ISTR (Investar Holding) Cyclically Adjusted Book per Share: $26.02 (As of Jun. 2026)

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ISTR Investar Holding Corp ISTR
57 GF Score
Price $30.11
GF Value $21.18
Valuation Significantly Overvalued
! 6 Warning Signs
View Full Analysis

What is Investar Holding Cyclically Adjusted Book per Share?

Investar Holding ISTR +0.80% 57 Cyclically Adjusted Book per Share is $26.02 as of Jun. 2026. GuruFocus rates ISTR with a GF Score™ of 57/100 and a GF Value™ of $21.18 (Significantly Overvalued). The stock has 6 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.

Investar Holding's adjusted book value per share for the three months ended in Jun. 2026 was $28.292. 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 $26.02 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Investar Holding's average Cyclically Adjusted Book Growth Rate was 6.30% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 5.80% per year. 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.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of Investar Holding was 5.80% per year. The lowest was 5.80% per year. And the median was 5.80% per year.

As of today (2026-08-21), Investar Holding's current stock price is $30.11. Investar Holding's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $26.02. Investar Holding's Cyclically Adjusted PB Ratio of today is 1.16.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Investar Holding was 1.21. The lowest was 0.46. And the median was 0.82.


Investar Holding  (NAS:ISTR) 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.

Investar Holding's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=30.11/26.02
=1.16

* 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 13 years, the highest Cyclically Adjusted PB Ratio of Investar Holding was 1.21. The lowest was 0.46. And the median was 0.82.


Be Aware

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


Investar Holding Cyclically Adjusted Book per Share Related Terms


Investar Holding Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Investar Holding'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.

Investar Holding Cyclically Adjusted Book per Share Chart

Investar Holding Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 21.06 22.09 23.64 24.92

Investar Holding Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 24.47 24.81 24.92 25.57 26.02

ISTR vs NEWT, AVBC, PCB: Cyclically Adjusted Book per Share Comparison

For the Banks - Regional subindustry, Investar Holding'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.


Investar Holding Cyclically Adjusted PB Ratio vs Banks Industry

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

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


ISTR
57GF Score
Investar Holding Corp ISTR
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Investar Holding 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, Investar Holding's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=28.292/333.9520*333.9520
=28.292

Current CPI (Jun. 2026) = 333.9520.

Investar Holding Quarterly Data

Book Value per Share CPI Adj_Book
201609 15.927 241.428 22.031
201612 15.877 241.432 21.961
201703 16.845 243.801 23.074
201706 17.107 244.955 23.322
201709 17.562 246.819 23.762
201712 18.153 246.524 24.591
201803 18.223 249.554 24.386
201806 18.498 251.989 24.515
201809 18.689 252.439 24.724
201812 19.218 251.233 25.546
201903 20.041 254.202 26.328
201906 20.678 256.143 26.959
201909 21.194 256.759 27.566
201912 21.549 256.974 28.004
202003 21.323 258.115 27.588
202006 21.836 257.797 28.287
202009 22.321 260.280 28.639
202012 22.932 260.474 29.401
202103 23.788 264.877 29.991
202106 24.077 271.696 29.594
202109 22.849 274.310 27.817
202112 23.455 278.802 28.095
202203 22.663 287.504 26.324
202206 21.882 296.311 24.662
202209 20.776 296.808 23.376
202212 21.792 296.797 24.520
202303 22.064 301.836 24.412
202306 22.211 305.109 24.311
202309 21.341 307.789 23.155
202312 23.263 306.746 25.326
202403 23.206 312.332 24.812
202406 23.420 314.175 24.894
202409 24.984 315.301 26.462
202412 24.552 315.605 25.979
202503 25.633 319.799 26.767
202506 26.009 322.561 26.927
202509 26.963 324.800 27.723
202512 27.627 324.054 28.471
202603 27.966 330.213 28.283
202606 28.292 333.952 28.292

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 $26.02 mean?
Investar Holding (ISTR) has a Cyclically Adjusted Book per Share of $26.02 as of Jun. 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 Investar Holding and its competitors.
Is Investar Holding's Cyclically Adjusted Book per Share too high?
Investar Holding's current Cyclically Adjusted Book per Share is $26.02. Overall, Investar Holding has a GF Score™ of 57/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Investar Holding's Cyclically Adjusted Book per Share compare to NEWT and AVBC?
Investar Holding's Cyclically Adjusted Book per Share of $26.02 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 Investar Holding and its competitors. Investar Holding's current Cyclically Adjusted Book per Share is $26.02. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Investar Holding stock overvalued right now?
Based on GuruFocus' analysis, Investar Holding (ISTR) is currently considered Significantly Overvalued. The stock's GF Value™ is $21.18, compared to a current price of $30.11 — trading 42.2% above its estimated fair value. The current Cyclically Adjusted Book per Share is $26.02. Investar Holding's overall GF Score™ is 57/100 with 6 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 Investar Holding (ISTR), the current Cyclically Adjusted Book per Share is $26.02 as of Jun. 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 Investar Holding (ISTR) Overvalued in 2026?

Based on GuruFocus' analysis, Investar Holding stock appears to be overvalued. The current stock price of $30.11 is trading 42.2% above its estimated GF Value™ of $21.18. GuruFocus considers Investar Holding to be Significantly Overvalued.

Key valuation signals for ISTR:

  • Cyclically Adjusted Book per Share: $26.02
  • GF Value™: $21.18 vs. price of $30.11 (42.2% above fair value)
  • GF Score™: 57/100 with 6 warning signs

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


Investar Holding Business Description

Address 10500 Coursey Boulevard, Baton Rouge, LA, USA, 70816
Investar Holding Corp is a U.S.-based financial holding company. Through its subsidiaries, it offers a variety of commercial and retail lending products throughout its market areas, including business loans to small to medium-sized businesses, as well as loans to individuals. It has business operations spread across the United States and serves its customers through several service branches. The bank also offers cashier's checks, direct deposit of payroll and Social Security checks, night depository, bank-by-mail, automated teller machines with deposit automation, and debit cards.
57GF Score

Get the complete analysis for ISTR

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

$30.11
Price
$21.18
GF Value