BJDX vs SSM: Correlation
Measured on weekly returns over the past three years, Bluejay Diagnostics, Inc. (BJDX) and Sono Group N.V. (SSM) carry a correlation of -0.31, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BJDX and SSM?
Over the past 3 years, BJDX and SSM moved with a correlation of -0.31, which is negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.02) than the 3-year average (-0.31). Over 5 years the correlation is -0.28, and the annualized covariance of weekly returns is -57082.5 %².
Out of 19 assets tracked against BJDX, SSM lands near the bottom at #18. Correlation aside, the last 12 months split them widely, with SSM ahead by 32.9 points (-83.4% versus -50.5%). Note the risk asymmetry: SSM runs 7.9 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.
BJDX vs SSM: side by side
| BJDX (Bluejay Diagnostics, Inc.) | SSM (Sono Group N.V.) | |
|---|---|---|
| 1-year return | -83.4% | -50.5% |
| 5-year return | -100.0% | -99.9% |
| Volatility (ann.) | 151.7% | 1204.8% |
| Beta vs S&P 500 | -0.30 | 0.56 |
| Max drawdown (3Y) | -100.0% | -99.4% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BJDX | SSM |
|---|---|---|
| 2022 | -85.2% | -89.8% |
| 2023 | -83.9% | -93.9% |
| 2024 | -99.0% | -16.7% |
| 2025 | -86.3% | +86.7% |
| 2026 | -65.9% | -61.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BJDX and SSM good diversifiers for each other?
Yes. With a correlation of -0.31, BJDX and SSM have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between BJDX and SSM?
Using weekly returns as of 2026-08-27: -0.31 over 3 years, with 0.02 over the last year and -0.28 over 5 years.
Is SSM a good diversifier for BJDX?
Yes. With a correlation of -0.31, BJDX and SSM have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.31 mean?
On the −1 to +1 scale, -0.31 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/bjdx-vs-ssm.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/bjdx-vs-ssm/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BJDX correlations · SSM correlations
