OTTR (Otter Tail) Piotroski F-Score: 5 (As of Aug. 09, 2026) — 17% Below Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
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.

OTTR Otter Tail Corp OTTR
87 GF Score
Price $93.79
GF Value $82.81
Valuation Modestly Overvalued
! 8 Warning Signs
View Full Analysis

What is Otter Tail Piotroski F-Score?

Otter Tail OTTR +0.80% 87 Piotroski F-Score is 5 as of Aug. 09, 2026, which is 17% below its 10-year median of 6.00. GuruFocus rates OTTR with a GF Score™ of 87/100 and a GF Value™ of $82.81 (Modestly Overvalued). The stock has 8 warning signs investors should review. Among 543 Conglomerates companies, Otter Tail ranks better than 50.64% on this metric.

The zones of discrimination were as such:

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Otter Tail has an F-score of 5 indicating the company's financial situation is typical for a stable company.

The historical rank and industry rank for Otter Tail's Piotroski F-Score or its related term are showing as below:

OTTR' s Piotroski F-Score Range Over the Past 10 Years
Min: 4   Med: 6   Max: 8
Current: 5

During the past 13 years, the highest Piotroski F-Score of Otter Tail was 8. The lowest was 4. And the median was 6.

Otter Tail  (NAS:OTTR) Piotroski F-Score Explanation

The developer of the system is Joseph D. Piotroski is relatively unknown accounting professor who shuns publicity and rarely gives interviews.

He graduated from the University of Illinois with a B.S. in accounting in 1989, received an M.B.A. from Indiana University in 1994. Five years later, in 1999, after earning a Ph.D. in accounting from the University of Michigan, he became an associate professor of accounting at the University of Chicago.

In 2000, he wrote a research paper called "Value Investing: The Use of Historical Financial Statement Information to Separate Winners from Losers" (pdf).

He wanted to see if he can develop a system (using a simple nine-point scoring system) that can increase the returns of a strategy of investing in low price to book (referred to in the paper as high book to market) value companies.

What he found was something that exceeded his most optimistic expectations.

Buying only those companies that scored highest (8 or 9) on his nine-point scale, or F-Score as he called it, over the 20 year period from 1976 to 1996 led to an average out-performance over the market of 13.4%.

Even more impressive were the results of a strategy of investing in the highest F-Score companies (8 or 9) and shorting companies with the lowest F-Score (0 or 1).

Over the same period from 1976 to 1996 (20 years) this strategy led to an average yearly return of 23%, substantially outperforming the average S&P 500 index return of 15.83% over the same period.


Otter Tail Piotroski F-Score Related Terms


Otter Tail Piotroski F-Score Historical Data

* Premium members only.

The historical data trend for Otter Tail's Piotroski F-Score 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.

Otter Tail Piotroski F-Score Chart

Otter Tail Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Piotroski F-Score
Get a 7-Day Free Trial Premium Member Only Premium Member Only 7.00 7.00 5.00 5.00 5.00

Otter Tail Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Piotroski F-Score 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 5.00 4.00 5.00 4.00 5.00

OTTR vs SEB, GHC, TTI: Piotroski F-Score Comparison

For the Conglomerates subindustry, Otter Tail's Piotroski F-Score, along with its competitors' market caps and Piotroski F-Score 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.


Otter Tail Piotroski F-Score vs Conglomerates Industry

For the Conglomerates industry and Industrials sector, Otter Tail's Piotroski F-Score distribution charts can be found below:

* The bar in red indicates where Otter Tail's Piotroski F-Score falls into.


OTTR
87GF Score
Otter Tail Corp OTTR
Piotroski F-Score is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

How is the Piotroski F-Score calculated?

* 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.

This Year (Jun26) TTM:Last Year (Jun25) TTM:
Net Income was 78.292 + 51.774 + 72.61 + -7.607 = $195 Mil.
Cash Flow from Operations was 129.57 + 97.036 + 70.611 + 112.1 = $409 Mil.
Revenue was 325.563 + 308.099 + 347.026 + 334.383 = $1,315 Mil.
Gross Profit was 148.284 + 127.717 + 141.449 + 137.399 = $555 Mil.
Average Total Assets from the begining of this year (Jun25)
to the end of this year (Jun26) was
(3765.288 + 3843.823 + 3964.279 + 4152.809 + 4293.605) / 5 = $4003.9608 Mil.
Total Assets at the begining of this year (Jun25) was $3,765 Mil.
Long-Term Debt & Capital Lease Obligation was $1,133 Mil.
Total Current Assets was $837 Mil.
Total Current Liabilities was $491 Mil.
Net Income was 85.479 + 54.85 + 68.099 + 77.728 = $286 Mil.

