BJDX vs GRND: Correlation
Bluejay Diagnostics, Inc. (BJDX) and Grindr Inc. (GRND) show a negative relationship: their 3-year correlation of weekly returns is -0.40.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BJDX and GRND?
Over the past 3 years, BJDX and GRND moved with a correlation of -0.40, which is negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.53) runs below the 3-year figure (-0.40). Over 5 years the correlation is -0.09, and the annualized covariance of weekly returns is -2812.4 %².
GRND is close to the least connected end of BJDX's tracked universe, ranking #19 of 19. Their recent paths diverged sharply: over the last 12 months GRND outperformed by 82.0 percentage points (-83.4% for BJDX against -1.4% for GRND). One caveat on sizing: BJDX is 3.2 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.
BJDX vs GRND: side by side
| BJDX (Bluejay Diagnostics, Inc.) | GRND (Grindr Inc.) | |
|---|---|---|
| 1-year return | -83.4% | -1.4% |
| 5-year return | -100.0% | +52.4% |
| Volatility (ann.) | 151.7% | 46.8% |
| Beta vs S&P 500 | -0.30 | 0.69 |
| Max drawdown (3Y) | -100.0% | -60.2% |
| Market cap | – | $2.7B |
| P/E (trailing) | – | 33.4 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BJDX | GRND |
|---|---|---|
| 2022 | -85.2% | -54.1% |
| 2023 | -83.9% | +88.8% |
| 2024 | -99.0% | +103.2% |
| 2025 | -86.3% | -24.1% |
| 2026 | -65.9% | +13.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BJDX and GRND good diversifiers for each other?
By historical standards, yes. A correlation of -0.40 means the two rarely move for the same reasons.
FAQ
What is the correlation between BJDX and GRND?
Using weekly returns as of 2026-08-27: -0.40 over 3 years, with -0.53 over the last year and -0.09 over 5 years.
Is GRND a good diversifier for BJDX?
By historical standards, yes. A correlation of -0.40 means the two rarely move for the same reasons.
What does a correlation of -0.40 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/bjdx-vs-grnd.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/bjdx-vs-grnd/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: BJDX correlations · GRND correlations
