ASRV vs OSBC: Correlation
How closely do AmeriServ Financial Inc. (ASRV) and Old Second Bancorp, Inc. (OSBC) trade together? Their weekly returns over three years give a correlation of 0.35, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ASRV and OSBC?
Across a 3-year window, the weekly returns of ASRV and OSBC correlate at 0.35, moderate. Recent behaviour matches the longer record: 0.28 over 1 year against 0.35 over 3. Stretching to 5 years gives 0.34, with an annualized covariance of 326.7 %².
Within ASRV's tracked universe of 11 assets, OSBC comes in at #4 by 3-year correlation. Correlation aside, the last 12 months split them widely, with ASRV ahead by 25.9 points (+63.3% versus +37.4%).
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.
ASRV vs OSBC: side by side
| ASRV (AmeriServ Financial Inc.) | OSBC (Old Second Bancorp, Inc.) | |
|---|---|---|
| 1-year return | +63.3% | +37.4% |
| 5-year return | +50.5% | +130.4% |
| Volatility (ann.) | 34.7% | 26.8% |
| Beta vs S&P 500 | 0.31 | 0.67 |
| Max drawdown (3Y) | -32.9% | -25.5% |
| Market cap | $0.1B | $1.3B |
| P/E (trailing) | 9.9 | 14.6 |
| Dividend yield | 2.36% | 1.07% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | ASRV | OSBC |
|---|---|---|
| 2022 | +5.0% | +29.2% |
| 2023 | -14.5% | -2.4% |
| 2024 | -13.4% | +16.7% |
| 2025 | +24.3% | +11.3% |
| 2026 | +55.6% | +30.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ASRV and OSBC good diversifiers for each other?
Reasonably. At 0.35, ASRV and OSBC keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between ASRV and OSBC?
The ASRV/OSBC correlation stands at 0.35 on a 3-year window (1 year: 0.28, 5 years: 0.34), computed from weekly returns as of 2026-08-27.
Is OSBC a good diversifier for ASRV?
Reasonably. At 0.35, ASRV and OSBC keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.35 mean?
On the −1 to +1 scale, 0.35 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
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Related comparisons
Hubs: ASRV correlations · OSBC correlations