Revenue was 338.033 + 303.111 + 337.353 + 333.043 = $1,312 Mil.
Gross Profit was 157.126 + 122.506 + 138.894 + 148.484 = $567 Mil.
Average Total Assets from the begining of last year (Jun24)
to the end of last year (Jun25) was
(3460.783 + 3566.739 + 3652.082 + 3696.794 + 3765.288) / 5 = $3628.3372 Mil.
Total Assets at the begining of last year (Jun24) was $3,461 Mil.
Long-Term Debt & Capital Lease Obligation was $1,043 Mil.
Total Current Assets was $674 Mil.
Total Current Liabilities was $203 Mil.

*Note: If the latest quarterly/semi-annual/annual total assets data is 0, then we will use previous quarterly/semi-annual/annual data for all the items in the balance sheet.

Profitability

Question 1. Return on Assets (ROA)

Net income before extraordinary items for the year divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Otter Tail's current Net Income (TTM) was 195. ==> Positive ==> Score 1.

Question 2. Cash Flow Return on Assets (CFROA)

Net cash flow from operating activities (operating cash flow) divided by Total Assets at the beginning of the year.

Score 1 if positive, 0 if negative.

Otter Tail's current Cash Flow from Operations (TTM) was 409. ==> Positive ==> Score 1.

Question 3. Change in Return on Assets

Compare this year's return on assets (1) to last year's return on assets.

Score 1 if it's higher, 0 if it's lower.

ROA (This Year)=Net Income/Total Assets (Jun25)
=195.069/3765.288
=0.05180719

ROA (Last Year)=Net Income/Total Assets (Jun24)
=286.156/3460.783
=0.08268533

Otter Tail's return on assets of this year was 0.05180719. Otter Tail's return on assets of last year was 0.08268533. ==> Last year is higher ==> Score 0.

Question 4. Quality of Earnings (Accrual)

Compare Cash flow return on assets (2) to return on assets (1)

Score 1 if CFROA > ROA, 0 if CFROA <= ROA.

Otter Tail's current Net Income (TTM) was 195. Otter Tail's current Cash Flow from Operations (TTM) was 409. ==> 409 > 195 ==> CFROA > ROA ==> Score 1.

Funding

Question 5. Change in Gearing or Leverage

Compare this year's gearing (long-term debt divided by average total assets) to last year's gearing.

Score 0 if this year's gearing is higher, 1 otherwise.

Gearing (This Year: Jun26)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun25 to Jun26
=1132.889/4003.9608
=0.28294208

Gearing (Last Year: Jun25)=Long-Term Debt & Capital Lease Obligation/Average Total Assets from Jun24 to Jun25
=1043.374/3628.3372
=0.28756258

Otter Tail's gearing of this year was 0.28294208. Otter Tail's gearing of last year was 0.28756258. ==> This year is lower or equal to last year. ==> Score 1.

Question 6. Change in Working Capital (Liquidity)

Compare this year's current ratio (current assets divided by current liabilities) to last year's current ratio.

Score 1 if this year's current ratio is higher, 0 if it's lower

Current Ratio (This Year: Jun26)=Total Current Assets/Total Current Liabilities
=837.353/490.568
=1.70690506

Current Ratio (Last Year: Jun25)=Total Current Assets/Total Current Liabilities
=674.41/203.48
=3.31437979

Otter Tail's current ratio of this year was 1.70690506. Otter Tail's current ratio of last year was 3.31437979. ==> Last year's current ratio is higher ==> Score 0.

Question 7. Change in Shares in Issue

Compare the number of shares in issue this year, to the number in issue last year.

Score 0 if there is larger number of shares in issue this year, 1 otherwise.

Otter Tail's number of shares in issue this year was 41.955. Otter Tail's number of shares in issue last year was 42.118. ==> There is smaller number of shares in issue this year, or the same. ==> Score 1.

Efficiency

Question 8. Change in Gross Margin

Compare this year's gross margin (Gross Profit divided by sales) to last year's.

Score 1 if this year's gross margin is higher, 0 if it's lower.

Gross Margin (This Year: TTM)=Gross Profit/Revenue
=554.849/1315.071
=0.42191562

Gross Margin (Last Year: TTM)=Gross Profit/Revenue
=567.01/1311.54
=0.43232383

Otter Tail's gross margin of this year was 0.42191562. Otter Tail's gross margin of last year was 0.43232383. ==> Last year's gross margin is higher ==> Score 0.

Question 9. Change in asset turnover

Compare this year's asset turnover (total sales for the year divided by total assets at the beginning of the year) to last year's asset turnover ratio.

Score 1 if this year's asset turnover ratio is higher, 0 if it's lower

Asset Turnover (This Year)=Revenue/Total Assets at the Beginning of This Year (Jun25)
=1315.071/3765.288
=0.34926173

Asset Turnover (Last Year)=Revenue/Total Assets at the Beginning of Last Year (Jun24)
=1311.54/3460.783
=0.37897204

Otter Tail's asset turnover of this year was 0.34926173. Otter Tail's asset turnover of last year was 0.37897204. ==> Last year's asset turnover is higher ==> Score 0.

