ISTR (Investar Holding) PEG Ratio: 3.33 (As of Aug. 21, 2026) — 51% Above Median

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Director of Data and Quant Analytics at GuruFocus
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Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

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 PEG Ratio?

Investar Holding ISTR +0.80% 57 PEG Ratio is 3.33 as of Aug. 21, 2026, which is 51% above its 10-year median of 2.20. 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 1,231 Banks companies, Investar Holding ranks worse than 77.17% on this metric.

PE Ratio without NRI / 5-Year Book Value Growth Rate*

PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The growth rate we use for banks is the 5-Year Book Value growth rate. As of today, Investar Holding's PE Ratio without NRI is 10.99. Investar Holding's 5-Year Book Value growth rate is 3.30%. Therefore, Investar Holding's PEG Ratio for today is 3.33.

* The 5-Year Book Value Growth Rate is the 5-year average Book Value per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.


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

ISTR' s PEG Ratio Range Over the Past 10 Years
Min: 0.7   Med: 2.2   Max: 13.42
Current: 3.33


During the past 13 years, Investar Holding's highest PEG Ratio was 13.42. The lowest was 0.70. And the median was 2.20.


ISTR's PEG Ratio is ranked worse than
77.17% of 1231 companies
in the Banks industry
Industry Median: 1.54 vs ISTR: 3.33

Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.


Investar Holding  (NAS:ISTR) PEG Ratio Explanation

To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.


Investar Holding PEG Ratio Related Terms


Investar Holding PEG Ratio Historical Data

* Premium members only.

The historical data trend for Investar Holding's PEG 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 PEG Ratio Chart

Investar Holding Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
PEG Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 2.28 1.32 4.74 9.38 3.91

Investar Holding Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
PEG 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 4.55 4.14 3.91 2.86 2.26

ISTR vs NEWT, AVBC, PCB: PEG Ratio Comparison

For the Banks - Regional subindustry, Investar Holding's PEG Ratio, along with its competitors' market caps and PEG 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 PEG Ratio vs Banks Industry

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

* The bar in red indicates where Investar Holding's PEG Ratio falls into.


ISTR
57GF Score
Investar Holding Corp ISTR
PEG Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Investar Holding PEG Ratio Calculation

PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The ratio we use is the 5-Year Book Value growth rate.

Investar Holding's PEG Ratio for today is calculated as

PEG Ratio=PE Ratio without NRI/5-Year Book Value Growth Rate*
=10.989051094891/3.30
=3.33

* 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.

* Note: The 5-Year Book Value Growth Rate is the 5-year average Book Value per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.

Frequently Asked Questions Learn more about PEG Ratio →
What does a PEG Ratio of 3.33 mean?
Investar Holding (ISTR) has a PEG Ratio of 3.33 as of Aug. 21, 2026. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Investar Holding and its competitors. This is 51% above median its historical median of 2.20. Over the past decade, Investar Holding's PEG Ratio has ranged from 0.70 to 13.42. According to the industry distribution chart, Investar Holding ranks #950 out of 1231 companies in the Banks industry, placing it in the top 77.2%.
Is Investar Holding's PEG Ratio too high?
Investar Holding's current PEG Ratio of 3.33 is 51% above median its 10-year median of 2.20. Over the past 10 years, this metric has ranged from a low of 0.70 to a high of 13.42. The Banks industry median PEG Ratio is 1.54. Investar Holding's value of 3.33 is 116.2% above this industry median. Based on the distribution chart, Investar Holding ranks #950 out of 1231 companies in the Banks industry, which is in the bottom quartile relative to peers. 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 PEG Ratio compare to NEWT and AVBC?
According to the Banks industry distribution chart, Investar Holding ranks #950 out of 1231 companies for PEG Ratio. This places Investar Holding in the lower half of its industry. The industry median PEG Ratio is 1.54. Investar Holding's value of 3.33 is 116.2% above this benchmark. Historically, Investar Holding's own PEG Ratio has ranged from 0.70 to 13.42 over the past decade. While the company's 10-year median is 2.20 vs. the industry median of 1.54, Investar Holding 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 PEG Ratio for a Banks company?
The median PEG Ratio among Banks companies is 1.54, based on 1,231 companies in the industry. Companies in the top quartile (top 25%) have a PEG Ratio significantly above this median, while those in the bottom quartile fall well below. However, PEG Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Investar Holding's current PEG Ratio of 3.33 is 116.2% 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 PEG Ratio mean?
A high PEG Ratio can signal that a stock is expensive relative to its fundamentals. Price-earnings to growth ratio is the ratio of price-earnings to a company's earnings growth rate. View historical data on Investar Holding and its competitors. For the Banks industry, the median PEG Ratio is 1.54 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Investar Holding's current PEG Ratio is 3.33, which is 51% above median its own 10-year median of 2.20. 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 PEG Ratio is 3.33, which is 51% above median its 10-year median of 2.20 and 116.2% above the Banks industry median of 1.54. 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 PEG Ratio calculated?
PEG Ratio is calculated from a company's financial statements. For Investar Holding (ISTR), the current PEG Ratio is 3.33 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:

  • PEG Ratio: 3.33 (51% above median its 10-year median of 2.20)
  • GF Value™: $21.18 vs. price of $30.11 (42.2% above fair value)
  • GF Score™: 57/100 with 6 warning signs
  • Industry Position: 116.2% above the Banks median (#950 of 1231)

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

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

$30.11
Price
$21.18
GF Value