Old Second Bancorp (OSBC) vs Westamerica Bancorporation (WABC)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
Old Second Bancorp (OSBC) has outperformed Westamerica Bancorporation (WABC) over the past year, gaining 43.0% versus a gain of 22.8%. Over five years, OSBC leads with a +86.0% price change compared with +6.5% for WABC. Westamerica Bancorporation is the larger company by market cap ($1.36 billion vs $1.25 billion), about 1.1 times the size.
On valuation, Old Second Bancorp trades at a lower forward P/E (10.0x vs 12.6x for Westamerica Bancorporation). Westamerica Bancorporation offers the higher dividend yield (3.15% vs 1.10%).
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | OSBC | WABC |
|---|---|---|
| Share price | $24.50 | $58.98 |
| Market cap | $1.25B | $1.36B |
| 1-day change | -0.65% | +1.15% |
| YTD return | +26.46% | +21.91% |
| 1-year return | +42.96% | +22.76% |
| 5-year return | +85.97% | +6.46% |
| P/E ratio (TTM) | 13.92 | 12.99 |
| Forward P/E | 10.03 | 12.59 |
| EPS (TTM) | $1.76 | $4.54 |
| Dividend yield | 1.10% | 3.15% |
| Annual dividend | $0.27 | $1.86 |
| 52-week high | $26.06 | $63.61 |
| 52-week low | $16.65 | $44.93 |
| Distance from 52-week high | -5.99% | -7.28% |
| Analyst consensus | buy | none |
| Avg. price target upside | +14.29% | +8.51% |
| Average volume | 466.73K | 191.76K |
| Shares outstanding | 50.88M | 23.11M |
| Employees | 1,062 | 608 |
| Sector | Finance | Finance |
| Industry | Major Banks | Major Banks |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- OSBC has outperformed WABC by 20.2 percentage points over the past year.
- Westamerica Bancorporation offers a meaningfully higher dividend yield (3.15% vs 1.10%).
About Old Second Bancorp
OSBC stock →Old Second Bancorp, Inc. operates as the bank holding company for Old Second National Bank that provides community banking services in the United States.
Finance · Major Banks · 1,062 employees
About Westamerica Bancorporation
WABC stock →Westamerica Bancorporation operates as a bank holding company for Westamerica Bank that provides various banking products and services to individual and commercial customers in the United States. The company accepts various deposit products from local businesses and professionals, as well as retail savings and checking accounts, as well as certificates of deposit.
Finance · Major Banks · 608 employees
OSBC vs WABC FAQ
Which is bigger, Old Second Bancorp or Westamerica Bancorporation?
Westamerica Bancorporation (WABC) is larger, with a market capitalization of $1.36B compared with $1.25B for Old Second Bancorp (OSBC).
Which stock has performed better over the past year, OSBC or WABC?
OSBC returned +42.96% over the past 12 months, compared with +22.76% for WABC (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, OSBC or WABC?
WABC has the lower trailing P/E at 13.0, versus 13.9 for OSBC. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Which pays a higher dividend, Old Second Bancorp or Westamerica Bancorporation?
Westamerica Bancorporation has the higher yield at 3.15%, compared with 1.10% for Old Second Bancorp.
Are Old Second Bancorp and Westamerica Bancorporation in the same industry?
Yes. Both are classified in the Major Banks industry within the Finance sector.