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Marathon Bancorp, Inc. (MBBC) stock analysis

MBBCNasdaqSavings Institutions, Not Federally CharteredFiscal year ends June 30
Financials through Q1 FY2027, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 10, 2026Score 7/3013% above fair value
$14.18−0.29 (-2.00%)

Close on Nov 10, 2026Market cap $42.68MP/E 21.5Yield –

StockData Score

Prices as of Nov 11, 2026How the score works

Value1Growth2Performance2Health2Dividend0

Weak7 of 30 checks passed

Marathon Bancorp passes 7 of the 30 checks behind our score; 8 could not be run for lack of data and count as not passed. Each dot in the shape is one check — hover it for the numbers.

Valuation
1/6
Growth
2/6
Past performance
2/6
Financial health
2/6
Dividend
0/6

What stands out

  • Earnings grew over 5 years

    Net income grew 5.5% a year on average over the last five fiscal years.

  • Earnings growth accelerating

    Net income grew 477% over the last twelve months, against a 5-year average of 5.5% a year.

  • Well capitalized

    Equity is 18.7% of total assets; 8% or more is a comfortable cushion.

  • P/B below the industry

    Marathon Bancorp's price-to-book of 0.88 is below the Savings Institutions median of 1.04.

What to watch

  • Margin of safety under 20%

    The price is 13.5% above fair value, so there is no margin of safety.

  • Trading above fair value

    The share price of $14.18 is above our fair value estimate of $12.50.

  • Return on equity under 15%

    Return on equity was 3.8% over the last twelve months and averaged 2.6% over five years; we look for 15% on both.

  • Revenue growing under 10% a year

    Revenue grew 4.1% a year over the last three fiscal years, short of the 10% we look for.

Valuation1/6
  • P/E above its 5-year median

    Marathon Bancorp's P/E of 21.5 is above its own 5-year median of 17.5.

  • P/E above the industry

    Marathon Bancorp's P/E of 21.5 is above the Savings Institutions median of 13.7.

  • P/S above the industry

    Marathon Bancorp's price-to-sales of 4.55 is above the Savings Institutions median of 3.77.

  • P/B below the industry

    Marathon Bancorp's price-to-book of 0.88 is below the Savings Institutions median of 1.04.

  • Trading above fair value

    The share price of $14.18 is above our fair value estimate of $12.50.

  • Margin of safety under 20%

    The price is 13.5% above fair value, so there is no margin of safety.

Growth2/6
  • Revenue growing under 10% a year

    Revenue grew 4.1% a year over the last three fiscal years, short of the 10% we look for.

  • EPS growing under 10% a year

    Diluted EPS grew -5.8% a year over the last three fiscal years.

  • Earnings growth accelerating

    Net income grew 477% over the last twelve months, against a 5-year average of 5.5% a year.

  • Growing faster than the industry

    Revenue grew 28.0% over the last twelve months; the Savings Institutions median is 9.0%.

  • Company guidance

    No outlook found in earnings releases from the last twelve months.

  • Gross margin trend

    Banks and insurers do not report gross profit.

Past performance2/6
  • Return on equity under 15%

    Return on equity was 3.8% over the last twelve months and averaged 2.6% over five years; we look for 15% on both.

  • Return on assets under 1%

    Return on assets was 0.7%; for a bank or insurer, 1% or more is considered good.

  • Return on equity below the industry

    Marathon Bancorp's return on equity of 3.8% is below the Savings Institutions median of 6.1%.

  • Earnings grew over 5 years

    Net income grew 5.5% a year on average over the last five fiscal years.

  • Net margin above its 5-year average

    Net margin was 19.2% over the last twelve months, against a 5-year average of 11.3%.

  • Net margin below the industry

    Marathon Bancorp's net margin of 19.2% is below the Savings Institutions median of 20.3%.

Financial health2/6
  • Well capitalized

    Equity is 18.7% of total assets; 8% or more is a comfortable cushion.

  • Loans exceed deposits

    Loans equal 110% of deposits, so the bank relies on other borrowing.

  • Thin loan-loss reserve

    The allowance for credit losses is 0.8% of loans; we look for at least 1%.

  • High cost base

    Non-interest expense takes 75.8% of revenue; under 60% is efficient for a bank.

  • Deposits growing

    Deposits grew 10.6% over the past year.

  • Borrowings

    Needs debt and equity figures.

Dividend0/6
  • No dividend

    Marathon Bancorp has not paid a dividend in the last twelve months.

  • Yield against Treasuries

    No dividend.

  • Yield against the market

    No dividend.

  • Dividend stability

    No dividend.

  • Earnings cover

    No dividend.

  • Cash-flow cover

    No dividend.

Scores of similar companies

Our estimate per share

$12.50

The share price is 13% above this estimate.

20%+ below
Near fair value
20%+ above
$14.18Price$12.50Fair value
MethodMultiple usedOwn 5Y medianIndustry medianValue per shareWeight
P/E15.6×17.5×13.7×$10.3150%
P/B0.9×0.8×1.0×$14.6950%
Fair value$12.50100%

Valuation over time

Using the earnings and balance sheet published at each date, not today's.

  • P/E at month end
  • Own 5-year median 17.5
  • Savings Institutions median 13.7

An estimate from reported numbers and market multiples, not a price target or investment advice. It can be far off for companies whose profits are about to change sharply.

Market risk

From the past year of daily prices.

Liquidity

High risk

Average value traded per day
$21.64K
Value traded per 1% price move
$4.53K

Downside

Low risk

Typical loss in a bad month
8.0%
Volatility (annualized)
33%
Sharpe ratio, 1 year
0.86
Beta to the S&P 500 (5Y)
-0.08

Typical bad-month loss, week by week

25%: high

Margins

Share of revenue, fiscal years 2019 to 2026

Net margin

19.8%+1.0 pts over 5 years

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