ACNB (ACNB) Shiller PE Ratio: 17.31 (As of Sep. 12, 2026) — 27% Above Median

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ACNB ACNB Corp ACNB
62 GF Score
Price $65.10
GF Value $52.25
Valuation Modestly Overvalued
! 8 Warning Signs
View Full Analysis

What is ACNB Shiller PE Ratio?

ACNB ACNB +0.26% 62 Shiller PE Ratio is 17.31 as of Sep. 12, 2026, which is 27% above its 10-year median of 13.63. GuruFocus rates ACNB with a GF Score™ of 62/100 and a GF Value™ of $52.25 (Modestly Overvalued). The stock has 8 warning signs investors should review. Among 1,234 Banks companies, ACNB ranks worse than 69.53% on this metric.

As of today (2026-09-12), ACNB's current share price is $65.10. ACNB's E10 for the quarter that ended in Jun. 2026 was $3.76. ACNB's Shiller PE Ratio for today is 17.31.

The historical rank and industry rank for ACNB's Shiller PE Ratio or its related term are showing as below:

ACNB' s Shiller PE Ratio Range Over the Past 10 Years
Min: 9.62   Med: 13.63   Max: 22.98
Current: 17.29

During the past years, ACNB's highest Shiller PE Ratio was 22.98. The lowest was 9.62. And the median was 13.63.

ACNB's Shiller PE Ratio is ranked worse than
69.53% of 1234 companies
in the Banks industry
Industry Median: 13.935 vs ACNB: 17.29

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.

ACNB's adjusted earnings per share data for the three months ended in Jun. 2026 was $1.490. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $3.76 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


ACNB  (NAS:ACNB) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


ACNB Shiller PE Ratio Related Terms


ACNB Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for ACNB's Shiller PE Ratio 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.

ACNB Shiller PE Ratio Chart

ACNB Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 12.89 14.17 14.56 12.04 13.81

ACNB Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shiller PE Ratio 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 12.72 12.69 13.81 13.14 15.77

ACNB vs BHB, RRBI, THVB: Shiller PE Ratio Comparison

For the Banks - Regional subindustry, ACNB's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.


ACNB Shiller PE Ratio vs Banks Industry

For the Banks industry and Financial Services sector, ACNB's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where ACNB's Shiller PE Ratio falls into.


ACNB
62GF Score
ACNB Corp ACNB
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

ACNB Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

ACNB's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=65.10/3.76
=17.31

* 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.

ACNB's E10 for the quarter that ended in Jun. 2026 is calculated as:

For example, ACNB's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1.49/333.9520*333.9520
=1.490

Current CPI (Jun. 2026) = 333.9520.

ACNB Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 0.460 241.428 0.636
201612 0.424 241.432 0.586
201703 0.430 243.801 0.589
201706 0.450 244.955 0.613
201709 0.270 246.819 0.365
201712 0.358 246.524 0.485
201803 0.700 249.554 0.937
201806 0.780 251.989 1.034
201809 0.860 252.439 1.138
201812 0.750 251.233 0.997
201903 0.830 254.202 1.090
201906 0.920 256.143 1.199
201909 0.890 256.759 1.158
201912 0.720 256.974 0.936
202003 -0.140 258.115 -0.181
202006 0.670 257.797 0.868
202009 0.790 260.280 1.014
202012 0.810 260.474 1.038
202103 0.860 264.877 1.084
202106 0.980 271.696 1.205
202109 0.840 274.310 1.023
202112 0.520 278.802 0.623
202203 0.760 287.504 0.883
202206 0.990 296.311 1.116
202209 1.200 296.808 1.350
202212 1.200 296.797 1.350
202303 1.060 301.836 1.173
202306 1.120 305.109 1.226
202309 1.060 307.789 1.150
202312 0.480 306.746 0.523
202403 0.800 312.332 0.855
202406 1.320 314.175 1.403
202409 0.840 315.301 0.890
202412 0.770 315.605 0.815
202503 -0.030 319.799 -0.031
202506 1.110 322.561 1.149
202509 1.420 324.800 1.460
202512 1.040 324.054 1.072
202603 1.320 330.213 1.335
202606 1.490 333.952 1.490

Add all the adjusted EPS together and divide 10 will get our E10.

