IBIO vs RMBI: Correlation
How closely do iBio, Inc. (IBIO) and Richmond Mutual Bancorporation, Inc. (RMBI) trade together? Their weekly returns over three years give a correlation of -0.21, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IBIO and RMBI?
On 3 years of weekly data the IBIO/RMBI correlation comes out at -0.21, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.08) than the 3-year average (-0.21). The 5-year figure is -0.15, and annualized covariance runs at -1044.0 %².
Out of 13 assets tracked against IBIO, RMBI lands near the bottom at #10. The last year tells two different stories: IBIO led by 58.2 percentage points, +72.8% for IBIO against +14.6% for RMBI. One caveat on sizing: IBIO is 7.8 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.
IBIO vs RMBI: side by side
| IBIO (iBio, Inc.) | RMBI (Richmond Mutual Bancorporation, Inc.) | |
|---|---|---|
| 1-year return | +72.8% | +14.6% |
| 5-year return | -99.8% | +24.6% |
| Volatility (ann.) | 196.4% | 25.3% |
| Beta vs S&P 500 | 1.36 | 0.34 |
| Max drawdown (3Y) | -92.9% | -20.8% |
| Market cap | $0.1B | $0.3B |
| P/E (trailing) | – | 13.1 |
| Dividend yield | 0.00% | 3.78% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IBIO | RMBI |
|---|---|---|
| 2022 | -96.8% | -16.7% |
| 2023 | -84.4% | -7.2% |
| 2024 | +78.8% | +28.6% |
| 2025 | -21.2% | +3.7% |
| 2026 | -27.5% | +16.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IBIO and RMBI good diversifiers for each other?
Yes. With a correlation of -0.21, IBIO and RMBI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between IBIO and RMBI?
The IBIO/RMBI correlation stands at -0.21 on a 3-year window (1 year: 0.08, 5 years: -0.15), computed from weekly returns as of 2026-08-27.
Is RMBI a good diversifier for IBIO?
Yes. With a correlation of -0.21, IBIO and RMBI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.21 mean?
A reading of -0.21 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/ibio-vs-rmbi.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/ibio-vs-rmbi/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IBIO correlations · RMBI correlations
