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Research & education only — not financial advice.TENK is not a registered investment adviser; calls are impersonal, generated from SEC filings and a delayed/third-party price feed, and may be wrong or out of date. The operator and an affiliated trading operation may hold or trade the securities TENK rates — see Disclosures. Do your own research.

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Home›Stocks›MBBC
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MBBC

Marathon Bancorp, Inc. /MD/

Hold
$15.25
▼ -0.97%
$15.25▲ +52.65%
over 1Y
L $9.96H $15.49
Earnings Dividend Split Congress buy Congress sellGrouped by date · hover a pin to expand
Today-1.0%
1W+0.0%
1M+11.2%
3M+7.9%
YTD+25.1%
1Y+52.6%
OverviewFinancialsValuationQualityTimelineFilings
Rating
Hold
Quality
C+
Valuation
Overvalued
Filings
Clean
Hold
Conviction
Horizon
Long (>12mo)

Overcapitalized micro-cap thrift trading right at book value with almost no earnings power — a capital-return/M&A story, not an earnings story.

Price / diluted EPS 762.5 · FY2025

The read

Middling fundamentals and a rich price (~95% above fair value) leave little margin of safety — a wait-and-see.

Marathon Bancorp is a tiny Maryland thrift holding company (formed December 2020 as a mid-tier of a recently-converted savings institution) with $239M in assets and a market cap near $45M. The defining feature is capital, not profit: stockholders' equity jumped 46.1% to $45.7M while shares outstanding rose 37.6% to 2.94M — the fingerprint of a stock-conversion capital raise. That leaves equity at roughly 19% of assets, extraordinarily overcapitalized for a bank, and puts the $15.25 price almost exactly at book value (~$15.54/share, ~0.98x). At that price you are paying for the balance sheet, not the income statement.

The income statement is the problem. FY2025 net income was $42.4K on $239M of assets — a 0.1% return on equity — after the company actually lost $187K in FY2024. The '+122.7%' net-income growth and 762.5x P/E are arithmetic noise off a near-zero base; earnings have deteriorated from $1.67M in FY2023 to essentially nothing. The 4.23x liabilities/equity ratio looks fine for a bank (deposits are liabilities), but it underscores that this franchise cannot yet make its capital work. Operating cash flow of $1.45M and a 92% cut in capex show a small, cash-generative but sub-scale operation coasting rather than growing earnings.

Is MBBC a buy? The one-page verdict, explained →

The options angle

model · matches our verdict
Covered call~90d expiry
  • Long 100 shares @ ~15.25
  • Short call 16 @ ~0.62 est
debit $1,463max +$137max −$1,462BE 14.63

HOLD means own it, don't chase it — harvesting premium against the position matches the verdict.

Open in the calculator →

Educational template, not a trade recommendation. Strikes and premiums are Black-Scholes model estimates from the last close and 30-day realized volatility — real chains, spreads and IV will differ. Options involve substantial risk.

Financials · annual, by fiscal year

Line itemFY21FY22FY23FY24FY25
Revenue—————
Gross profit—————
Operating income—————
Net income$1.37M$1.33M$1.67M-$187K$42.4K
Diluted EPS$0.64$0.62$0.79-$0.07$0.02
Net margin—————

Annual figures from SEC 10-K XBRL filings. Open the filing links below for full statement detail.

Key statistics

Valuation

Enterprise value—
EV / EBITDA—
EV / Sales—
EV / FCF—
P / FCF35.4
PEG (trailing)6.21
Earnings yield0.1%
FCF yield2.8%

Quality & risk

ROIC (est.)—
Free cash flow$1.27M
Total debt$10.4M
Net cash$4.01M

Capital returns

Buyback yield0.2%
Dividend yield (est.)—
Shareholder yield0.2%
Shares Δ YoY+37.6%

Computed from SEC XBRL annual figures + the current quote. EV and ROIC use long-term + current debt where filed; estimates, not investment advice.

Disclosure timeline

SEC · 8-Ks + reports
Recent disclosure tone has been improving.
  1. 8-K Officer / director change2026-05-28

    Annual meeting votes certified; director/officer change disclosed (Items 5.02/5.07)

  2. 10-Q Quarterly report2026-05-13

    Q1'26: assets ~$239M, equity lifted by stock offering; ROE still very thin

  3. 8-K Other event2026-04-24

    Annual meeting proxy: director elections, auditor ratification, executive pay

  4. DEF 14A Proxy statement2026-04-24

    Annual meeting proxy: director elections, auditor ratification, executive pay

  5. 10-Q Quarterly report2026-02-11

    Interim quarter: modest profit, capital-heavy balance sheet post-offering

  6. 8-K Shareholder vote2025-11-18

    Shareholder meeting voting results reported (Item 5.07)