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.

Frequently Asked Questions Learn more about Shiller PE Ratio →
What does a Shiller PE Ratio of 17.31 mean?
ACNB (ACNB) has a Shiller PE Ratio of 17.31 as of Sep. 12, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on ACNB and its competitors. This is 27% above median its historical median of 13.63. Over the past decade, ACNB's Shiller PE Ratio has ranged from 9.62 to 22.98. According to the industry distribution chart, ACNB ranks #858 out of 1234 companies in the Banks industry, placing it in the top 69.5%.
Is ACNB's Shiller PE Ratio too high?
ACNB's current Shiller PE Ratio of 17.31 is 27% above median its 10-year median of 13.63. Over the past 10 years, this metric has ranged from a low of 9.62 to a high of 22.98. The Banks industry median Shiller PE Ratio is 13.94. ACNB's value of 17.31 is 24.2% above this industry median. Based on the distribution chart, ACNB ranks #858 out of 1234 companies in the Banks industry, which is below the industry midpoint. Overall, ACNB has a GF Score™ of 62/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does ACNB's Shiller PE Ratio compare to BHB and RRBI?
According to the Banks industry distribution chart, ACNB ranks #858 out of 1234 companies for Shiller PE Ratio. This places ACNB in the lower half of its industry. The industry median Shiller PE Ratio is 13.94. ACNB's value of 17.31 is 24.2% above this benchmark. Historically, ACNB's own Shiller PE Ratio has ranged from 9.62 to 22.98 over the past decade. While the company's 10-year median is 13.63 vs. the industry median of 13.94, ACNB has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shiller PE Ratio for a Banks company?
The median Shiller PE Ratio among Banks companies is 13.94, based on 1,234 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. ACNB's current Shiller PE Ratio of 17.31 is 24.2% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on ACNB and its competitors. For the Banks industry, the median Shiller PE Ratio is 13.94 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. ACNB's current Shiller PE Ratio is 17.31, which is 27% above median its own 10-year median of 13.63. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is ACNB stock overvalued right now?
Based on GuruFocus' analysis, ACNB (ACNB) is currently considered Modestly Overvalued. The stock's GF Value™ is $52.25, compared to a current price of $65.10 — trading 24.6% above its estimated fair value. The current Shiller PE Ratio is 17.31, which is 27% above median its 10-year median of 13.63 and 24.2% above the Banks industry median of 13.94. ACNB's overall GF Score™ is 62/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For ACNB (ACNB), the current Shiller PE Ratio is 17.31 as of Sep. 12, 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 ACNB (ACNB) Overvalued in 2026?

Based on GuruFocus' analysis, ACNB stock appears to be overvalued. The current stock price of $65.10 is trading 24.6% above its estimated GF Value™ of $52.25. GuruFocus considers ACNB to be Modestly Overvalued.

Key valuation signals for ACNB:

  • Shiller PE Ratio: 17.31 (27% above median its 10-year median of 13.63)
  • GF Value™: $52.25 vs. price of $65.10 (24.6% above fair value)
  • GF Score™: 62/100 with 8 warning signs
  • Industry Position: 24.2% above the Banks median (#858 of 1234)

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


ACNB Business Description

Address 16 Lincoln Square, P.O. BOX 3129, Gettysburg, PA, USA, 17325
ACNB Corp is the financial holding company. Through its wholly-owned subsidiaries, it provides a full range of retail and commercial financial services in Pennsylvania and Maryland through its network of community banking offices. It also provides property, casualty, health, life and disability insurance serving personal and commercial clients through offices in Westminster, Maryland, and Gettysburg, Pennsylvania and is licensed to do business. The corporation has two reporting segments; the Banking segment which generates the majority of the revenue from banking and wealth management services, including trust and retail brokerage; and ACNB Insurance Services segment which offers a broad range of property and casualty, life and health insurance to both commercial and individual clients.
62GF Score

Get the complete analysis for ACNB

Shiller PE Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$65.10
Price
$52.25
GF Value