Waterstone Financial, Inc. (WSBF)
WSBF moved a median of 0.00% 30 minutes after news, and 0.00% by the close. How WSBF actually reacts to news — the realized, point-in-time move the market made, measured across 153 labeled events over the last three years with zero look-ahead.
WSBF’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 25% | 122 |
| 30-min | 0.00% | 41% | 148 |
| 60-min | -0.06% | 44% | 153 |
| to close | 0.00% | 49% | 152 |
| Middle 50% of WSBF reactions | -0.40% to +0.38% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 153 |
Half of all Waterstone Financial, Inc. news events land between -0.40% 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.
Email me when WSBF moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to WSBF's baseline. Nothing else.
Recent WSBF events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K Waterstone Financial, For: Oct 16 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 8-K Waterstone Financial, For: Sep 22 | SEC filing · Form 8-K | SEC EDGAR | -0.44% | -1.36% | |
| Waterstone Financial Declares Regular Quarterly Cash Dividend | Press release | GlobeNewswire | -0.44% | -1.36% | |
| Form 10-Q Waterstone Financial, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.48% | -0.24% | |
| Form 8-K Waterstone Financial, For: Jul 23 | SEC filing · Form 8-K | SEC EDGAR | -0.97% | +2.45% | |
| Waterstone Financial, Inc. Announces Results of Operations for the Quarter and Six Months Ended June 30, 2026 | Press release | GlobeNewswire | -0.97% | +2.45% | |
| Form 8-K Waterstone Financial, For: Jun 23 | SEC filing · Form 8-K | SEC EDGAR | +0.05% | +0.71% | |
| Waterstone Financial Declares Regular Quarterly Cash Dividend | Press release | GlobeNewswire | +0.05% | +0.71% | |
| Form 11-K Waterstone Financial, For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | +0.11% | +0.59% | |
| Form 8-K Waterstone Financial, For: May 19 | SEC filing · Form 8-K | SEC EDGAR | -0.06% | +1.59% | |
| Form 10-Q Waterstone Financial, For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.11% | +1.08% | |
| Form 8-K Waterstone Financial, For: Apr 27 | SEC filing · Form 8-K | SEC EDGAR | +1.73% | +1.62% | |
| Waterstone Financial, Inc. Announces Expansion of Share Repurchase Program | Press release | GlobeNewswire | +1.73% | +1.62% | |
| Form 8-K Waterstone Financial, For: Apr 23 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Waterstone Financial, Inc. Announces Results of Operations for the Three Months Ended March 31, 2026 | Press release | GlobeNewswire | +0.00% | +0.00% | |
| Form ARS Waterstone Financial, For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.16% | +2.35% | |
| Form DEF 14A Waterstone Financial, For: May 19 | SEC filing · Form DEF | SEC EDGAR | +0.27% | +2.57% | |
| Form 8-K Waterstone Financial, For: Mar 17 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.56% | |
| Waterstone Financial Raises Quarterly Cash Dividend by 13.3% | Press release | GlobeNewswire | +0.00% | -0.56% | |
| Form 10-K Waterstone Financial, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.53% | -1.06% | |
| Form 8-K Waterstone Financial, For: Jan 28 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +4.06% | |
| Form 8-K Waterstone Financial, For: Dec 18 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -2.62% | |
| Waterstone Financial Declares Regular Quarterly Cash Dividend | Press release | GlobeNewswire | +0.00% | -2.62% | |
| Form 10-Q Waterstone Financial, For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.23% | +0.59% | |
| Form 8-K Waterstone Financial, For: Oct 23 | SEC filing · Form 8-K | SEC EDGAR | +0.47% | +2.34% | |
| Waterstone Financial, Inc. Announces Results of Operations for the Quarter and Nine Months Ended September 30, 2025 | Press release | GlobeNewswire | +0.47% | +2.34% | |
| Form 8-K Waterstone Financial, For: Oct 21 | SEC filing · Form 8-K | SEC EDGAR | -0.17% | +0.74% | |
| Form 8-K Waterstone Financial, For: Sep 23 | SEC filing · Form 8-K | SEC EDGAR | -0.09% | -1.88% | |
| Waterstone Financial Declares Regular Quarterly Cash Dividend | Press release | GlobeNewswire | -0.09% | -1.88% | |
| Form 10-Q Waterstone Financial, For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | +0.22% | |
| Form 8-K Waterstone Financial, For: Jul 22 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +2.47% | |
| Waterstone Financial, Inc. Announces Results of Operations for the Quarter and Six Months Ended June 30, 2025 | Press release | GlobeNewswire | +0.00% | +2.47% | |
| Form 8-K Waterstone Financial, For: Jul 08 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.72% | |
| Waterstone Financial Announces Election of New Board Members | Press release | GlobeNewswire | +0.00% | -0.72% | |
| Form 8-K Waterstone Financial, For: Jun 17 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.90% | |
| Waterstone Financial Declares Regular Quarterly Cash Dividend | Press release | GlobeNewswire | +0.00% | +0.90% | |
| Form 11-K Waterstone Financial, For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | — | +0.45% | |
| Form 8-K Waterstone Financial, For: May 20 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -2.24% | |
| Form 10-Q Waterstone Financial, For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -0.80% | |
| Form 8-K Waterstone Financial, For: Apr 22 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -3.17% | |
| Waterstone Financial, Inc. Announces Results of Operations for the Quarter Ended March 31, 2025 | Press release | GlobeNewswire | +0.00% | -3.17% | |
| Form 8-K Waterstone Financial, For: Apr 17 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Waterstone Financial Announces Director Retirement | Press release | GlobeNewswire | +0.00% | +0.00% | |
| Form ARS Waterstone Financial, For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.04% | +0.13% | |
| Form DEF 14A Waterstone Financial, For: May 20 | SEC filing · Form DEF | SEC EDGAR | — | -2.33% | |
| Form 8-K Waterstone Financial, For: Mar 20 | SEC filing · Form 8-K | SEC EDGAR | +1.19% | -0.30% | |
| Waterstone Financial Declares Regular Quarterly Cash Dividend | Press release | GlobeNewswire | +1.19% | -0.30% | |
| Form 10-K Waterstone Financial, For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.36% | +0.50% | |
| Form 8-K Waterstone Financial, For: Jan 28 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +7.48% | |
| Waterstone Financial, Inc. Announces Results of Operations for the Quarter and Year Ended December 31, 2024 | Press release | GlobeNewswire | +0.00% | +7.48% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the WSBF section they belong to.
Where else WSBF is measured.
WSBF earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Grupo Financiero Galicia S.A. - American Depositary Shares, Class B Shares underlying (GGAL) | 153 | +0.10% | 55% |
| Adams Natural Resources Fund, Inc. (PEO) | 153 | +0.02% | 55% |
| MS ASIA PACIFIC COMMON (APF) | 152 | 0.00% | 50% |
| Home Federal Bancorp, Inc. of Louisiana (HFBL) | 152 | 0.00% | 29% |
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 Waterstone Financial, Inc.'s median reaction calculated?
Every labeled WSBF 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 153 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. 41% of WSBF'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 WSBF'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.