Marathon Bancorp, Inc. (MBBC)
MBBC moved a median of -0.03% 30 minutes after news, and 0.00% by the close. How MBBC actually reacts to news — the realized, point-in-time move the market made, measured across 135 labeled events over the last three years with zero look-ahead.
MBBC’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 36% | 47 |
| 30-min | -0.03% | 23% | 70 |
| 60-min | -0.03% | 28% | 71 |
| to close | 0.00% | 33% | 100 |
| Middle 50% of MBBC reactions | -0.47% to 0.00% |
|---|---|
| Median reaction (30-min) | -0.03% |
| Measured reactions | 135 |
Half of all Marathon Bancorp, Inc. news events land between -0.47% and +0.00% 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 MBBC moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MBBC's baseline. Nothing else.
Recent MBBC events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form ARS Marathon Bancorp, Inc. For: Jun 30 | SEC filing · Form ARS | SEC EDGAR | — | — | |
| Form DEF 14A Marathon Bancorp, Inc. For: Nov 17 | SEC filing · Form DEF | SEC EDGAR | — | — | |
| Form 8-K Marathon Bancorp, Inc. For: Sep 30 | SEC filing · Form 8-K | SEC EDGAR | — | +3.02% | |
| Form 10-K Marathon Bancorp, Inc. For: Jun 30 | SEC filing · Form 10-K | SEC EDGAR | — | +1.42% | |
| Form 11-K Marathon Bancorp, Inc. For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | — | +2.67% | |
| Form S-8 Marathon Bancorp, Inc. | SEC filing · Form S-8 | SEC EDGAR | — | +0.75% | |
| Form 8-K Marathon Bancorp, Inc. For: May 28 | SEC filing · Form 8-K | SEC EDGAR | +3.14% | +3.44% | |
| Form 10-Q Marathon Bancorp, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -0.07% | |
| Form 8-K Marathon Bancorp, Inc. For: Apr 24 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +4.76% | |
| Form DEF 14A Marathon Bancorp, Inc. For: May 28 | SEC filing · Form DEF | SEC EDGAR | +0.00% | +4.76% | |
| Marathon Bancorp, Inc. Announces Adoption of Stock Repurchase Program | Press release | ACCESS Newswire | +0.70% | +4.76% | |
| Form 10-Q Marathon Bancorp, Inc. For: Dec 31 | SEC filing · Form 10-Q | SEC EDGAR | — | -0.44% | |
| Form 8-K Marathon Bancorp, Inc. For: Nov 18 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -0.44% | |
| Form 10-Q Marathon Bancorp, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form ARS Marathon Bancorp, Inc. For: Jun 30 | SEC filing · Form ARS | SEC EDGAR | -8.09% | -5.34% | |
| Form DEF 14A Marathon Bancorp, Inc. For: Nov 18 | SEC filing · Form DEF | SEC EDGAR | -8.09% | -5.34% | |
| Form S-8 Marathon Bancorp, Inc. | SEC filing · Form S-8 | SEC EDGAR | — | — | |
| Form 10-K Marathon Bancorp, Inc. For: Jun 30 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +0.19% | |
| Form 8-A12B Marathon Bancorp, Inc. | SEC filing · Form 8-A12B | SEC EDGAR | — | -22.57% | |
| Form 8-K Marathon Bancorp, Inc. For: Apr 21 | SEC filing · Form 8-K | SEC EDGAR | — | -22.57% | |
| Form CERT Marathon Bancorp, Inc. | SEC filing · Form CERT | SEC EDGAR | — | -22.57% | |
| Marathon Bancorp, Inc. Announces Completion of Conversion and Related Stock Offering | Press release | ACCESS Newswire | — | -22.57% | |
| Form 8-K Marathon Bancorp, Inc. For: Apr 16 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Marathon Bancorp, Inc. Announces Expected Closing Date of Conversion Transaction | Press release | ACCESS Newswire | +0.00% | +0.00% | |
| Form 8-K Marathon Bancorp, Inc. For: Mar 31 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Marathon Bancorp, Inc. Announces Completion of the Community Offering and Stockholder and Member Approvals for Pending Conversion Transaction | Press release | ACCESS Newswire | +0.00% | +0.00% | |
| Form 8-K Marathon Bancorp, Inc. For: Mar 24 | SEC filing · Form 8-K | SEC EDGAR | +3.76% | +3.76% | |
| Marathon Bancorp, Inc. Extends Community Offering | Press release | ACCESS Newswire | +3.76% | +3.76% | |
| Form 8-K Marathon Bancorp, Inc. For: Feb 20 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.00% | |
| Marathon Bancorp, Inc. Announces Commencement of Stock Offering | Press release | ACCESS Newswire | +0.00% | +0.00% | |
