Westamerica Bancorporation (WABC)
WABC moved a median of +0.05% 30 minutes after news, and +0.24% by the close. How WABC actually reacts to news — the realized, point-in-time move the market made, measured across 179 labeled events over the last three years with zero look-ahead.
WABC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.01% | 51% | 151 |
| 30-min | +0.05% | 56% | 174 |
| 60-min | +0.10% | 58% | 177 |
| to close | +0.24% | 55% | 176 |
| Middle 50% of WABC reactions | -0.16% to +0.38% |
|---|---|
| Median reaction (30-min) | +0.05% |
| Measured reactions | 179 |
Half of all Westamerica Bancorporation news events land between -0.16% and +0.38% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How WABC reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 18 | -0.12% | 39% | -0.09% |
| Analyst downgrades | 15 | 0.00% | 40% | -0.25% |
| Rating reiterations | 15 | -0.15% | 33% | +0.46% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 2 further classes were observed with fewer than 10 measured events and are not published. See how WABC ranks against every other measured name →
That’s how WABC usually reacts — get an email when it moves on news →Email me when WABC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to WABC's baseline. Nothing else.
Recent WABC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K WESTAMERICA BANCORPORATI For: Oct 15 | SEC filing · Form 8-K | SEC EDGAR | -0.07% | +0.23% | |
| Westamerica Bancorporation Reports Third Quarter 2026 Financial Results | Press release | GlobeNewswire | +0.69% | +2.06% | |
| Form 10-Q WESTAMERICA BANCORPORATI For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.01% | -0.10% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Jul 23 | SEC filing · Form 8-K | SEC EDGAR | — | +0.85% | |
| Westamerica Bancorporation Declares Quarterly Cash Dividend | Press release | GlobeNewswire | — | +0.80% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Jul 16 | SEC filing · Form 8-K | SEC EDGAR | — | +1.71% | |
| Westamerica Bancorporation Reports Second Quarter 2026 Financial Results | Press release | GlobeNewswire | +0.45% | +3.10% | |
| Form 11-K WESTAMERICA BANCORPORATI For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | -0.49% | -0.22% | |
| Form 10-Q WESTAMERICA BANCORPORATI For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.08% | +0.41% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Apr 24 | SEC filing · Form 8-K | SEC EDGAR | +0.52% | -0.43% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Apr 24 | SEC filing · Form 8-K | SEC EDGAR | +0.46% | -0.74% | |
| Westamerica Bancorporation Increases Stock Repurchase Plan Authorization | Press release | GlobeNewswire | +0.27% | +0.29% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | — | +0.17% | |
| Westamerica Bancorporation Increases Quarterly Cash Dividend | Press release | GlobeNewswire | +0.05% | +0.90% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Apr 16 | SEC filing · Form 8-K | SEC EDGAR | +0.11% | +0.37% | |
| Westamerica Bancorporation Reports First Quarter 2026 Financial Results | Press release | GlobeNewswire | -0.50% | +0.32% | |
| Westamerica Bank Announces New Board Member | Press release | GlobeNewswire | -0.14% | -0.17% | |
| Form ARS WESTAMERICA BANCORPORATI For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | — | -0.05% | |
| Form DEF 14A WESTAMERICA BANCORPORATI For: Mar 13 | SEC filing · Form DEF | SEC EDGAR | — | -0.05% | |
| Form DEFA14A WESTAMERICA BANCORPORATI | SEC filing · Form DEFA14A | SEC EDGAR | — | -0.05% | |
| Form 10-K WESTAMERICA BANCORPORATI For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.15% | +1.88% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Jan 22 | SEC filing · Form 8-K | SEC EDGAR | — | -1.03% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Jan 22 | SEC filing · Form 8-K | SEC EDGAR | — | -0.57% | |
| Westamerica Bancorporation Declares Quarterly Cash Dividend | Press release | GlobeNewswire | — | -1.17% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Jan 15 | SEC filing · Form 8-K | SEC EDGAR | -0.06% | +0.34% | |
| Westamerica Bancorporation Reports Fourth Quarter 2025 Financial Results | Press release | GlobeNewswire | -0.08% | +1.29% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Dec 18 | SEC filing · Form 8-K | SEC EDGAR | +0.40% | -0.27% | |
| Westamerica Bancorporation Announces Stock Repurchase Plan | Press release | GlobeNewswire | +0.88% | +2.27% | |
| Form 10-Q WESTAMERICA BANCORPORATI For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | — | +0.38% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Oct 23 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.13% | |
| Westamerica Bancorporation Declares Quarterly Cash Dividend | Press release | GlobeNewswire | +0.26% | +0.64% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Oct 16 | SEC filing · Form 8-K | SEC EDGAR | +0.16% | +1.35% | |
| Westamerica Bancorporation Reports Third Quarter 2025 Financial Results | Press release | GlobeNewswire | -0.82% | -0.28% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 10-Q WESTAMERICA BANCORPORATI For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.21% | -0.42% | |
| Form S-8 WESTAMERICA BANCORPORATI | SEC filing · Form S-8 | SEC EDGAR | -0.07% | -0.17% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Jul 24 | SEC filing · Form 8-K | SEC EDGAR | -0.10% | -1.25% | |
| Westamerica Bancorporation Declares Quarterly Cash Dividend | Press release | GlobeNewswire | +0.49% | -0.89% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Jul 17 | SEC filing · Form 8-K | SEC EDGAR | — | -0.27% | |
| Westamerica Bancorporation Reports Second Quarter 2025 Financial Results | Press release | GlobeNewswire | — | -0.85% | |
| Form 11-K WESTAMERICA BANCORPORATI For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | +0.53% | -0.35% | |
| Form 10-Q WESTAMERICA BANCORPORATI For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.04% | -0.06% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Apr 28 | SEC filing · Form 8-K | SEC EDGAR | — | +0.26% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Apr 24 | SEC filing · Form 8-K | SEC EDGAR | -0.17% | +1.51% | |
| Westamerica Bancorporation Increases Quarterly Cash Dividend | Press release | GlobeNewswire | — | +1.95% | |
| Form 8-K WESTAMERICA BANCORPORATI For: Apr 17 | SEC filing · Form 8-K | SEC EDGAR | +0.50% | +0.66% | |
| Westamerica Bancorporation Reports First Quarter 2025 Financial Results | Press release | GlobeNewswire | -0.70% | +0.30% | |
| Form ARS WESTAMERICA BANCORPORATI For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.71% | +1.92% | |
| Form DEF 14A WESTAMERICA BANCORPORATI For: Apr 24 | SEC filing · Form DEF | SEC EDGAR | +0.71% | +1.92% | |
| Form DEFA14A WESTAMERICA BANCORPORATI | SEC filing · Form DEFA14A | SEC EDGAR | +0.71% | +1.92% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the WABC section they belong to.
Where else WABC is measured.
WABC earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| First Bancorp, Inc (ME) (FNLC) | 179 | 0.00% | 46% |
| Oxbridge Re Holdings Limited - Ordinary Shares (OXBR) | 179 | 0.00% | 46% |
| BLACKROCK FL MUNI 2020 CO (BFO) | 178 | 0.00% | 22% |
| KB Financial Group Inc (KB) | 178 | +0.02% | 51% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Financial Services names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is Westamerica Bancorporation's median reaction calculated?
Every labeled WABC news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 179 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 56% of WABC's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does WABC's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.