  7. 10-Q Quarterly report2025-11-12

    Interim quarter shows slim earnings; assets/deposits growing modestly

  8. DEF 14A Proxy statement2025-10-15

    Annual meeting proxy: board slate and governance proposals

  9. 10-K Annual report2025-09-26

    FY25 swung to profit ($42K vs -$187K loss); equity +46% on stock offering

Recent filings

all on EDGAR ↗
SCHEDULE 13G/AFiling2026-07-01open ↗SCHEDULE 13GFiling2026-07-01open ↗4Period ending 2026-06-282026-06-30open ↗4Period ending 2026-06-282026-06-30open ↗4Period ending 2026-06-282026-06-30open ↗4Period ending 2026-06-282026-06-30open ↗4Period ending 2026-06-282026-06-30open ↗11-KPeriod ending 2025-12-312026-06-29open ↗4Period ending 2026-06-162026-06-17open ↗4Period ending 2026-06-152026-06-16open ↗4Period ending 2026-06-152026-06-16open ↗4Period ending 2026-06-152026-06-16open ↗

Quality score

C+
ValueGrowthProfitHealthMom.
ValueF
GrowthA+
ProfitabilityD
Financial healthA-
MomentumA
  • ✓Profitable (positive net income)
  • ✗Return on equity above 15%
  • ✗P/E below 25

Fair value est.

$0.75

Overvalued -95% vs price

cheapfair valueexpensive

Modified Graham: EPS $0.02 × (8.5 + 1.5 × 22.0% growth) × 0.90 quality = 37.4× multiple. An estimate, not a price target.

9.9652-week15.49
Revenue
—
Net margin
—
ROE
0.1%
P/E
762.5

SEC fundamentals · FY 2025

'21'22'23'24'25

■ revenue · ■ net income, by fiscal year

Net income$42.4K+122.7%
Diluted EPS$0.02+128.6%
Cash & equivalents$14.4M+37.4%
Total assets$239M+8.9%
Total liabilities$193M+2.7%
Stockholders' equity$45.7M+46.1%
L/E: 4.23x

Frequently asked

Is Marathon Bancorp, Inc. /MD/ (MBBC) a buy?
MBBC currently carries a Hold rating with 2/5 conviction, derived from its latest SEC filings. Overcapitalized micro-cap thrift trading right at book value with almost no earnings power — a capital-return/M&A story, not an earnings story.
What is MBBC's fair value?
A Modified-Graham model based on MBBC's SEC fundamentals estimates a fair value of about $0.75. It is an estimate from reported earnings, not a price target.
Is MBBC overvalued or undervalued?
Against a Modified-Graham fair-value estimate, MBBC currently appears overvalued relative to its SEC-grounded earnings power.
What is Marathon Bancorp, Inc. /MD/'s quality score?
MBBC scores 62.74819990136446/100 (grade C+) on a SEC-grounded quality model spanning value, growth, profitability, financial health and momentum.

Sources: SEC EDGAR (CIK 0001835385, latest 10-Q filed 2026-05-13) · EODHD · Proprietary analysis · as of 7/4/2026, 3:44:37 AM.

›About this recommendation — produced by TENK/calls (tenkcalls.com), Luxembourg · not investment advice

AI-generated analysis, produced by our proprietary engine from SEC filing data.

Investment recommendation produced by TENK/calls (tenkcalls.com), Luxembourg. Completed Jul 3, 2026, 11:44 PM ET. Ratings & methodology: definitions · All recommendations to date: track record · Conflicts: disclosures. Not investment advice.

Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.

Insider activity

Form 4 · SEC

Last 90 days: 1 open-market buy · 0 sales

2026-06-28
Cornish Terry
SVP and CCO
Tax247.00 @ $15.49$3.83K
2026-06-28
Knopf Michelle
EVP and COO
Tax225.00 @ $15.49$3.49K
2026-06-28
Zillges Nicholas W
President and CEO
Tax1.27K @ $15.49$19.7K
2026-06-28
Spatz Nora
EVP and CAO
Tax503.00 @ $15.49$7.79K
2026-06-28
Selting-Buchberger Joy
SVP and CFO
Tax522.00 @ $15.49$8.09K
2026-06-16
Zillges Nicholas W
President and CEO
Buy970.00 @ $15.00$14.6K
2026-06-15
Werth Ann M
Director
Award3.39K
2026-06-15
Wimmer Timothy R
Director
Award3.39K

Vs tracked universe

compare →

1195 tracked peers · median

TENK Score63 vs 67
Revenue growth— vs 7.5%
Net margin— vs 10.0%
Return on equity0.1% vs 12.0%
P/E762.5 vs 26.2