ISTR (Investar Holding) Cyclically Adjusted PB Ratio: 1.16 (As of Aug. 21, 2026) — 41% Above Median

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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
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What is Investar Holding Cyclically Adjusted PB Ratio?

Investar Holding ISTR +0.80% 57 Cyclically Adjusted PB Ratio is 1.16 as of Aug. 21, 2026, which is 41% above its 10-year median of 0.82. 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. Among 1,281 Banks companies, Investar Holding ranks better than 57.53% on this metric.

As of today (2026-08-21), Investar Holding's current share 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 for today is 1.16.

The historical rank and industry rank for Investar Holding's Cyclically Adjusted PB Ratio or its related term are showing as below:

ISTR' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.46   Med: 0.82   Max: 1.21
Current: 1.16

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

ISTR's Cyclically Adjusted PB Ratio is ranked better than
57.53% of 1281 companies
in the Banks industry
Industry Median: 1.28 vs ISTR: 1.16

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 adjusted book value per share data 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.

Shiller PE for Stocks: The True Measure of Stock Valuation


Investar Holding  (NAS:ISTR) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Investar Holding Cyclically Adjusted PB Ratio Related Terms


Investar Holding Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Investar Holding's Cyclically Adjusted PB 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.

Investar Holding Cyclically Adjusted PB Ratio Chart

Investar Holding Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 1.02 0.67 0.93 1.07

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 PB 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 0.79 0.94 1.07 1.07 1.15

ISTR vs NEWT, AVBC, PCB: Cyclically Adjusted PB Ratio 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 PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Investar Holding Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Investar Holding's Cyclically Adjusted PB Ratio for 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.

Investar Holding's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

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.

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.

What does a Cyclically Adjusted PB Ratio of 1.16 mean?
Investar Holding (ISTR) has a Cyclically Adjusted PB Ratio of 1.16 as of Aug. 21, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Investar Holding and its competitors. This is 41% above median its historical median of 0.82. Over the past decade, Investar Holding's Cyclically Adjusted PB Ratio has ranged from 0.46 to 1.21. According to the industry distribution chart, Investar Holding ranks #544 out of 1281 companies in the Banks industry, placing it in the top 42.5%.
Is Investar Holding's Cyclically Adjusted PB Ratio too high?
Investar Holding's current Cyclically Adjusted PB Ratio of 1.16 is 41% above median its 10-year median of 0.82. Over the past 10 years, this metric has ranged from a low of 0.46 to a high of 1.21. The Banks industry median Cyclically Adjusted PB Ratio is 1.28. Investar Holding's value of 1.16 is 9.4% below this industry median. Based on the distribution chart, Investar Holding ranks #544 out of 1281 companies in the Banks industry, which is above the industry midpoint. 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 PB Ratio compare to NEWT and AVBC?
According to the Banks industry distribution chart, Investar Holding ranks #544 out of 1281 companies for Cyclically Adjusted PB Ratio. This puts Investar Holding in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.28. Investar Holding's value of 1.16 is 9.4% below this benchmark. Historically, Investar Holding's own Cyclically Adjusted PB Ratio has ranged from 0.46 to 1.21 over the past decade. While the company's 10-year median is 0.82 vs. the industry median of 1.28, Investar Holding has consistently been below 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 Cyclically Adjusted PB Ratio for a Banks company?
The median Cyclically Adjusted PB Ratio among Banks companies is 1.28, based on 1,281 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Investar Holding's current Cyclically Adjusted PB Ratio of 1.16 is 9.4% below 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Investar Holding and its competitors. For the Banks industry, the median Cyclically Adjusted PB Ratio is 1.28 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Investar Holding's current Cyclically Adjusted PB Ratio is 1.16, which is 41% above median its own 10-year median of 0.82. 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 PB Ratio is 1.16, which is 41% above median its 10-year median of 0.82 and 9.4% below the Banks industry median of 1.28. 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 PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Investar Holding (ISTR), the current Cyclically Adjusted PB Ratio is 1.16 as of Aug. 21, 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 PB Ratio: 1.16 (41% above median its 10-year median of 0.82)
  • GF Value™: $21.18 vs. price of $30.11 (42.2% above fair value)
  • GF Score™: 57/100 with 6 warning signs
  • Industry Position: 9.4% below the Banks median (#544 of 1281)

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

$30.11
Price
$21.18
GF Value