Evaluation

Piotroski F-Score= Que. 1+ Que. 2+ Que. 3+Que. 4+Que. 5+Que. 6+Que. 7+Que. 8+Que. 9
=1+1+0+1+1+0+1+0+0
=5

Good or high score = 7, 8, 9
Bad or low score = 0, 1, 2, 3

Otter Tail has an F-score of 5 indicating the company's financial situation is typical for a stable company.

Frequently Asked Questions Learn more about Piotroski F-Score →
What does a Piotroski F-Score of 5 mean?
Otter Tail (OTTR) has a Piotroski F-Score of 5 as of Aug. 09, 2026. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Otter Tail and its competitors. This is 17% below median its historical median of 6.00. Over the past decade, Otter Tail's Piotroski F-Score has ranged from 4.00 to 8.00. According to the industry distribution chart, Otter Tail ranks #268 out of 543 companies in the Conglomerates industry, placing it in the top 49.4%.
Is Otter Tail's Piotroski F-Score too high?
Otter Tail's current Piotroski F-Score of 5 is 17% below median its 10-year median of 6.00. Over the past 10 years, this metric has ranged from a low of 4.00 to a high of 8.00. The Conglomerates industry median Piotroski F-Score is 5.00. Otter Tail's value of 5 is 0% at this industry median. Based on the distribution chart, Otter Tail ranks #268 out of 543 companies in the Conglomerates industry, which is above the industry midpoint. Overall, Otter Tail has a GF Score™ of 87/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Otter Tail's Piotroski F-Score compare to SEB and GHC?
According to the Conglomerates industry distribution chart, Otter Tail ranks #268 out of 543 companies for Piotroski F-Score. This puts Otter Tail in the upper half of its industry. The industry median Piotroski F-Score is 5.00. Otter Tail's value of 5 is 0% at this benchmark. Historically, Otter Tail's own Piotroski F-Score has ranged from 4.00 to 8.00 over the past decade. While the company's 10-year median is 6.00 vs. the industry median of 5.00, Otter Tail has consistently been at 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 Piotroski F-Score for a Conglomerates company?
The median Piotroski F-Score among Conglomerates companies is 5.00, based on 543 companies in the industry. Companies in the top quartile (top 25%) have a Piotroski F-Score significantly above this median, while those in the bottom quartile fall well below. However, Piotroski F-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Otter Tail's current Piotroski F-Score of 5 is 0% at 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 Piotroski F-Score mean?
A high Piotroski F-Score can signal that a stock is expensive relative to its fundamentals. The Piotroski F-score grades a company's business operating strength from 0-9. View historical data on Otter Tail and its competitors. For the Conglomerates industry, the median Piotroski F-Score is 5.00 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Otter Tail's current Piotroski F-Score is 5, which is 17% below median its own 10-year median of 6.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Otter Tail stock overvalued right now?
Based on GuruFocus' analysis, Otter Tail (OTTR) is currently considered Modestly Overvalued. The stock's GF Value™ is $82.81, compared to a current price of $93.79 — trading 13.3% above its estimated fair value. The current Piotroski F-Score is 5, which is 17% below median its 10-year median of 6.00 and 0% at the Conglomerates industry median of 5.00. Otter Tail's overall GF Score™ is 87/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Piotroski F-Score calculated?
Piotroski F-Score is calculated from a company's financial statements. For Otter Tail (OTTR), the current Piotroski F-Score is 5 as of Aug. 09, 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 Otter Tail (OTTR) Overvalued in 2026?

Based on GuruFocus' analysis, Otter Tail stock appears to be overvalued. The current stock price of $93.79 is trading 13.3% above its estimated GF Value™ of $82.81. GuruFocus considers Otter Tail to be Modestly Overvalued.

Key valuation signals for OTTR:

  • Piotroski F-Score: 5 (17% below median its 10-year median of 6.00)
  • GF Value™: $82.81 vs. price of $93.79 (13.3% above fair value)
  • GF Score™: 87/100 with 8 warning signs
  • Industry Position: 0% at the Conglomerates median (#268 of 543)

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


Otter Tail Business Description

Other Exchanges OT4:Germany
Address 215 South Cascade Street, P.O. Box 496, Fergus Falls, MN, USA, 56538-0496
Otter Tail Corp is a U.S. energy company that operates in the electric (produces and sells electricity), manufacturing (fabricates metal components), and plastics segments (pipes for water uses). The company conducts its operations and acquires the majority of its revenue in the U.S. in the states of Minnesota, South Dakota, and North Dakota. The majority of the company's revenue is derived from the Electric segment and commercial customers, although it generates revenue from residential and industrial customers, as well.
87GF Score

Get the complete analysis for OTTR

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

$93.79
Price
$82.81
GF Value