| Form 8-K Marathon Bancorp, Inc. For: Feb 11 | SEC filing · Form 8-K | SEC EDGAR | -0.13% | -0.13% | |
| Form 10-Q Marathon Bancorp, Inc. For: Dec 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.00% | -0.04% | |
| Form EFFECT Marathon Bancorp, Inc. | SEC filing · Form EFFECT | SEC EDGAR | — | — | |
| Form S-1/A Marathon Bancorp, Inc. | SEC filing · Form S-1 | SEC EDGAR | — | — | |
| Form S-1 Marathon Bancorp, Inc. | SEC filing · Form S-1 | SEC EDGAR | +0.08% | +0.16% | |
| Form 8-K Marathon Bancorp, Inc. For: Dec 10 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +5.91% | |
| Marathon Bancorp, Inc. Announces Adoption of Plan of Conversion and Reorganization to Undertake Second Step Conversion | Press release | Accesswire | +0.00% | +5.91% | |
| Form 8-K Marathon Bancorp, Inc. For: Nov 19 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 10-Q Marathon Bancorp, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form ARS Marathon Bancorp, Inc. For: Jun 30 | SEC filing · Form ARS | SEC EDGAR | — | — | |
| Form DEF 14A Marathon Bancorp, Inc. For: Nov 19 | SEC filing · Form DEF | SEC EDGAR | — | — | |
| Form 10-K Marathon Bancorp, Inc. For: Jun 30 | SEC filing · Form 10-K | SEC EDGAR | +0.00% | +0.00% | |
| Marathon Bank Announced Today the Promotion of Michelle Knopf to Chief Operating Officer (COO) | Press release | Accesswire | — | — | |
| Form 11-K Marathon Bancorp, Inc. For: Dec 31 | SEC filing · Form 11-K | SEC EDGAR | — | -1.45% | |
| Form 10-Q Marathon Bancorp, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.22% | -2.21% | |
| Form 10-Q Marathon Bancorp, Inc. For: Dec 31 | SEC filing · Form 10-Q | SEC EDGAR | — | — | |
| Form 8-K Marathon Bancorp, Inc. For: Dec 22 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Marathon Bancorp, Inc. Announces Adoption of Stock Repurchase Program | Press release | Accesswire | — | — | |
| Form 8-K Marathon Bancorp, Inc. For: Nov 21 | SEC filing · Form 8-K | SEC EDGAR | — | — | |
| Form 10-Q Marathon Bancorp, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -1.02% | -1.71% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MBBC section they belong to.
Where else MBBC is measured.
MBBC earnings → · Analyst actions → · SEC filings →
Every ticker we measure the same way24
Apple (AAPL)
How AAPL actually reacts to news, measured.
NVIDIA (NVDA)
How NVDA actually reacts to news, measured.
Tesla (TSLA)
How TSLA actually reacts to news, measured.
Microsoft (MSFT)
How MSFT actually reacts to news, measured.
Advanced Micro Devices (AMD)
How AMD actually reacts to news, measured.
Amazon (AMZN)
How AMZN actually reacts to news, measured.
Alphabet (GOOG)
How GOOG actually reacts to news, measured.
Meta Platforms (META)
How META actually reacts to news, measured.
Broadcom (AVGO)
How AVGO actually reacts to news, measured.
JPMorgan Chase (JPM)
How JPM actually reacts to news, measured.
Visa (V)
How V actually reacts to news, measured.
Walmart (WMT)
How WMT actually reacts to news, measured.
Eli Lilly (LLY)
How LLY actually reacts to news, measured.
UnitedHealth Group (UNH)
How UNH actually reacts to news, measured.
Netflix (NFLX)
How NFLX actually reacts to news, measured.
Johnson & Johnson (JNJ)
How JNJ actually reacts to news, measured.
Exxon Mobil (XOM)
How XOM actually reacts to news, measured.
Home Depot (HD)
How HD actually reacts to news, measured.
Costco (COST)
How COST actually reacts to news, measured.
Mastercard (MA)
How MA actually reacts to news, measured.
Oracle (ORCL)
How ORCL actually reacts to news, measured.
Salesforce (CRM)
How CRM actually reacts to news, measured.
Bank of America (BAC)
How BAC actually reacts to news, measured.
Coca-Cola (KO)
How KO actually reacts to news, measured.
Walt Disney (DIS)
How DIS actually reacts to news, measured.
Browse all tickers
Every name we’ve measured, in one place.
How the numbers are made.
How is Marathon Bancorp, Inc.'s median reaction calculated?
Every labeled MBBC 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 135 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. 23% of MBBC'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 MBBC'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.