MBRX vs OSRH: Correlation
How closely do Moleculin Biotech, Inc. (MBRX) and OSR Health, Inc. (OSRH) trade together? Their weekly returns over three years give a correlation of -0.44, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MBRX and OSRH?
Across a 3-year window, the weekly returns of MBRX and OSRH correlate at -0.44, negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at -0.23 versus -0.44 over 3 years. Stretching to 5 years gives n/a, with an annualized covariance of -7115.5 %².
Out of 13 assets tracked against MBRX, OSRH lands near the bottom at #13. Over the last 12 months OSRH came out ahead by 12.7 percentage points (-95.5% against -82.8%). Note the risk asymmetry: MBRX runs 1.6 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.
MBRX vs OSRH: side by side
| MBRX (Moleculin Biotech, Inc.) | OSRH (OSR Health, Inc.) | |
|---|---|---|
| 1-year return | -95.5% | -82.8% |
| 5-year return | -99.9% | n/a |
| Volatility (ann.) | 160.4% | 100.8% |
| Beta vs S&P 500 | 1.10 | 0.47 |
| Max drawdown (3Y) | -99.9% | -99.0% |
| Market cap | – | – |
| P/E (trailing) | 0.0 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MBRX | OSRH |
|---|---|---|
| 2022 | -43.0% | – |
| 2023 | -19.1% | – |
| 2024 | -86.8% | +9.8% |
| 2025 | -92.2% | -95.1% |
| 2026 | -79.2% | -70.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MBRX and OSRH good diversifiers for each other?
Yes: at -0.44, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between MBRX and OSRH?
The MBRX/OSRH correlation stands at -0.44 on a 3-year window (1 year: -0.23, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is OSRH a good diversifier for MBRX?
Yes: at -0.44, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.44 mean?
A reading of -0.44 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/mbrx-vs-osrh.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/mbrx-vs-osrh/)
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Related comparisons
Hubs: MBRX correlations · OSRH correlations
