 2025 | -85.9% | +17.7% |
| 2026 | +82.4% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MYO and SPY good diversifiers for each other?
A fair diversifier. At 0.28, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between MYO and SPY?
As of 2026-08-27, the correlation of weekly returns between MYO and SPY is 0.28 over 3 years, 0.32 over 1 year and 0.23 over 5 years.
Is SPY a good diversifier for MYO?
A fair diversifier. At 0.28, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.28 mean?
A reading of 0.28 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: MYO correlations · SPY correlations
