ABBB (Auburn Bancorp) Cyclically Adjusted Book per Share: $15.99 (As of Mar. 2026)


ABBB Auburn Bancorp Inc ABBB
57 GF Score
Price $9.25
GF Value $9.71
Valuation Fairly Valued
! 2 Warning Signs
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What is Auburn Bancorp Cyclically Adjusted Book per Share?

Auburn Bancorp ABBB +1.09% 57 Cyclically Adjusted Book per Share is $15.99 as of Mar. 2026. GuruFocus rates ABBB with a GF Score™ of 57/100 and a GF Value™ of $9.71 (Fairly Valued). The stock has 2 warning signs investors should review.

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

Auburn Bancorp's adjusted book value per share for the three months ended in Mar. 2026 was $13.917. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $15.99 for the trailing ten years ended in Mar. 2026.

Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

As of today (2026-07-01), Auburn Bancorp's current stock price is $9.25. Auburn Bancorp's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $15.99. Auburn Bancorp's Cyclically Adjusted PB Ratio of today is 0.58.

During the past 12 years, the highest Cyclically Adjusted PB Ratio of Auburn Bancorp was 0.65. The lowest was 0.55. And the median was 0.58.


Auburn Bancorp  (OTCPK:ABBB) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Auburn Bancorp's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=9.25/15.99
=0.58

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

During the past 12 years, the highest Cyclically Adjusted PB Ratio of Auburn Bancorp was 0.65. The lowest was 0.55. And the median was 0.58.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


Auburn Bancorp Cyclically Adjusted Book per Share Related Terms


Auburn Bancorp Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Auburn Bancorp's Cyclically Adjusted Book per Share can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Auburn Bancorp Cyclically Adjusted Book per Share Chart

Auburn Bancorp Annual Data
Trend Jun09 Jun10 Jun11 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 15.72

Auburn Bancorp Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 15.72 15.77 15.75 15.99

ABBB vs MFBI, LWCL, EWSB: Cyclically Adjusted Book per Share Comparison

For the Banks - Regional subindustry, Auburn Bancorp's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


Auburn Bancorp Cyclically Adjusted PB Ratio vs Banks Industry

For the Banks industry and Financial Services sector, Auburn Bancorp's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Auburn Bancorp's Cyclically Adjusted PB Ratio falls into.


ABBB
57GF Score
Auburn Bancorp Inc ABBB
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Auburn Bancorp Cyclically Adjusted Book per Share Calculation

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted Book per Share.

Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.

For example, Auburn Bancorp's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book= Book Value per Share /CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=13.917/330.2130*330.2130
=13.917

Current CPI (Mar. 2026) = 330.2130.

Auburn Bancorp Quarterly Data

Book Value per Share CPI Adj_Book
200712 0.000 210.036 0.000
200803 8.990 213.528 13.903
200806 8.982 218.815 13.555
200809 11.571 218.783 17.464
200812 11.531 210.228 18.112
200903 11.565 212.709 17.954
200906 11.738 215.693 17.970
200909 11.716 215.969 17.914
200912 11.831 215.949 18.091
201003 11.913 217.631 18.076
201006 12.028 217.965 18.222
201009 12.026 218.439 18.180
201012 12.225 219.179 18.418
201103 12.105 223.467 17.887
201106 12.167 225.722 17.799
201109 12.276 226.889 17.866
201112 12.046 225.672 17.626
201906 14.716 256.143 18.971
202006 15.549 257.797 19.917
202103 15.909 264.877 19.833
202106 16.117 271.696 19.588
202109 0.000 274.310 0.000
202112 16.159 278.802 19.139
202203 14.726 287.504 16.914
202206 13.567 296.311 15.119
202209 11.932 296.808 13.275
202212 12.268 296.797 13.649
202303 12.720 301.836 13.916
202306 12.340 305.109 13.355
202309 11.143 307.789 11.955
202312 12.965 306.746 13.957
202403 12.485 312.332 13.200
202406 12.358 314.175 12.989
202409 10.851 315.301 11.364
202412 12.217 315.605 12.782
202503 12.791 319.799 13.208
202506 12.998 322.561 13.306
202509 13.634 324.800 13.861
202512 14.122 324.054 14.390
202603 13.917 330.213 13.917

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of $15.99 mean?
Auburn Bancorp (ABBB) has a Cyclically Adjusted Book per Share of $15.99 as of Mar. 2026. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Auburn Bancorp and its competitors.
Is Auburn Bancorp's Cyclically Adjusted Book per Share too high?
Auburn Bancorp's current Cyclically Adjusted Book per Share is $15.99. Overall, Auburn Bancorp has a GF Score™ of 57/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Auburn Bancorp's Cyclically Adjusted Book per Share compare to MFBI and LWCL?
Auburn Bancorp's Cyclically Adjusted Book per Share of $15.99 can be compared against companies in the Banks industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for a Banks company?
A good Cyclically Adjusted Book per Share depends on the Banks industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on Auburn Bancorp and its competitors. Auburn Bancorp's current Cyclically Adjusted Book per Share is $15.99. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Auburn Bancorp stock overvalued right now?
Based on GuruFocus' analysis, Auburn Bancorp (ABBB) is currently considered Fairly Valued. The stock's GF Value™ is $9.71, compared to a current price of $9.25 — trading 4.7% below its estimated fair value. The current Cyclically Adjusted Book per Share is $15.99. Auburn Bancorp's overall GF Score™ is 57/100 with 2 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For Auburn Bancorp (ABBB), the current Cyclically Adjusted Book per Share is $15.99 as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is Auburn Bancorp (ABBB) Overvalued in 2026?

Based on GuruFocus' analysis, Auburn Bancorp stock appears to be undervalued. The current stock price of $9.25 is trading 4.7% below its estimated GF Value™ of $9.71. GuruFocus considers Auburn Bancorp to be Fairly Valued.

Key valuation signals for ABBB:

  • Cyclically Adjusted Book per Share: $15.99
  • GF Value™: $9.71 vs. price of $9.25 (4.7% below fair value)
  • GF Score™: 57/100 with 2 warning signs

No single metric tells the full story. See the ABBB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Auburn Bancorp Business Description

Address 256 Court Street, P.O. Box 3157, Auburn, ME, USA, 04212
Auburn Bancorp Inc., through its subsidiary, Auburn Savings Bank, FSB, grants residential, consumer. The company serves individuals, families, and businesses. It offers deposits, loans, cards, and various other online banking services.
57GF Score

Get the complete analysis for ABBB

Cyclically Adjusted Book per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$9.25
Price
$9.71
GF Value