BIVI vs MBBC: Correlation
Measured on weekly returns over the past three years, BioVie Inc. (BIVI) and Marathon Bancorp, Inc. (MBBC) carry a correlation of -0.23, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BIVI and MBBC?
Across a 3-year window, the weekly returns of BIVI and MBBC correlate at -0.23, negative, meaning they tend to move in opposite directions. The link has tightened recently: the 1-year correlation (-0.03) runs above the 3-year figure (-0.23). Stretching to 5 years gives -0.17, with an annualized covariance of -1015.0 %².
Out of 12 assets tracked against BIVI, MBBC lands near the bottom at #10. The trailing year gives MBBC the advantage: +35.2% versus +48.3%, a 13.1-point spread. Risk is not evenly split, since BIVI carries 4.5 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.
BIVI vs MBBC: side by side
| BIVI (BioVie Inc.) | MBBC (Marathon Bancorp, Inc.) | |
|---|---|---|
| 1-year return | +35.2% | +48.3% |
| 5-year return | -99.7% | +103.0% |
| Volatility (ann.) | 139.8% | 31.3% |
| Beta vs S&P 500 | 1.45 | -0.07 |
| Max drawdown (3Y) | -99.8% | -28.3% |
| Market cap | – | – |
| P/E (trailing) | – | 36.7 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BIVI | MBBC |
|---|---|---|
| 2022 | +72.7% | +4.7% |
| 2023 | -83.8% | -17.0% |
| 2024 | -84.1% | +49.9% |
| 2025 | -94.2% | +19.2% |
| 2026 | +88.8% | +26.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BIVI and MBBC good diversifiers for each other?
Yes: at -0.23, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BIVI and MBBC?
Using weekly returns as of 2026-08-27: -0.23 over 3 years, with -0.03 over the last year and -0.17 over 5 years.
Is MBBC a good diversifier for BIVI?
Yes: at -0.23, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.23 mean?
A reading of -0.23 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/bivi-vs-mbbc.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bivi-vs-mbbc/)
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Hubs: BIVI correlations · MBBC correlations
