MBRX vs XLO: Correlation
Moleculin Biotech, Inc. (MBRX) and Xilio Therapeutics, Inc. (XLO) show a moderate relationship: their 3-year correlation of weekly returns is 0.33.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MBRX and XLO?
Across a 3-year window, the weekly returns of MBRX and XLO correlate at 0.33, moderate. The past 12 months show a weaker link (0.06) than the 3-year average (0.33). Stretching to 5 years gives 0.26, with an annualized covariance of 5146.4 %².
By 3-year correlation, XLO places #6 of the 13 assets tracked against MBRX. The last year tells two different stories: XLO led by 89.5 percentage points, -95.5% for MBRX against -6.0% for XLO. Risk is not evenly split, since MBRX carries 1.7 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.
MBRX vs XLO: side by side
| MBRX (Moleculin Biotech, Inc.) | XLO (Xilio Therapeutics, Inc.) | |
|---|---|---|
| 1-year return | -95.5% | -6.0% |
| 5-year return | -99.9% | -96.0% |
| Volatility (ann.) | 160.4% | 96.4% |
| Beta vs S&P 500 | 1.10 | -0.07 |
| Max drawdown (3Y) | -99.9% | -82.8% |
| Market cap | – | $0.1B |
| P/E (trailing) | 0.0 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | MBRX | XLO |
|---|---|---|
| 2022 | -43.0% | -83.2% |
| 2023 | -19.1% | -79.6% |
| 2024 | -86.8% | +73.6% |
| 2025 | -92.2% | -33.0% |
| 2026 | -79.2% | +0.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MBRX and XLO good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.33 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between MBRX and XLO?
Using weekly returns as of 2026-08-27: 0.33 over 3 years, with 0.06 over the last year and 0.26 over 5 years.
Is XLO a good diversifier for MBRX?
Yes, to a useful degree: a correlation of 0.33 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.33 mean?
On the −1 to +1 scale, 0.33 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/mbrx-vs-xlo.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/mbrx-vs-xlo/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MBRX correlations · XLO correlations
